Merge pull request #47 from shizunge/dependabot/github_actions/docker/build-push-action-4.0.0

Bump docker/build-push-action from 3.3.0 to 4.0.0
Merge pull request #46 from shizunge/dependabot/github_actions/docker/setup-buildx-action-2.4.0
2023-02-11 01:29:57 -08:00 · 2023-02-11 01:29:47 -08:00 · 2023-02-11 01:24:59 -08:00 · 2023-02-11 01:06:16 -08:00 · 2023-02-11 00:53:31 -08:00 · 2023-02-10 22:46:45 -08:00
15 changed files with 530 additions and 163 deletions
--- a/.github/workflows/docker-hub-build-push-on-push.yml
+++ b/.github/workflows/docker-hub-build-push-on-push.yml
@@ -0,0 +1,56 @@
+name: Build docker image and push to docker hub on push
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  PLATFORMS: "linux/amd64,linux/arm64,linux/arm/v7"
+  
+jobs:
+  build_and_push:
+    name: Build and push Docker image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        
+      - name: Extract tag string
+        id: git
+        shell: bash
+        run: |
+          RELEASE_VERSION="dev-$(date +%s)"
+          echo "::set-output name=image_tag::${RELEASE_VERSION}"
+          echo "Action image_tag=${RELEASE_VERSION}"
+      
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+        
+      - name: Install buildx
+        uses: docker/setup-buildx-action@v2.4.0
+        
+      - name: Login to docker hub
+        uses: docker/login-action@v2.1.0
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v2.1.0
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ github.token }}
+        
+      - name: Build and push ${{ github.repository }}:${{ steps.git.outputs.image_tag }}
+        uses: docker/build-push-action@v4.0.0
+        with:
+          platforms: ${{ env.PLATFORMS }}
+          push: true
+          tags: |
+            ${{ github.repository }}:${{ steps.git.outputs.image_tag }}
+            ${{ github.repository }}:development
+            ghcr.io/${{ github.repository }}:${{ steps.git.outputs.image_tag }}
+            ghcr.io/${{ github.repository }}:development
+
--- a/.github/workflows/docker-hub-build-push-on-release.yml
+++ b/.github/workflows/docker-hub-build-push-on-release.yml
@@ -5,7 +5,7 @@ on:
    types: # This configuration does not affect the page_build event above
      - created
 env:
-  PLATFORMS: "linux/amd64,linux/386,linux/arm64,linux/arm/v7,linux/arm/v6,linux/s390x"
+  PLATFORMS: "linux/amd64,linux/arm64,linux/arm/v7"
  
 jobs:
  build_and_push:
@@ -27,23 +27,23 @@ jobs:
        uses: docker/setup-qemu-action@v2
        
      - name: Install buildx
-        uses: docker/setup-buildx-action@v2.0.0
+        uses: docker/setup-buildx-action@v2.4.0
        
      - name: Login to docker hub
-        uses: docker/login-action@v2.0.0
+        uses: docker/login-action@v2.1.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2.0.0
+        uses: docker/login-action@v2.1.0
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ github.token }}
        
      - name: Build and push ${{ github.repository }}:${{ steps.git.outputs.image_tag }}
-        uses: docker/build-push-action@v3.0.0
+        uses: docker/build-push-action@v4.0.0
        with:
          platforms: ${{ env.PLATFORMS }}
          push: true
--- a/13
+++ b/13
@@ -1,19 +1,20 @@
-FROM golang:alpine AS build
+FROM golang AS build

-ADD . /go/src/app
-WORKDIR /go/src/app
+RUN mkdir /endlessh
+ADD . /endlessh
+WORKDIR /endlessh
 RUN go mod tidy
 RUN go build -o endlessh .

-FROM alpine:latest
+FROM gcr.io/distroless/base

 LABEL org.opencontainers.image.title=endlessh-go
 LABEL org.opencontainers.image.description="Endlessh: an SSH tarpit"
 LABEL org.opencontainers.image.vendor="Shizun Ge"
 LABEL org.opencontainers.image.licenses=GPLv3

-COPY --from=build /go/src/app/endlessh /usr/bin/endlessh
+COPY --from=build /endlessh/endlessh /endlessh
 EXPOSE 2222 2112
 USER nobody
-ENTRYPOINT  ["/usr/bin/endlessh"]
+ENTRYPOINT  ["/endlessh"]
 CMD ["-logtostderr", "-v=1"]
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@

 A golang implementation of [endlessh](https://nullprogram.com/blog/2019/03/22/) exporting Prometheus metrics, visualized by a Grafana dashboard.

-![screenshot](https://github.com/shizunge/endlessh-go/raw/master/dashboard/screenshot.png)
+![screenshot](https://github.com/shizunge/endlessh-go/raw/main/dashboard/screenshot.png)

 ## Introduction

@@ -52,7 +52,7 @@ Usage of ./endlessh-go
  -geoip_supplier string
        Supplier to obtain Geohash of IPs. Possible values are "off", "ip-api", "freegeoip", "max-mind-db" (default "off")
  -host string
-        Listening address (default "0.0.0.0")
+        SSH listening address (default "0.0.0.0")
  -interval_ms int
        Message millisecond delay (default 1000)
  -line_length int
@@ -68,9 +68,11 @@ Usage of ./endlessh-go
  -max_mind_db string
        Path to the MaxMind DB file.
  -port string
-        Listening port (default "2222")
+        SSH listening port (default "2222")
  -prometheus_entry string
        Entry point for prometheus (default "metrics")
+  -prometheus_host string
+        The address for prometheus (default "0.0.0.0")
  -prometheus_port string
        The port for prometheus (default "2112")
  -stderrthreshold value
@@ -98,7 +100,7 @@ The metrics is off by default, you can turn it via the CLI argument `-enable_pro

 It listens to port `2112` and entry point is `/metrics` by default. The port and entry point can be changed via CLI arguments.

-The endlessh-go server stores the geohash of attackers as a label on `endlessh_client_open_count`, which is also off by default. You can turn it on via the CLI argument `-geoip_supplier`. The endlessh-go uses service from either [ip-api](https://ip-api.com/) or [freegeoip](https://freegeoip.live/), which may enforce a query rate and limit commercial use. Visit their website for their terms and policies.
+The endlessh-go server stores the geohash of attackers as a label on `endlessh_client_open_count`, which is also off by default. You can turn it on via the CLI argument `-geoip_supplier`. The endlessh-go uses service from [ip-api](https://ip-api.com/), which may enforce a query rate and limit commercial use. Visit their website for their terms and policies.

 You could also use an offline GeoIP database from [MaxMind](https://www.maxmind.com) by setting `-geoip_supplier` to *max-mind-db* and `-max_mind_db` to the path of the database file.

--- a/coordinates/country.go
+++ b/coordinates/country.go
@@ -0,0 +1,264 @@
+// Copyright (C) 2023 Shizun Ge
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+//
+
+package coordinates
+
+// Map country's ISO to their capital's latitude and longitude.
+// Country's ISO see https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
+type Location struct {
+	Latitude  float64
+	Longitude float64
+}
+
+var Country = map[string]Location{
+	"AD": {42.5, 1.5},
+	"AE": {24.4511, 54.3969},
+	"AF": {34.5328, 69.1658},
+	"AG": {17.1211, -61.8447},
+	"AI": {18.2167, -63.05},
+	"AL": {41.33, 19.82},
+	"AM": {40.1814, 44.5144},
+	"AO": {-8.8383, 13.2344},
+	"AR": {-34.5997, -58.3819},
+	"AS": {-14.274, -170.7046},
+	"AT": {48.2083, 16.3725},
+	"AU": {-35.2931, 149.1269},
+	"AW": {12.5186, -70.0358},
+	"AZ": {40.3667, 49.8352},
+	"BA": {43.8563, 18.4132},
+	"BB": {13.0975, -59.6167},
+	"BD": {23.7289, 90.3944},
+	"BE": {50.8353, 4.3314},
+	"BF": {12.3686, -1.5275},
+	"BG": {42.6979, 23.3217},
+	"BH": {26.225, 50.5775},
+	"BI": {-3.3825, 29.3611},
+	"BJ": {6.402, 2.518},
+	"BL": {17.8958, -62.8508},
+	"BM": {32.2942, -64.7839},
+	"BN": {4.9167, 114.9167},
+	"BO": {-16.4942, -68.1475},
+	"BR": {-15.7939, -47.8828},
+	"BS": {25.0667, -77.3333},
+	"BT": {27.4833, 89.6333},
+	"BW": {-24.6569, 25.9086},
+	"BY": {53.9022, 27.5618},
+	"BZ": {17.25, -88.7675},
+	"CA": {45.4247, -75.695},
+	"CD": {-4.3317, 15.3139},
+	"CF": {4.3732, 18.5628},
+	"CG": {-4.2667, 15.2833},
+	"CH": {46.948, 7.4474},
+	"CI": {5.3364, -4.0267},
+	"CK": {-21.207, -159.771},
+	"CL": {-33.45, -70.6667},
+	"CM": {3.8578, 11.5181},
+	"CN": {39.904, 116.4075},
+	"CO": {4.6126, -74.0705},
+	"CR": {9.9333, -84.0833},
+	"CU": {23.1367, -82.3589},
+	"CV": {14.9177, -23.5092},
+	"CW": {12.108, -68.935},
+	"CX": {-10.4167, 105.7167},
+	"CY": {35.1725, 33.365},
+	"CZ": {50.0833, 14.4167},
+	"DE": {52.5167, 13.3833},
+	"DJ": {11.595, 43.1481},
+	"DK": {55.6805, 12.5615},
+	"DM": {15.3, -61.3833},
+	"DO": {18.4764, -69.8933},
+	"DZ": {36.7764, 3.0586},
+	"EC": {-0.22, -78.5125},
+	"EE": {59.4372, 24.745},
+	"EG": {30.0444, 31.2358},
+	"ER": {15.3333, 38.9167},
+	"ES": {40.4167, -3.7167},
+	"ET": {9.0272, 38.7369},
+	"FI": {60.1756, 24.9342},
+	"FJ": {-18.1333, 178.4333},
+	"FK": {-51.7, -57.85},
+	"FM": {6.9178, 158.185},
+	"FO": {62, -6.7833},
+	"FR": {48.8566, 2.3522},
+	"GA": {0.3901, 9.4544},
+	"GB": {51.5072, -0.1275},
+	"GD": {12.0444, -61.7417},
+	"GE": {41.7225, 44.7925},
+	"GF": {4.933, -52.33},
+	"GH": {5.6037, -0.187},
+	"GI": {36.1324, -5.3781},
+	"GL": {64.175, -51.7333},
+	"GM": {13.4531, -16.5775},
+	"GN": {9.538, -13.6773},
+	"GP": {16.0104, -61.7055},
+	"GQ": {3.7521, 8.7737},
+	"GR": {37.9842, 23.7281},
+	"GS": {-54.2833, -36.5},
+	"GT": {14.6099, -90.5252},
+	"GU": {13.4745, 144.7504},
+	"GW": {11.8592, -15.5956},
+	"GY": {6.7833, -58.1667},
+	"HK": {22.3069, 114.1831},
+	"HN": {14.0942, -87.2067},
+	"HR": {45.8131, 15.9772},
+	"HT": {18.5425, -72.3386},
+	"HU": {47.4983, 19.0408},
+	"ID": {-6.2146, 106.8451},
+	"IE": {53.3497, -6.2603},
+	"IL": {31.7833, 35.2167},
+	"IM": {54.15, -4.4819},
+	"IN": {28.6139, 77.209},
+	"IQ": {33.35, 44.4167},
+	"IR": {35.7, 51.4167},
+	"IS": {64.1475, -21.935},
+	"IT": {41.8931, 12.4828},
+	"JE": {49.1858, -2.11},
+	"JM": {17.9714, -76.7931},
+	"JO": {31.95, 35.9333},
+	"JP": {35.6839, 139.7744},
+	"KE": {-1.2864, 36.8172},
+	"KG": {42.8667, 74.5667},
+	"KH": {11.5696, 104.921},
+	"KI": {1.3382, 173.0176},
+	"KM": {-11.7036, 43.2536},
+	"KN": {17.2983, -62.7342},
+	"KP": {39.03, 125.73},
+	"KR": {37.56, 126.99},
+	"KW": {29.375, 47.98},
+	"KY": {19.2866, -81.3744},
+	"KZ": {51.1333, 71.4333},
+	"LA": {17.9667, 102.6},
+	"LB": {33.8869, 35.5131},
+	"LC": {14.0167, -60.9833},
+	"LI": {47.1397, 9.5219},
+	"LK": {6.9, 79.9164},
+	"LR": {6.3106, -10.8047},
+	"LS": {-29.31, 27.48},
+	"LT": {54.6833, 25.2833},
+	"LU": {49.6106, 6.1328},
+	"LV": {56.9475, 24.1069},
+	"LY": {32.8752, 13.1875},
+	"MA": {26.0928, -10.6089},
+	"MC": {43.7396, 7.4069},
+	"MD": {47.0228, 28.8353},
+	"ME": {42.4397, 19.2661},
+	"MF": {18.0706, -63.0847},
+	"MG": {-18.9386, 47.5214},
+	"MH": {7.0918, 171.3802},
+	"MK": {41.9833, 21.4333},
+	"ML": {12.6458, -7.9922},
+	"MM": {16.795, 96.16},
+	"MN": {47.9214, 106.9055},
+	"MP": {15.2137, 145.7546},
+	"MQ": {14.6104, -61.08},
+	"MR": {18.0858, -15.9785},
+	"MS": {16.7928, -62.2106},
+	"MT": {35.8978, 14.5125},
+	"MU": {-20.1667, 57.5},
+	"MV": {4.175, 73.5083},
+	"MW": {-13.9833, 33.7833},
+	"MX": {19.4333, -99.1333},
+	"MY": {3.1478, 101.6953},
+	"MZ": {-25.9153, 32.5764},
+	"NA": {-22.57, 17.0836},
+	"NC": {-22.2625, 166.4443},
+	"NE": {13.5086, 2.1111},
+	"NF": {-29.0569, 167.9617},
+	"NG": {9.0556, 7.4914},
+	"NI": {12.15, -86.2667},
+	"NL": {52.08, 4.31},
+	"NO": {59.9111, 10.7528},
+	"NP": {27.7167, 85.3667},
+	"NR": {-0.5477, 166.9209},
+	"NU": {-19.056, -169.921},
+	"NZ": {-41.2889, 174.7772},
+	"OM": {23.6139, 58.5922},
+	"PA": {9, -79.5},
+	"PE": {-12.06, -77.0375},
+	"PF": {-17.5334, -149.5667},
+	"PG": {-9.4789, 147.1494},
+	"PH": {14.6, 120.9833},
+	"PK": {33.6989, 73.0369},
+	"PL": {52.23, 21.0111},
+	"PM": {46.7811, -56.1764},
+	"PN": {-25.0667, -130.0833},
+	"PR": {18.4037, -66.0636},
+	"PT": {38.708, -9.139},
+	"PW": {7.5006, 134.6242},
+	"PY": {-25.3, -57.6333},
+	"QA": {25.3, 51.5333},
+	"RE": {-20.8789, 55.4481},
+	"RO": {44.4, 26.0833},
+	"RS": {44.8167, 20.4667},
+	"RU": {55.7558, 37.6178},
+	"RW": {-1.9536, 30.0606},
+	"SA": {24.65, 46.71},
+	"SB": {-9.4333, 159.95},
+	"SC": {-4.6236, 55.4544},
+	"SD": {15.6031, 32.5265},
+	"SE": {59.3294, 18.0686},
+	"SG": {1.3, 103.8},
+	"SH": {-15.9251, -5.7179},
+	"SI": {46.05, 14.5167},
+	"SK": {48.1447, 17.1128},
+	"SL": {8.4833, -13.2331},
+	"SM": {43.932, 12.4484},
+	"SN": {14.7319, -17.4572},
+	"SO": {2.0408, 45.3425},
+	"SR": {5.8667, -55.1667},
+	"SS": {4.85, 31.6},
+	"ST": {0.3333, 6.7333},
+	"SV": {13.6989, -89.1914},
+	"SX": {18.0256, -63.0492},
+	"SY": {33.5131, 36.2919},
+	"SZ": {-26.3208, 31.1617},
+	"TC": {21.4664, -71.136},
+	"TD": {12.11, 15.05},
+	"TG": {6.1319, 1.2228},
+	"TH": {13.75, 100.5167},
+	"TJ": {38.5731, 68.7864},
+	"TL": {-8.5536, 125.5783},
+	"TM": {37.95, 58.3833},
+	"TN": {36.8008, 10.18},
+	"TO": {-21.1347, -175.2083},
+	"TR": {39.93, 32.85},
+	"TT": {10.6667, -61.5167},
+	"TV": {-8.5243, 179.1942},
+	"TZ": {-6.8, 39.2833},
+	"UA": {50.45, 30.5236},
+	"UG": {0.3136, 32.5811},
+	"US": {38.9047, -77.0163},
+	"UY": {-34.8667, -56.1667},
+	"UZ": {41.3, 69.2667},
+	"VA": {41.9033, 12.4534},
+	"VC": {13.1667, -61.2333},
+	"VE": {10.5, -66.9333},
+	"VG": {18.4167, -64.6167},
+	"VI": {18.3419, -64.9332},
+	"VN": {21.0245, 105.8412},
+	"VU": {-17.7333, 168.3167},
+	"WF": {-13.2825, -176.1736},
+	"WS": {-13.8333, -171.8333},
+	"XG": {31.5069, 34.456},
+	"XK": {42.6633, 21.1622},
+	"XR": {78.2167, 15.6333},
+	"XW": {31.7764, 35.2269},
+	"YE": {15.35, 44.2},
+	"YT": {-12.7871, 45.275},
+	"ZA": {-25.7464, 28.1881},
+	"ZM": {-15.4167, 28.2833},
+	"ZW": {-17.8292, 31.0522},
+}
--- a/dashboard/endlessh.json
+++ b/dashboard/endlessh.json
@@ -9,7 +9,7 @@
      "pluginName": "Prometheus"
    }
  ],
-  "__elements": [],
+  "__elements": {},
  "__requires": [
    {
      "type": "panel",
@@ -21,7 +21,7 @@
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
-      "version": "8.3.6"
+      "version": "9.3.6"
    },
    {
      "type": "panel",
@@ -58,7 +58,10 @@
    "list": [
      {
        "builtIn": 1,
-        "datasource": "-- Grafana --",
+        "datasource": {
+          "type": "datasource",
+          "uid": "grafana"
+        },
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
@@ -73,14 +76,38 @@
      }
    ]
  },
-  "description": "Dashboard for endlessh (add option All to job and host)",
-  "editable": true,
+  "description": "Dashboard for endlessh (Update variables on time range changes)",
+  "editable": false,
  "fiscalYearStartMonth": 0,
  "gnetId": 15156,
  "graphTooltip": 0,
  "id": null,
-  "iteration": 1645482521172,
-  "links": [],
+  "links": [
+    {
+      "asDropdown": false,
+      "icon": "external link",
+      "includeVars": false,
+      "keepTime": false,
+      "tags": [],
+      "targetBlank": true,
+      "title": "GitHub",
+      "tooltip": "GitHub",
+      "type": "link",
+      "url": "https://github.com/shizunge/endlessh-go"
+    },
+    {
+      "asDropdown": false,
+      "icon": "external link",
+      "includeVars": false,
+      "keepTime": false,
+      "tags": [],
+      "targetBlank": true,
+      "title": "Grafana",
+      "tooltip": "Grafana Dashboard",
+      "type": "link",
+      "url": "https://grafana.com/grafana/dashboards/15156"
+    }
+  ],
  "liveNow": false,
  "panels": [
    {
@@ -128,7 +155,7 @@
        "text": {},
        "textMode": "auto"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -252,7 +279,7 @@
        "text": {},
        "textMode": "auto"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -377,7 +404,7 @@
        "text": {},
        "textMode": "auto"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -440,7 +467,7 @@
        "text": {},
        "textMode": "auto"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -553,7 +580,7 @@
        "text": {},
        "textMode": "value"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -697,7 +724,7 @@
        "text": {},
        "textMode": "auto"
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -726,6 +753,8 @@
            "mode": "palette-classic"
          },
          "custom": {
+            "axisCenteredZero": false,
+            "axisColorMode": "text",
            "axisLabel": "",
            "axisPlacement": "auto",
            "barAlignment": 0,
@@ -777,15 +806,21 @@
      "options": {
        "legend": {
          "calcs": [],
-          "displayMode": "hidden",
-          "placement": "bottom"
+          "displayMode": "list",
+          "placement": "bottom",
+          "showLegend": false
        },
        "tooltip": {
-          "mode": "single"
+          "mode": "single",
+          "sort": "none"
        }
      },
      "targets": [
        {
+          "datasource": {
+            "type": "datasource",
+            "uid": "-- Dashboard --"
+          },
          "panelId": 20,
          "refId": "A"
        }
@@ -826,6 +861,7 @@
        "legend": {
          "displayMode": "table",
          "placement": "right",
+          "showLegend": true,
          "values": [
            "value",
            "percent"
@@ -840,7 +876,8 @@
          "values": false
        },
        "tooltip": {
-          "mode": "single"
+          "mode": "single",
+          "sort": "none"
        }
      },
      "targets": [
@@ -936,6 +973,13 @@
          "color": {
            "mode": "continuous-GrYlRd"
          },
+          "custom": {
+            "hideFrom": {
+              "legend": false,
+              "tooltip": false,
+              "viz": false
+            }
+          },
          "mappings": [],
          "thresholds": {
            "mode": "absolute",
@@ -967,6 +1011,7 @@
          "mouseWheelZoom": false,
          "showAttribution": false,
          "showDebug": false,
+          "showMeasure": false,
          "showScale": false,
          "showZoom": true
        },
@@ -1012,14 +1057,18 @@
            "type": "markers"
          }
        ],
+        "tooltip": {
+          "mode": "details"
+        },
        "view": {
+          "allLayers": true,
          "id": "zero",
          "lat": 0,
          "lon": 0,
          "zoom": 1
        }
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -1114,6 +1163,7 @@
            "align": "auto",
            "displayMode": "auto",
            "filterable": true,
+            "inspect": false,
            "minWidth": 50
          },
          "links": [],
@@ -1205,7 +1255,7 @@
          }
        ]
      },
-      "pluginVersion": "8.3.6",
+      "pluginVersion": "9.3.6",
      "targets": [
        {
          "datasource": {
@@ -1396,7 +1446,7 @@
    }
  ],
  "refresh": "",
-  "schemaVersion": 34,
+  "schemaVersion": 37,
  "style": "dark",
  "tags": [
    "prometheus"
@@ -1421,7 +1471,7 @@
          "query": "label_values(endlessh_client_open_count_total, job)",
          "refId": "StandardVariableQuery"
        },
-        "refresh": 1,
+        "refresh": 2,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
@@ -1445,7 +1495,7 @@
          "query": "label_values(endlessh_client_open_count_total{job=~\"$job\"}, instance)",
          "refId": "StandardVariableQuery"
        },
-        "refresh": 1,
+        "refresh": 2,
        "regex": "",
        "skipUrlSync": false,
        "sort": 1,
@@ -1461,6 +1511,6 @@
  "timezone": "",
  "title": "Endlessh",
  "uid": "ATIxYkO7k",
-  "version": 7,
+  "version": 10,
  "weekStart": ""
 }
--- a/examples/README.md
+++ b/examples/README.md
@@ -1,24 +1,6 @@
 # Examples

-## docker compose
+## docker-simple

-This is an example how to setup endlessh-go, Prometheus, and Grafana using [docker compose](https://docs.docker.com/compose/). The reference of the compose file can be found [here](https://docs.docker.com/compose/compose-file/).
+An example how to setup endlessh-go, Prometheus, and Grafana using [docker compose](https://docs.docker.com/compose/).

-*prometheus.yml* is used as a [Prometheus configuration](https://prometheus.io/docs/prometheus/latest/configuration/configuration/).
-
-*grafana-datasource.yml* is used to provision a data source for Grafana to ease the setup, though Grafana data source can also be setup manually.
-
-To start the stack, in the *examples* folder, run:
-
-```
-sudo docker-compose up -d
-```
-
-This example exposes the following ports. Except the SSH port, you should not expose other ports to public without protections (not included in this example) in production.
-
-* **2222**: The SSH port. You may test endlessh-go by running `ssh -p 2222 localhost`. Your SSH client should hang. View the log of endlessh-go by running `sudo docker logs endlessh`.
-* **2112**: The Prometheus metrics exported by endlessh-go. Go to [http://localhost:2112/metrics](http://localhost:2112/metrics) in your web browser to view the metrics.
-* **9090**: Prometheus web interface. Go to [http://localhost:9090](http://localhost:9090) in your web browser for Prometheus. You can check whether the target of endlessh-go is up (Click Status, then Targets).
-* **3000**: Grafana. Go to [http://localhost:3000](http://localhost:3000) in your web browser for Grafana. Use username *examples* and password *examples* to login.
-
-In this example, we do not provision a dashboard for Grafana. You need to manually load the endlessh-go dashboard, by either importing it from the Grafana.com using ID [15156](https://grafana.com/grafana/dashboards/15156), or pasting the dashboard JSON text to the text area. See the [Grafana documentation](https://grafana.com/docs/grafana/latest/dashboards/export-import/) about import. Then select *Prometheus* as the data source.
--- a/examples/docker-simple/README.md
+++ b/examples/docker-simple/README.md
@@ -0,0 +1,22 @@
+## docker compose
+
+This is an example how to setup endlessh-go, Prometheus, and Grafana using [docker compose](https://docs.docker.com/compose/). The reference of the compose file can be found [here](https://docs.docker.com/compose/compose-file/).
+
+*prometheus.yml* is used as a [Prometheus configuration](https://prometheus.io/docs/prometheus/latest/configuration/configuration/).
+
+*grafana-datasource.yml* is used to provision a data source for Grafana to ease the setup, though Grafana data source can also be setup manually.
+
+To start the stack, in the *examples* folder, run:
+
+```
+sudo docker-compose up -d
+```
+
+This example exposes the following ports. Except the SSH port, you should not expose other ports to public without protections (not included in this example) in production.
+
+* **2222**: The SSH port. You may test endlessh-go by running `ssh -p 2222 localhost`. Your SSH client should hang. View the log of endlessh-go by running `sudo docker logs endlessh`.
+* **2112**: The Prometheus metrics exported by endlessh-go. Go to [http://localhost:2112/metrics](http://localhost:2112/metrics) in your web browser to view the metrics.
+* **9090**: Prometheus web interface. Go to [http://localhost:9090](http://localhost:9090) in your web browser for Prometheus. You can check whether the target of endlessh-go is up (Click Status, then Targets).
+* **3000**: Grafana. Go to [http://localhost:3000](http://localhost:3000) in your web browser for Grafana. Use username *examples* and password *examples* to login.
+
+In this example, we do not provision a dashboard for Grafana. You need to manually load the endlessh-go dashboard, by either importing it from the Grafana.com using ID [15156](https://grafana.com/grafana/dashboards/15156), or pasting the dashboard JSON text to the text area. See the [Grafana documentation](https://grafana.com/docs/grafana/latest/dashboards/export-import/) about import. Then select *Prometheus* as the data source.
--- a/examples/docker-simple/docker-compose.yml
+++ b/examples/docker-simple/docker-compose.yml
--- a/examples/docker-simple/grafana-datasource.yml
+++ b/examples/docker-simple/grafana-datasource.yml
--- a/examples/docker-simple/prometheus.yml
+++ b/examples/docker-simple/prometheus.yml
--- a/geoip.go
+++ b/geoip.go
@@ -1,4 +1,4 @@
-// Copyright (C) 2021 Shizun Ge
+// Copyright (C) 2021-2023 Shizun Ge
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -24,6 +24,8 @@ import (
 	"net/http"
 	"strings"

+	"endlessh-go/coordinates"
+
 	"github.com/oschwald/geoip2-golang"
 	"github.com/pierrre/geohash"
 )
@@ -32,55 +34,25 @@ var (
 	maxMindDbFileName *string
 )

-type freegeoip struct {
-	Ip          string  `json:"ip"`
-	CountryCode string  `json:"country_code"`
-	CountryName string  `json:"country_name"`
-	RegionCode  string  `json:"region_code"`
-	RegionName  string  `json:"region_name"`
-	City        string  `json:"city"`
-	Zipcode     string  `json:"zipcode"`
-	Latitude    float64 `json:"latitude"`
-	Longitude   float64 `json:"longitude"`
-	MetroCode   int     `json:"metro_code"`
-	AreaCode    int     `json:"area_code"`
-}
-
-func geohashAndLocationFromFreegeoip(address string) (string, string, string, error) {
-	var geo freegeoip
-	response, err := http.Get("https://freegeoip.live/json/" + address)
-	if err != nil {
-		return "s000", "Unknown", "Unknown", err
-	}
-	defer response.Body.Close()
-
-	body, err := ioutil.ReadAll(response.Body)
-	if err != nil {
-		return "s000", "Unknown", "Unknown", err
-	}
-
-	err = json.Unmarshal(body, &geo)
-	if err != nil {
-		return "s000", "Unknown", "Unknown", err
-	}
-
+func composeLocation(country string, region string, city string) string {
 	var locations []string
-	for _, s := range []string{geo.CountryName, geo.RegionName, geo.City} {
+	for _, s := range []string{country, region, city} {
 		if strings.TrimSpace(s) != "" {
 			locations = append(locations, s)
 		}
 	}
 	location := strings.Join(locations, ", ")
 	if location == "" {
-		location = "Unknown"
+		return "Unknown"
 	}
-	country := geo.CountryName
-	if country == "" {
-		country = "Unknown"
-	}
-	gh := geohash.EncodeAuto(geo.Latitude, geo.Longitude)
+	return location
+}

-	return gh, country, location, nil
+func composeCountry(country string) string {
+	if country == "" {
+		return "Unknown"
+	}
+	return country
 }

 type ipapi struct {
@@ -119,21 +91,9 @@ func geohashAndLocationFromIpapi(address string) (string, string, string, error)
 		return "s000", "Unknown", "Unknown", fmt.Errorf("failed to query %v via ip-api: status: %v, message: %v", address, geo.Status, geo.Message)
 	}

-	var locations []string
-	for _, s := range []string{geo.CountryName, geo.RegionName, geo.City} {
-		if strings.TrimSpace(s) != "" {
-			locations = append(locations, s)
-		}
-	}
-	location := strings.Join(locations, ", ")
-	if location == "" {
-		location = "Unknown"
-	}
-	country := geo.CountryName
-	if country == "" {
-		country = "Unknown"
-	}
 	gh := geohash.EncodeAuto(geo.Latitude, geo.Longitude)
+	country := composeCountry(geo.CountryName)
+	location := composeLocation(geo.CountryName, geo.RegionName, geo.City)

 	return gh, country, location, nil
 }
@@ -146,13 +106,32 @@ func geohashAndLocationFromMaxMindDb(address string) (string, string, string, er
 	defer db.Close()
 	// If you are using strings that may be invalid, check that ip is not nil
 	ip := net.ParseIP(address)
-	record, err := db.City(ip)
+	cityRecord, err := db.City(ip)
 	if err != nil {
 		return "s000", "Unknown", "Unknown", err
 	}
-	gh := geohash.EncodeAuto(record.Location.Latitude, record.Location.Longitude)
-	country := record.Country.Names["en"]
-	location := record.City.Names["en"]
+	countryName := cityRecord.Country.Names["en"]
+	cityName := cityRecord.City.Names["en"]
+	latitude := cityRecord.Location.Latitude
+	longitude := cityRecord.Location.Longitude
+	iso := cityRecord.Country.IsoCode
+	if latitude == 0 && longitude == 0 {
+		// In case of using Country DB, city is not available.
+		loc, ok := coordinates.Country[iso]
+		if ok {
+			latitude = loc.Latitude
+			longitude = loc.Longitude
+		} else {
+			if iso != "" {
+				// For debugging, adding the iso to the country name.
+				countryName = countryName + " (" + iso + ")"
+			}
+		}
+	}
+	gh := geohash.EncodeAuto(latitude, longitude)
+	country := composeCountry(countryName)
+	location := composeLocation(countryName, "", cityName)
+
 	return gh, country, location, nil
 }

@@ -162,8 +141,6 @@ func geohashAndLocation(address string, geoipSupplier string) (string, string, s
 		return "s000", "Geohash off", "Geohash off", nil
 	case "ip-api":
 		return geohashAndLocationFromIpapi(address)
-	case "freegeoip":
-		return geohashAndLocationFromFreegeoip(address)
 	case "max-mind-db":
 		return geohashAndLocationFromMaxMindDb(address)
 	default:
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module endlessh-go

-go 1.18
+go 1.20

 require (
 	github.com/golang/glog v1.0.0
-	github.com/oschwald/geoip2-golang v1.7.0
-	github.com/pierrre/geohash v1.0.0
-	github.com/prometheus/client_golang v1.12.2
+	github.com/oschwald/geoip2-golang v1.8.0
+	github.com/pierrre/geohash v1.1.0
+	github.com/prometheus/client_golang v1.14.0
 )

 require (
@@ -14,10 +14,10 @@ require (
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
-	github.com/oschwald/maxminddb-golang v1.9.0 // indirect
-	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.32.1 // indirect
-	github.com/prometheus/procfs v0.7.3 // indirect
-	golang.org/x/sys v0.0.0-20220325203850-36772127a21f // indirect
-	google.golang.org/protobuf v1.26.0 // indirect
+	github.com/oschwald/maxminddb-golang v1.10.0 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.37.0 // indirect
+	github.com/prometheus/procfs v0.8.0 // indirect
+	golang.org/x/sys v0.0.0-20220804214406-8e32c043e418 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
@@ -34,9 +34,7 @@ dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Codefor/geohash v0.0.0-20140723084247-1b41c28e3a9d h1:iG9B49Q218F/XxXNRM7k/vWf7MKmLIS8AcJV9cGN4nA=
-github.com/Codefor/geohash v0.0.0-20140723084247-1b41c28e3a9d/go.mod h1:RVnhzAX71far8Kc3TQeA0k/dcaEKUnTDSOyet/JCmGI=
 github.com/TomiHiltunen/geohash-golang v0.0.0-20150112065804-b3e4e625abfb h1:wumPkzt4zaxO4rHPBrjDK8iZMR41C1qs7njNqlacwQg=
-github.com/TomiHiltunen/geohash-golang v0.0.0-20150112065804-b3e4e625abfb/go.mod h1:QiYsIBRQEO+Z4Rz7GoI+dsHVneZNONvhczuA+llOZNM=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@@ -47,7 +45,6 @@ github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+Ce
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/broady/gogeohash v0.0.0-20120525094510-7b2c40d64042 h1:iEdmkrNMLXbM7ecffOAtZJQOQUTE4iMonxrb5opUgE4=
-github.com/broady/gogeohash v0.0.0-20120525094510-7b2c40d64042/go.mod h1:f1L9YvXvlt9JTa+A17trQjSMM6bV40f+tHjB+Pi+Fqk=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
@@ -58,22 +55,24 @@ github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMn
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fanixk/geohash v0.0.0-20150324002647-c1f9b5fa157a h1:Fyfh/dsHFrC6nkX7H7+nFdTd1wROlX/FxEIWVpKYf1U=
-github.com/fanixk/geohash v0.0.0-20150324002647-c1f9b5fa157a/go.mod h1:UgNw+PTmmGN8rV7RvjvnBMsoTU8ZXXnaT3hYsDTBlgQ=
 github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/log v0.1.0/go.mod h1:zbhenjAZHb184qTLMA9ZjW7ThYL0H2mk7Q6pNt4vbaY=
+github.com/go-kit/log v0.2.0/go.mod h1:NwTd00d/i8cPZ3xOwwiv2PO5MOcx78fFErGNcVmBjv0=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
+github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
@@ -116,8 +115,8 @@ github.com/google/go-cmp v0.4.1/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
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@@ -152,8 +151,7 @@ github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
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@@ -161,40 +159,44 @@ github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3Rllmb
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@@ -204,8 +206,8 @@ github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
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@@ -279,12 +281,15 @@ golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81R
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@@ -329,17 +334,20 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
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 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -386,7 +394,6 @@ golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.4.0/go.mod h1:8k5glujaEP+g9n7WNsDg8QP6cUVNI86fCNMcbazEtwE=
 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
@@ -462,8 +469,9 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
+google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -475,6 +483,7 @@ gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/main.go
+++ b/main.go
@@ -1,4 +1,4 @@
-// Copyright (C) 2021 Shizun Ge
+// Copyright (C) 2021-2023 Shizun Ge
 //
 // This program is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -44,7 +44,7 @@ var (
 	clientSeconds         *prometheus.CounterVec
 )

-func initPrometheus(connHost, prometheusPort, prometheusEntry string) {
+func initPrometheus(prometheusHost, prometheusPort, prometheusEntry string) {
 	totalClients = prometheus.NewCounterFunc(
 		prometheus.CounterOpts{
 			Name: "endlessh_client_open_count_total",
@@ -99,8 +99,8 @@ func initPrometheus(connHost, prometheusPort, prometheusEntry string) {
 	prometheus.MustRegister(clientSeconds)
 	http.Handle("/"+prometheusEntry, promhttp.Handler())
 	go func() {
-		glog.Infof("Starting Prometheus on %v:%v, entry point is /%v", connHost, prometheusPort, prometheusEntry)
-		http.ListenAndServe(connHost+":"+prometheusPort, nil)
+		glog.Infof("Starting Prometheus on %v:%v, entry point is /%v", prometheusHost, prometheusPort, prometheusEntry)
+		http.ListenAndServe(prometheusHost+":"+prometheusPort, nil)
 	}()
 }

@@ -109,12 +109,13 @@ func main() {
 	bannerMaxLength := flag.Int64("line_length", 32, "Maximum banner line length")
 	maxClients := flag.Int64("max_clients", 4096, "Maximum number of clients")
 	connType := flag.String("conn_type", "tcp", "Connection type. Possible values are tcp, tcp4, tcp6")
-	connHost := flag.String("host", "0.0.0.0", "Listening address")
-	connPort := flag.String("port", "2222", "Listening port")
+	connHost := flag.String("host", "0.0.0.0", "SSH listening address")
+	connPort := flag.String("port", "2222", "SSH listening port")
 	prometheusEnabled := flag.Bool("enable_prometheus", false, "Enable prometheus")
+	prometheusHost := flag.String("prometheus_host", "0.0.0.0", "The address for prometheus")
 	prometheusPort := flag.String("prometheus_port", "2112", "The port for prometheus")
 	prometheusEntry := flag.String("prometheus_entry", "metrics", "Entry point for prometheus")
-	geoipSupplier := flag.String("geoip_supplier", "off", "Supplier to obtain Geohash of IPs. Possible values are \"off\", \"ip-api\", \"freegeoip\", \"max-mind-db\"")
+	geoipSupplier := flag.String("geoip_supplier", "off", "Supplier to obtain Geohash of IPs. Possible values are \"off\", \"ip-api\", \"max-mind-db\"")
 	maxMindDbFileName = flag.String("max_mind_db", "", "Path to the MaxMind DB file.")

 	flag.Usage = func() {
@@ -123,8 +124,11 @@ func main() {
 	}
 	flag.Parse()

+	if *connType == "tcp6" && *prometheusHost == "0.0.0.0" {
+		*prometheusHost = "[::]"
+	}
 	if *prometheusEnabled {
-		initPrometheus(*connHost, *prometheusPort, *prometheusEntry)
+		initPrometheus(*prometheusHost, *prometheusPort, *prometheusEntry)
 	}

 	rand.Seed(time.Now().UnixNano())
Author	SHA1	Message	Date
Shizun Ge	8e1251ab4f	Merge pull request #47 from shizunge/dependabot/github_actions/docker/build-push-action-4.0.0 Bump docker/build-push-action from 3.3.0 to 4.0.0	2023-02-11 01:29:57 -08:00
Shizun Ge	193c34d325	Merge pull request #46 from shizunge/dependabot/github_actions/docker/setup-buildx-action-2.4.0 Bump docker/setup-buildx-action from 2.3.0 to 2.4.0	2023-02-11 01:29:47 -08:00
Shizun Ge	8aeed47955	cleanup unnecessary codes	2023-02-11 01:24:59 -08:00
Shizun Ge	374c2b74ad	report unknow location for local ip	2023-02-11 01:06:16 -08:00
Shizun Ge	c50302622e	hard coded country to coordinates. update copyright date.	2023-02-11 00:53:31 -08:00
Shizun Ge	144e58aa7a	fix using country db. We cannot get coordinates from the country now.	2023-02-10 22:46:45 -08:00
Shizun Ge	81ab381551	use geohash of the country if city is not available.	2023-02-10 22:26:31 -08:00
Shizun Ge	d9202cfca6	remove freegeoip.live as a provider	2023-02-10 22:22:32 -08:00
Shizun Ge	7c55c713a0	update go version to 1.20	2023-02-10 22:10:02 -08:00
dependabot[bot]	5bb568e6e5	Bump docker/build-push-action from 3.3.0 to 4.0.0 Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.3.0 to 4.0.0. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v3.3.0...v4.0.0) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>	2023-02-06 08:03:47 +00:00
dependabot[bot]	1ff33d19b7	Bump docker/setup-buildx-action from 2.3.0 to 2.4.0 Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2.3.0 to 2.4.0. - [Release notes](https://github.com/docker/setup-buildx-action/releases) - [Commits](https://github.com/docker/setup-buildx-action/compare/v2.3.0...v2.4.0) --- updated-dependencies: - dependency-name: docker/setup-buildx-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2023-02-06 08:03:42 +00:00
Shizun Ge	41d0618fa2	fix loading variables on time changes	2023-02-01 22:44:57 -08:00
Shizun Ge	0750caa4e9	Merge pull request #44 from shizunge/dependabot/github_actions/docker/setup-buildx-action-2.3.0 Bump docker/setup-buildx-action from 2.2.1 to 2.3.0	2023-01-31 23:37:24 -08:00
dependabot[bot]	ebabfd3790	Bump docker/setup-buildx-action from 2.2.1 to 2.3.0 Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2.2.1 to 2.3.0. - [Release notes](https://github.com/docker/setup-buildx-action/releases) - [Commits](https://github.com/docker/setup-buildx-action/compare/v2.2.1...v2.3.0) --- updated-dependencies: - dependency-name: docker/setup-buildx-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2023-01-30 08:04:56 +00:00
Shizun Ge	fdf9842025	dashboard updates variables on time range change.	2023-01-29 20:59:43 -08:00
Shizun Ge	2773554b0a	Merge pull request #43 from shizunge/dependabot/github_actions/docker/build-push-action-3.3.0 Bump docker/build-push-action from 3.2.0 to 3.3.0	2023-01-19 00:05:32 -08:00
dependabot[bot]	288c04f5e8	Bump docker/build-push-action from 3.2.0 to 3.3.0 Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.2.0 to 3.3.0. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v3.2.0...v3.3.0) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2023-01-16 08:04:23 +00:00
Shizun Ge	2fb8972eb3	Merge pull request #37 from shizunge/dependabot/go_modules/github.com/prometheus/client_golang-1.14.0 Bump github.com/prometheus/client_golang from 1.13.0 to 1.14.0	2022-12-21 00:43:52 -08:00
dependabot[bot]	43cf7695f1	Bump github.com/prometheus/client_golang from 1.13.0 to 1.14.0 Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.13.0 to 1.14.0. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.13.0...v1.14.0) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-11-14 08:05:26 +00:00
Shizun Ge	ae2f8c4baf	update screen shot path	2022-10-29 21:36:12 -07:00
Shizun Ge	642ee0513e	Merge pull request #35 from shizunge/dependabot/github_actions/docker/setup-buildx-action-2.2.1 Bump docker/setup-buildx-action from 2.1.0 to 2.2.1	2022-10-29 21:34:45 -07:00
dependabot[bot]	7f6b6718e1	Bump docker/setup-buildx-action from 2.1.0 to 2.2.1 Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2.1.0 to 2.2.1. - [Release notes](https://github.com/docker/setup-buildx-action/releases) - [Commits](https://github.com/docker/setup-buildx-action/compare/v2.1.0...v2.2.1) --- updated-dependencies: - dependency-name: docker/setup-buildx-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-10-24 08:27:09 +00:00
Shizun Ge	7f0f69d7b5	fix the workflow name	2022-10-12 19:10:41 -07:00
Shizun Ge	b90cdfc2a1	change tag to development	2022-10-12 19:04:21 -07:00
Shizun Ge	e8f7a1b0bb	keep only amd64, arm64 and armv7 builds	2022-10-12 18:57:42 -07:00
Shizun Ge	7d78f5161e	do not update description on development builds	2022-10-12 18:50:11 -07:00
Shizun Ge	46e5a624be	use distroless as base	2022-10-12 18:46:37 -07:00
Shizun Ge	5e4c3bb21a	build docker image on push to main	2022-10-12 18:43:43 -07:00
Shizun Ge	75d7307134	Merge pull request #32 from shizunge/dependabot/github_actions/docker/login-action-2.1.0 Bump docker/login-action from 2.0.0 to 2.1.0	2022-10-12 17:41:28 -07:00
Shizun Ge	ece420b56b	Merge pull request #33 from shizunge/dependabot/github_actions/docker/build-push-action-3.2.0 Bump docker/build-push-action from 3.1.1 to 3.2.0	2022-10-12 17:41:19 -07:00
Shizun Ge	c87861b4d6	Merge pull request #34 from shizunge/dependabot/github_actions/docker/setup-buildx-action-2.1.0 Bump docker/setup-buildx-action from 2.0.0 to 2.1.0	2022-10-12 17:41:08 -07:00
dependabot[bot]	69ea717d13	Bump docker/setup-buildx-action from 2.0.0 to 2.1.0 Bumps [docker/setup-buildx-action](https://github.com/docker/setup-buildx-action) from 2.0.0 to 2.1.0. - [Release notes](https://github.com/docker/setup-buildx-action/releases) - [Commits](https://github.com/docker/setup-buildx-action/compare/v2.0.0...v2.1.0) --- updated-dependencies: - dependency-name: docker/setup-buildx-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-10-13 00:39:53 +00:00
dependabot[bot]	ff87416602	Bump docker/build-push-action from 3.1.1 to 3.2.0 Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.1.1 to 3.2.0. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v3.1.1...v3.2.0) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-10-13 00:39:50 +00:00
dependabot[bot]	231518cb79	Bump docker/login-action from 2.0.0 to 2.1.0 Bumps [docker/login-action](https://github.com/docker/login-action) from 2.0.0 to 2.1.0. - [Release notes](https://github.com/docker/login-action/releases) - [Commits](https://github.com/docker/login-action/compare/v2.0.0...v2.1.0) --- updated-dependencies: - dependency-name: docker/login-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-10-13 00:39:44 +00:00
Shizun Ge	0950175e43	Merge pull request #31 from shizunge/prometheus update Docker build base	2022-10-10 20:21:55 -07:00
Shizun Ge	d7c0c2ed79	Merge branch 'master' into prometheus	2022-10-10 20:08:58 -07:00
Shizun Ge	e8d7ae0889	update Docker build base	2022-10-10 20:06:59 -07:00
Shizun Ge	9aa7040976	Merge pull request #30 from shizunge/dependabot/go_modules/github.com/pierrre/geohash-1.1.0 Bump github.com/pierrre/geohash from 1.0.0 to 1.1.0	2022-09-24 13:44:46 -07:00
dependabot[bot]	5d6b1cdfe2	Bump github.com/pierrre/geohash from 1.0.0 to 1.1.0 Bumps [github.com/pierrre/geohash](https://github.com/pierrre/geohash) from 1.0.0 to 1.1.0. - [Release notes](https://github.com/pierrre/geohash/releases) - [Commits](https://github.com/pierrre/geohash/compare/v1.0.0...v1.1.0) --- updated-dependencies: - dependency-name: github.com/pierrre/geohash dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-08-22 08:23:14 +00:00
Shizun Ge	feadcf47e9	Merge pull request #29 from shizunge/dependabot/go_modules/github.com/oschwald/geoip2-golang-1.8.0 Bump github.com/oschwald/geoip2-golang from 1.7.0 to 1.8.0	2022-08-09 12:20:33 -07:00
dependabot[bot]	13a22dce68	Bump github.com/oschwald/geoip2-golang from 1.7.0 to 1.8.0 Bumps [github.com/oschwald/geoip2-golang](https://github.com/oschwald/geoip2-golang) from 1.7.0 to 1.8.0. - [Release notes](https://github.com/oschwald/geoip2-golang/releases) - [Commits](https://github.com/oschwald/geoip2-golang/compare/v1.7.0...v1.8.0) --- updated-dependencies: - dependency-name: github.com/oschwald/geoip2-golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-08-09 17:39:18 +00:00
Shizun Ge	b91fe8ab0c	Merge pull request #28 from shizunge/dependabot/go_modules/github.com/prometheus/client_golang-1.13.0 Bump github.com/prometheus/client_golang from 1.12.2 to 1.13.0	2022-08-09 10:38:41 -07:00
Shizun Ge	1d868a27a8	Merge pull request #27 from shizunge/dependabot/github_actions/docker/build-push-action-3.1.1 Bump docker/build-push-action from 3.1.0 to 3.1.1	2022-08-09 10:38:33 -07:00
dependabot[bot]	17aa4a6a89	Bump github.com/prometheus/client_golang from 1.12.2 to 1.13.0 Bumps [github.com/prometheus/client_golang](https://github.com/prometheus/client_golang) from 1.12.2 to 1.13.0. - [Release notes](https://github.com/prometheus/client_golang/releases) - [Changelog](https://github.com/prometheus/client_golang/blob/main/CHANGELOG.md) - [Commits](https://github.com/prometheus/client_golang/compare/v1.12.2...v1.13.0) --- updated-dependencies: - dependency-name: github.com/prometheus/client_golang dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-08-08 08:24:43 +00:00
dependabot[bot]	7a3b02b445	Bump docker/build-push-action from 3.1.0 to 3.1.1 Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.1.0 to 3.1.1. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v3.1.0...v3.1.1) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com>	2022-08-08 08:24:37 +00:00
Shizun Ge	492db60e81	Merge pull request #25 from shizunge/dependabot/github_actions/docker/build-push-action-3.1.0 Bump docker/build-push-action from 3.0.0 to 3.1.0	2022-07-25 17:25:49 -07:00
Shizun Ge	5bc042c0a5	Merge pull request #26 from shizunge/prometheus Prometheus	2022-07-25 17:25:30 -07:00
dependabot[bot]	32c599c3a5	Bump docker/build-push-action from 3.0.0 to 3.1.0 Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3.0.0 to 3.1.0. - [Release notes](https://github.com/docker/build-push-action/releases) - [Commits](https://github.com/docker/build-push-action/compare/v3.0.0...v3.1.0) --- updated-dependencies: - dependency-name: docker/build-push-action dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>	2022-07-25 08:18:54 +00:00
Shizun Ge	5f597b596b	move the example to docker-simple folder	2022-07-17 21:13:36 -07:00
Shizun Ge	09833807a8	Add GitHub and Grafana links to the dashboard	2022-07-17 21:07:47 -07:00
Shizun Ge	fad9a4cded	allow bind prometheus to a different interface than the ssh one.	2022-07-11 18:41:57 -07:00
Shizun Ge	55c96bb2c7	Merge pull request #24 from shizunge/offline set location to unknown when city is not available.	2022-07-10 22:47:53 -07:00
Shizun Ge	0bb4f046ca	set location to unknown when city is not available.	2022-07-10 22:47:05 -07:00