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Jitsi Meet Server mit Grafana Monitoring installieren unter Debian Buster

Verfasst: Son 19. Apr 2020, 00:33
von h3rb3rn
aktualisierte Fassung vom 02.05.2020

Native Jitsi Meet Installation unter Debian Buster https://jitsi.org/downloads/ubuntu-debi ... tructions/


Jitsi Repository hinzufügen

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wget -qO - https://download.jitsi.org/jitsi-key.gpg.key | sudo apt-key add -
sudo sh -c "echo 'deb https://download.jitsi.org stable/' > /etc/apt/sources.list.d/jitsi-stable.list";
sudo apt-get -y update;
Bei der Installation ein selbst signiertes Zertifikat generieren lassen. Das ist wichtig für Prosody!!!

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sudo apt-get -y install jitsi-meet nginx certbot;
Hier wird das Let's Encrypt Zeritifikat für den Nginx erstellt und eingebunden.

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/usr/share/jitsi-meet/scripts/install-letsencrypt-cert.sh


Debugging unter Debian Buster!
Die URL jitsi.example.com gegen die eigene austauschen!

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rm /etc/nginx/modules-enabled/60-jitsi-meet.conf
sed -i 's/4444/443/g' /etc/nginx/sites-available/jitsi.example.com.conf
sed -i 's/ssl_protocols TLSv1 TLSv1.1 TLSv1.2;/ssl_protocols TLSv1.2 TLSv1.3;/g' /etc/nginx/sites-available/jitsi.example.com.conf

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sed -i 's/--https_certificate =/https_certificate =/g' /etc/prosody/prosody.cfg.lua


Optionale Einstellungen (nach jedem Update erneut ausführen)

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sed -i 's/--statistics =/statistics =/g' /etc/prosody/prosody.cfg.lua
sed -i 's/VIDEOBRIDGE_MAX_MEMORY=3072m;/VIDEOBRIDGE_MAX_MEMORY=8192m;/g' /usr/share/jitsi-videobridge/jvb.sh
sed -i 's/Fellow Jitster/Frank Nord/g' /usr/share/jitsi-meet/interface_config.js
sed -i 's/SHOW_JITSI_WATERMARK: true,/SHOW_JITSI_WATERMARK: false,/g' /usr/share/jitsi-meet/interface_config.js
sed -i 's/DISABLE_JOIN_LEAVE_NOTIFICATIONS: false,/DISABLE_JOIN_LEAVE_NOTIFICATIONS: true,/g' /usr/share/jitsi-meet/interface_config.js
sed -i "s/JITSI_WATERMARK_LINK: 'https:\/\/jitsi.org',/JITSI_WATERMARK_LINK: 'https:\/\/jitsi.example.com',/g" /usr/share/jitsi-meet/interface_config.js | grep WATERMARK
sed -i 's/\/\/ startWithAudioMuted: false,/startWithAudioMuted: true,/g' /etc/jitsi/meet/jitsi.example.com-config.js
sed -i 's/\/\/ startWithVideoMuted: false,/startWithVideoMuted: true,/g' /etc/jitsi/meet/jitsi.example.com-config.js
sed -i 's/enableNoisyMicDetection: true,/\/\/ enableNoisyMicDetection: true,/g' /etc/jitsi/meet/jitsi.example.com-config.js
sed -i "s/{ urls: 'stun:meet-jit-si-turnrelay.jitsi.net:443' }/\/\/ { urls: 'stun:meet-jit-si-turnrelay.jitsi.net:443' }/g" /etc/jitsi/meet/jitsi.example.com-config.js
sed -i "s/\/\/ { urls: 'stun:jitsi.example.com:443' },/{ urls: 'stun:jitsi.example.com:443' }/g" /etc/jitsi/meet/jitsi.example.com-config.js
sed -i 's/\/\/ useIPv6: true,/useIPv6: true,/g' /etc/jitsi/meet/jitsi.example.com-config.js
sed -i 's/\/\/ useNicks: false,/useNicks: true,/g' /etc/jitsi/meet/jitsi.example.com-config.js
sed -i "s/\/\/ defaultLanguage: 'en',/defaultLanguage: 'de',/g" /etc/jitsi/meet/jitsi.example.com-config.js
sed -i 's/\/\/ disableThirdPartyRequests: false,/disableThirdPartyRequests: true,/g' /etc/jitsi/meet/example.com-config.js
sed -i "s/^.level=INFO/.level=WARNING/g" /etc/jitsi/videobridge/logging.properties
Datenschutzerklärung hinzufügen

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sed -i 's/SHOW_POWERED_BY: false,/SHOW_POWERED_BY: true,/g' /usr/share/jitsi-meet/interface_config.js

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sed -i 's/{className:"poweredby",href:"http:\/\/jitsi.org",target:"_new"}/{className:"poweredby",href:"http:\/\/jitsi.dorf-post.de\/dsgvo.html",target:"_new"}/g' /usr/share/jitsi-meet/libs/app.bundle.min.js

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sed -i 's/"poweredby": "Betrieben von"/"poweredby": "DSGVO Link dieser autonomen Instanz von"/g' /usr/share/jitsi-meet/lang/main-de.json | grep powered
Inhalt der Datenschutzerklärung einfügen in /usr/share/jitisi-meet/dsgvo.html



Services neustarten

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systemctl restart nginx.service;
systemctl status nginx.service --no-pager;
systemctl restart prosody.service;
systemctl status prosody.service --no-pager;


Jitsi Monitoring mit dem TIG Stack

InfluxDB Installation
https://docs.influxdata.com/influxdb/v1 ... tallation/

Grafana Installation
https://grafana.com/docs/grafana/latest ... on/debian/

Telegraf auf dem Jitsi Meet Server installieren
https://docs.influxdata.com/telegraf/v1 ... tallation/

Code: Alles auswählen

sed -i 's/JVB_OPTS="--apis=,"/JVB_OPTS="--apis=rest,"/g' /etc/jitsi/videobridge/config
sed -i 's/org.jitsi.videobridge.STATISTICS_TRANSPORT=muc/org.jitsi.videobridge.STATISTICS_TRANSPORT=muc,colibri/g' /etc/jitsi/videobridge/sip-communicator.properties
Dashboard Import URL von https://grafana.com/grafana/dashboards/11969 oder den JSON Feed in Grafana importieren

Code: Alles auswählen

{
  "__inputs": [
    {
      "name": "DS_INFLUXDB",
      "label": "InfluxDB",
      "description": "",
      "type": "datasource",
      "pluginId": "influxdb",
      "pluginName": "InfluxDB"
    }
  ],
  "__requires": [
    {
      "type": "grafana",
      "id": "grafana",
      "name": "Grafana",
      "version": "6.6.2"
    },
    {
      "type": "panel",
      "id": "graph",
      "name": "Graph",
      "version": ""
    },
    {
      "type": "datasource",
      "id": "influxdb",
      "name": "InfluxDB",
      "version": "1.0.0"
    },
    {
      "type": "panel",
      "id": "stat",
      "name": "Stat",
      "version": ""
    }
  ],
  "annotations": {
    "list": [
      {
        "builtIn": 1,
        "datasource": "-- Grafana --",
        "enable": true,
        "hide": true,
        "iconColor": "rgba(0, 211, 255, 1)",
        "name": "Annotations & Alerts",
        "type": "dashboard"
      }
    ]
  },
  "description": "Gather performance metrics from Jitsi Meet Videoconferencing stack",
  "editable": true,
  "gnetId": 11969,
  "graphTooltip": 0,
  "id": null,
  "iteration": 1584914212832,
  "links": [],
  "panels": [
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 2,
        "x": 0,
        "y": 0
      },
      "id": 14,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            },
            "unit": "percent"
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "cpu_usage"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "CPU Usage",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 2,
        "x": 2,
        "y": 0
      },
      "id": 21,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "threads"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Threads",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 3,
        "x": 4,
        "y": 0
      },
      "id": 2,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "conferences"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Conferences running",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 3,
        "x": 7,
        "y": 0
      },
      "id": 5,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "largest_conference"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Largest Conference",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 3,
        "x": 10,
        "y": 0
      },
      "id": 17,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            },
            "unit": "ms"
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "alias": "RTT",
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            },
            {
              "params": [
                "none"
              ],
              "type": "fill"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "rtt_aggregate"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "RTT Aggregate",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 4,
        "w": 3,
        "x": 13,
        "y": 0
      },
      "id": 23,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            },
            "unit": "ms"
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "alias": "Jitter",
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            },
            {
              "params": [
                "none"
              ],
              "type": "fill"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "jitter_aggregate"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Jitter Aggregate",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 2,
        "w": 2,
        "x": 16,
        "y": 0
      },
      "id": 20,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "lastNotNull"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [
            {
              "params": [
                "$interval"
              ],
              "type": "time"
            },
            {
              "params": [
                "null"
              ],
              "type": "fill"
            }
          ],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "total_conferences_created"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "mean"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Cf created",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 2,
        "w": 2,
        "x": 18,
        "y": 0
      },
      "id": 15,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "mean"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                }
              ]
            },
            "unit": "decbytes"
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "none",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "alias": "bytes_rx",
          "groupBy": [],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "total_bytes_received"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "last"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Bytes RX",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 2,
        "w": 2,
        "x": 20,
        "y": 0
      },
      "id": 11,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "mean"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "audiochannels"
                ],
                "type": "field"
              },
              {
                "params": [],
                "type": "last"
              }
            ]
          ],
          "tags": [
            {
              "key": "host",
              "operator": "=~",
              "value": "/^$jitsi_host$/"
            }
          ]
        }
      ],
      "timeFrom": null,
      "timeShift": null,
      "title": "Audiochan",
      "type": "stat"
    },
    {
      "datasource": "${DS_INFLUXDB}",
      "gridPos": {
        "h": 2,
        "w": 2,
        "x": 22,
        "y": 0
      },
      "id": 3,
      "options": {
        "colorMode": "value",
        "fieldOptions": {
          "calcs": [
            "mean"
          ],
          "defaults": {
            "mappings": [],
            "thresholds": {
              "mode": "absolute",
              "steps": [
                {
                  "color": "green",
                  "value": null
                },
                {
                  "color": "red",
                  "value": 80
                }
              ]
            }
          },
          "overrides": [],
          "values": false
        },
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto"
      },
      "pluginVersion": "6.6.2",
      "targets": [
        {
          "groupBy": [],
          "measurement": "jitsi_stats",
          "orderByTime": "ASC",
          "policy": "default",
          "refId": "A",
          "resultFormat": "time_series",
          "select": [
            [
              {
                "params": [
                  "participants"
                ],
                "type": "field"
              },
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          "show": true
        }
      ],
      "yaxis": {
        "align": false,
        "alignLevel": null
      }
    }
  ],
  "refresh": "30s",
  "schemaVersion": 22,
  "style": "dark",
  "tags": [
    "jitsi"
  ],
  "templating": {
    "list": [
      {
        "allValue": null,
        "current": {},
        "datasource": "${DS_INFLUXDB}",
        "definition": "show tag values from \"jitsi_stats\" with key=\"host\"",
        "hide": 0,
        "includeAll": false,
        "label": null,
        "multi": false,
        "name": "jitsi_host",
        "options": [],
        "query": "show tag values from \"jitsi_stats\" with key=\"host\"",
        "refresh": 1,
        "regex": "",
        "skipUrlSync": false,
        "sort": 0,
        "tagValuesQuery": "",
        "tags": [],
        "tagsQuery": "",
        "type": "query",
        "useTags": false
      }
    ]
  },
  "time": {
    "from": "now-6h",
    "to": "now"
  },
  "timepicker": {
    "refresh_intervals": [
      "5s",
      "10s",
      "30s",
      "1m",
      "5m",
      "15m",
      "30m",
      "1h",
      "2h",
      "1d"
    ]
  },
  "timezone": "",
  "title": "Jitsi Meet",
  "uid": "mcfIHGrZz",
  "version": 44
}
Anlegen der /etc/telegraf/telegraf.d/jitsi.conf

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[[inputs.http]]
  name_override = "jitsi_stats"
  urls = [
    "http://localhost:8080/colibri/stats"
  ]

  data_format = "json"
Service neustarten

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systemctl restart telegraf.service
Firewall absicherung mit nftables

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apt install nftables
Inhalt der /etc/nftables.conf

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#!/usr/sbin/nft -f

flush ruleset

table firewall {
  chain incoming {
    type filter hook input priority 0; policy drop;

    iif lo accept comment "Accept any localhost traffic"
    ct state invalid drop comment "Drop invalid connections"
    ct state established,related accept comment "Accept traffic originated from us"

    meta l4proto icmp icmp type { destination-unreachable, router-solicitation, router-advertisement, time-exceeded, parameter-problem } accept comment "Accept ICMP"
    ip protocol igmp accept comment "Accept IGMP"

    # established/related connections
    ct state established,related accept

    # loopback interface
    iifname lo accept

    # icmp
    icmp type echo-request accept

    # open tcp ports: sshd (22), httpd (80)
    tcp dport {22,80,443} accept # ssh und nginx
    udp dport {10000} accept # videobridge
    ip saddr 78.xx.xx.123 tcp dport {6556,4505,4506} accept # monitoring TIG Stack und CheckMK
  }
}

table ip6 firewall {
  chain incoming {
    type filter hook input priority 0; policy drop;

    iif lo accept comment "Accept any localhost traffic"
    ct state invalid drop comment "Drop invalid connections"
    ct state established,related accept comment "Accept traffic originated from us"

    meta l4proto ipv6-icmp icmpv6 type { destination-unreachable, packet-too-big, time-exceeded, parameter-problem, mld-listener-query, mld-listener-report, mld-listener-reduction, nd-router-solicit, nd-router-advert, nd-neighbor-solicit, nd-neighbor-advert, ind-neighbor-solicit, ind-neighbor-advert, mld2-listener-report } accept comment "Accept ICMPv6"

    # established/related connections
    ct state established,related accept

    # invalid connections
    ct state invalid drop

    # loopback interface
    iifname lo accept

    # icmp
    # routers may also want: mld-listener-query, nd-router-solicit
    icmpv6 type {echo-request,nd-neighbor-solicit} accept

    # open tcp ports: sshd (22), httpd (80)
    tcp dport {22,80,443} accept # ssh und nginx
    udp dport {10000} accept # videobridge
    ip6 saddr 2a01:xx:xx::123 tcp dport {6556,4505,4506} accept # monitoring TIG Stack und CheckMK
  }
}

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systemctl enable nftables;
systemctl start nftables;
systemctl status nftables --no-pager

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nft list ruleset