opensnitch/wiki/Known-problems.md

GUI

GUI known problems

daemon

daemon known problems

General

Blank window after boot up

Desktop Environment does not boot up

If after installing OpenSnitch, or after changing the Default Action to deny, the Desktop Environment does not show up (after restart), try:

1. setting the DefaultAction back to allow
2. adding a rule to allow system apps.

In both cases the idea is to allow certain programs needed by KDE, Gnome, etc: dirmngr, xbrlapi, host, kdeinit5. more info #402:

Save it to /etc/opensnitchd/rules/000-allow-system-cmds.json

{
  "created": "2021-04-26T09:58:03.704090244+02:00",
  "updated": "2021-04-26T09:58:03.704216578+02:00",
  "name": "000-allow-system-cmds",
  "enabled": true,
  "precedence": true,
  "action": "allow",
  "duration": "always",
  "operator": {
    "type": "regexp",
    "operand": "process.path",
    "sensitive": false,
    "data": "^(/usr/bin/host|/usr/bin/xbrlapi|/usr/bin/dirmngr|/usr/bin/slim)",
    "list": []
  }
}

You can also allow all traffic to localhost (save it to /etc/opensnitchd/rules/000-allow-localhost.json):

{
  "created": "2021-04-26T09:58:03.704090244+02:00",
  "updated": "2021-04-26T09:58:03.704216578+02:00",
  "name": "000-allow-localhost",
  "enabled": true,
  "precedence": true,
  "action": "allow",
  "duration": "always",
  "operator": {
    "type": "network",
    "operand": "dest.network",
    "sensitive": false,
    "data": "127.0.0.0/8",
    "list": []
  }
}

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