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Add default chain and default BantimeRndtime settings and make configurable through the settings page

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This commit is contained in:
Michael Reber
2026-02-08 19:43:34 +01:00
parent 5f14da5934
commit 1a2df7b252
15 changed files with 330 additions and 44 deletions
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14
pkg/web/handlers.go
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@@ -2129,10 +2129,12 @@ func UpdateSettingsHandler(c *gin.Context) {
oldSettings.DefaultJailEnable != newSettings.DefaultJailEnable ||
ignoreIPsChanged ||
oldSettings.Bantime != newSettings.Bantime ||
oldSettings.BantimeRndtime != newSettings.BantimeRndtime ||
oldSettings.Findtime != newSettings.Findtime ||
oldSettings.Maxretry != newSettings.Maxretry ||
oldSettings.Banaction != newSettings.Banaction ||
oldSettings.BanactionAllports != newSettings.BanactionAllports
oldSettings.BanactionAllports != newSettings.BanactionAllports ||
oldSettings.Chain != newSettings.Chain
if defaultSettingsChanged {
config.DebugLog("Fail2Ban DEFAULT settings changed, pushing to all enabled servers")
@@ -2348,6 +2350,10 @@ func ApplyFail2banSettings(jailLocalPath string) error {
// TODO: -> maybe we store [DEFAULT] block in memory, replace lines
// or do a line-based approach. Example is simplistic:
chain := s.Chain
if chain == "" {
chain = "INPUT"
}
newLines := []string{
"[DEFAULT]",
fmt.Sprintf("enabled = %t", s.DefaultJailEnable),
@@ -2358,8 +2364,12 @@ func ApplyFail2banSettings(jailLocalPath string) error {
fmt.Sprintf("maxretry = %d", s.Maxretry),
fmt.Sprintf("banaction = %s", s.Banaction),
fmt.Sprintf("banaction_allports = %s", s.BanactionAllports),
"",
fmt.Sprintf("chain = %s", chain),
}
if s.BantimeRndtime != "" {
newLines = append(newLines, fmt.Sprintf("bantime.rndtime = %s", s.BantimeRndtime))
}
newLines = append(newLines, "")
content := strings.Join(newLines, "\n")
return os.WriteFile(jailLocalPath, []byte(content), 0644)