47 lines
920 B
Nix
47 lines
920 B
Nix
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let
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act = a: [
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"nft46"
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"${a} element inet reaction ipvXbans { <ip> }"
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];
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journalctl = u: [
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"journalctl"
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"-fn0"
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"-u"
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"${u}.service"
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];
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ban = after: {
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ban.cmd = act "add";
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unban = {
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inherit after;
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cmd = act "delete";
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};
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};
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available = {
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ssh = {
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cmd = journalctl "sshd";
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filters = {
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failedlogin = {
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regex = [
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"authentication failure;.*rhost=<ip>"
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"Connection reset by authenticating user .* <ip>"
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"Connection closed by invalid user .* <ip> port .*"
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"Failed password for .* from <ip>"
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"Invalid user .* from <ip> port .*"
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"Unable to negotiate with <ip> port .*"
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];
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actions = ban "48h";
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};
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};
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};
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};
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in
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builtins.mapAttrs (_: builtins.foldl' (a: s: a // { ${s} = available.${s}; }) { }) {
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default = [ "ssh" ];
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}
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