tlaternet-server/configuration/services/fail2ban.nix

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{ pkgs, ... }: {
services.fail2ban = {
enable = true;
extraPackages = [ pkgs.ipset ];
banaction = "iptables-ipset-proto6-allports";
bantime-increment.enable = true;
jails = {
nginx-botsearch = ''
enabled = true
logpath = /var/log/nginx/access.log
'';
};
ignoreIP = [
"127.0.0.0/8"
"10.0.0.0/8"
"172.16.0.0/12"
"192.168.0.0/16"
];
};
# Allow metrics services to connect to the socket as well
users.groups.fail2ban = { };
systemd.services.fail2ban.serviceConfig = {
ExecStartPost =
"+"
+ (pkgs.writeShellScript "fail2ban-post-start" ''
while ! [ -S /var/run/fail2ban/fail2ban.sock ]; do
sleep 1
done
while ! ${pkgs.netcat}/bin/nc -zU /var/run/fail2ban/fail2ban.sock; do
sleep 1
done
${pkgs.coreutils}/bin/chown root:fail2ban /var/run/fail2ban /var/run/fail2ban/fail2ban.sock
${pkgs.coreutils}/bin/chmod 660 /var/run/fail2ban/fail2ban.sock
${pkgs.coreutils}/bin/chmod 710 /var/run/fail2ban
'');
};
}