Files
nixconfig/modules/server/openssh/default.nix
2026-05-03 15:34:10 +02:00

27 lines
927 B
Nix

{ config, lib, ... }:
let
allUsers = lib.concatMap (peer: if peer.syscfg ? users then peer.syscfg.users else []) config.syscfg.peers;
groupedUsers = lib.groupBy (u: u.username) allUsers;
allowedUsernames = map (u: u.username) config.syscfg.users;
activeUsers = lib.filterAttrs (name: _: lib.elem name allowedUsernames) groupedUsers;
in {
config = lib.mkIf (config.syscfg.server ? nftables.enable) {
services.openssh = {
enable = true;
ports = [ 422 ];
banner = "";
settings = {
PasswordAuthentication = false;
PermitRootLogin = "no";
ClientAliveInterval = 60;
ClientAliveCountMax = 3;
TCPKeepAlive = true;
};
};
users.users = lib.mapAttrs (name: userList: {
openssh.authorizedKeys.keys = lib.unique (
lib.concatMap (u: if u ? pubssh then [ u.pubssh ] else []) userList
);
}) activeUsers;
};
}