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|
{
config,
lib,
pkgs,
...
}:
with lib; let
cfg = config.nixfiles.modules.openssh;
in {
options.nixfiles.modules.openssh = {
client.enable = mkEnableOption "OpenSSH client";
server.enable = mkEnableOption "OpenSSH server";
};
config = let
port = 22022; # Port 22 should be occupied by endlessh.
in
mkMerge [
(mkIf cfg.client.enable {
hm = {
home.packages = with pkgs; [mosh sshfs];
programs.ssh = {
enable = true;
hashKnownHosts = true;
controlMaster = "auto";
controlPersist = "24H";
serverAliveCountMax = 30;
serverAliveInterval = 60;
matchBlocks = let
mkBlock = name: {
hostname ? name,
port ? 22,
user ? my.username,
identityFile ? "${config.my.home}/.ssh/id_ed25519",
extraAttrs ? {},
}:
nameValuePair name ({inherit hostname port user identityFile;}
// extraAttrs);
internalServers =
mapAttrs' mkBlock
(mapAttrs (name: _: {
hostname = "${name}.${my.domain.shire}";
inherit port;
}) (filterAttrs (_: attr:
hasAttr "wireguard" attr
&& attr.isHeadless)
my.configurations));
in
internalServers
// (mapAttrs' mkBlock {
gitolite = {
user = "git";
hostname = "git.${my.domain.shire}";
inherit port;
};
});
};
};
})
(mkIf cfg.server.enable {
programs.mosh.enable = true;
services = {
openssh = {
enable = true;
ports = [port];
logLevel = "VERBOSE"; # Required by fail2ban.
permitRootLogin = "no";
passwordAuthentication = false;
};
fail2ban.jails.sshd = ''
enabled = true
mode = aggressive
port = ${toString port}
'';
};
})
];
}
|
