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|
{
config,
lib,
...
}:
let
cfg = config.depot.net.sshd;
inherit (lib)
mkOption
mkDefault
mkIf
types
;
in
{
options.depot.net.sshd = {
enable = mkOption {
type = types.bool;
default = false;
description = "Enable hardened SSH service.";
};
publish = mkOption {
type = types.bool;
default = false;
description = "Publish SSH service over mDNS.";
};
};
config = mkIf cfg.enable {
services.openssh = {
enable = true;
startWhenNeeded = true;
openFirewall = true;
hostKeys = lib.singleton {
path = "/persist/certs/ssh/ssh_host_ed25519_key";
type = "ed25519";
};
settings = {
UsePAM = false;
X11Forwarding = false;
PermitRootLogin = "prohibit-password";
PasswordAuthentication = mkDefault false;
# Ciphers = [ "chacha20-poly1305@openssh.com" ];
# Macs = [ "hmac-sha2-512-etm@openssh.com" ];
# KexAlgorithms = [ "curve25519-sha256@libssh.org" ];
};
sftpServerExecutable = "internal-sftp";
sftpFlags = [
"-f AUTHPRIV"
"-l INFO"
];
# extraConfig =
# let
# pubkeyTypes = lib.strings.concatStringsSep "," [
# "sk-ssh-ed25519-cert-v01@openssh.com"
# "ssh-ed25519-cert-v01@openssh.com"
# "ssh-ed25519"
# ];
# in
# "PubkeyAcceptedKeyTypes ${pubkeyTypes}";
};
environment.etc."systemd/dnssd/ssh.dnssd".text = mkIf cfg.publish ''
[Service]
Name=%H
Type=_ssh._tcp
Port=22
TxtText=hello world
'';
};
}
|
