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{ customUtils, lib, config, hostName, pkgs, ... }:
{
config = {
programs.ssh.knownHosts = lib.zipAttrsWith (_name: values: builtins.head values) (lib.mapAttrsToList (name: lib.mapAttrs' (type: value: lib.nameValuePair "${name}-${type}" value)) (customUtils.nixImport { dir = ./known-hosts; }));
systemd.user.services."ssh-agent".enable = lib.mkForce false; # ssh-agent should be done via home-manager
services.openssh = lib.mkIf config.services.openssh.enable {
hostKeys = [
{ path = "/etc/ssh/ssh_host_rsa_key";
type = "rsa";
}
{ path = "/etc/ssh/ssh_host_ed25519_key";
type = "ed25519";
}
];
ciphers = [ "chacha20-poly1305@openssh.com" "aes256-gcm@openssh.com" "aes256-ctr" ];
macs = [ "hmac-sha2-256-etm@openssh.com" "hmac-sha2-256" "hmac-sha2-512-etm@openssh.com" "hmac-sha2-512" ];
kexAlgorithms = [ "curve25519-sha256@libssh.org" "diffie-hellman-group-exchange-sha256" ];
moduliFile = config.sops.secrets.ssh_moduli.path;
extraConfig = ''
HostKeyAlgorithms sk-ssh-ed25519-cert-v01@openssh.com,ssh-ed25519-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,sk-ssh-ed25519@openssh.com,ssh-ed25519,rsa-sha2-256,rsa-sha2-512
'';
};
programs.ssh = {
ciphers = [ "chacha20-poly1305@openssh.com" "aes256-gcm@openssh.com" "aes256-ctr" ];
hostKeyAlgorithms = [ "sk-ssh-ed25519-cert-v01@openssh.com" "ssh-ed25519-cert-v01@openssh.com" "rsa-sha2-256-cert-v01@openssh.com" "rsa-sha2-512-cert-v01@openssh.com" "sk-ssh-ed25519@openssh.com" "ssh-ed25519" "rsa-sha2-256" "rsa-sha2-512" ];
kexAlgorithms = [ "curve25519-sha256@libssh.org" "diffie-hellman-group-exchange-sha256" ];
macs = [ "hmac-sha2-256-etm@openssh.com" "hmac-sha2-256" "hmac-sha2-512-etm@openssh.com" "hmac-sha2-512" ];
pubkeyAcceptedKeyTypes = [ "ssh-ed25519" "ssh-rsa" ];
extraConfig = ''
Host *
UseRoaming no
'';
};
sops.secrets = lib.mkIf config.services.openssh.enable {
ssh_host_rsa_key = {
key = "rsa";
path = "/etc/ssh/ssh_host_rsa_key";
sopsFile = ./host-keys + "/${hostName}.yaml";
};
ssh_host_ed25519_key = {
key = "ed25519";
path = "/etc/ssh/ssh_host_ed25519_key";
sopsFile = ./host-keys + "/${hostName}.yaml";
};
ssh_moduli = {
format = "binary";
path = "/etc/ssh/moduli";
sopsFile = ./host-moduli + "/${hostName}";
};
};
environment.etc = lib.mkIf config.services.openssh.enable {
"ssh/ssh_host_rsa_key.pub".text = config.services.openssh.knownHosts."${hostName}-rsa".publicKey;
"ssh/ssh_host_ed25519_key.pub".text = config.services.openssh.knownHosts."${hostName}-ed25519".publicKey;
};
environment.systemPackages = lib.mkIf config.services.openssh.enable (with pkgs; [
rxvt_unicode.terminfo alacritty.terminfo
]);
};
}
|
