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https://github.com/nmasur/dotfiles
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42 lines
1.2 KiB
Nix
42 lines
1.2 KiB
Nix
{ config, pkgs, lib, ... }: {
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options = {
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publicKey = lib.mkOption {
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type = lib.types.nullOr lib.types.str;
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description = "Public SSH key authorized for this system.";
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default = null;
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};
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permitRootLogin = lib.mkOption {
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type = lib.types.str;
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description = "Root login settings.";
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default = "no";
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};
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};
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config = lib.mkIf config.services.openssh.enable {
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services.openssh = {
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ports = [ 22 ];
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allowSFTP = true;
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settings = {
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GatewayPorts = "no";
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X11Forwarding = false;
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PasswordAuthentication = false;
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PermitRootLogin = config.permitRootLogin;
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};
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};
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users.users.${config.user}.openssh.authorizedKeys.keys =
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lib.mkIf (config.publicKey != null) [ config.publicKey ];
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# Implement a simple fail2ban service for sshd
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services.sshguard.enable = true;
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# Add terminfo for SSH from popular terminal emulators
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# Fix: terminfo now installs contour, which is broken on ARM
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# - https://github.com/NixOS/nixpkgs/pull/253334
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# - Will disable until fixed
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environment.enableAllTerminfo = pkgs.stdenv.isLinux && pkgs.stdenv.isx86_64;
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};
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}
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