2024-11-18 10:48:16 +01:00
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# Edit this configuration file to define what should be installed on
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# your system. Help is available in the configuration.nix(5) man page, on
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# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
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2024-11-18 12:11:32 +01:00
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{ pkgs, ... }:
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2024-11-18 10:48:16 +01:00
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{
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2024-11-18 12:11:32 +01:00
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imports = [
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# Include the results of the hardware scan.
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./hardware-configuration.nix
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# This will install and configure Forgejo
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./forgejo.nix
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];
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2024-11-18 10:48:16 +01:00
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# Use the systemd-boot EFI boot loader.
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boot.loader.systemd-boot.enable = true;
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boot.loader.efi.canTouchEfiVariables = true;
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# networking.hostName = "nixos"; # Define your hostname.
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# Pick only one of the below networking options.
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# networking.wireless.enable = true; # Enables wireless support via wpa_supplicant.
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# networking.networkmanager.enable = true; # Easiest to use and most distros use this by default.
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# Networking
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networking = {
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hostName = "vm02116";
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domain = "procolix.com";
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interfaces = {
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eth0 = {
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ipv4 = {
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addresses = [
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{
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address = "185.206.232.34";
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prefixLength = 24;
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}
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];
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};
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ipv6 = {
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addresses = [
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{
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address = "2a00:51c0:12:1201::20";
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prefixLength = 64;
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}
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];
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};
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};
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};
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defaultGateway = {
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address = "185.206.232.1";
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interface = "eth0";
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};
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defaultGateway6 = {
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address = "2a00:51c0:12:1201::1";
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interface = "eth0";
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};
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nameservers = [
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"2a00:51c0::5fd7:b906"
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"95.215.185.7"
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];
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2024-11-18 10:48:16 +01:00
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firewall.enable = false;
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nftables = {
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enable = true;
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ruleset = ''
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#!/usr/sbin/nft -f
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2024-11-18 10:48:16 +01:00
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flush ruleset
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2024-11-18 10:48:16 +01:00
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########### define usefull variables here #####################
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define wan = eth0
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define ssh_allow = {
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83.161.147.127/32, # host801 ipv4
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95.215.185.92/32, # host088 ipv4
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95.215.185.211/32, # host089 ipv4
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95.215.185.34/32, # nagios2 ipv4
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95.215.185.235, # ansible-hq
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}
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define snmp_allow = {
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95.215.185.31/32, # cacti ipv4
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}
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define nrpe_allow = {
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95.215.185.34/32, # nagios2 ipv4
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}
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2024-11-18 10:48:16 +01:00
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########### here starts the automated bit #####################
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table inet filter {
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chain input {
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type filter hook input priority 0;
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policy drop;
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# established/related connections
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ct state established,related accept
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ct state invalid drop
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# Limit ping requests.
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ip protocol icmp icmp type echo-request limit rate over 10/second burst 50 packets drop
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ip6 nexthdr icmpv6 icmpv6 type echo-request limit rate over 10/second burst 50 packets drop
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# loopback interface
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iifname lo accept
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# icmp
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ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, source-quench, time-exceeded } accept
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# Without the nd-* ones ipv6 will not work.
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ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-solicit, nd-router-advert, nd-neighbor-advert, packet-too-big, parameter-problem, time-exceeded } accept
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2024-11-18 10:48:16 +01:00
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# open tcp ports: sshd (22)
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#ip saddr $ssh_allow tcp dport {ssh} accept
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tcp dport {ssh} accept
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2024-11-18 10:48:16 +01:00
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# open tcp ports: snmp (161)
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ip saddr $snmp_allow udp dport {snmp} accept
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2024-11-18 10:48:16 +01:00
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# open tcp ports: nrpe (5666)
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ip saddr $nrpe_allow tcp dport {nrpe} accept
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2024-11-18 10:48:16 +01:00
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# open tcp ports: http (80,443)
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tcp dport {http,https} accept
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}
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chain forward {
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type filter hook forward priority 0;
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}
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chain output {
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type filter hook output priority 0;
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}
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}
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table ip nat {
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chain postrouting {
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}
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chain prerouting {
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}
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}
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'';
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};
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};
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# Set your time zone.
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time.timeZone = "Europe/Amsterdam";
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# Configure network proxy if necessary
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# networking.proxy.default = "http://user:password@proxy:port/";
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# networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
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# Select internationalisation properties.
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i18n.defaultLocale = "en_US.UTF-8";
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# console = {
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# font = "Lat2-Terminus16";
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# keyMap = "us";
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# useXkbConfig = true; # use xkb.options in tty.
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# };
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# Enable the X11 windowing system.
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# services.xserver.enable = true;
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# Configure keymap in X11
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# services.xserver.xkb.layout = "us";
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# services.xserver.xkb.options = "eurosign:e,caps:escape";
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# Enable CUPS to print documents.
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# services.printing.enable = true;
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# Enable sound.
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# sound.enable = true;
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# hardware.pulseaudio.enable = true;
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# Enable touchpad support (enabled default in most desktopManager).
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# services.xserver.libinput.enable = true;
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# Define a user account. Don't forget to set a password with ‘passwd’.
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users.users = {
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procolix = {
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isNormalUser = true;
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extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
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openssh.authorizedKeys.keys = [
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"ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAotfCIjLoDlHOe+++kVS1xiBPaS8mC5FypgrxDrDVst6SHxMTca2+IScMajzUZajenvNAoZOwIsyAPacT8OHeyFvV5Y7G874Qa+cZVqJxLht9gdXxr1GNabU3RfhhCh272dUeIKIqfgsRsM2HzdnZCMDavS1Yo+f+RhhHhnJIua+NdVFo21vPrpsz+Cd0M1NhojARLajrTHvEXW0KskUnkbfgxT0vL9jeRZxdgMS+a9ZoR5dbzOxQHWfbP8N04Xc+7CweMlvKwlWuAE/xDb5XLNHorfGWFvZuVhptJN8jPaaVS25wsmsF5IbaAuSZfzCtBdFQhIloUhy0L6ZisubHjQ== procolix@sshnode1"
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"ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAuT3C0f3nyQ7SwUvXcFmEYEgwL+crY6iK0Bhoi9yfn4soz3fhfMKyKSwc/0RIlRnrz3xnkyJiV0vFeU7AC1ixbGCS3T9uc0G1x0Yedd9n2yR8ZJmkdyfjZ5KE4YvqZ3f6UZn5Mtj+7tGmyp+ee+clLSHzsqeyDiX0FIgFmqiiAVJD6qeKPFAHeWz9b2MOXIBIw+fSLOpx0rosCgesOmPc8lgFvo+dMKpSlPkCuGLBPj2ObT4sLjc98NC5z8sNJMu3o5bMbiCDR9JWgx9nKj+NlALwk3Y/nzHSL/DNcnP5vz2zbX2CBKjx6ju0IXh6YKlJJVyMsH9QjwYkgDQVmy8amQ== procolix@sshnode2"
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];
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};
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};
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# List packages installed in system profile. To search, run:
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# $ nix search wget
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environment.systemPackages = with pkgs; [
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(pkgs.vim_configurable.customize {
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name = "vim";
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vimrcConfig.packages.myplugins = with pkgs.vimPlugins; {
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start = [ vim-nix ]; # load plugin on startup
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};
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vimrcConfig.customRC = ''
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" your custom vimrc
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set nocompatible
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set backspace=indent,eol,start
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" Turn on syntax highlighting by default
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syntax on
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" ...
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'';
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})
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2024-11-18 12:11:32 +01:00
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wget
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subversion
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];
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# Some programs need SUID wrappers, can be configured further or are
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# started in user sessions.
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# programs.mtr.enable = true;
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# programs.gnupg.agent = {
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# enable = true;
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# enableSSHSupport = true;
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# };
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# List services that you want to enable:
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services = {
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openssh = {
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enable = true;
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};
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xe-guest-utilities = {
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enable = true;
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};
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};
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# Open ports in the firewall.
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# networking.firewall.allowedTCPPorts = [ ... ];
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# networking.firewall.allowedUDPPorts = [ ... ];
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# Or disable the firewall altogether.
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# networking.firewall.enable = false;
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# Copy the NixOS configuration file and link it from the resulting system
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# (/run/current-system/configuration.nix). This is useful in case you
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# accidentally delete configuration.nix.
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system.copySystemConfiguration = true;
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# This option defines the first version of NixOS you have installed on this particular machine,
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# and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
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#
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# Most users should NEVER change this value after the initial install, for any reason,
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# even if you've upgraded your system to a new NixOS release.
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#
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# This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
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# so changing it will NOT upgrade your system.
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#
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# This value being lower than the current NixOS release does NOT mean your system is
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# out of date, out of support, or vulnerable.
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#
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# Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
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# and migrated your data accordingly.
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#
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# For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
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system.stateVersion = "24.05";
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}
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