forked from M-Labs/it-infra
223 lines
8.3 KiB
Nix
223 lines
8.3 KiB
Nix
{ config, pkgs, ... }:
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let
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netifWan = "enp0s25";
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netifLan = "enp3s0";
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netifWifi = "wlp1s0";
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netifSit = "henet0";
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in
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{
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imports =
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[
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./hardware-configuration.nix
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./backupdl-module.nix
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];
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boot.loader.grub.enable = true;
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boot.loader.grub.version = 2;
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boot.loader.grub.device = "/dev/sda";
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boot.blacklistedKernelModules = [ "r8169" ];
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boot.extraModulePackages = [ (pkgs.callPackage ./r8169 { kernel = config.boot.kernelPackages.kernel; }) ];
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networking.hostName = "aux";
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networking.interfaces."${netifWan}".useDHCP = true;
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services.hostapd = {
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enable = true;
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interface = netifWifi;
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hwMode = "g";
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ssid = "M-Labs";
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wpaPassphrase = (import /etc/nixos/secret/wifi_password.nix);
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extraConfig = ''
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ieee80211d=1
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country_code=HK
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ieee80211n=1
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wmm_enabled=1
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auth_algs=1
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wpa_key_mgmt=WPA-PSK
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rsn_pairwise=CCMP
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'';
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};
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networking.interfaces."${netifLan}" = {
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ipv4.addresses = [{
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address = "192.168.1.1";
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prefixLength = 24;
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}];
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ipv6.addresses = [{
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address = "2001:470:f891:1::";
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prefixLength = 64;
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}];
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};
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networking.interfaces."${netifWifi}" = {
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ipv4.addresses = [{
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address = "192.168.15.1";
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prefixLength = 24;
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}];
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ipv6.addresses = [{
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address = "2001:470:f891:2::";
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prefixLength = 64;
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}];
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};
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networking.sits."${netifSit}" = {
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dev = netifWan;
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remote = "216.218.221.6";
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local = "94.190.212.123";
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ttl = 255;
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};
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networking.interfaces."${netifSit}".ipv6 = {
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addresses = [{ address = "2001:470:18:390::2"; prefixLength = 64; }];
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routes = [{ address = "::"; prefixLength = 0; }];
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};
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boot.kernel.sysctl."net.ipv6.conf.all.forwarding" = "1";
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boot.kernel.sysctl."net.ipv6.conf.default.forwarding" = "1";
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boot.kernel.sysctl."net.ipv6.conf.${netifLan}.accept_dad" = "0";
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boot.kernel.sysctl."net.ipv6.conf.${netifWifi}.accept_dad" = "0";
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networking.firewall = {
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allowedTCPPorts = [ 53 ];
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allowedUDPPorts = [ 53 67 ];
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trustedInterfaces = [ netifLan ];
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};
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services.bind = {
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enable = true;
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listenOn = [];
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listenOnIpv6 = [];
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forwarders = [];
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extraOptions = "listen-on-v6 port 5354 { ::1; };";
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cacheNetworks = [ "::1/128" ];
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};
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services.dnsmasq = {
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enable = true;
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servers = ["::1#5354"];
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extraConfig = ''
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interface=${netifWifi}
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interface=${netifLan}
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bind-interfaces
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dhcp-range=interface:${netifLan},192.168.1.81,192.168.1.254,24h
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dhcp-range=interface:${netifWifi},192.168.15.10,192.168.15.254,24h
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enable-ra
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dhcp-range=interface:${netifLan},::,constructor:${netifLan},ra-names
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dhcp-range=interface:${netifWifi},::,constructor:${netifWifi},ra-only
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no-resolv
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# Static IPv4s to make port redirections work
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dhcp-host=chiron,192.168.1.201
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dhcp-host=old-nixbld,192.168.1.202
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# Google can't do DNS geolocation correctly and slows down websites of everyone using
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# their shitty font cloud hosting. In HK, you sometimes get IPs behind the GFW that you
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# cannot reach.
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address=/fonts.googleapis.com/142.250.207.74
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'';
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};
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networking.nat = {
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enable = true;
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externalInterface = netifWan;
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internalInterfaces = [ netifLan netifWifi ];
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forwardPorts = [
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{ sourcePort = 2201; destination = "192.168.1.201:22"; proto = "tcp"; }
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{ sourcePort = 2202; destination = "192.168.1.202:22"; proto = "tcp"; }
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];
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extraCommands = ''
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iptables -w -N block-lan-from-wifi
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iptables -w -A block-lan-from-wifi -i ${netifLan} -o ${netifWifi} -j DROP
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iptables -w -A block-lan-from-wifi -i ${netifWifi} -o ${netifLan} -j DROP
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iptables -w -A FORWARD -j block-lan-from-wifi
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iptables -w -N block-insecure-devices
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iptables -w -A block-insecure-devices -m mac --mac-source 00:20:0c:6c:ee:ba -j DROP # keysight SA
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iptables -w -A block-insecure-devices -m mac --mac-source 74:5b:c5:20:c1:5f -j DROP # siglent scope
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iptables -w -A block-insecure-devices -m mac --mac-source 00:0a:35:00:01:23 -j DROP # function generator
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iptables -w -A block-insecure-devices -m mac --mac-source 74:5b:c5:21:f1:ee -j DROP # siglent scope #2
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iptables -w -A block-insecure-devices -m mac --mac-source 00:19:af:5b:dd:58 -j DROP # power supply
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iptables -w -A FORWARD -j block-insecure-devices
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'';
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extraStopCommands = ''
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iptables -w -D FORWARD -j block-lan-from-wifi 2>/dev/null|| true
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iptables -w -F block-lan-from-wifi 2>/dev/null|| true
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iptables -w -X block-lan-from-wifi 2>/dev/null|| true
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iptables -w -D FORWARD -j block-insecure-devices 2>/dev/null|| true
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iptables -w -F block-insecure-devices 2>/dev/null|| true
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iptables -w -X block-insecure-devices 2>/dev/null|| true
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'';
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};
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time.timeZone = "Asia/Hong_Kong";
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nixpkgs.config.allowUnfree = true;
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services.avahi.enable = true;
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services.avahi.publish.enable = true;
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services.avahi.publish.userServices = true;
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services.printing.enable = true;
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services.printing.drivers = [ pkgs.hplipWithPlugin ];
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services.printing.browsing = true;
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services.printing.listenAddresses = [ "*:631" ];
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services.printing.defaultShared = true;
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hardware.sane.enable = true;
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hardware.sane.extraBackends = [ pkgs.hplipWithPlugin ];
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systemd.sockets.cups.wants = [ "network-setup.service" ];
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systemd.sockets.cups.after = [ "network-setup.service" ];
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systemd.sockets.cups.wantedBy = [ "multi-user.target" ];
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systemd.services.cups.wantedBy = [ "multi-user.target" ];
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users.extraUsers.root = {
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openssh.authorizedKeys.keys = [
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyPk5WyFoWSvF4ozehxcVBoZ+UHgrI7VW/OoQfFFwIQe0qvetUZBMZwR2FwkLPAMZV8zz1v4EfncudEkVghy4P+/YVLlDjqDq9zwZnh8Nd/ifu84wmcNWHT2UcqnhjniCdshL8a44memzABnxfLLv+sXhP2x32cJAamo5y6fukr2qLp2jbXzR+3sv3klE0ruUXis/BR1lLqNJEYP8jB6fLn2sLKinnZPfn6DwVOk10mGeQsdME/eGl3phpjhODH9JW5V2V5nJBbC0rBnq+78dyArKVqjPSmIcSy72DEIpTctnMEN1W34BGrnsDd5Xd/DKxKxHKTMCHtZRwLC2X0NWN"
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCMALVC8RDTHec+PC8y1s3tcpUAODgq6DEzQdHDf/cyvDMfmCaPiMxfIdmkns5lMa03hymIfSmLUF0jFFDc7biRp7uf9AAXNsrTmplHii0l0McuOOZGlSdZM4eL817P7UwJqFMxJyFXDjkubhQiX6kp25Kfuj/zLnupRCaiDvE7ho/xay6Jrv0XLz935TPDwkc7W1asLIvsZLheB+sRz9SMOb9gtrvk5WXZl5JTOFOLu+JaRwQLHL/xdcHJTOod7tqHYfpoC5JHrEwKzbhTOwxZBQBfTQjQktKENQtBxXHTe71rUEWfEZQGg60/BC4BrRmh4qJjlJu3v4VIhC7SSHn1"
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];
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shell = pkgs.fish;
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};
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# https://github.com/NixOS/nixpkgs/issues/155357
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security.sudo.enable = true;
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users.users.sb = {
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isNormalUser = true;
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extraGroups = ["lp" "scanner"];
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openssh.authorizedKeys.keys = [
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyPk5WyFoWSvF4ozehxcVBoZ+UHgrI7VW/OoQfFFwIQe0qvetUZBMZwR2FwkLPAMZV8zz1v4EfncudEkVghy4P+/YVLlDjqDq9zwZnh8Nd/ifu84wmcNWHT2UcqnhjniCdshL8a44memzABnxfLLv+sXhP2x32cJAamo5y6fukr2qLp2jbXzR+3sv3klE0ruUXis/BR1lLqNJEYP8jB6fLn2sLKinnZPfn6DwVOk10mGeQsdME/eGl3phpjhODH9JW5V2V5nJBbC0rBnq+78dyArKVqjPSmIcSy72DEIpTctnMEN1W34BGrnsDd5Xd/DKxKxHKTMCHtZRwLC2X0NWN"
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"ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCMALVC8RDTHec+PC8y1s3tcpUAODgq6DEzQdHDf/cyvDMfmCaPiMxfIdmkns5lMa03hymIfSmLUF0jFFDc7biRp7uf9AAXNsrTmplHii0l0McuOOZGlSdZM4eL817P7UwJqFMxJyFXDjkubhQiX6kp25Kfuj/zLnupRCaiDvE7ho/xay6Jrv0XLz935TPDwkc7W1asLIvsZLheB+sRz9SMOb9gtrvk5WXZl5JTOFOLu+JaRwQLHL/xdcHJTOod7tqHYfpoC5JHrEwKzbhTOwxZBQBfTQjQktKENQtBxXHTe71rUEWfEZQGg60/BC4BrRmh4qJjlJu3v4VIhC7SSHn1"
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];
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shell = pkgs.fish;
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};
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documentation.enable = false;
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environment.systemPackages = with pkgs; [
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wget vim git usbutils pciutils file lm_sensors acpi
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psmisc
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iw
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tmux
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bind
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nixopsUnstable
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imagemagick
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];
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programs.mosh.enable = true;
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programs.fish.enable = true;
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services.openssh.enable = true;
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services.openssh.forwardX11 = true;
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services.openssh.passwordAuthentication = false;
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services.openssh.extraConfig =
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''
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StreamLocalBindUnlink yes
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'';
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services.backupdl.enable = true;
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services.udev.extraRules =
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''
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# label printer
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SUBSYSTEM=="usb", ATTRS{idVendor}=="07cf", ATTRS{idProduct}=="4204", MODE="0660", GROUP="plugdev"
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'';
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nix.settings.trusted-public-keys = ["nixbld.m-labs.hk-1:5aSRVA5b320xbNvu30tqxVPXpld73bhtOeH6uAjRyHc="];
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nix.settings.substituters = ["https://nixbld.m-labs.hk" "https://cache.nixos.org"];
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nix.settings.trusted-users = ["sb"];
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system.stateVersion = "22.05";
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}
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