stockholm/lass/2configs/default.nix

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with import <stockholm/lib>;
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{ config, pkgs, ... }:
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{
imports = [
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./binary-cache/client.nix
./gc.nix
./mc.nix
./vim.nix
./zsh.nix
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./htop.nix
<stockholm/krebs/2configs/security-workarounds.nix>
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./wiregrill.nix
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{
users.extraUsers =
mapAttrs (_: h: { hashedPassword = h; })
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(import <secrets/hashedPasswords.nix>);
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}
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{
users.extraUsers = {
root = {
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openssh.authorizedKeys.keys = [
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config.krebs.users.lass.pubkey
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config.krebs.users.lass-blue.pubkey
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config.krebs.users.lass-green.pubkey
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];
};
mainUser = {
name = "lass";
uid = 1337;
home = "/home/lass";
group = "users";
createHome = true;
useDefaultShell = true;
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isNormalUser = true;
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extraGroups = [
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"audio"
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"video"
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"fuse"
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"wheel"
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];
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openssh.authorizedKeys.keys = [
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config.krebs.users.lass.pubkey
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config.krebs.users.lass-blue.pubkey
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config.krebs.users.lass-green.pubkey
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];
};
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};
}
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{
environment.variables = {
NIX_PATH = mkForce "secrets=/var/src/stockholm/null:/var/src";
};
}
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(let ca-bundle = "/etc/ssl/certs/ca-bundle.crt"; in {
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environment.variables = {
CURL_CA_BUNDLE = ca-bundle;
GIT_SSL_CAINFO = ca-bundle;
SSL_CERT_FILE = ca-bundle;
};
})
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{
#for sshuttle
environment.systemPackages = [
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pkgs.python3Packages.python
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];
}
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];
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networking.hostName = config.krebs.build.host.name;
nix.maxJobs = config.krebs.build.host.cores;
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krebs = {
enable = true;
build.user = config.krebs.users.lass;
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};
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nix.useSandbox = true;
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users.mutableUsers = false;
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services.timesyncd.enable = mkForce true;
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# multiple-definition-problem when defining environment.variables.EDITOR
environment.extraInit = ''
EDITOR=vim
'';
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nixpkgs.config.allowUnfree = true;
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environment.systemPackages = with pkgs; [
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#stockholm
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deploy
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git
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git-preview
gnumake
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jq
#style
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rxvt_unicode.terminfo
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#monitoring tools
htop
iotop
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#network
iptables
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iftop
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tcpdump
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mosh
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sshify
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#stuff for dl
aria2
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#neat utils
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file
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hashPassword
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kpaste
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cyberlocker-tools
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pciutils
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pop
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q
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rs
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untilport
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usbutils
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logify
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goify
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#unpack stuff
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libarchive
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(pkgs.writeDashBin "sshn" ''
${pkgs.openssh}/bin/ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no "$@"
'')
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];
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environment.shellAliases = {
ll = "ls -l";
la = "ls -la";
ls = "ls --color";
ip = "ip -color=auto";
grep = "grep --color=auto";
};
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programs.bash = {
enableCompletion = true;
interactiveShellInit = ''
HISTCONTROL='erasedups:ignorespace'
HISTSIZE=65536
HISTFILESIZE=$HISTSIZE
shopt -s checkhash
shopt -s histappend histreedit histverify
shopt -s no_empty_cmd_completion
complete -d cd
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LS_COLORS=$LS_COLORS:'di=1;31:' ; export LS_COLORS
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'';
promptInit = ''
if test $UID = 0; then
PS1='\[\033[1;31m\]\w\[\033[0m\] '
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PROMPT_COMMAND='echo -ne "\033]0;$$ $USER@$PWD\007"'
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elif test $UID = 1337; then
PS1='\[\033[1;32m\]\w\[\033[0m\] '
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PROMPT_COMMAND='echo -ne "\033]0;$$ $PWD\007"'
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else
PS1='\[\033[1;33m\]\u@\w\[\033[0m\] '
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PROMPT_COMMAND='echo -ne "\033]0;$$ $USER@$PWD\007"'
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fi
if test -n "$SSH_CLIENT"; then
PS1='\[\033[35m\]\h'" $PS1"
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PROMPT_COMMAND='echo -ne "\033]0;$$ $HOSTNAME $USER@$PWD\007"'
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fi
'';
};
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services.openssh.enable = true;
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services.journald.extraConfig = ''
SystemMaxUse=1G
RuntimeMaxUse=128M
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Storage=persistent
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'';
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krebs.iptables = {
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enable = true;
tables = {
nat.PREROUTING.rules = [
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{ predicate = "-i retiolum -p tcp -m tcp --dport 22"; target = "ACCEPT"; precedence = 101; }
{ predicate = "-i wiregrill -p tcp -m tcp --dport 22"; target = "ACCEPT"; precedence = 101; }
{ predicate = "-p tcp -m tcp --dport 22"; target = "REDIRECT --to-ports 0"; precedence = 100; }
{ predicate = "-p tcp -m tcp --dport 45621"; target = "REDIRECT --to-ports 22"; precedence = 99; }
];
nat.OUTPUT.rules = [
{ predicate = "-o lo -p tcp -m tcp --dport 45621"; target = "REDIRECT --to-ports 22"; precedence = 100; }
];
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filter.INPUT.policy = "DROP";
filter.FORWARD.policy = "DROP";
filter.INPUT.rules = [
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{ predicate = "-i retiolum -p udp --dport 60000:61000"; target = "ACCEPT";}
{ predicate = "-m conntrack --ctstate RELATED,ESTABLISHED"; target = "ACCEPT"; precedence = 10001; }
{ predicate = "-p icmp"; target = "ACCEPT"; precedence = 10000; }
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{ predicate = "-p ipv6-icmp"; target = "ACCEPT"; v4 = false; precedence = 10000; }
{ predicate = "-i lo"; target = "ACCEPT"; precedence = 9999; }
{ predicate = "-p tcp --dport 22"; target = "ACCEPT"; precedence = 9998; }
{ predicate = "-p tcp -i retiolum"; target = "REJECT --reject-with tcp-reset"; precedence = -10000; }
{ predicate = "-p udp -i retiolum"; target = "REJECT --reject-with icmp-port-unreachable"; v6 = false; precedence = -10000; }
{ predicate = "-i retiolum"; target = "REJECT --reject-with icmp-proto-unreachable"; v6 = false; precedence = -10000; }
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{ predicate = "-i retiolum -p udp -m udp --dport 53"; target = "ACCEPT"; }
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{ predicate = "-i retiolum -p tcp --dport 19999"; target = "ACCEPT"; }
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];
};
};
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networking.dhcpcd.extraConfig = ''
noipv4ll
'';
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# use 24:00 time format, the default got sneakily changed around 20.03
i18n.defaultLocale = mkDefault "C.UTF-8";
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time.timeZone = mkDefault"Europe/Berlin";
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system.stateVersion = mkDefault "20.03";
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}