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|
{ config, lib, pkgs, ... }:
with config.krebs.lib;
{
imports = [
../2configs/vim.nix
../2configs/zsh.nix
../2configs/mc.nix
../2configs/retiolum.nix
./backups.nix
{
users.extraUsers =
mapAttrs (_: h: { hashedPassword = h; })
(import <secrets/hashedPasswords.nix>);
}
{
users.extraUsers = {
root = {
openssh.authorizedKeys.keys = [
config.krebs.users.lass.pubkey
config.krebs.users.lass-uriel.pubkey
];
};
mainUser = {
name = "lass";
uid = 1337;
home = "/home/lass";
group = "users";
createHome = true;
useDefaultShell = true;
extraGroups = [
];
openssh.authorizedKeys.keys = [
config.krebs.users.lass.pubkey
config.krebs.users.lass-uriel.pubkey
];
};
};
}
];
networking.hostName = config.krebs.build.host.name;
nix.maxJobs = config.krebs.build.host.cores;
krebs = {
enable = true;
search-domain = "retiolum";
exim-retiolum.enable = true;
build = {
user = config.krebs.users.lass;
source = mapAttrs (_: mkDefault) ({
nixos-config = "symlink:stockholm/lass/1systems/${config.krebs.build.host.name}.nix";
secrets = "/home/lass/secrets/${config.krebs.build.host.name}";
#secrets-common = "/home/lass/secrets/common";
stockholm = "/home/lass/stockholm";
nixpkgs = {
url = https://github.com/NixOS/nixpkgs;
rev = "e781a8257b4312f6b138c7d0511c77d8c06ed819";
dev = "/home/lass/src/nixpkgs";
};
} // optionalAttrs config.krebs.build.host.secure {
#secrets-master = "/home/lass/secrets/master";
});
};
};
nix.useChroot = true;
users.mutableUsers = false;
services.timesyncd.enable = true;
#why is this on in the first place?
services.nscd.enable = false;
boot.tmpOnTmpfs = true;
# see tmpfiles.d(5)
systemd.tmpfiles.rules = [
"d /tmp 1777 root root - -"
];
# multiple-definition-problem when defining environment.variables.EDITOR
environment.extraInit = ''
EDITOR=vim
MANPAGER=most
'';
nixpkgs.config.allowUnfree = true;
environment.systemPackages = with pkgs; [
#stockholm
git
gnumake
jq
parallel
proot
#style
most
rxvt_unicode.terminfo
#monitoring tools
htop
iotop
#network
iptables
#stuff for dl
aria2
#neat utils
krebspaste
#unpack stuff
p7zip
unzip
unrar
];
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
#fancy colors
if [ -e ~/LS_COLORS ]; then
eval $(dircolors ~/LS_COLORS)
fi
if [ -e /etc/nixos/dotfiles/link ]; then
/etc/nixos/dotfiles/link
fi
'';
promptInit = ''
if test $UID = 0; then
PS1='\[\033[1;31m\]\w\[\033[0m\] '
elif test $UID = 1337; then
PS1='\[\033[1;32m\]\w\[\033[0m\] '
else
PS1='\[\033[1;33m\]\u@\w\[\033[0m\] '
fi
if test -n "$SSH_CLIENT"; then
PS1='\[\033[35m\]\h'" $PS1"
fi
'';
};
security.setuidPrograms = [
"sendmail"
];
services.openssh = {
enable = true;
hostKeys = [
# XXX bits here make no science
{ bits = 8192; type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
];
};
services.journald.extraConfig = ''
SystemMaxUse=1G
RuntimeMaxUse=128M
'';
krebs.iptables = {
enable = true;
tables = {
nat.PREROUTING.rules = [
{ predicate = "! -i retiolum -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; }
];
filter.INPUT.policy = "DROP";
filter.FORWARD.policy = "DROP";
filter.INPUT.rules = [
{ predicate = "-m conntrack --ctstate RELATED,ESTABLISHED"; target = "ACCEPT"; precedence = 10001; }
{ predicate = "-p icmp"; target = "ACCEPT"; precedence = 10000; }
{ predicate = "-i lo"; target = "ACCEPT"; precedence = 9999; }
{ predicate = "-p tcp --dport 22"; target = "ACCEPT"; precedence = 9998; }
{ predicate = "-i retiolum"; target = "REJECT"; precedence = -10000; }
];
};
};
networking.dhcpcd.extraConfig = ''
noipv4ll
'';
#CVE-2016-0777 and CVE-2016-0778 workaround
#https://www.qualys.com/2016/01/14/cve-2016-0777-cve-2016-0778/openssh-cve-2016-0777-cve-2016-0778.txt
programs.ssh.extraConfig = ''
UseRoaming no
'';
}
|
