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|
{
pkgs,
host,
lib,
username,
...
}:
{
imports = [
./hardware-configuration.nix
];
boot.tmp.cleanOnBoot = true;
boot.loader.grub.configurationLimit = 2;
zramSwap.enable = true;
networking = {
hostName = host;
domain = "schererleander.de";
};
users.users.root.hashedPassword = "!";
users.mutableUsers = false;
users.users.${username} = {
isNormalUser = true;
hashedPassword = "$6$KBblJguEyfEmuWnU$Xf0QqPVacA2qvnzZRpnSE2cmh0kNnMgtVhCrMEDI76buNzuzkuDY6EnO7jPjQlEnoczx6ZPAl2pK.SxezbVa..";
extraGroups = [ "wheel" ];
openssh.authorizedKeys.keys = [
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPvlkqlvY4+0o7UIGnFnnRw0HeBq5v7wYJ3kY3teXxxl vps"
"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINL+r0l2i07pl9V9iiGqw5e2f/QAcrMhuraA25HavdNT github-deploy"
];
};
environment.systemPackages = with pkgs; [
git
gnutar
gzip
zoxide
neovim
htop
lynis
];
system.autoUpgrade = {
enable = true;
flake = "github:schererleander/nix#${host}";
allowReboot = true;
rebootWindow = {
lower = "02:00";
upper = "05:00";
};
};
services.fail2ban = {
enable = true;
bantime = "1h";
jails = {
sshd = {
enabled = true;
settings = {
port = 8693;
backend = "systemd";
maxretry = 4;
findtime = "10m";
bantime = "1h";
};
};
nextcloud = {
enabled = true;
settings = {
# START modification to work with syslog instead of logile
backend = "systemd";
journalmatch = "SYSLOG_IDENTIFIER=Nextcloud";
# END modification to work with syslog instead of logile
port = 443;
protocol = "tcp";
filter = "nextcloud";
maxretry = 3;
bantime = 86400;
findtime = 43200;
};
};
};
};
environment.etc = {
# Adapted failregex for syslogs
"fail2ban/filter.d/nextcloud.local".text = pkgs.lib.mkDefault (
pkgs.lib.mkAfter ''
[Definition]
failregex = ^.*"remoteAddr":"<HOST>".*"message":"Login failed: (?P<failure-id>.*)",.*
^.*"remoteAddr":"<HOST>".*"message":"Two-factor challenge failed: (?P<failure-id>.*)",.*
^.*"remoteAddr":"<HOST>".*"message":"Trusted domain error\.(?P<failure-id>.*)",.*
''
);
};
services.openssh = {
enable = true;
ports = [ 8693 ];
settings = {
PasswordAuthentication = false;
AllowUsers = [ username ];
X11Forwarding = false;
PermitRootLogin = "no";
};
};
security.acme = {
acceptTerms = true;
defaults.email = "leander@schererleander.de";
};
services.nginx = {
enable = true;
recommendedGzipSettings = true;
recommendedOptimisation = true;
recommendedProxySettings = true;
recommendedTlsSettings = true;
appendHttpConfig = ''
map $scheme $hsts_header {
https "max-age=31536000; includeSubdomains; preload";
}
add_header Strict-Transport-Security $hsts_header;
#add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' data:; font-src 'self'; connect-src 'self'; object-src 'none'; frame-ancestors 'none'; base-uri 'self';" always;
add_header 'Referrer-Policy' 'same-origin';
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
'';
virtualHosts."cloud.schererleander.de" = {
forceSSL = true;
sslCertificate = "/etc/ssl/schererleander.de/fullchain.pem";
sslCertificateKey = "/etc/ssl/schererleander.de/privkey.key";
};
};
services.site = {
enable = true;
domain = "schererleander.de";
sslCertificate = "/etc/ssl/schererleander.de/fullchain.pem";
sslCertificateKey = "/etc/ssl/schererleander.de/privkey.key";
};
services.nextcloud = {
enable = true;
package = pkgs.nextcloud31;
hostName = "cloud.schererleander.de";
https = true;
database.createLocally = true;
maxUploadSize = "16G";
config = {
dbtype = "mysql";
adminuser = "schererleander";
adminpassFile = "/etc/nextcloud-admin-pass";
};
settings = {
maintenance_window_start = 2; # 02:00
default_phone_region = "de";
overwriteProtocol = "https";
trusted_domains = [ "cloud.schererleander.de" ];
logtimezone = "Europe/Berlin";
};
};
security.auditd.enable = true;
security.audit = {
enable = true;
rules = [ "-a exit,always -F arch=b64 -S execve" ];
};
networking.firewall = {
allowPing = false;
allowedTCPPorts = [
80
443
8693
];
};
nix.settings.experimental-features = [
"nix-command"
"flakes"
];
nixpkgs.config.allowUnfree = true;
system.stateVersion = "25.05";
}
|
