forked from Drift/pvv-nixos-config
bekkalokk: set up kerberos client
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@ -42,6 +42,7 @@
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];
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in {
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nixosConfigurations = let
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unstablePkgs = nixpkgs-unstable.legacyPackages.x86_64-linux;
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nixosConfig = nixpkgs: name: config: nixpkgs.lib.nixosSystem (nixpkgs.lib.recursiveUpdate
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rec {
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system = "x86_64-linux";
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@ -75,7 +76,13 @@
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inputs.pvv-calendar-bot.overlays.x86_64-linux.default
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];
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};
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bekkalokk = stableNixosConfig "bekkalokk" { };
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bekkalokk = stableNixosConfig "bekkalokk" {
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overlays = [
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(final: prev: {
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heimdal = unstablePkgs.heimdal;
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})
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];
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};
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bob = stableNixosConfig "bob" {
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modules = [
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disko.nixosModules.disko
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@ -12,6 +12,7 @@
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# ./services/website.nix
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./services/nginx
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./services/gitea/default.nix
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./services/kerberos
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./services/webmail
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# ./services/mediawiki.nix
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];
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@ -0,0 +1,27 @@
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{ config, pkgs, lib, ... }:
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{
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#######################
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# TODO: remove these once nixos 24.05 gets released
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#######################
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imports = [
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./krb5.nix
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./pam.nix
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];
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disabledModules = [
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"config/krb5/default.nix"
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"security/pam.nix"
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];
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#######################
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security.krb5 = {
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enable = true;
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settings = {
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libdefaults = {
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default_realm = "PVV.NTNU.NO";
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dns_lookup_realm = "yes";
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dns_lookup_kdc = "yes";
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};
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realms."PVV.NTNU.NO".admin_server = "kdc.pvv.ntnu.no";
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};
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};
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}
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@ -0,0 +1,88 @@
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{ pkgs, lib, ... }:
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# Based on
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# - https://web.mit.edu/kerberos/krb5-1.12/doc/admin/conf_files/krb5_conf.html
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# - https://manpages.debian.org/unstable/heimdal-docs/krb5.conf.5heimdal.en.html
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let
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inherit (lib) boolToString concatMapStringsSep concatStringsSep filter
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isAttrs isBool isList mapAttrsToList mdDoc mkOption singleton splitString;
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inherit (lib.types) attrsOf bool coercedTo either int listOf oneOf path
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str submodule;
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in
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{ }: {
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type = let
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section = attrsOf relation;
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relation = either (attrsOf value) value;
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value = either (listOf atom) atom;
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atom = oneOf [int str bool];
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in submodule {
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freeformType = attrsOf section;
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options = {
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include = mkOption {
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default = [ ];
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description = mdDoc ''
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Files to include in the Kerberos configuration.
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'';
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type = coercedTo path singleton (listOf path);
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};
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includedir = mkOption {
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default = [ ];
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description = mdDoc ''
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Directories containing files to include in the Kerberos configuration.
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'';
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type = coercedTo path singleton (listOf path);
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};
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module = mkOption {
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default = [ ];
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description = mdDoc ''
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Modules to obtain Kerberos configuration from.
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'';
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type = coercedTo path singleton (listOf path);
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};
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};
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};
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generate = let
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indent = str: concatMapStringsSep "\n" (line: " " + line) (splitString "\n" str);
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formatToplevel = args @ {
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include ? [ ],
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includedir ? [ ],
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module ? [ ],
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...
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}: let
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sections = removeAttrs args [ "include" "includedir" "module" ];
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in concatStringsSep "\n" (filter (x: x != "") [
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(concatStringsSep "\n" (mapAttrsToList formatSection sections))
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(concatMapStringsSep "\n" (m: "module ${m}") module)
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(concatMapStringsSep "\n" (i: "include ${i}") include)
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(concatMapStringsSep "\n" (i: "includedir ${i}") includedir)
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]);
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formatSection = name: section: ''
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[${name}]
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${indent (concatStringsSep "\n" (mapAttrsToList formatRelation section))}
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'';
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formatRelation = name: relation:
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if isAttrs relation
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then ''
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${name} = {
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${indent (concatStringsSep "\n" (mapAttrsToList formatValue relation))}
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}''
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else formatValue name relation;
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formatValue = name: value:
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if isList value
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then concatMapStringsSep "\n" (formatAtom name) value
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else formatAtom name value;
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formatAtom = name: atom: let
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v = if isBool atom then boolToString atom else toString atom;
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in "${name} = ${v}";
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in
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name: value: pkgs.writeText name ''
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${formatToplevel value}
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'';
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}
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@ -0,0 +1,90 @@
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{ config, lib, pkgs, ... }:
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let
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inherit (lib) mdDoc mkIf mkOption mkPackageOption mkRemovedOptionModule;
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inherit (lib.types) bool;
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mkRemovedOptionModule' = name: reason: mkRemovedOptionModule ["krb5" name] reason;
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mkRemovedOptionModuleCfg = name: mkRemovedOptionModule' name ''
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The option `krb5.${name}' has been removed. Use
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`security.krb5.settings.${name}' for structured configuration.
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'';
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cfg = config.security.krb5;
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format = import ./krb5-conf-format.nix { inherit pkgs lib; } { };
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in {
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imports = [
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(mkRemovedOptionModuleCfg "libdefaults")
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(mkRemovedOptionModuleCfg "realms")
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(mkRemovedOptionModuleCfg "domain_realm")
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(mkRemovedOptionModuleCfg "capaths")
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(mkRemovedOptionModuleCfg "appdefaults")
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(mkRemovedOptionModuleCfg "plugins")
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(mkRemovedOptionModuleCfg "config")
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(mkRemovedOptionModuleCfg "extraConfig")
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(mkRemovedOptionModule' "kerberos" ''
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The option `krb5.kerberos' has been moved to `security.krb5.package'.
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'')
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];
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options = {
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security.krb5 = {
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enable = mkOption {
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default = false;
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description = mdDoc "Enable and configure Kerberos utilities";
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type = bool;
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};
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package = mkPackageOption pkgs "krb5" {
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example = "heimdal";
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};
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settings = mkOption {
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default = { };
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type = format.type;
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description = mdDoc ''
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Structured contents of the {file}`krb5.conf` file. See
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{manpage}`krb5.conf(5)` for details about configuration.
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'';
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example = {
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include = [ "/run/secrets/secret-krb5.conf" ];
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includedir = [ "/run/secrets/secret-krb5.conf.d" ];
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libdefaults = {
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default_realm = "ATHENA.MIT.EDU";
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};
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realms = {
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"ATHENA.MIT.EDU" = {
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admin_server = "athena.mit.edu";
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kdc = [
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"athena01.mit.edu"
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"athena02.mit.edu"
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];
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};
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};
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domain_realm = {
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"mit.edu" = "ATHENA.MIT.EDU";
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};
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logging = {
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kdc = "SYSLOG:NOTICE";
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admin_server = "SYSLOG:NOTICE";
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default = "SYSLOG:NOTICE";
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};
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};
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};
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};
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};
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config = mkIf cfg.enable {
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environment = {
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systemPackages = [ cfg.package ];
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etc."krb5.conf".source = format.generate "krb5.conf" cfg.settings;
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};
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};
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meta.maintainers = builtins.attrValues {
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inherit (lib.maintainers) dblsaiko h7x4;
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};
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}
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