From c2af1ff281e44225d1f560f17e49103c70075015 Mon Sep 17 00:00:00 2001
From: Yarny0 <41838844+Yarny0@users.noreply.github.com>
Date: Thu, 13 May 2021 20:59:24 +0200
Subject: [PATCH] nixos/hylafax: enable `ProtectKernelLogs` for most services

Also document that `ProtectClock` blocks access to serial line.
I couldn't found out why this is the case,
but faxgetty complains about the device file
not being accessible with `ProtectClock=true`.
---
 nixos/modules/services/networking/hylafax/systemd.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/services/networking/hylafax/systemd.nix b/nixos/modules/services/networking/hylafax/systemd.nix
index 251a6f6457f..4506bbbc5eb 100644
--- a/nixos/modules/services/networking/hylafax/systemd.nix
+++ b/nixos/modules/services/networking/hylafax/systemd.nix
@@ -106,8 +106,10 @@ let
         PrivateDevices = true;  # breaks /dev/tty...
         PrivateNetwork = true;
         PrivateTmp = true;
+        #ProtectClock = true;  # breaks /dev/tty... (why?)
         ProtectControlGroups = true;
         #ProtectHome = true;  # breaks custom spool dirs
+        ProtectKernelLogs = true;
         ProtectKernelModules = true;
         ProtectKernelTunables = true;
         #ProtectSystem = "strict";  # breaks custom spool dirs