From 8af81ad66b066fdaa712a29d2aed25eb3f53036c Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 7 May 2013 14:21:27 +0200
Subject: [PATCH] Don't start nscd if it's not already running

"systemctl restart" will start a service if it's not already
running...
---
 modules/config/networking.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/config/networking.nix b/modules/config/networking.nix
index a4eb435ed67..799d97a089f 100644
--- a/modules/config/networking.nix
+++ b/modules/config/networking.nix
@@ -67,7 +67,7 @@ in
           '' + optionalString config.services.nscd.enable ''
             # Invalidate the nscd cache whenever resolv.conf is
             # regenerated.
-            libc_restart='${pkgs.systemd}/bin/systemctl restart --no-block nscd.service'
+            libc_restart='${pkgs.systemd}/bin/systemctl try-restart --no-block nscd.service'
           '' + optionalString cfg.dnsSingleRequest ''
             # only send one DNS request at a time
             resolv_conf_options='single-request'