rdma-ndd: disable systemd ProtectHostName feature

[ Upstream commit 57637df ]

ProtectHostName prevents dynamic name changes to be noticed by the service.
This means that on a system with no static hostname, rdma-ndd is started with
a hostname 'localhost' and is not aware of new hostname retreived
through a DHCP lease.

Fixes: 384b75b ("rdma-ndd: systemd hardening")
Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>

rdma-ndd/rdma-ndd.service.in

@@ -22,7 +22,6 @@ Restart=always
 ExecStart=@CMAKE_INSTALL_FULL_SBINDIR@/rdma-ndd --systemd
 ProtectSystem=full
 ProtectHome=true
-ProtectHostname=true
 ProtectKernelLogs=true
 
 # rdma-ndd is automatically wanted by udev when an RDMA device with a node description is present