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Accepting request 924959 from home:stroeder:network

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- reworked nsd.service:
  * directly start as User=_nsd
  * even more hardening
  * removed commented and unused directives

FWIW: This was successfully tested on Tumbleweed x86_64.

OBS-URL: https://build.opensuse.org/request/show/924959
OBS-URL: https://build.opensuse.org/package/show/server:dns/nsd?expand=0&rev=90
This commit is contained in:
Michael Ströder 2021-10-12 20:46:21 +00:00 committed by Git OBS Bridge
parent 3625623c92
commit 1c78b76f36
2 changed files with 32 additions and 8 deletions
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8
nsd.changes
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@ -1,3 +1,11 @@
-------------------------------------------------------------------
Tue Oct 12 20:19:52 UTC 2021 - Michael Ströder <michael@stroeder.com>
- reworked nsd.service:
* directly start as User=_nsd
* even more hardening
* removed commented and unused directives
-------------------------------------------------------------------
Tue Oct 12 20:01:24 UTC 2021 - Johannes Segitz <jsegitz@suse.com>

32
nsd.service
View File

@ -3,6 +3,13 @@ Description=NSD DNS Server
After=syslog.target network.target
[Service]
Type=simple
PIDFile=/run/nsd/nsd.pid
ExecStart=/usr/sbin/nsd -d -c /etc/nsd/nsd.conf
ExecStopPost=/bin/rm -f /var/lib/nsd/xfrd.state
User=_nsd
Group=_nsd
# added automatically, for details please see
# https://en.opensuse.org/openSUSE:Security_Features#Systemd_hardening_effort
ProtectSystem=full
@ -15,14 +22,23 @@ ProtectKernelModules=true
ProtectKernelLogs=true
ProtectControlGroups=true
RestrictRealtime=true
# end of automatic additions
Type=simple
PIDFile=/run/nsd/nsd.pid
#EnvironmentFile=-/etc/sysconfig/nsd
#ExecStart=/usr/sbin/nsd -D -c /etc/nsd/nsd.conf $OTHER_NSD_OPTS
ExecStart=/usr/sbin/nsd -d -c /etc/nsd/nsd.conf
ExecStopPost=/bin/rm -f /var/lib/nsd/xfrd.state
# end of automatic additions
# even more hardening options
CapabilityBoundingSet=CAP_NET_BIND_SERVICE
AmbientCapabilities=CAP_NET_BIND_SERVICE
#RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX
PrivateTmp=yes
NoNewPrivileges=yes
MountFlags=private
LockPersonality=yes
KeyringMode=private
RestrictNamespaces=yes
RestrictSUIDSGID=yes
DevicePolicy=closed
MemoryDenyWriteExecute=yes
SystemCallArchitectures=native
SystemCallFilter=~ @clock @cpu-emulation @debug @keyring @module @mount @raw-io @reboot @swap @obsolete @chown @privileged @resources @pkey @setuid
[Install]
WantedBy=multi-user.target