====== infra1.shackspace.de ======                 
{{tag> infrastructure computing}} 

**Funktion**
  * ssh proxy
  * dnsmasq - local DNS resolver f. [[doku/server/host1.shackspace.de]]
  
**2023-01-27**
  * anwesend: chris
  * watchdog m. restart f. dnsmasq eingerichtet
    * added /etc/cron.d/watch-dnsmasq
    * added /root/bin/watch-dnsmasq

**2023-11-12**
  * anwesend: chris
  * watchdog m. restart f. dnsmasq erweitert
  
<file txt /etc/cron.d/watch-dnsmasq>
# watch and restart dnsmasq
# Fri 27 Jan 2023 04:13:12 PM CET, chris
* * * * * root /root/bin/watch-dnsmasq
</file>
<file txt /root/bin/watch-dnsmasq>
#!/bin/bash

# Test
#X=$( ( echo REFUSED >&1 ) ; dig +short github.com ; dig +short shackspace.de ; dig +short citecs.de 2>&1 )
X=$( dig +short github.com ; dig +short shackspace.de ; dig +short citecs.de 2>&1 )

if grep -q REFUSED <<< "$X" ; then
        echo "DNS resolving failed on infra1.shackspace.de (found 'REFUSED')"
        echo "restarting dnsmasq..."
        systemctl status dnsmasq
        systemctl restart dnsmasq
        systemctl status dnsmasq
else if [ "$X" = "" ] ; then
        echo "DNS resolving failed on infra1.shackspace.de (got empty answer)"
        echo "restarting dnsmasq..."
        systemctl status dnsmasq
        systemctl restart dnsmasq
        systemctl status dnsmasq
fi fi
</file>