Client side parameters

[PtY]

Dear Guys,

I have some (perhaps usable by others too) UserParameters for monitoring Linux servers, and I want to share them.
If you have too, you can share them too in this thread.

[PtY]

NTP time parameters

UserParameter=time.correction,offset=$(/usr/bin/ntpq -pn | /bin/egrep '^\*' | /usr/bin/awk '{ print $9 }'); [ -z "$offset" ] && offset=1000; /bin/echo "$offset"

Works with Ubuntu (Precise LTS), and give back the time precision to the last sinchronized remote host in milliseconds. If some problem given, the value will be 1000 (1s).

UserParameter=time.stratum,stratum=$(/usr/bin/ntpq -c rv | /bin/egrep -o 'stratum=[0-9]+' | /usr/bin/cut -d'=' -f2); [ -z "$stratum" ] && stratum=17; /bin/echo "$stratum"

Works with Ubuntu (Precise LTS), and give back the client's stratum status - or 17 if got some problem.

[PtY]

Ubuntu software updates

If you have installed update-notifier-common, then apt check can give back the number of possible updates and security updates.

UserParameter=system.updates,num=$(/usr/lib/update-notifier/apt-check 2>&1 | /usr/bin/cut -d';' -f1); [ -z "$num" ] && num=100; /bin/echo "$num"

This gives back the number of all updates (or 100 if error). Suggested severity: warn, if >0

UserParameter=system.updates.sec,num=$(/usr/lib/update-notifier/apt-check 2>&1 | /usr/bin/cut -d';' -f2); [ -z "$num" ] && num=100; /bin/echo "$num"

This gives back the number of security updates (or 100 if error). Suggested severity: average if >15