We used to use reprepro (4.17) to manage our package repository. However, it did not support serving multiple versions of the same package. The Benjamin Drung version from GitHub/profitbricks/reprepro does. Here's our recipe to build it.
build reprepro debian pkg
How to get (semi)exact uptime values for processes?
process uptime linux
Do you use sudo for automated tasks? For instance to let the Zabbix agent access privileged information? Then your auth.log may look a bit flooded, like this:
zabbix sudo logging
The PowerDNS nameserver pdnsutil utility has an add-record, but no remove-record. How can we remove records programmatically for many domains at once?
One of our Asterisk telephony machines appeared to "leak" queue member agents. That is, refuse to ring them because they were supposedly busy.
debug python gdb asterisk