Some time ago I’ve tried to solve a ‘funny’ issue with PowerDNS. It refused to start on one of my backup VPS. After apt-get dist-upgrade, it first stopped to work with very meaningful ‘Failed at step ADDRESS_FAMILIES‘ error. Well, I’ve managed to solve it somehow, but then another ‘funny’ problem popped out…
Some hopefully useful tips on speeding up data import via SOLR DataImportHandler.
In PostgreSQL it’s quite easy to restrict access for user to some tables: create restrictive view grant usage on view schema grant select on view to restricted user done Really easy. And it’s not working when the restrictive view, is selecting from another view that is using function(s)!
I encountered this problem again, so let’s write it down to avoid googling it. Problem: PowerDNS fails to start with pdns.service: Failed at step ADDRESS_FAMILIES spawning /usr/sbin/pdns_server: Invalid argument Solution: edit /lib/systemd/system/pdns.service comment out RestrictAddressFamilies comment out ProtectSystem=full possibly kill systemd-resolved systemctl daemon-reload ask yourself again, why are you using debian with systemd on server […]
I’ve hacked together and up-to-date version of Asuswrt Merlin firmware for oldie but goldie Asus RT-N16 router. Beware, this firmware is only intended for use by advanced users.