Julian groaned, rubbing the sleep from his eyes. He was the senior NetOps engineer for a mid-sized cloud provider. Their edge was built on OpenBSD, chosen for the purity and rigor of its Packet Filter (PF). For seven years, it had been a silent, perfect stone wall. Until tonight.
/var/log/messages: pfctl: /etc/pf.conf:87: syntax error /var/log/messages: pfctl: /etc/pf.conf:87: rule expands to a non-list element pf configuration incompatible with pf program version
pfctl -f /etc/pf.conf
“Firewall node gw-04-dfw in CARP backup state. Packet filter service failed to start.” Julian groaned, rubbing the sleep from his eyes
echo "table <api_sources> persist 10.88.12.0/24, 10.88.13.0/24 " >> /etc/pf.conf sed -i '87s/from .* /from <api_sources>/' /etc/pf.conf it had been a silent
Silence. Then the gentle tick of the rule counter.