Welcome to Security Serenity — firewall engineering, routing policies, VPN debugs, RFC compliance, and the occasional vendor accountability moment.
dscpdump: Reading QoS Markings Off the Wire
June 12, 2026
QoS troubleshooting has a major visibility problem.
CommVault MediaAgent, Check Point Firewall, and “PSL Drop: WS”: More than meets the eye
April 11, 2026
If you’ve landed here because you googled PSL Drop: WS or
fwmultik_process_f2p_cookie_inner at some ungodly hour — welcome.
You’re in the right place.