https://darrenqu.net/observability/Packet capture, SNMP, the Elastic Stack, Zabbix — making a network legible.Hugoen-USDarren QuDarren Qu2026 Darren QuSat, 25 Apr 2026 00:00:00 +0000https://darrenqu.net/observability/tshark-and-tcpdump-guide/Sat, 25 Apr 2026 00:00:00 +0000https://darrenqu.net/observability/tshark-and-tcpdump-guide/Observabilitypacket-captureCapture filters versus display filters, the field extraction that turns a capture into data, and which of the two tools to reach for.