Tag: troubleshooting

All the articles with the tag "troubleshooting".

• One five-tuple, two conntrack realities

  4 Aug, 2026

  Technical deep dive into One five-tuple, two conntrack realities

• Default Deny Broke Readiness Not Traffic

  20 Jul, 2026

  Technical deep dive into Default Deny Broke Readiness Not Traffic

• SYN seen, SYN-ACK missing, root cause still unclear

  19 Jul, 2026

  Technical deep dive into SYN seen, SYN-ACK missing, root cause still unclear

• Hairpin service failures when a Pod calls itself

  1 Jul, 2026

  Technical deep dive into Hairpin service failures when a Pod calls itself

• Expiring set elements caused the intermittent deny

  22 Jun, 2026

  Technical deep dive into Expiring set elements caused the intermittent deny

• Tcpdump Cut the Ceiling in Half

  8 Jun, 2026

  Technical deep dive into Tcpdump Cut the Ceiling in Half

• Why cloned images lose tcpdump and raw sockets

  8 Jun, 2026

  Technical deep dive into Why cloned images lose tcpdump and raw sockets

• Kubernetes DNAT with nft backend gone sideways

  29 May, 2026

  Technical deep dive into Kubernetes DNAT with nft backend gone sideways

• tc flower offload worked until it silently did not

  14 May, 2026

  Technical deep dive into tc flower offload worked until it silently did not

• Upstream packet loss or local ring starvation

  5 May, 2026

  Technical deep dive into Upstream packet loss or local ring starvation