I got an api backend service behind an F5, the problem is if Virtual Server is Standard then client gets "Connection reset by peer", the problem is disapeared if i switch to Performance (HTTP).
However, Performance HTTP would not allow to config application security policy, so is there any solution for Standard type.
- Enable rest cause ( Log & Packet ) >>> https://my.f5.com/manage/s/article/K13223
- Check /var/log/ltm >> while applying http profile.
- Take a Pcap again >> and check all of reset packets.
Note ( Do that while applying http profile )
- Also Create custom http profile >>> try to modify Maximum header size & header count.
Refer to those articles :
>>> you can share the Pcap if you want to have a look.