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.
- 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 : https://my.f5.com/manage/s/article/K8482 https://my.f5.com/manage/s/article/K22518624
>>> you can share the Pcap if you want to have a look.
I am not sure the root cause of this problem, but it seems to be network issue cause i checked at that night, the connection was okay again, it kept unstable until i tried to change ip address of virtual server (i could make sure there is no ip conflict).
@TD-Bernie - if you got an answer that led to a solution it would be helpful to the future-community-selves to click Accept As Solution. Thanks for joining and being part of our community.
