HTTPS/TLS/SSL application connection attempts fail going through a firewall
Issue
- HTTPS/TLS/SSL application connection attempts fail going through a firewall
- The client is responding with
RSTto a Challenge ACK but the server is failing to close the existing socket. - New connections to the server is failing intermittently during peak hours.
- RHEL replies with an
ACKtoSYNinstead ofSYN-ACK.
Environment
- Red Hat Enterprise Linux 9
- Red Hat Enterprise Linux 8
- External connection-tracking firewall (eg: Palo Alto, Fortinet FortiGate)
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.