What is TCP keepalive, how do I change it and how can I tell it is enabled on a particular socket?
Issue
- What is TCP keepalive?
- How can I tell keepalive is enabled on a particular socket?
- Why is TCP keepalive not enabled on all sockets?
- What are the tunable values for TCP keep alive?
- How do I calculate the time to detect TCP connection failure?
- How do I set and change TCP keepalive?
- In AIX, the time to detect TCP connection failure is tcp_keepidle + ( tcp_keepintvl * tcp_keepcnt ), how is this calculated on Linux?
Environment
- Red Hat Enterprise Linux (all versions)
- TCP connections
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