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tcp_keepalive_time

file: /proc/sys/net/ipv4/tcp_keepalive_time
variable: net.ipv4.tcp_keepalive_time
Official reference

How often TCP sends out keepalive messages when keepalive is enabled. Default: 2hours.

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Last update: 2026-03-30 12:00:00 UTC
Parsed kernel version 6.18 from git

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Updated by Ilya Vasilyev aka Nadz Goldman from Arviol ( vStack dep. ), ITG