CVSROOT: /cvs
Module name: src
Changes by: [email protected] 2011/07/06 17:44:20
Modified files:
lib/libc/gen : sysctl.3
sys/netinet : tcp_timer.c tcp_timer.h tcp_usrreq.c tcp_var.h
sbin/sysctl : sysctl.8
Log message:
Add sysctl net.inet.tcp.always_keepalive, when this is set the system
behaves as if SO_KEEPALIVE was set on all TCP sockets, forcing keepalives
to be sent every net.inet.tcp.keepidle half-seconds.
In conjunction with a keepidle value greatly reduced from the default,
this can be useful for keeping sessions open if you are stuck on a network
with short NAT or firewall timeouts.
Feedback from various people, ok henning@ claudio@
