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authorSusant Sahani <susant@redhat.com>2014-08-14 23:06:11 +0530
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2014-08-14 19:48:57 -0400
commit209e9dcd7b2f23b68ff93bf20fad025bc03219ac (patch)
treeceff338a43dc61ee102275f891e36d334d27a0ea /man/systemd.socket.xml
parent1dbe0a6efda7b1d35957eab7e1d56a2c69d806d9 (diff)
socket: Add Support for TCP keep alive variables
The tcp keep alive variables now can be configured via conf parameter. Follwing variables are now supported by this patch. tcp_keepalive_intvl: The number of seconds between TCP keep-alive probes tcp_keepalive_probes: The maximum number of TCP keep-alive probes to send before giving up and killing the connection if no response is obtained from the other end. tcp_keepalive_time: The number of seconds a connection needs to be idle before TCP begins sending out keep-alive probes.
Diffstat (limited to 'man/systemd.socket.xml')
-rw-r--r--man/systemd.socket.xml36
1 files changed, 36 insertions, 0 deletions
diff --git a/man/systemd.socket.xml b/man/systemd.socket.xml
index 352825f580..5efb398b09 100644
--- a/man/systemd.socket.xml
+++ b/man/systemd.socket.xml
@@ -488,6 +488,42 @@
</varlistentry>
<varlistentry>
+ <term><varname>KeepAliveTime=</varname></term>
+ <listitem><para>Takes time (in seconds) as argument . The connection needs to remain
+ idle before TCP starts sending keepalive probes. This controls the TCP_KEEPIDLE
+ socket option (see
+ <citerefentry><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ and the <ulink
+ url="http://www.tldp.org/HOWTO/html_single/TCP-Keepalive-HOWTO/">TCP
+ Keepalive HOWTO</ulink> for details.)
+ Defaults value is 7200 seconds (2 hours).</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>KeepAliveInterval=</varname></term>
+ <listitem><para>Takes time (in seconds) as argument between individual keepalive probes,
+ if the socket option SO_KEEPALIVE has been set on this socket seconds as argument.
+ This controls the TCP_KEEPINTVL socket option (see
+ <citerefentry><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ and the <ulink
+ url="http://www.tldp.org/HOWTO/html_single/TCP-Keepalive-HOWTO/">TCP
+ Keepalive HOWTO</ulink> for details.)
+ Defaults value is 75 seconds.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
+ <term><varname>KeepAliveProbes=</varname></term>
+ <listitem><para>Takes interger as argument. It's the number of unacknowledged probes to
+ send before considering the connection dead and notifying the application layer.
+ This controls the TCP_KEEPCNT socket option (see
+ <citerefentry><refentrytitle>socket</refentrytitle><manvolnum>7</manvolnum></citerefentry>
+ and the <ulink
+ url="http://www.tldp.org/HOWTO/html_single/TCP-Keepalive-HOWTO/">TCP
+ Keepalive HOWTO</ulink> for details.)
+ Defaults value is 9.</para></listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><varname>NoDelay=</varname></term>
<listitem><para>Takes a boolean
argument. TCP Nagle's algorithm works by combining a number of