From: bert hubert <bert.hubert@netherlabs.nl>
Date: Tue, 11 Jun 2013 14:19:13 +0000 (+0200)
Subject: updated manpage with TIME_WAIT recycling advice
X-Git-Tag: rec-3.6.0-rc1~681
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=927b9e6cdade369f51a207d0ac8d024902f1d5e6;p=pdns

updated manpage with TIME_WAIT recycling advice
---

diff --git a/pdns/docs/dnstcpbench.1.txt b/pdns/docs/dnstcpbench.1.txt
index 590b8521c..a778d9365 100644
--- a/pdns/docs/dnstcpbench.1.txt
+++ b/pdns/docs/dnstcpbench.1.txt
@@ -21,6 +21,12 @@ example:
 	www.powerdns.com ANY
 	powerdns.com MX
 
+When benchmarking extended runs, it may be necessary to enable TIME_WAIT
+recycling, as TCP/IP port tuples may otherwise run out.  On Linux this is
+performed by running:
+
+   # echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle 
+
 OPTIONS
 -------