(split) LDP: Update original to LDP v3.40.

[linuxjm/LDP_man-pages.git] / original / man5 / resolv.conf.5

diff --git a/original/man5/resolv.conf.5 b/original/man5/resolv.conf.5
index 69a9786..28abe58 100644 (file)
--- a/original/man5/resolv.conf.5
+++ b/original/man5/resolv.conf.5
@@ -18,7 +18,7 @@
 .\"
 .\" Added ndots remark by Bernhard R. Link - debian bug #182886
 .\"
-.TH RESOLV.CONF 5 2012-02-08 "" "Linux Programmer's Manual"
+.TH RESOLV.CONF 5 2012-04-23 "" "Linux Programmer's Manual"
 .UC 4
 .SH NAME
 resolv.conf \- resolver configuration file
@@ -231,6 +231,19 @@ sets
 in
 .IR _res.options .
 This enables support for the DNS extensions described in RFC\ 2671.
+.TP
+.BR single-request " (since glibc 2.10)"
+sets
+.BR RES_SNGLKUP
+in
+.IR _res.options .
+By default, glibc performs IPv4 and IPv6 lookups in parallel since
+version 2.9.
+Some appliance DNS servers
+cannot handle these queries properly and make the requests time out.
+This option disables the behavior and makes glibc perform the IPv6
+and IPv4 requests sequentially (at the cost of some slowdown of the
+resolving process).
 .RE
 .LP
 The \fIdomain\fP and \fIsearch\fP keywords are mutually exclusive.