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resolv.conf.5: Document use-vc option added to glibc 2.14 

Fix Ubuntu bug #1110781:
https://bugs.launchpad.net/ubuntu/+source/manpages/+bug/1110781

Reported-by: Thomas Hood <jdthood@gmail.com>
Signed-off-by: Stéphane Aulery <saulery@free.fr>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Stéphane Aulery 2015-04-22 02:21:09 +02:00 committed by Michael Kerrisk
parent 7f4f24eaf1
commit 7d9f4717fd
1 changed files with 7 additions and 0 deletions
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man5/resolv.conf.5
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@ -272,6 +272,13 @@ as if it were a top level domain (TLD).
This option can cause problems if the site has ``localhost'' as a TLD This option can cause problems if the site has ``localhost'' as a TLD
rather than having localhost on one or more elements of the search list. rather than having localhost on one or more elements of the search list.
This option has no effect if neither RES_DEFNAMES or RES_DNSRCH is set. This option has no effect if neither RES_DEFNAMES or RES_DNSRCH is set.
.TP
.BR use-vc " (since glibc 2.14)"
sets
.BR RES_USEVC
in
.IR _res.options .
This option forces the usage of TCP for DNS resolutions.
.RE .RE
.LP .LP
The \fIdomain\fP and \fIsearch\fP keywords are mutually exclusive. The \fIdomain\fP and \fIsearch\fP keywords are mutually exclusive.