document that dhclient-script overwrites resolv.conf,

and use of resolv.conf.tail;

issue spotted by rick barter via nick;
ok henning@ jaredy@ nick@

1 files changed, 18 insertions, 1 deletions

diff --git a/sbin/dhclient/dhclient-script.8 b/sbin/dhclient/dhclient-script.8
index 57a2abdc54e..c45b3b3c234 100644
--- a/sbin/dhclient/dhclient-script.8
+++ b/sbin/dhclient/dhclient-script.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: dhclient-script.8,v 1.2 2004/04/09 18:30:15 jmc Exp $
+.\"	$OpenBSD: dhclient-script.8,v 1.3 2005/04/09 21:16:23 jmc Exp $
 .\"
 .\" Copyright (c) 1997 The Internet Software Consortium.
 .\" All rights reserved.
@@ -149,6 +149,22 @@ A default route should be set using
 and static routes may need to be set up using
 .Va $new_static_routes .
 .Pp
+Note: since
+.Nm
+effectively overwrites
+.Pa /etc/resolv.conf ,
+any information contained therein is lost.
+If options must be passed to the resolver,
+they may be contained in
+.Pa /etc/resolv.conf.tail ,
+which is appended to the generated
+.Pa /etc/resolv.conf
+by
+.Nm .
+See
+.Xr resolv.conf.tail 5
+for further information.
+.Pp
 If an IP alias has been declared, it must be set up here.
 The alias IP address will be written as
 .Va $alias_ip_address ,
@@ -217,6 +233,7 @@ but current scripts do not do this.
 .Sh SEE ALSO
 .Xr dhclient.conf 5 ,
 .Xr dhclient.leases 5 ,
+.Xr resolv.conf.tail 5 ,
 .Xr dhclient 8 ,
 .Xr dhcpd 8 ,
 .Xr dhcrelay 8