Recommend checking DNS.

Joint work of lum@, jmc@ and myself;
committing on behalf of lum@ who is short on time.
ok jmc@ lum@ miod@

1 files changed, 26 insertions, 2 deletions

diff --git a/share/man/man8/afterboot.8 b/share/man/man8/afterboot.8
index 25f876d9693..2746e260d7a 100644
--- a/share/man/man8/afterboot.8
+++ b/share/man/man8/afterboot.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: afterboot.8,v 1.132 2011/01/30 15:37:17 schwarze Exp $
+.\"	$OpenBSD: afterboot.8,v 1.133 2011/02/16 22:35:08 schwarze Exp $
 .\"
 .\" Copyright (c) 1997 Marshall M. Midden
 .\" All rights reserved.
@@ -29,7 +29,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: January 30 2011 $
+.Dd $Mdocdate: February 16 2011 $
 .Dt AFTERBOOT 8
 .\" Originally created by Marshall M. Midden -- 1997-10-20, m4@umn.edu
 .Os
@@ -260,6 +260,30 @@ is required) to
 .Dl net.inet6.ip6.forwarding=1
 .Pp
 Packets are not forwarded by default, due to RFC requirements.
+.Ss Check DNS
+Use
+.Xr host 1
+or
+.Xr dig 1
+to check that domain name resolution is working properly.
+.Pp
+Most likely, the IP address of at least one domain name server
+was added to
+.Xr resolv.conf 5
+while installing the system.
+If DHCP is in use, it will overwrite
+.Pa /etc/resolv.conf
+every time
+.Xr dhclient-script 8
+is run but
+.Pa /etc/resolv.conf.tail
+can be used to add options and extra name servers to those received
+dynamically.
+.Pp
+A
+.Xr hosts 5
+file can be used if there is a need for system specific name
+resolution entries.
 .Ss Check disk mounts
 Check that the disks are mounted correctly by
 comparing the