docs/140434: added unset variable information to rc.conf man page for "hostname"

[Jason Helfman-2]

>Number:         140434
>Category:       docs
>Synopsis:       added unset variable information to rc.conf man page for "hostname"
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:      
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Mon Nov 09 22:50:03 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Jason Helfman
>Release:        7.2-RELEASE-p4
>Organization:

Experts Exchange
>Environment:
FreeBSD eggman.experts-exchange.com 7.2-RELEASE-p4 FreeBSD 7.2-RELEASE-p4 #0: Fri Oct  2 12:21:39 UTC 2009     root@...:/usr/obj/usr/src/sys/GENERIC  i386
>Description:
After performing an automated installation of FreeBSD 7.2, I found that the console login showed "Amnesiac."

For some reason, I thought this was associated to a timezone, but found it was the hostname value if unset in /etc/rc.conf.

>How-To-Repeat:
Remove hostname value from /etc/rc.conf, and reboot.
>Fix:
Add hostname value to /etc/rc.conf, and reboot.

Patch attached with submission follows:

--- rc.conf.5.orig 2009-11-09 14:29:55.000000000 -0800
+++ rc.conf.5 2009-11-09 14:35:09.000000000 -0800
@@ -346,7 +346,8 @@
 .Pq Vt str
 The fully qualified domain name (FQDN) of this host on the network.
 This should almost certainly be set to something meaningful, even if
-there is no network connection.
+there is no network connection. If this value is unset, your console
+login will display a default hostname value of "Amnesiac."
 If
 .Xr dhclient 8
 is used to set the hostname via DHCP,


>Release-Note:
>Audit-Trail:
>Unformatted:
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