Host Internet Address Problem

Sat Jun 3 01:01:02 UTC 2006

OK.  Here's what I got.

# hostname
> computer_name

# host computer_name
> Host computer_name not found: 3(NXDOMAIN)

So, I suppose Comcast didn't populate their DNS entry appropriately.  I
tried this.

# host 127.0.0.1
> 1.0.0.127.in-addr.arpa domain name pointer localhost.

And

# host localhost
> localhost has address 127.0.0.1
   Host localhost not found: 3(NXDOMAIN)
   Host localhost not found: 3(NXDOMAIN)

So, do I complain to Comcast?  Will they repopulate their DNS shortly?  From
this I'm getting that, in the past, Comcast didn't give me a hostname.  Then
they decided to give me one, except they screwed everything up.  Is there
any way I can go in and manually set up the hostname and such?

By the way, how do I change the machine's name?

Also, I attempted the other method suggested and didn't get any success.

On 6/2/06, Rick Stevens <rstevens at vitalstream.com> wrote:
>
> On Fri, 2006-06-02 at 14:34 -0700, under.actuate at gmail.com wrote:
> > OK, here's the issue.  I moved to the Bay Area.  I have a new internet
> > service provider.  It's Comcast.  I've got Windows XP and FC4 on my
> > computer.  Just a couple days ago everything was working great (with
> > new service).  But all of a sudden the whole host internet address has
> > blown up.  When I login, a message says Gnome cannot function properly
> > without an internet address for my_computer_name.  Opening an
> > x-terminal, I noticed that the command line reads
> > my_login at my_computer_name.  This is odd.  In the past it read
> > my_login at internet_host_address_deal.  So now I can't remotely login to
> > other places and what-not.  The web browser still works though.  So,
> > the Gateway has to be working.  The system just doesn't login with the
> > internet address (like it used to do).
> >
> > I would definitely appreciate any help here.
>
> You didn't say if you have a router between your system and the cable or
> (A)DSL modem or not.  Assuming you you're plugged directly into the
> modem, it appears that the DHCP server for Comcast didn't populate
> your /etc/hosts file with your system's name when it obtained an IP, or
> didn't give it a name that will reverse-resolve.  So, X can't start
> since it has no idea what machine "my_computer_name" is.
>
> Go to a console (CTRL-ALT-F1 through -F5), log in as root and check the
> output of "hostname".  That's what your machine thinks its host name is.
> If it's not set, or it contains "localhost", then Comcast didn't send
> you a host name.
>
> If you did get a host name, try:
>
>         # host `hostname`
>
> and see if an IP is returned.  If not, then Comcast didn't populate
> their DNS entry appropriately.
>
> If it did return an IP, make sure that IP is the same as shown in the
> "ifconfig" for your network card.  If they match, then try
>
>         # host IPaddress
>
> If you don't get a response, then Comcast didn't populate their reverse
> DNS (PTR) records.
>
> Of course, if you have a router, it's one hell of a lot easier to give
> your a machine a fixed IP address on the LAN side of the router, set up
> the /etc/hosts file to have that IP and your host's name in it and let
> the router do the work (that's what I do).
>
> Another alternative is to change your machine's name to
> "localhost.localdomain" and restart X (hit "ALT-F7", then
> "CTRL-ALT-BACKSPACE" to restart the X server).
>
> I hate futzing with DHCP.  I sure wish the ISPs would implement the
> whole standard instead of "selected parts" of it and use a DHCP daemon
> that adhered to the standard instead of Winblows servers.  Jeeze!
>
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -  Tempt not the dragons of fate, since thou art crunchy and taste   -
> -                         good with ketchup.                         -
> ----------------------------------------------------------------------
>
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