problem with hostname

[pkaplan1 at comcast.net]

----- Original Message ----- 
From: "matteo filippetto" <matteo.filippetto at gmail.com> 
To: "Ubuntu user technical support, not for general discussions" <ubuntu-users at lists.ubuntu.com> 
Sent: Thursday, July 9, 2009 8:02:41 AM GMT -05:00 US/Canada Eastern 
Subject: Re: problem with hostname 

2009/7/9 <pkaplan1 at comcast.net>: 
> 
> ----- Original Message ----- 
> From: "NoOp" <glgxg at sbcglobal.net> 
> To: ubuntu-users at lists.ubuntu.com 
> Sent: Wednesday, July 8, 2009 2:04:45 PM GMT -05:00 US/Canada Eastern 
> Subject: Re: problem with hostname 
> 
>>On 07/06/2009 07:51 PM, pkaplan1 at comcast.net wrote: 
>>> When I first set up my box the system prompt read: 
>>> 
>>> <username>@<hostname>:$ 
>>> 
>>> Recently it changed to : 
>>> 
>>> <username>@(none):$ 
>>> 
>>> When I need to invoke sudo I get: 
>>> 
>>> <username>@(none):~$ sudo <command> 
>>> sudo: unable to resolve host 
>>> sudo: unable to resolve host 
>>> sudo: unable to resolve host 
>>> sudo: unable to resolve host 
>>> [sudo] password for <username>: 
>>> 
>>> I can set the hostname with: 
>>> 
>>> sudo hostname <hostname> 
>>> 
>>> but the new hostname is not retained after reboot. 
>> 
>>It won't, see 'man hostname' 
>><quote> 
>>SET NAME 
>> When called with one argument or with the --file option, the 
>>commands set the host name or the NIS/YP domain name. Note that this is 
>>effective only until the next reboot. Edit /etc/hostname for 
>>permanent change. 
>>Note, that only the super-user can change the names. 
>></quote> 
>> 
>>> 
>>> Shouldn't the following define my hostname? 
>>> 
>>> <username>@(none):~$ cat /etc/hosts 
>>> 127.0.0.1 localhost 
>>> 127.0.1.1 <hostname> 
>>... 
>>> <username>@(none):~$ cat /etc/hostname 
>>> <hostname> 
>> 
>>The last should (/etc/hostname). If you look at 'cat 
>>/etc/rcS.d/S02hostname.sh/ or 'cat /etc/init.d/hostname.sh' you will see 
>>that it reads /etc/hostname for a value & if it does not find one it 
>>will resort to localhost. 
>> 
>>I tested by duplicating your /etc/hosts and then blanked out 
>>/etc/hostname (removed my hostname from the file). Rebooted and now my 
>>system shows as yours: 
>> 
>><username>@(none):~$ 
>> 
>>Changed it back & rebooted & now I'm showing: 
>> 
>><username>@<hostname>:~$ 
>> 
>>> 
>>> How can I restore <hostname> permanently? 
> 
>>As Fred pointed out: 
>>$ gksu gedit /etc/hostname 
>>add the host name you wish in the file. Note: only the hostname, nothing 
>>else. Reboot and check 'cat /etc/hostname' again before doing anything. 
>> 
>>If /etc/hostname is blank, then perhaps your network manager is making 
>>the change? 
>> 
>>What version/flavour of Ubuntu are you using? What permissions are set 
>>for /etc/hostname? 
>>$ ls -l /etc/hostname 
>>-rw-r--r-- 1 root root 6 2008-07-12 13:56 /etc/hostname 
>>Also check your user privileges (System|Administration|<username>|User 
>>Privileges - see if 'Administer the system' is checked. 
>> 
> 
> NoOp, 
> Thanks for the explanation and effort. 
> Although I'm no expert, /etc/rcS.d/S02hostname.sh/ and 'cat 
> /etc/init.d/hostname.sh' appear to point to /etc/hostname and I did not 
> knowingly modify these. 
> Currently my /etc/hostname file has a single line containing my intended 
> hostname. 
> The file permissions are as you indicate above. 
> I do have administration privileges for the system. 
> 
> So, still, I'm stumped. My hostname is not being read following reboot, so 
> I have to manually define it after each boot. 
> 
> Paul 
> -- 
> ubuntu-users mailing list 
> ubuntu-users at lists.ubuntu.com 
> Modify settings or unsubscribe at: 
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users 
> 
> -- 
> ubuntu-users mailing list 
> ubuntu-users at lists.ubuntu.com 
> Modify settings or unsubscribe at: 
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users 
> 
> 

>Hi, 

>maybe your hostname is set by dhcp? do you check this? 
>In this case you have to set adjust dhclient.conf 


I don't think so, but this raised an interesting thought...could a change to /etc/samba/smb.conf have caused a problem? 

Paul 




>Bye 
>-- 
>Matteo Filippetto 

-- 
ubuntu-users mailing list 
ubuntu-users at lists.ubuntu.com 
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-users 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20090709/ad927ec7/attachment.html>