Re: [squid-users] Squid not responding

stephane lepain wrote:
> On Saturday 10 November 2007 01:46:59 Amos Jeffries wrote:
>> stephane lepain wrote:
>>> On Friday 09 November 2007 15:20:04 Tek Bahadur Limbu wrote:
>>>> Hi Stephane,
>>>>
>>>> stephane lepain wrote:
>>>>> Hi Guys,
>>>>>
>>>>> Squid did not respond when I restarted my PC. I don't have any error
>>>>> message in /etc/squid/squid.out. It seems that squid is not even
>>>>> registering. Since I don't have an error message, I can't sort this
>>>>> out. I also tried a restart, stop and start but nothing would do.
>>>>> /etc/rc.d/init.d/ and then ./squid restart.
>>>>> Anyone has any thought on this?
>>>> Which OS and Squid version are you running? What do you have for the
>>>> following directive in your squid.conf:
>>>>
>>>> cache_log
>>>>
>>>> If you had tried to restart Squid from /etc/rc.d/init.d and if Squid
>>>> failed to load, then Squid will report errors in cache.log unless you
>>>> have configured Squid not to generate a cache.log file!
>>>>
>>>>
>>>> By the way, just in case, check your hard drive disk space usage.
>>>>
>>>> If nothing helps, check where the Squid binary is located from your
>>>> startup script in /etc/rc.d/init.d/squid.
>>>>
>>>> Go to the directory where the Squid binary is residing and run:
>>>>
>>>> ./squid -NCd1
>>>>
>>>>
>>>> You will see the errors why your Squid is not starting or not responding
>>>> in the 1st place.
>>>>
>>>> Thanking you ...
>>>>
>>>>> Cheers to all of you
>>> Hi all,
>>>
>>> I now have got an error message saying "could not determine fully
>>> qualified host name. set visible host name" . I cant seem to get around
>>> this. I would appreciate a hand.
>>>
>>> Cheers to all
>> Publicly visible host needs a FQDN assigned and rDNS configured. All the
>> networking software on your host will be having problems with this.
>>
>> Assuming you are on a unice;
>> /etc/hostname should contains a FQDN
>>
>> OR in the rare event that you CANT do that;
>>
>> it must contain a valid host name (ie 'proxy') and /etc/resolv.conf
>> must contain a domain entry that combines to form a FQDN <host>.<domain>
>> with rDNS that resolves to an IP asigned to that machine.
>>
>>
>> As a hack-around just for squid there is the visible_hostname directive,
>> although this will go nowhere to fixing the DNS/rDNS problems at the
>> cause of the message.
>>
>> Amos
>
> Though that is kind of weird because I didn't have that problem before. I have
> switched all my server from Mandriva to Ubuntu Server version. I think that
> could be the problem!! I am now using SQUID 2.6 stable 14 as well. Should I
> run the latest version?
>

Ah, Ubuntu.
There is a well-known weirdnesses with the Ubuntu NetworkManager,
related to the resolv.conf.

Most 'nixes I've seen configure /etc/hostname as a single tag and
resolv.conf to contain the rest of the domain as I said before.
So far that okay.
Where Ubuntu screw things up is replacing the resolv.conf every time any
one of the interfaces goes up. Using details pulled via DHCP from that
interface (ONLY!) or from its default config.
If you have more than one interface on the machine it will only take the
settings from the last one to go up :-( even if proper DHCP is coming in
from an earlier one! That can cause a whole bunch of short term problems
with DNS and routing until its sorted out.

The visible_hostname option in squid.conf seem sto be the only way to
get around this consistently.

Amos
Received on Sat Nov 10 2007 - 05:27:57 MST