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RE: errors while opening sites

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Are you using /etc/resolve.conf or dns_nameservers in squid.conf

if /etc/resolve.conf used how may entry are there i mean the number of
name servers

Do the following
eg:
If you have 3
nameserver 10.0.0.1
nameserver 10.0.0.2
nameserver 10.0.0.3

comment out one by one and run

time host google.com

check how much time taken by each of them.

//Remy

On Mon, 2008-12-01 at 11:47 +0000, Sameer Shinde wrote:
> Dear Amos,
> 
> Thanks for the reply. 
> We are using the same DNS servers for our existing proxy server which is ISA2000 & is working properly without any problems.
> We want to shift from MS-ISA2000 proxy server to Linux Squid proxy server, so we are building up this new proxy server.
> 
> More over if I access the internet from the Ubuntu proxy server itself, we don't get any such errors.
> 
> Can you / anyone let me know how can we resolve these issue. 
> Also for your information that, so far ubuntu server is just a member server in our enviornment & there is no DNS server configured in Ubuntu server. 
> May be this will help you for finding some outputs.
> 
> 
> ~~~~~~~~~~~~~~~~~~~
> Thanks & Regards,
> Sameer Shinde.
> Sr. Customer Support Engineer,
> Email:- s2sameer@xxxxxxxxxxx
> M:- +91 98204 61580
> http://www.geocities.com/s9sameer
> If everyone is thinking alike, then somebody isn't thinking.
> 
> 
> > Date: Mon, 1 Dec 2008 23:19:58 +1300
> > From: squid3@xxxxxxxxxxxxx
> > To: s2sameer@xxxxxxxxxxx
> > CC: squid-users@xxxxxxxxxxxxxxx
> > Subject: Re:  errors while opening sites
> > 
> > Sameer Shinde wrote:
> >> Dear All,
> >>  
> >> I've installed squid 2.6 installed on my ubuntu8.0.4 server. I'm getting errors like attached one frequently.
> >> It says, "Unable to determine the IP address from host name "anything", but after some time say even after 5 mins the same 
> >> page / site opens.  I'm not able to figure out why is this happening. 
> >> The error appears for any domain & is not particular to any domain.
> >>  
> >> Can anyone help me out in this.
> >> I'm not able to bring the server in live mode due to this problem.
> > 
> > The DNS server being used by your system for lookups is having major 
> > problems.
> > You will need to do some serious debugging to find out why. Things to 
> > look for are DNS server overload, traffic congestion, lack of recursive 
> > queries, etc.
> > 
> > Amos
> > 
> >>  
> >> --------------------------------------------------------------------------
> >> Error Message: 
> >> The requested URL could not be retrieved.
> >> While trying to retrieve the URL: http://www.squidguard.org/Doc/install.html
> >> 
> >> The following error was encountered:
> >>     Unable to determine IP address from the host name for www.squidguard.org
> >> 
> >> The dnsserver returned:
> >>     Refused: The name server refuses to perform the specified operation.
> >> 
> >> This means that:
> >> The cache was not able to resolve the hostname presented in the URL.
> >> Check if the address is correct.
> >> -----------------------------------------------------------------------------
> >> 
> >> ~~~~~~~~~~~~~~~~~~~
> >> Thanks & Regards,
> >> Sameer Shinde.
> >> Sr. Customer Support Engineer,
> >> Email:- s2sameer@xxxxxxxxxxx
> >> M:- +91 98204 61580
> >> http://www.geocities.com/s9sameer
> >> If everyone is thinking alike, then somebody isn't thinking.
> >> 
> >> 
> >> 
> >> _________________________________________________________________
> >> Access your email online and on the go with Windows Live Hotmail.
> >> http://windowslive.com/Explore/Hotmail?ocid=TXT_TAGLM_WL_hotmail_acq_access_112008
> > 
> > 
> > -- 
> > Please be using
> >    Current Stable Squid 2.7.STABLE5 or 3.0.STABLE10
> >    Current Beta Squid 3.1.0.2
> 
> _________________________________________________________________
> Get more done, have more fun, and stay more connected with Windows Mobile®. 
> http://clk.atdmt.com/MRT/go/119642556/direct/01/


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