> > Dear Mariel, > > This is not happening about any particular site. This can happening with > any site > & in next 3-5mins time the same site/web page works properly. > Just a thought. Check that negative_ttl is set to 0 seconds (default when unset on older squid was 5 minutes which is suspiciously similar) and that negative_dns_ttl is at least 10 seconds (or unset for default). Also check that they are actually being generated by your own squid, your upstream ISP may be having trouble with an old transparent proxy. Amos > > ~~~~~~~~~~~~~~~~~~~ > 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 09:00:03 -0200 >> From: msebedio@xxxxxxxxxxxx >> To: s2sameer@xxxxxxxxxxx >> CC: squid3@xxxxxxxxxxxxx; squid-users@xxxxxxxxxxxxxxx >> Subject: Re: errors while opening sites >> >> Clear the cache, may be the source for your problem. I had this problem >> whit another URL and I had resolved doing this. >> >> Bye, Mariel >> >> 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/ >>> >>> >>> >> >> >> -- >> Lic. Mariel Sebedio >> Division Computos y Sistemas >> Tel (02944)-445400 int 2307 >> INVAP S.E. - www.invap.com.ar >> > > _________________________________________________________________ > Proud to be a PC? Show the world. Download the ?I?m a PC? Messenger > themepack now. > hthttp://clk.atdmt.com/MRT/go/119642558/direct/01/
