are you running DNS on the same box as squid or on the LAN? create a list of domain names, like 20-25 in a file like names.lst and run dig -f names.lst - gives you an idea how well DNS is working. > Sometimes everything works fine but, sometimes the system is extremely > slow and I get the following error on browser: > > The requested URL could not be retrieved > > While trying to retrieve the URL: > http://us.mc625.mail.yahoo.com/mc/showFolder;_ylt=ArsEohpYUGGoVGGsFGqujqJjk70X? > > > The following error was encountered: > > Unable to determine IP address from host name for > us.mc625.mail.yahoo.com > 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. > Your cache administrator is wh@xxxxxxxxxx > Generated Thu, 20 Nov 2008 01:07:31 GMT by localhost (squid/3.0.PRE5) > ------ > > I added my dns servers to the squid.conf with the dns_nameservers .... > > > >
