Squid + M$ Isa Server

Добрый день

Ситуация такая : доступ в инет производится ч/3 M$ ISA Server, хочу настроить Squid так чтобы можно было через него ходить в инет с помощью ISA Server, пишу следующий squid.conf:

http_port 3128
dns_nameservers 10.244.5.11
visible_hostname megahost
cache_dir ufs c:/squid/var/cache 512 16 256
acl Query urlpath_regex cgi-bin \?
acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl PURGE method PURGE
acl to_localhost dst 127.0.0.1/8
acl SSL_ports port 443 563
acl Safe_ports port 80 21 443 563 70 210 210 1025-65535 280 488 591 777
acl CONNECT method CONNECT
acl localnetwork0 src 127.0.0.0/8
acl localnetwork1 src 10.244.18.0/24
acl localnetwork2 src 192.168.49.0/24
acl localnetwork3 src 192.168.73.0/24
hierarchy_stoplist cgi-bin ?
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
coredump_dir c:/squid/var/cache

cache_mem 64 MB
dns_testnames localhost
http_access allow manager localhost
http_access deny manager
http_access allow !Safe_ports
http_access allow CONNECT !SSL_ports
http_access allow PURGE localhost
http_access deny PURGE
http_access allow localnetwork0
http_access allow localnetwork1
http_access allow localnetwork2
http_access allow localnetwork3
no_cache deny QUERY
http_access allow all
http_reply_access allow all
icp_access allow all


Выдаёт следующее:

While trying to retrieve the URL: http://www.linux.org.ru/index.jsp

The following error was encountered:

Unable to determine IP address from host name for www.linux.org.ru
The dnsserver returned:

Name Error: The domain name does not exist.
This means that:

The cache was not able to resolve the hostname presented in the URL.
Check if the address is correct.


Не подскажете ли что я делаю неправильно и как это исправить?
Заранее благодарен за ответ