CNTLM issue with intranet (maybe DNS)

Posted by htorque on Server Fault See other posts from Server Fault or by htorque
Published on 2012-06-06T17:29:36Z Indexed on 2012/06/12 22:42 UTC
Read the original article Hit count: 456

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linux

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proxy

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intranet

On my Linux box I need to use an ISA proxy that requires authentication to reach the internet. I therefore installed CNTLM and configured it to point to the proxy address and listen on port 4321.

I then configured my GNOME distribution to use localhost:4321 as global proxy for HTTP and HTTPS.

The result: I can connect to the internet. I can ping intranet IPs, I do receive name resolution for intranet sites, yet I cannot ping them or open any intranet site in a browser (configured to use the distributions proxy) unless I use the site's IP address.

I tried blocking the intranet IP range in the CNTLM config file without luck.

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