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Back To Basics: Troubleshooting Proxy Server 2.0 -- Part 2 Page 4
SOCKS Proxy Problems
The SOCKS Proxy service is used to allow non-Windows clients access to the Internet via the Proxy Server. If you are running a Windows only environment, it would be best to completely ignore the SOCKS Proxy service. Better yet, disable the SOCKS Proxy. You can stop the SOCKS Proxy service via the Internet Services Manager interface, but when you restart the machine, it will just "grow back".
A better solution for eradicating the SOCKS Proxy service is to whack it via the Registry. The key is:
Change the value for SocksServiceEnabled to 0, and say goodbye to SOCKS.
If you must run the SOCKS Proxy Service, keep in mind that the default rule is to deny all connection requests. Access controls for the SOCKS Proxy are not integrated with the SAM or Active Directory as they are with the Web and WinSock Proxies. To control access, you identify source and destination port and IP addresses, as seen in the shot of the SOCKS configuration interface below.
It is best policy to deny all requests, and then create specific rules for those ports that you want accessible to the SOCKS Proxy clients. When configuring the rule, you must set the action (deny or permit), the source and destination IP addresses or network IDs, and the port number for the destination machine. To see the rules interface click HERE.
Check out Basic To Basics next week, when we'll go over the issue of using PING behind a Proxy Server and also how to configure your Proxy Server on a DMZ subnet.