Java and FTP Problems with Proxy
Posted on 2007-08-10
We just deployed a WebWasher proxy/url filter in our environment. The proxy provides the only path to the internet; the default route otherwise is an MPLS cloud which contains no entry into the internet. Users connect to the proxy via a very simple proxy.pac file that points specific source IP addresses to the proxy server. We are having the following issues with 95% of the users that use the proxy/proxy pac:
1.) Java applets do not function
2.) FTP is not available
The remaining 5% of users are able to user java and ftp.
When I run a packet capture against a PC that fails (during an FTP download and the opening of a java applet), I clearly see that the PC goes directly out to the internet, bypassing the proxy altogether (which, as I stated above, will not work because of routing).
Anyone have any ideas on this? To me, it sounds like a desktop issue, but I can't identify what is causing it.
Note: Computers are all Windows XP. I vefied that java setting are set to "use browser settings."