Proxy servers fulfill the second main purpose of a VPN: to make your network connections appear as if they originate on the proxy server as opposed to your computer. For example, Northwestern University Library offers access to a wide range of electronic resources, including periodical indexes, electronic journals, electronic texts, and statistical and numeric databases.

Most electronic resources are licensed by The Library from companies in business for profit. The terms of the contracts with these companies stipulate that The Library allow only UC faculty, students and staff to use these materials. Consequently, when you are off campus you will not be able to access many of the online journals and databases that you could access while on campus, unless you use the Library proxy server or Virtual Private Network (VPN). See similar questions...

The proxy server provides access to most licensed resources. However, some programs do not work with the proxy server. These require VPN for off-campus use: ARTstor (Macintosh only), Luna Insight, MDL Crossfire Beilstein and Gmelin, SciFinder Scholar, the java client in UC Image Service, and the Connect function in EndNote. Another difference is that the proxy server requires a one-time change in your web browser settings, then prompts you when you need to log in. See similar questions...

What should I do if the old Proxy server is still set up (or I have another proxy server set up by my ISP or company?) See similar questions...

Apache version 1.1 and above comes with a proxy module. If compiled in, this will make Apache act as a caching-proxy server. See similar questions...

Opera allows you to specify a different proxy server to be used for each protocol. Each one can be configured or disabled independently, and any URL you wish to access directly whilst a proxy is enabled can be added to an Exceptions list. Connections to Gopher and WAIS services can only be made via a proxy server. See similar questions...

The solution here is to chain the proxies together. SpamBayes (sb_server) doesn't really care where in the chain it is, although some of the other proxies (often anti-virus software like Norton Anti-Virus or AVG) sometimes do. The easiest solution is to leave your other proxy set up exactly as it was before SpamBayes. Then look in your email client to see what port it is using (it'll probably be connecting to "localhost" or "127.0.0. See similar questions...

No. If you can bring up web pages and get your e-mail when using the cable modem, but cannot authenticate with your VPN server, it could be something with the VPN server. You will want to contact your employer for further details. No. The newest firmware version out for the SB4220 and SB5100 support a feature called NACO (Network Access Control Off). This feature allows the cable provider to easily determine if a cable modem isn't provisioned properly or has been disconnected due to non-payment. See similar questions...

There is no difference in the role or the functioning of these proxies. In fact they are in many cases the same machine. The only difference is that you do not have to enter specific network settings or any configuration for your HTTP traffic to be captured by a transparent proxy. Because they are built as part of the network architecture, all port 80 traffic must flow through them. See similar questions...

Oh boy, here we go. I'll refer you to a classic award-winning post by a brilliant young man. Search the shieldsup headers for a post by Chris Baker in the thread "webwasher (was Re: AD BLOCKER)." See similar questions...