Firewall Wizards mailing list archives
Re: Reverse proxy ??
From: Rui Pereira <ruiper () wave home com>
Date: Wed, 03 Nov 1999 06:28:48 +0100
Eric, Your definition of reverse proxy is NOT correct. What you refer to as reverse proxy below is, in fact, a caching proxy which pre-fetches the data to cache. From the MS Q196312 KB article (for want of a better source): "Reverse proxying is a feature ... that enables clients to send requests to a Web publishing server connected behind the Proxy Server computer. You can place your Web server behind the Proxy Server computer to publish to the World Wide Web without compromising the security of the Web server or its data. [The] Proxy Server "impersonates" a Web server to the outside world, while your Web server maintains access to internal network services." This is the 'reverse' of a caching proxy, where the Proxy Server would cache data from the Internet on behalf of users on an Intranet. With a reverse proxy, you hide access to an internal web server behind the proxy server. Users on the Internet would use the proxy server URL to access data on the internal web server via the proxy. They would not, however, know the actual location of the data. As far as they know, the data is being served by the proxy server. Regards Eric Toll wrote:
I feel no one has clearly said what a Reverse Proxy is. Proxy: is a entity which takes client requests, goes and gets it on the net and saves it to its disk, (in case anyone else wants the same item - caching) then serves it up to the client. (FTP, WWW, etc) Reverse Proxy: Gee wilickers I've got 200+ users going out to a large web site all the time. I know what to do, I'll cache the whole site and I'll tell the proxy server (on my users behalf) to go out and start copying the whole entire site at midnight, tell it not to expire for 4 days, and save all this info to the proxy servers disk array. Now when everyone starts hitting this particular site, the content is served up via high speed local net, instead of going out across the internet connection. Walter is right, I just thought I'd provide a real world example."Joe Ippolito" <joe () joesnet com> 10/31/99 09:33PM >>>which may actually be more than one web server behind your firewall acting in a round-robin mode? -----Original Message----- From: owner-firewall-wizards () lists nfr net [mailto:owner-firewall-wizards () lists nfr net]On Behalf Of Walter Boyd Sent: Saturday, October 30, 1999 3:02 AM To: firewall-wizards () nfr net Subject: Re: Reverse proxy ?? Reverse Proxy, sometimes referred to as Web Acceleration, is the capability of taking an address outside your firewall, mapping it to a web server inside the firewall, and performing transparent caching of the web servers' static content in the process. The DNS address for the web server is the proxy address outside the firewall. Walter Boyd http://www.certifiednets.com/Sandy Green <sand232 () yahoo com> 10/28/99 05:27PM >>>There was a quetion here in this list about MS Proxy server with one or two NIC cards. In that context it was highlighted that with one NIC card "reverse proxy" will not be possible. But can someone explain as to what is reverse proxy ? ===== __________________________________________________ Do You Yahoo!? Bid and sell for free at http://auctions.yahoo.com
-- Rui Pereira, CISSP, I.S.P. - ruiper () wave home com IBM Certified - AIX | ADSM | Firewall WaveFront Consulting Group Ltd Systems Management, Integration and Security Specialists
Current thread:
- RE: Reverse proxy ?? Joe Ippolito (Nov 01)
- <Possible follow-ups>
- Re: Reverse proxy ?? Steve Anich (Nov 01)
- Re: Reverse proxy ?? Steven Osman (Nov 01)
- RE: Reverse proxy ?? Robyn Bailey (Nov 01)
- RE: Reverse proxy ?? Eric Toll (Nov 02)
- RE: Reverse proxy ?? Rafi Sadowsky (Nov 04)
- Re: Reverse proxy ?? Rui Pereira (Nov 04)
- RE: Reverse proxy ?? Anton J Aylward (Nov 04)
- RE: Reverse proxy ?? Don Tuer (Nov 05)
- RE: Reverse proxy ?? dreamwvr (Nov 06)
- Re: Reverse proxy ?? Brad Van Orden (Nov 04)
- RE: Reverse proxy ?? Eric Toll (Nov 05)
- RE: Reverse proxy ?? fernando_montenegro (Nov 05)
- RE: Reverse proxy ?? Eric Toll (Nov 05)
- RE: Reverse proxy ?? Scott, Richard (Nov 05)
- RE: Reverse proxy ?? Marcus J. Ranum (Nov 05)
- RE: Reverse proxy ?? Eric Toll (Nov 08)