Hi Mark;

Below is a bunch of information I got by doing a Google search with the 
search string of, define: proxy server.

Definitions of proxy server on the Web:

• In computer networks, a proxy server is a server (a computer system or an 
application program) that acts as an intermediary for requests from clients
seeking resources from other servers. ...
en.wikipedia.org/wiki/Proxy_server
• A hardware server that acts as an intermediary between a work station user 
and the Internet so that an enterprise can ensure security
en.wiktionary.org/wiki/proxy_server
• Server which purpose is to relay different requests and maintain a cache 
of answers. Its main functionalities are : caching, request logging, local 
network
security, filtering and anonymity
www.binarysec.com/cms/docs/resources/glossary/p-s.html
• An Internet server that controls client computers' access to the Internet. 
Using a proxy server, a company can stop employees from accessing 
undesirable
websites, improve performance by storing webpages locally, and hide the 
internal network's identity so monitoring is difficult for external users.
www.ffiec.gov/ffiecinfobase/booklets/e_banking/ebanking_04_appx_b_glossary.html
• A proxy server is a server or software that gives the appearance to our 
servers that an off-campus request is coming from a known on-campus IP 
address.
...
www.ambrosedigital.com/index.php
• sits between the network router and the Internet; talks to the Internet on 
behalf of a network's resources, allowing real network addresses to be 
hidden
jobsearchtech.about.com/od/techindustryresources/a/TechTermsPtTwo.htm
• A system that caches items from other servers to speed up access. On the 
Web, a proxy first attempts to find data locally, and if it's not there, 
fetches
it from the remote server where the data resides permanently. top of page
www.bbn.com/utility/glossary/p
• The proxy server allows you to sign on with your Loyola ID and access 
library resources from off campus.
libguides.luc.edu/glossary%20
• A proxy server is a process that acts like a switchboard through a 
firewall to manage the various types of permitted communications with the 
outside world.
Proxy servers may also use caching to make communications more efficient.
library.thinkquest.org/06aug/02257/glossery.html
• Server that caches Web content in order to provide quicker access for 
users, when new requests are made for the same content.
www.calgary-ecommerce-services.com/glossary.html
• A computer that verifies that an off campus user seeking access to 
restricted electronic resources is a current Boston University student, 
faculty, or
staff member. ...
www.bu.edu/library/instruction/gloss.html
• An organization's single point of entry to the internet. It typically 
provides NAT.
www.aami.org/resources/glossaries/itworld/Glossary-P.html
• Where a high level of security of required, a proxy Web server may be used 
to provide a gateway between a local area network and the Internet. The 
local
network is protected by firewall software installed on the proxy server. ...
www.acad.bg/beginner/gnrt/appendix/glossary.html
• A firewall component that manages Internet traffic to and from a local 
area network (LAN). A proxy server can improve performance by supplying 
frequently
requested data, such as a popular Web page, and can filter and discard 
requests that the owner does not consider appropriate, such as requests ...
canada.aol.com/ssc/help/Anti-Virus/glossary.htm
• Intercepts all messages entering and leaving the network. The proxy server 
effectively hides the true network addresses.
www.tekies.com/Glossary.htm

Pick the 1 that you want the most!  LOL

Hope this has helped.  Take care.
Mike



  ----- Original Message ----- 
  From: Mark Torgerson
  To: [email protected]
  Sent: Tuesday, December 14, 2010 10:45 AM
  Subject: [Blind-Computing] What is a Proxy server?


  Hi
       I am trying to set up the echo link software from echolink.org
       They say that if I want to use their software from multiple locations
  such as while I am traveling, that I should set up a proxy server. My
  question is, what is a proxy server and how do I go about setting it up?

  God bless,
  Mark

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