Squid Cache
Squid Cache is a web caching daemon and a proxy
server. It is free software that is governed by the GNU General Public
License. It caches repeated requests, caches DNS, net and other network
look-ups in order to enhance security by filtering traffic. It
essentially runs on UNIX-like systems. It is popularly considered
robust and complete. It is designed for HTTP and FTP but other
protocols like SSL, TLS, HTTPS, and Internet Gopher also work well with
Squid. Squid works as a web proxy and a reverse proxy server. It helps
making connections anonymous by modifying or disabling the header
fields in the HTTP request of the client. As a reverse proxy server
Squid caches requests from unlimited clients from a single web server.
HTTP Tunnel
This
is a program using which application data is masked as HTTP in order to
bypass firewalls. All outgoing traffic is routed through port 80. Port
80 is the standard HTTP port. The traffic is then encapsulated in HTTP
packets. HTTP traffic is allowed to go through most firewalls hence the
applications can communicate with remote hosts. Transfer security is
maintained by data encryption. SOCKS protocol must have been
implemented in order to use HTTP Tunnel. Peer-to-peer clients, instant
messages and web browsers can use HTTP Tunnel. The tunnel is maintained
by mediator servers.
Apache HTTP Server
It is a web server
that is implemented in UNIX-like systems, Novell NetWare, Microsoft
Windows as well as other operating systems. It can be configured to act
as a proxy server.
It is an Integrated Gateway
Management System. It works on Microsoft Windows and provides Firewall
and NAT. It consists of multiple integrated proxy servers. Internet
access is provided at three levels:
1 Firewall with NAT at the packet level
2 Proxies at the circuit level
3 Multiple proxy servers
It
features a WWW Proxy that allows easy administration as the proxy is
transparent. The problem with the proxy was that it had a default
configuration that was insecure. It allowed third party traffic through
the server.CLICK TO DOWNLOAD
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