A Proxy is a software program that resides in-between a client computer and a server. All communication between the client and the server are routed through the proxy. The proxy software can reside either on a dedicated computer, sandwiched between the client and the server, or exist in the client computer itself. The proxy acts like a filter that sifts all communication that occurs between the client and the server.

An anonymous proxy, also referred to as an anonymous proxy server, allows a client to access a file, web page, or some other resources through a server which services the requests of the client through another remote server.

FTP (File Transfer Protocol) is an Internet protocol that allows users to exchange files, programs, etc. over the Internet and uploads them to a Web server or downloads them to their personal computer.

You need to know all about router redundancy strategies to become a CCNP, but there's an important server redundancy feature you need to know as well! Learn all about Server Load Balancing from Chris Bryant, CCIE #12933.

The VLAN Trunking Protocol seems simple enough, but it's full of details that can trip you up on the exam! Learn these details and pass the CCNA exam with Chris Bryant, CCIE #12933.

Virtual Private Network is a network within a network. This is very popular with businesses that have people working remotely. Basically what we have here is a utilization of the network already provided by the internet. The internet infrastructure can be used as the network for remote employees to access their corporate systems.

Anonymous surfing is browsing web sites privately. Anonymous surfing encompasses two different forms of privacy.

You keep appointments all day long, but there's one you must keep to earn your CCNA or CCNP. Learn about this vital detail from Chris Bryant, CCIE #12933.

Using SSH tunneling for securing MySQL connections

Configuring and testing PPP Callback is an important part of passing the Cisco CCNA and CCNP exams - but it's also important in production networks. Learn the "hows" and "whys" of PPP Callback from Chris Bryant, CCIE #12933.