FTP clients Dedicated FTP clients are useful for managing files on remote servers, and uploading files. CUSeeMe is an application that provides slow-scan videoconferencing system over the Internet. IRC IRC is Internet Relay Chat. Users with IRC clients connect to IRC servers to take part in online CB-style chats with other users. A proxy server is a server which acts as an intermediary or relay agent between a workstation and a service on the Internet.
Web browsers send their requests to the proxy instead of directly to the source.
The proxy then fetches the object on their behalf, passes it to the client, and stores a copy in its local cache. Should a subsequent user request the same object, it will be returned directly from the cache. Caching proxies can save considerable amounts of bandwidth, and provide increased performance to users. Contents Firewalls Firewalls are typically used to isolate an internal company network from the Internet at large. A firewall system may also be configured as a proxy of some form, so that clients inside the network can still access Internet services by using the proxy, without being exposed to potential attacks from the outside, as the client is not directly reachable.