Security Services
When a system, or even a whole network is compromised, the first thing that the network adminstrator should do when he sees the message "Y0u h4v3d b33n h4x0r3D! l0l." is try to recover from whatever attacks the network may be under. This is where security services come in.
Security services may compose of any type of program or utility that is used to clean, or recover a network from a security attack. The most popular of which are the anti-virus and the firewall. The following are some of the most common security services you would find in a secure system.
Anti-Virus - is a program that scans the physical memory of a computer in an attempt to clean the infected computer of known viruses from a database, more commonly known as a virus signature database
Firewall - acts as a electronic "gate" for networks. Computers that are not physically from the same network are denied access to the network. Firewalls may come in the form of software or hardware, depending on the number of computers to be protected.
Most any network administrator needs to know how to recover from a bad situation, and when bad comes to worse, a cure is what is needed-- this is where security services come in handy.
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