Tip & How-To about Computers & Internet
Viruses, worms, bacteria, rabbits, etc. are the different types of unwanted programs that infect computers and cause obstruction in normal operation. To avoid this and to protect your computer against infection and to ensure proper operation, install good antivirus software to detect viruses and remove or repair the damaged files virus. Software acts as a gateway firewall; the firewall is four different types. The gateway packet filtering, circuit gateway and proxy server level.The firewall is the firewall packet filters most basic. Packet filtering firewall filters incoming and outgoing packets of the machine based on user configuration. For example, the package contains information on the package. So if the user has blocked a port number or IP address of all packets from that port number or IP address will be removed. A firewall in the safety circuit when recording with TCP or UDP protocol is established between the host and network. At the level of the application firewall works at the application level. A proxy server is a type of relay server.The proxy server forwards this request to a server which in turn looks for the IP address and sends the appropriate proxy server. A proxy acts as a firewall between the machine and the network. You can adjust the proxy settings for their own purposes. And 'one of the most powerful desktop security mechanisms available for security. In addition, the firewall provides the security system can also be used to guide the installation of backup software. For a LAN or network packet's internal filter can be ideal. external networks, application gateways and proxy servers are a must. Prevents unwanted packets of data and content. So if safety is a concern not forget to install the latest firewall software keeps your computer from viruses and fully functional.
Posted by gfxcasa on
A computer virus is a computer program that can copy itself and infect a computer. The term "virus" is also commonly but erroneously used to refer to other types of malware, including but not limited to adware and spyware programs that do not have the reproductive ability. A true virus can spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance because a user sent it over a network or the Internet, or carried it on a removable medium such as a floppy disk, CD, DVD, or USB drive.
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