network internet security specialist

A network security specialist, or a computer security specialist, is a kind of computer administrator that specializes in protecting a company's data and other information. Network security specialists build firewalls, install anti-virus software on servers and computers within a network, and monitor networks for breaches in security. Individuals in computer careers such as this that specialize in one kind of systems maintenance usually work for large companies or organizations with particularly sensitive data, such as investment firms, insurance companies and government agencies.

The network security field is quickly growing right now as more businesses and individuals are storing sensitive data electronically. In addition to the technical roles of this position, a network security specialist often provides training to general staff regarding security issues, and he may develop related company policies such as security matters related to accessing company information using a smart phone, a mobile laptop, or home computer and transmitting information using a thumb drive or an external online data storage service. Often a network security specialist will help facilitate authorized mobile access of company information so that proper security measures can be in place.

network internet security

TCP/IP can be made secure with the help of cryptographic methods and protocols that have been developed for securing communications on the Internet. These protocols include SSL and TLS for web traffic, PGP for email, and IPsec for the network layer security.

This protocol is designed to protect communication in a secure manner using TCP/IP. It is a set of security extensions developed by IETF, and it provides security and authentication at the IP layer by using cryptography. To protect the content, the data is transformed using encryption techniques. There are two main types of transformation that form the basis of IPsec: the Authentication Header (AH) and Encapsulating Security Payload (ESP). These two protocols provide data integrity, data origin authentication, and anti-replay service. These protocols can be used alone or in combination to provide the desired set of security services for the Internet Protocol (IP) layer.