What are network security protocols?

network security logs are used to protect computer data and communication in transit. Cryptography is the primary tool used to protect information when browsing on the network. Cryptography uses algorithms to encrypt data so that unauthorized users are not readable. Cryptography generally works with a set of procedures or protocols that manage data exchange between devices and networks. Together, these cryptographic protocols increase secure data transfer. Secure communication is essential because attackers try to eavesdrop on communication, edit messages in transit and kidnapping between systems. Some of the security protocols with task networks are commonly used for protection, file transfers, web communication and virtual private networks (VPN). The problem with FTP is that the files are sent in Cleartext, which means that they are sent unencrypted and can therefore be endangered. For example, many webmasters update their pages using FTP; An attacker using sniffer packets and IP addressThe site can capture all communication between Webmaster and server website.

As an alternative file transfer protocol (SFTP) offers a more safer way of transmission of files. SFTP is usually built on Secure Shell (SSH) and is able to encrypt data and data transmission over the network, reducing the likelihood of attack attacks. The SSH cryptographic protocol is also resistant to sticker attacks because the client and the server are verified using digital certificates.

In addition to SSH SSH, layer/transport layer security (SSL/TLS) can be ensured as a basic SFTP protocol. As SSH, SSL/TLS Authenticates identity of the server and client and also encrypt communication between them. In addition to securing SFTP files, SSL/TLS is used to ensure e-mail communication.

SSL is also used in combination with the Hypertext Transfer Protocol (http) protocol to encrypt communication between the browser and the webHTTP server via Secure Sockets Layer (HTTPS). HTTPS encrypts communication and verifies the web server identity. When performing private transactions over the Internet, such as online banking, it is generally a person to check the address of the browser address to make sure that the website address starts https: // and not only http: //.

Another area where the cryptographic network protocols play an important role, especially for modern enterprises, is the replacement of documents between private networks over public connection to the Internet. These so -called virtual private networks (VPN) are decisive for business because they safely connect distant workers and offices around the world. Some commonly used network security protocols that are used to facilitate VPN are the tunneling protocol Point-to-Point (PPTP), Layer 2 (L2TP) tunneling protocol, IP (IPSEC) and SSH. These network security protocols not only create a safe connection but also significantly reduce the costs of joiningWith the creation of an alternative solution such as creating or leasing lines to create a private network.