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Category: centos

CentOS, Ubuntu, Debian three linux similarities and differences

Linux has a large number of distributions, which are broadly divided into commercial versions maintained by commercial companies and free distributions maintained by the open source community. The commercial version is represented by Redhat, and the open source community version is represented by debian. These versions have different characteristics and play different roles in different application areas and cannot be generalized. Most VPSs only provide distributions maintained by the open source community. Here’s a quick […]

IPsec ( Security Architecture for IP )

◆ What is IPsec?   IPsec,Encryption systemUsed to protect the security of data at the network layer by the technology It is a protocol to be done. IPsec consists of protocols such as AH, ESP, and IKE. This IPsec By using the VPN connection we can communicate safely even in the public infrastructure such as the Internet. ◆IPsec works layer Since IPsec operates at the network layer, whether it is TCP or UDP at the […]