network security essentials applications and standards

commandThe function of the host command is basically the same as Nslookup. The root hostname queries the host's IP address or queries the hostname based on the host IP address.Usage: host [options] [IP address/domain name/host name]Common parameters are-a: Displays information about the domain name or IP address, domain name, or hostname you are looking for.6.finger commandThe function of the finger command is to query the user for information.Parameters:-L: Multi-line display-S: Single-line di

FireWall for network security products) Firewalls were the first to adopt Internet security protection products. However, during the application process, it is found that firewall products based on network port protection and packet filtering protection technology cannot effectively intercept application

With the development of network technology, wireless network security has become more and more important. From what perspectives should we set up? Next we will introduce it to you. Why should I disable the network line for wireless network application

Why do we need to close the network line?The key to ensuring the security of wireless access points is to prohibit unauthorized users from accessing the network. That is to say, a secure access point is disabled for unauthorized users. Ensuring the security of wireless networks is much more difficult than ensuring the

This is my PPT on cryptographic applications in network security. This paper systematically discusses the application of cryptography in network security, puts forward 15 types of actual network communication problems, and analyze