With the popularity and development of the Internet, people's lives have been inseparable from the Internet. Contact network refers to the process of people interacting and communicating in the network. The basic knowledge of catenary includes the following aspects.

The first is network security. Network security refers to a series of measures to protect personal information and property security in the network. In the process of contacting the Internet, you should pay attention to protecting your account password, don't disclose personal information at will, and don't trust strangers' information and links easily to avoid fraud and cyber attacks.

Followed by network etiquette. Network etiquette refers to some behavioral norms observed in the network. In the process of contact with the Internet, we should pay attention not to make inappropriate comments, not to maliciously attack others, not to send spam, and to maintain a good order of the network environment.

The third is network literacy. Network literacy refers to the ability to obtain and use information in the network. In the process of contacting the Internet, we should learn how to use search engines, how to judge the authenticity and credibility of information, and how to use network tools and applications to improve our network literacy.

The fourth is network culture. Network culture refers to a cultural phenomenon formed in the network. In the process of contact with the Internet, we should respect the network culture, not publish bad information and content, and maintain the healthy development of the network culture.

The fifth is the network law. Network law refers to the legal provisions applicable in the network. In the process of contact with the internet, we should abide by the laws of the internet and not engage in illegal and criminal activities to avoid being punished by law.

In a word, catenary has become an indispensable part of people's lives. We should learn how to use the network correctly, protect our own security and interests, and abide by network etiquette, improve network literacy, respect network culture and abide by network laws.