1. Backing up important data:

To maintain the security of the enterprise LAN, important data must be backed up first, so as to prevent the system from crashing and losing due to various software and hardware failures, virus attacks and hacker damage.

2. Using proxy gateway inside the network:

Using proxy gateway makes network packets not directly between internal and external networks.

Third, set up a firewall:

1. Choose an appropriate firewall

2. You can choose a Cisco 85 router

Information security precautions:

1. Make full use of the security measures provided by the network operating system. Take Windows as an example, register the user name and set the login password.

2. Strengthen the information confidentiality protection of the database. There are two forms of data organization in the network: file and database. The data in the form of file organization lacks the enjoyment of * * *, and now it has become the main form of network storage data. Because the operating system has no special security measures for the database, and the data of the database is stored in a readable form, the database security needs to adopt another method. For example, make full use of the password of Office documents to keep them confidential. ?

3. In view of the leakage channels of computers, their external devices and network components, such as electromagnetic leakage, illegal terminals, cable stealing, remanence effect of media, etc., corresponding security measures can be taken.

4. E-mail is the main way for enterprises to transmit information. Therefore, it is necessary to encrypt e-mail, and you can install tools such as net shield or handwritten digital signature onSign2.. ?