The data security of the server is a crucial topic. Data loss is a huge loss to the enterprise. After we purchase the server, we must do a good job in ensuring data security. Next, let's introduce how the Hong Kong server ensures data security?

1. Three backup files. Our regular backups usually keep the latest three backup files, too much data will take up too much space. Many automatic backup software have the function of automatically overwriting previous backups, so we should pay attention to setting and retain at least 3 backup points.

2. For the problem of backup methods, we must adopt at least two backup methods. The simplest is to mount an independent backup hard disk on the server for regular automatic backup. At the same time, we also need to download the backup data on the server to the local computer for backup. We can also upload to other storage spaces such as network disks to ensure that when one of the backup methods fails, we still have data available in another method. Of course, we must ensure the security of the account management for data backup and not disclose it to others.

3. Regarding off-site backup, when we do data backup, don't say that the backup data is stored in the same way in one region. If we back up the data online, try to choose off-site backup to avoid failure of one of the backup points. Off-site backup is mainly mentioned in cloud computing products. Cloud servers usually have local backup and off-site backup. Two-site backup can make data more secure.

In short, in order to ensure the security of the data, it is necessary to back up the data on a regular basis. Generally, the method of 3+2+1 should be adopted, that is, to keep 3 backup source files, two backup methods, and at least one remote backup.