Several common solutions to the problem that the Linux server cannot log in

Nowadays, there are still many choices and uses of ECS, but some friends do not know much about the technical aspects of ECS, and they will panic if there is a panel failure or the Linux server cannot log in. Here, Lao Zuo sorts out several common solutions to the problem that Linux servers cannot log in.

1. Password account

We need to check whether the account password of the server is correct, including the port. At the same time, if some servers have specific security processing, such as requiring specific IP login and key login, you must find the appropriate login method.

2. Security Group Settings

If our ECS has many useful security groups, for example, we will set a non default 22 port instead of a fixed custom port. At the same time, we will also modify the user-defined user name instead of the root user name.

3. Server failure

If we find a server failure, we need to check whether the current server has a problem, such as being attacked or being overloaded, which makes it impossible to log in to the background.

4. Server Status

Some of our servers are shut down or suspended because of their own problems or the problems of the host company. We need to check the status of the service provider's panel server for arrearage, downtime, etc.

5. Network failure

We need to check whether there are network problems, such as whether the IP address is blocked or blocked, which makes it impossible to connect to the server.

In conclusion, if we find that the Linux server cannot be connected, we will check and solve the problem in the above aspects.