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This article introduces how to do SSH remote login in CentOS7 server, the content is very detailed, interested friends can use it for reference, hope to be helpful to you.

Many hacker software will automatically scan an important default port and try to log in if it is found to be open. You usually try to log in using your root account. If you happen to use a weak password, the server can be easily compromised.

Therefore, the port is generally modified to between 1024 and 65535 and cannot conflict with other ports in use. And disable root remote login, log in with a normal account, then switch to the root user, or use the sudo command.

Add new ordinary users

Useradd foo / / create user passwd foo / / change password

Give ROOT permissions to ordinary users

Vim / etc/sudoers

Add the following code

Root ALL= (ALL) ALL / / original code foo ALL= (ALL) ALL / / add code

The remote login port defaults to 22.

Vim / etc/ssh/sshd_config

Modify

# Port 22Port 34567 / / modify port number PermitRootLogin no / / prohibit root users from logging in

Restart ssh

Systemctl restart sshd on the CentOS7 server on how to do SSH remote login to share here, I hope that the above content can be of some help to you, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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