Linux is mostly used in the server, and the server can not be like a PC in the office, they are placed in the IDC room, so I usually log on to the Linux system is through remote logins. In Linux, Telnet is implemented through the SSH service. The default SSH service turned on port 22, and when we finished installing the system, the service was installed and started. So we can remotely log on to the Linux system without any additional configuration. The SSH service configuration file is/etc/ssh/sshd_config and you can modify this profile to achieve the SSH service you want. For example, you can change the boot port to 36000.
If you are a Windows operating system, Linux remote logins need to install an additional terminal software on our machines. At present, more common terminal login software has SECURECRT, Putty, SSH Secure shell and so on, many friends like to use SECURECRT because its function is very powerful, and I like to use Putty, just because of its small and very beautiful color display. No matter which client software you use, the ultimate goal is to log on to a Linux server remotely. There are a lot of free versions of the software online that you can download and try to play. The following article describes how to use Putty to log on to a remote Linux server.
If you downloaded the putty, double-click Putty.exe and then pop up the following window. The author uses Putty for English version, if you think the English use awkward, you can download a Chinese version of.
Because it is a remote login, the server you are logging on to must have an IP or host name. In the box below host Name (or IP address), enter the remote server IP that you want to log on to (if your Linux does not yet have an IP, set an IP yourself, how to set it to a later section), and then enter.
At this point, we are prompted to enter the username to log in.
Enter root and then enter the password, then you can log on to the remote Linux system.