Linux Systems: Chapter 2: Remote For Linux Systems

1 according to? Why remote access?

There are two ways for people to talk to each other. One is to talk directly in person, and the other is on the phone.

We also have two ways to operate Linux, one is directly on the Linux machine (similar to a face-to-face conversation between people), and the other is through the client remote operation (similar to a phone call).

Linux is usually used as a server. In the production environment, operations are performed on the local server only when certain faults (such as changing the root password) are rectified. Most of the time, remote connections are made using client tools.

2 SSH — Linux remote access protocol support. SSH is a short form of Secure Shell.

By using SSH, you can encrypt all transmitted data, making man-in-the-middle attacks impossible, as well as preventing DNS spoofing and IP spoofing.

With SSH, an added benefit is that the data being transferred is compressed, so it speeds up the transfer.

SSH has many features, both as a replacement for Telnet and as a secure “channel” for FTP, Pop, and even PPP. The remote login function in Linux is implemented through the SSH service. The default SSH port number is 22. On Windows, Linux remote login clients include SecureCRT, Putty, SSH Secure Shell, and XShell.

3 Preparations 3.1 Checking the IP Address Windows: ipconfig Linux: ifconfig 3.2 Checking whether the Network is connected Ping the IP address 3.3 Checking the SSHD Service status on the Linux server

Windows clients can use SSH to access Linux only when the SSHD service is running on Linux.

Just like if we use SQLyog or Navicat as the client to access MySQL server, essentially accessing MySQL service is the same. Run the systemctl status SSHD command to check whether the SSHD service is running.

4.1 Remotely Running the Linux Command SecurefxPortable. exe 4.2 Uploading and Downloading securefXportable. exe Based on FTP

4.3 Installation Process

The SSH_Client directory must be in a non-Chinese directory without Spaces. You don’t have to unzip it, you don’t have to install it, you just open it, both.