Application and implementation of SSH port forwarding in Linux SysOps
Abstract:
SSH (Secure Shell) is a secure remote login protocol designed to Protect the security of data transmission. In addition to regular remote login, SSH also has an important function - port forwarding. This article will introduce the application and implementation of SSH port forwarding in Linux SysOps and provide specific code examples.
The specific implementation steps are as follows:
1) Run the following command on the local host to establish an SSH connection, and map the 8888 port of the local host to the 80 port of the localhost of the remote host:
ssh -L 8888:localhost:80 user@remote_host
2) Run the following command on the remote host to start the web server:
sudo systemctl start apache2
3) Now, you can access the web on the local host by entering localhost:8888 in the browser on the remote host The server is gone.
The specific implementation steps are as follows:
1) Run the following command on the local host to establish an SSH connection, and map the 3306 port of the remote host to the 8888 port of the localhost of the local host:
ssh -R 8888:localhost:3306 user@remote_host
2) Now, the database service on the remote host can be accessed through localhost:8888 on the local host.
Conclusion:
SSH port forwarding is a very useful feature in Linux SysOps. It provides users with a safe and convenient way to access services on remote hosts. Through the introduction and specific code examples of this article, readers can further understand the application and implementation of SSH port forwarding, and use it flexibly in actual work. At the same time, in order to ensure security, we should also set up the SSH service carefully and follow relevant security best practices.
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