SSH Command Examples

Secure shell (ssh) is cryptographic network protocol used for an encrypted connections between a client and a server.

SSH syntax

The most used ssh command

The first time you connect to the server, you'll see something like

This is an onetime question. Answer (yes) to add the key to your know hosts file then you will see something like

SSH Examples

User name can be specified with the -l option

The default port for ssh is 22, to connect to a different port

For connections issues pass the -v option to print debugging

Config File

The config file is very useful when you connect to a bunch of server, create the file in ~/.ssh/config

To connect to a host

Port Forwarding

To create a local port pass the -L option

Example

No password

Public Key Authentication

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