Options available in ssh
Note: Here instead of user and host add username and IP address you want to connect to. And localhost is IP of our local system.
| Options | Description | Syntax |
|---|---|---|
| -1 | Forces ssh to use protocol SSH-1 only. |
ssh -1 user@host
|
| -2 | Forces ssh to use protocol SSH-2 only. |
ssh -2 user@host
|
| -4 | Allows IPv4 addresses only. |
ssh -4 user@host
|
| -6 | Allows IPv6 addresses only. |
ssh -6 user@host
|
| -A | Authentication agent connection forwarding is enabled. |
ssh -A user@host
|
| -a | Authentication agent connection forwarding is disabled. |
ssh -a user@host
|
| -C | Compresses all data (including stdin, stdout, stderr, and data for forwarded X11 and TCP connections) for a faster transfer of data. |
ssh -C user@host
|
| -c | Selects the cipher specification for encrypting the session. Specific cipher algorithm will be selected only if both the client and the server support it. |
ssh -c aes256-cbc user@host
|
| -f | Requests ssh to go to background just before command execution. |
ssh -f user@host command
|
| -g | Allows remote hosts to connect to local forwarded ports. |
ssh -g -L 8080:localhost:80 user@host
|
| -n | Prevents reading from stdin. |
ssh -n user@host command
|
| -p | Port to connect to on the remote host. |
ssh -p 2222 user@host
|
| -q | Suppresses all errors and warnings |
ssh -q user@host
|
| -V | Display the version number. |
ssh -V
|
| -v | Verbose mode. It echoes everything it is doing while establishing a connection. It is very useful in the debugging of connection failures. |
ssh -v user@host
|
| -X | Enables X11 forwarding (GUI Forwarding). |
ssh -X user@host
|
How do I use SSH to connect to a remote server in Linux | ssh Command
Secure Shell, commonly known as SSH, is like a super-secure way to talk to faraway computers, called servers. It’s like a secret tunnel on the internet that keeps your conversations safe and private. Imagine you’re sending a letter, and instead of sending it openly, you put it in a magic envelope that only you and the person you’re sending it to can open. That’s what SSH does for your computer talks.
This article is here to help beginners, those who are just starting with this stuff, to understand how to use SSH. We’ll show you the steps to use a special command (think of it like a secret handshake) to connect your computer to a faraway server in the world of Linux. By the end of this guide, you’ll be more confident in using SSH to make your computer talks safe and secure when dealing with those remote servers.