ssh flags

1. What is Flag in SSH?
2. What are the SSH options?
3. What is the H in SSH?
4. What is SSH and how do you use it?
5. Is SSH Secure?
6. How do I generate an SSH key?
7. What is the difference between SSH and telnet?
8. How do I find my SSH port?
9. How do I SSH into a machine?
10. What does SSH t do?
11. How do I ssh from command prompt?
12. What is %P Linux?

What is Flag in SSH?

This sets up a port forwarding such that connections to port 65432 on the system running the client get forwarded to db-001-management. ... This is useful for just forwarding ports. By default, a shell is started, this flag prevents that. -v Verbose mode. Causes ssh to print debugging messages about its progress.

What are the SSH options?

SSH command line options

• -1 Use protocol version 1 only.
• -2 Use protocol version 2 only.
• -4 Use IPv4 addresses only.
• -6 Use IPv6 addresses only.
• -A Enable forwarding of the authentication agent connection.
• -a Disable forwarding of the authentication agent connection.
• -C Use data compression.

What is the H in SSH?

%h is replaced by the home directory of the user being authenticated. This means the file will be /home/user/. ssh/authorized_keys .

What is SSH and how do you use it?

SSH or Secure Shell is a network communication protocol that enables two computers to communicate (c.f http or hypertext transfer protocol, which is the protocol used to transfer hypertext such as web pages) and share data.

Is SSH Secure?

SSH provides password or public-key based authentication and encrypts connections between two network endpoints. It is a secure alternative to legacy login protocols (such as telnet, rlogin) and insecure file transfer methods (such as FTP).

How do I generate an SSH key?

Windows (PuTTY SSH Client)

1. On your Windows workstation, go to Start > All Programs > PuTTY > PuTTYgen. The PuTTY Key Generator displays.
2. Click the Generate button and follow the instructions. ...
3. Click Save Private Key to save the private key to a file. ...
4. Close the PuTTY Key Generator.

What is the difference between SSH and telnet?

Telnet is the standard TCP/IP protocol for virtual terminal service, while SSH or Secure Shell is a program to log into another computer over a network to execute commands in a remote machine. Telnet transfers the data in plain text while in SSH data is sent in encrypted format via a secure channel. ...

How do I find my SSH port?

To check current port number being used by SSH, run the command below:

1. $ grep -i port /etc/ssh/sshd_config.
2. $ sudo nano /etc/ssh/sshd_config.
3. $ ssh -p <port_number> <username>@<ip_address>

How do I SSH into a machine?

How to setup SSH keys

1. Step 1: Generate SSH Keys. Open the terminal on your local machine. ...
2. Step 2: Name your SSH keys. ...
3. Step 3: Enter a passphrase (optional) ...
4. Step 4: Move the public key to the remote machine. ...
5. Step 5: Test your connection.

What does SSH t do?

ssh -t creates a pseudo terminal on the remote machine. This is useful if you are chaining ssh commands thru multiple servers and want a real terminal on the far side (so you could use 'vi' for example).

How do I ssh from command prompt?

How to start a SSH session from the command line

1. 1) Type the path to Putty.exe here.
2. 2) Then type the connection type you wish to use (i.e. -ssh, -telnet, -rlogin, -raw)
3. 3) Type the username...
4. 4) Then type '@' followed by the server IP address.
5. 5) Finally, type the port number to connect to, then press <Enter>

What is %P Linux?

42. -p is short for --parents - it creates the entire directory tree up to the given directory. E.g., suppose there are no directories in your current directory. If you execute: mkdir a/b/c. It will fail, since you do not have an a subdirectory.