SSH (Secure Shell) with Putty » Information Technology Services (2024)

FAQs

How to connect to shell using PuTTY SSH? ›

Double click putty on the Desktop. In the Host Name (or IP address) field, type the remote system you intend to connect to (smpserv.hku.hk in this example). Select SSH under connection type. In the Save Session field, type the remote system you intend to connect to (smpserv.hku.hk in this example).

What is the Secure Shell (SSH) protocol? The Secure Shell (SSH) protocol is a method for securely sending commands to a computer over an unsecured network. SSH uses cryptography to authenticate and encrypt connections between devices.

Start by opening PuTTy. Enter your hostname or IP address into the provided field and set the SSH port to 22. Next, click the Open button to open the command line window. In the command line window, type in the SSH username at the login as prompt and then press enter on your keyboard.

PuTTY is most commonly used: as a File Transfer Protocol PuTTY can connect to a remote machine through SSH. SSH (Secure shell) is a protocol that allows a secure connection.

How do I see who is connected to my SSH? ›

To list all connected SSH sessions, you can use the “who -a” command. The -a option shows all users, including those who are not logged in through the system console. The result will show your username, terminal, and login date and time.

It allows you to connect to remote computers or devices using various protocols such as secure socket shell (SSH), Telnet, login, and more. Putty is widely used by system administrators, network engineers, and developers for managing and controlling remote systems.

SSH, or Secure Shell, is a secure protocol for connecting to a remote server. To establish an SSH connection, you will need an SSH client app like PuTTY and credentials like the server's IP address, SSH port, SSH username, and SSH password.

A recently disclosed vulnerability in the popular SSH client PuTTY (versions 0.68 to 0.80) could allow attackers to recover private encryption keys, potentially enabling them to impersonate users and access sensitive systems.

For simple use, all you need to do is to enter the domain name or IP address of the host you want to connect to in the Host Name field and click Open (or press Enter). A domain name looks like students.example.edu . An IP address looks something like 78.99. 129.32 .

When you first open PuTTY, the Configuration window appears. On the Configuration window, click Serial. Type the COM port to which you want to connect and the Speed (Baud rate) you want to use. Optionally, click Save to save the session for a faster set-up the next time you use PuTTY.