Weetile's RHUL resources

Linux CIM

SSH Alias

You can easily create an SSH alias to make it easier and more convenient to connect to the Linux servers. 👎 Normally, you'd authenticate to the Linux servers as such:

ssh USERNAME@linux.cim.rhul.ac.uk

👍🌟 By creating an SSH alias, all you have to type in is this:

ssh rhul

To do this, you'll need to modify your ssh config. (~/./ssh/config) Make sure to create it doesn't exist, then append the following to the file, replacing USERNAME with your RHUL username (e.g: ZLAT262 or similar)

Host rhul  
    User zlac218  
    HostName linux.cim.rhul.ac.uk

That's it! You can now access the Linux server by just typing in ssh rhul ✨ Want to be able to login without typing in your password everytime? See the next section 😜

SSH Authentication

Using SSH public key authentication is more secure and more importantly -- means you don't have to type in your password everytime you authenticate to the CIM servers! To generate a new SSH keypair, you can run the following command on Linux: ssh-keygen Once you have your keypair saved, you can upload it to the Linux servers using the following command, replacing USERNAME with your username:

ssh-copy-id USERNAME@linux.cim.rhul.ac.uk

You can confirm the SSH key has been added by authenticating to the server. If it doesn't ask you for your password, it's all set!

Accessing Linux server off-campus in the evening

The RHUL Linux machines aren't able to be accessed off-campus in the evening due to security reasons. To circumvent this, you can connect to the RHUL VPN by following this guide.