LDMSCON2021 LOGIN

LINUX Users

1. Place the key files (e.g. user64_id_rsa and user64_id_rsa.pub) into the ~/.ssh/ directory.

2. Add the following entries to ~/.ssh/config

Host ldmscon2021
    Hostname ogc.us
    Port 65422
    User user64  # <-------------------------- Change to the assigned username
    IdentityFile ~/.ssh/user64_id_rsa  # <---- Change to the assigned key file
    IdentitiesOnly yes

3. ssh:

$ ssh ldmscon2021

[sshd:] (git-branch: --)
user64@headnode ~
$

WINDOWS Users

For Installed/Pre-existing Linux Applications

1. Start a Linux application (ex: MobaXterm) session.
2. Create an .ssh directory
   • $mkdir ~/.ssh
3. Copy downloaded keys from Windows Downloads to Linux (e.g. MobaXterm) session (in ~/.ssh/)
   • $cp C:/Users/<username>/Downloads/user<#>_id_rsa ~/.ssh/
   • $cp C:/Users/<username>/Downloads/user<#>_id_rsa.pub ~/.ssh/
4. Created the following “config” file in ~/.ssh/

Host ldmscon2021
    Hostname ogc.us
    Port 65422
    User user<#>  # <-------------------------- Change to the assigned username
    IdentityFile ~/.ssh/user<#>_id_rsa  # <---- Change to the assigned key file
    IdentitiesOnly yes

5. ssh:

$ ssh ldmscon2021

[sshd:] (git-branch: --)
user64@headnode ~
$

For Windows CMD

1. Create a folder called ".ssh" in C:\Users\<username>\ with file explorer
2. Download the keys user<#>_id_rsa and user<#>_id_rsa.pub
3. Copy keys from C:\Users\<username>\Downloads\ to C:\Users\<username>\.ssh
4. Create a new file called config (no extension) in C:\Users\<username>\.ssh with the following:

Host ldmscon2021
    Hostname ogc.us
    Port 65422
    User user64  # <-------------------------- Change to the assigned username
    IdentityFile ~/.ssh/user64_id_rsa  # <---- Change to the assigned key file 
    IdentitiesOnly yes

• NOTE: Must remove # comments for config to work.

5. Open Windows Command Prompt (i.e. cmd)
6. ssh:

C:\Users\<username>\> ssh ldmscon2021

[sshd:] (git-branch: --)
user64@headnode ~
$

Additional Container Information

Copying off the Tutorial Scripts

1. In your assigned container, ssh will cause you to land on your node.
2. Typing 'exit' will land you on the head node in your directory.
3. You can tar up your home directory (with the exercise scripts) and scp to the outside world from the head node.