Odin: IS&T Core Linux Server

Odin

Odin has replaced Loki as the primary Linux server for IS&T programming classes as of 3/30/2020. Accounts are automatically generated for faculty and students that need to use the system.

* Note, Odin users are limited to 1GB of storage, 80 processes, and 100 minutes per job.
 

How to Login to Odin

1. Sign up for TrueYou Duo (if you haven't already) by following TrueYou Instructions
2. Install and connect to the VPN by following the instructions here

For more information or to download Duo, visit the link here.

1. If need be, download and install MobaXterm from here: http://mobaxterm.mobatek.net/download-home-edition.html
2. When installation is complete, open MobaXterm
3. Click Session in the upper left corner, then click SSH
4. In the Remote host field, type odin.unomaha.edu then press Enter
5. Enter your UNO NetID username and password to connect

1. If need be, download and install Putty from here: https://www.chiark.greenend.org.uk/~sgtatham/putty/
2. When installation is complete, open Putty
3. In the hostname field, type: odin.unomaha.edu then press Enter
4. Enter your UNO NetID username and password to connect

Connect from Mac or Linux
     From a terminal, type: ssh your-netid@odin.unomaha.edu
     Example: For the UNO NetID of janesmith the command would be:

ssh janesmith@odin.unomaha.edu

How to Get Your Files from Loki

All home directory files that you created on Loki are stored on a separate server named prog. To copy your files to your new home directory on Odin, please do to the following:

1. Login to odin.unomaha.edu using the instructions above
2. Run the command below with your NetID in place of 'your-netid' and enter your NetID password when prompted:

Example: For the UNO NetID of janesmith the command would be:

scp -r -p janesmith@prog.ist.unomaha.edu:/home/janesmith/* /home/janesmith

Web Pages

In the event that you need to create web pages for an assignment, you must store your files in your public_html folder. This folder is located directly inside of your home directory. No publish script is required.

Your webpages will be available from on-campus or from off-campus while connected to the VPN in the following format:

     http://odin.unomaha.edu/~your-netid/filename

If your website displays an Internal Server Error: Locate the file named .htaccess in your public_hmtl folder and delete it.


Software on Odin

• Apache
• Biopython
• emacs
• Git
• GNU C
• GNU C++
• LaTeX
• MySQL + MySQL Python
• NLTK + Tkinter, numpy, Matplotlib
• OpenJDK
• Perl
• PHP + php-mysql
• Python
• R
• sqlite3
• tcsh
• vim

To request software installs, email uno-ist-support@unomaha.edu.

GitHub

If you would like to use GitHub on Odin, there are guides for students and teachers at the links below.

https://github.com/UNO-IST-Support/GitHubClassroom_for_UNOStudents

https://github.com/UNO-IST-Support/GitHubClassroom_for_UNOTeachers

Database Information: MySQL

MySQL databases permissions are pre-provisioned. You'll need to create a database and name it the same as your UNO NetID username. Here are some the commands you'll need to use.

• To access MySQL on Odin, type: mysql then press Enter
• To create your database, type: CREATE DATABASE dbname; (use your NetID in place of dbname)
• To view existing MySQL databases type: SHOW DATABASES; then press Enter

File Backups

Snapshots of files in your home directory are taken every 15 minutes and stored for three months. You may access them from within your home directory using the following command:

     cd .snapshots

Once you are in the .snapshots directory, you'll see all the snapshot folders with are available. You may use the cd command to open each folder and retrieve any files you need.

We strongly encourage you to backup your files to multiple locations on a regular basis.