CSCI 2467 Systems Programming Concepts: Frequently Asked Questions

Using the lab machines

• How do I log in?

  Whether you are in the lab or working remotely, you will log in using your UNO username and password.

• What if my password isn't working? or I can't connect via ssh

  If you have tried to log in via ssh and have typed an incorrect username or password more than 10 times, you will be temporarily blocked. This is important so that strangers on the internet cannot guess passwords. Make sure you are getting both username and password correct. After 10 minutes, the block will be lifted.

• How do I access my work from home?

  You can connect from anywhere using ssh to access your class files and continue to work on the labs. Anything you do from the terminal in the classroom should also work when connecting with ssh, and the files will be the same.

  On a system with a bash terminal (any Mac, any Linux, or Windows 10 Anniversary Update with bash), simply open the terminal and type the command:
  
  ssh USERNAME@systems-lab.cs.uno.edu

  Windows XP/7/8/10: If you don't have bash or ssh already, simply download PuTTY to install the small ssh client program.

  Here is what PuTTY looks like when you launch it:

  
  
  

  After you connect, PuTTY will ask you for username and password.

  If you are using the terminal on Mac, Linux, or bash (including git-bash, cygwin, or ubuntu) on Windows 10, you will type the ssh command like this (note the command typed on the top line):
  
  

  Note: The very first time you connect via ssh, you will be asked if you want to accept a key fingerprint (or continue connecting if the fingerprint is unknown). This is due to how ssh security works, and if you say "yes" the first time this should not come up again.