This server provides web-based online submission facilities for several department courses. If you are interested in learning more about this system or using it for your course, contact Jeff Vinocur. For technical crises you may wish to also contact Nathan Lutchansky.
You probably mean to be at the CS 312 website. On the other hand, maybe you mean to be at the CS 312 online submission page.
You might also want the CS 411 webpage or submission page.
For CS 100m, consider online for submissions for projects or exercises.
Or just visit the Computer Science Department (at Cornell University) and see what you can find.