If you can't login, please read the rest of this document first, and if things still aren't working, send mail to your TAs.
If you are having trouble logging in, please send mail to your instructor (hnn+@cs).
Q: What do I need to do before logging in for the very first
A: From your Andrew home directory on one of the Andrew Unix cluster machines (linux.andrew.cmu.edu or unix.andrew.cmu.edu), run the following one-time checkin script:
unix> /afs/cs/academic/class/15213-s04/bin/checkinImportant: Before you run this script, make sure you do not have any subdirectories in your Andrew home directory called15-213 or 213hw. If you do, rename them before running the checkin script.
Q: What does the checkin script do?
A: It creates two subdirectories in your Andrew home directory: 15-213 and 213hw.
The 15-213 directory contains the .kloginand .login files that will allow you to login from the fish machines. DO NOT DELETE ANYTHING IN THIS SUBDIRECTORY.
The 213hw directory contains secure subdirectories for each of the labs, with the permissions set so that only you can read the contents.
Remember, you only need to run the checkin script once, before your very first login to the fish machines.
Q: How do I log into one of these machines once I have run the
A: From your home directory on an Andrew Linux or Unix machine (e.g., linux.andrew or unix.andrew), if your Andrew login is bovik and you want to login to the fish machine called chum.cmcl.cs.cmu.edu, then login as follows:
unix> ssh -1 -l bovik@ANDREW.CMU.EDU chum.cmcl.cs.cmu.eduNotice that the uppercase 'ANDREW.CMU.EDU' is significant. That's -1 (dash one) followed by a -l (dash el). For some SSH clients you must explicitly specify -1 to request the SSH version 1 protocol. With some clients, you may be able to login without the -1:
[type your Andrew password to the prompt]
unix> ssh -l bovik@ANDREW.CMU.EDU chum.cmcl.cs.cmu.edu
[then type your Andrew password to the prompt]
Q: I did everything you said but I still can't login. Now what?
A: Here are the most common reasons students can't login:
unix> fs sa -dir ~ -acl system:anyuser l
unix> fs sa -dir ~/15-213 -acl system:anyuser rl
Intel engineers traditionally use the names of North American rivers as internal names for their processor projects. So it seems fitting that we, as denizens of the Intel cluster, name the machines after freshwater fish of North America.
Each node on the cluster runs Red Hat Linux 6.2 (Linux kernel 2.2.16) and consists of the following hardware: