CMSC 433, Spring 2005 -- Linuxlab Information

CMSC 433, Spring 2005

Programming Language Technologies and Paradigms

Linuxlab Information

The CSIC Linuxlab

Course projects must run on the CSIC Linux Lab, 3107 CSIC.

You can connect to the linuxlab remotely via SSH.

When the Linuxlab Doesn't Work

If you are having trouble logging in to the linuxlab, look on the FAQ on the linuxlab web page and/or contact the course staff.

Occasionally you will try to log in to the linuxlab and you will get a message like

Could not chdir to home directory /afs/csic/users/jfoster: Permission denied
-bash: /afs/csic/users/jfoster/.bash_profile: Permission denied

If this happens to you, email us; it means there's a problem with kerberos on the linuxlab. Try this temporary fix in the mean time:

ssh to the linuxlab, getting the above error message (Note SSH Client under Windows does not work well if this happens; use PuTTY instead)
Run the ``csiclogin'' command and enter your password; this will fix your kerberos permissions temporarily
Type ``cd'' to change to your home directory, which you should now be able to access
Type ``source .cshrc'' (if you use csh) or ``source .bashrc'' (if you use bash) to read in your configuration files
Do your work as usual

Example:

$ ssh linuxlab.csic.umd.edu
...
Could not chdir to home directory /afs/csic/users/jfoster: Permission denied
-bash: /afs/csic/users/jfoster/.bash_profile: Permission denied
-bash-2.05b$ csiclogin
Password for jfoster@CSIC.UMD.EDU: 
-bash-2.05b$ cd
-bash-2.05b$ source .bashrc
[jfoster@churning jfoster]$