CSEL: The Computer Science Education Lab
The CSEL is located in ECCS 112 and ECCS 128. Your Buff OneCard is requred for access to the lab. Faculty, staff, and students (either in the CS department or enrolled in a CSCI course should have access to the CSEL resources.
Please email firstname.lastname@example.org for help, questions, or comments.
NB: All general purpose machines (PCs and remote access) use NFS
home directories, so your data is persistent and shared across all of
the CSEL systems. If you are running an IO-bound job, consider using the
shared scratch space mounted on
NB 2: Please do not assume any serious security for these home directories
and do not store any confidential info there.
PCs in the lab
The are a number of PCs available for academic use. The current specs are:
- Intel Core i7-2600 Quad Core 3.4 GHz
- AMD Radeon HD 6670 GPU (Northern Islands)
- 16 GB RAM
The current, available PXE images are:
- Ubuntu 16.04.x amd64
- Ubuntu 14.04.x amd64 (deprecated)
If you need a custom image for special settings, preferred Linux distribution, etc, please send us an email.
nVidia ``Graphics'' Machine
In ECCS 128 there is a special machine which can be used by anyone but students in the graphics classes have priority. This machine has:
- Intel Core i7-4771 (Haswell) Quad Core 3.5 GHz
- nVidia GeForce GTX 780, 3GB GDDR5
- 32 GB RAM
- Samsung 840 Pro SSD (for
- Dell 2560x1440 Monitor
You may access the lab remotely via SSH (SCP, SFTP) using your IdentiKey and password. The current remote access machines are:
- elra-01.cs.colorado.edu - Ubuntu 16.04.x amd64
- elra-02.cs.colorado.edu - Ubuntu 16.04.x amd64
- elra-03.cs.colorado.edu - Ubuntu 16.04.x amd64
- elra-04.cs.colorado.edu - Ubuntu 16.04.x amd64
As with the workstation images, please email us if you need a custom image for a class, student project, etc.
You can get access to the campus (and CSEL) networks using OIT provided VPN
There's a printer in the lab. Feel free to print. Don't waste paper.
You have a student website hosted at
site can be located under either
~/.www. If you are
having trouble, make sure the web server has permission to read this
$ chmod o+x ~ $ chmod o+rx ~/.www
NOTE: THIS IS NEW AND EXPERIMENTAL. EVERYTHING IS SUBJECT TO CHANGE AND YOUR DATA MAY NEED TO BE PURGED!
There is a mariadb (mysql fork) server located at
username and password to access this database are your identikey and
password (as with all of the CSEL services). You have one database,
named after your identikey, which is created when you log in if it
doesn't already exist. All access to this DB must be over TLS.
$ mysql -h sql.csel.io -u$IDENTIKEY -p --ssl $IDENTIKEY
In addition, phpMyAdmin is available at https://sql.csel.io.
In addition to the typical software available on the CSEL systems, the PCs and remote access servers also have MATLAB installed.
We also have the following academic licenses:
- VMWare: [Discontinued]
By default, your password for CS Department education systems is your identikey password. This password is stored by OIT and is the same password that you use to access your email, mycuinfo, etc. Hence, if you are having password problems in the lab test against one of those systems.
You can change your password using the
csel-passwd tool on the
desktops on campus or the elras.
usage: csel-passwd set|reset|test [IDENTIKEY] This tool is for changing your CSEL password. If not specified, IDENTIKEY defaults to your current username ($USER). set Set a local CSEL password (will not reflect elsewhere on campus) reset Reset back to campus identikey password test Test your current password
For example, to change to a local password
$ csel-passwd set
To go back to the default and defer to your identikey password
$ csel-passwd reset