Local System Information
This page offers pointers to detail of how to use lab systems, how to get help, and so on.
Getting help and introductory documents
- An introduction to computing facilities is an on-line copy of the booklet new users are given.
- We also have a Frequently Asked Questions list.
- Web server information including on how to export personal web pages files to the WWW and restrict access to them using .htaccess files and Raven passwords.
- Information for, and about, new arrivals at the Computer Lab is a selection of information, both technical and general, for new arrivals at the Computer Laboratory. This information is intended for everyone, both visitors and longer-term residents. There is also information for the host of a visitor.
- Information for people leaving the Computer Lab, or moving into the Writing up/Hot Desk area.
- Equipment allocation and supported Operating Systems
- For users of Unix systems: Redhat (Fedora and CentOS) and Ubuntu Linux; general information, software installation, configuration, applications.
- Printing and scanning
- Mail in the Computer Laboratory gives broad coverage of the facilities available.
Communications and the network
- Request a network connection.
- The Computer Lab network. An overview of the lab networks, both physical and wireless.
- The means of access to Computer Lab Systems, and other security related issues.
- The one-time password system, that allows safe connection to lab unix systems in an environment that is not secure.
- Information about the File server and other file spaces.
- Disc usage and quota report (requires Raven).
- Users can boot a machine if it's off.
- Video Conferencing Facilities Specialist resourses, such as High performance computing, Data centre facilities, application servers, and videoconference facilities.
- Sys-admin news
15 Sep 2016
The UIS have recently made available reduced cost access to Business Dropbox available via normal purchasing means.
29 Aug 2016
Following a number of brute force password attacks against our Windows Terminal Server hosts these have now been restricted to only accept connections from clients within the University network. If you need to access them from outside that network then first connect using a VPN.
18 Jul 2016
The new Ubuntu 16.04
slogin-servservices do not accept the legacy ssh-dss (DSA) public key algorithm.
Any users having problems with their user ssh keys should try connecting to
-vswitch to check which key is used.
If it is
.dsa, please generate a new key and add it to
.ssh/authorized_keys, check that it works on
slogin-serv, then remove the old .dsa key and its
Remember never to copy the private key – it should only ever remain where it is generated.
7 Jul 2016
Subsequent to the move of slogin-serv to Ubuntu 14.04, another server has been added, which runs Ubuntu 16.04, accessible as slogin-new.cl.cam.ac.uk, which has been in service for a while now without any reported problems. It is now being added to the slogin-serv.cl.cam.ac.uk pool, so users may get Ubuntu 14.04 or 16.04. The hope is that it should not matter, and when we are confident that 16.04 is suitable, the pool will move to being just 16.04.
If you find something which requires 14.04, please connect to slogin-old.cl.cam.ac.uk and email the details to sys-admin
22 May 2016
The service name ‘
slogin-new.cl.cam.ac.uk‘ is used for the newest slogin pilot or service for the department (see Time Sharing Syetsms).
A new system is in development, so anyone wanting to use the previous ‘new’ server sandy should use
slogin-serv.cl.cam.ac.uk(using ssh user keys) or
sandy(using Kereberos). TGT server users should check their configuration files.