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University Computing Service

Help & Support

Remote Access

It is possible to use a number of remote access MCS Linux servers via ssh, slogin, scp and sftp.

Currently there exist:

  • An sftp service which is run on a MCS Linux server which is accessible by sftp at the address sftp.pwf.cam.ac.uk
  • A general purpose service pilot service which is available at linux.pwf.cam.ac.uk. This is available to everyone with an MCS account, but is currently unsupported.
  • Dedicated servers purchased by institutions for use by users that they select. To date, two institutions have bought into the scheme: the Computer Laboratory and the Physics Department. Access to this type of systems is restricted by membership of a group.

All these remote access servers are powerful, dual-CPU PCs run in the UCS machine room which have the same image as the workstations except that the servers permit remote access.

Listing the group membership

To list the members of a group, run the command
$ pwfgroup list remotelinux.inst.depts.pwf

Access to the Computer Laboratory machine is restricted to membership of the group remotelinux.cl.depts.pwf and access to the Physics system by the group remotelinux.phy.depts.pwf.

Control over the membership of these groups is delegated to the institution in question. Do not apply to the Computing Service for membership. You should contact your course organiser, lecturer or director of studies if you think you have been left out of the group by accident.

Modifying the group membership

If you are one of the users membership control has been delegated to then you can add users alpha2, beta20 and gamma2 with the command:
$ pwfgroup add remotelinux.inst.depts.pwf alpha2 beta20 gamma2
and remove them with:
$ pwfgroup del remotelinux.inst.depts.pwf alpha2 beta20 gamma2