Monday 9 January 2006: RESTRICTED ACCESS to the Technical Network

As of Monday 9 January 2006, Ethernet access from the general CERN network to the Technical Network (TN) will be restricted in order to improve security on the TN. As a result, all Ethernet communication between the General Purpose Network (GPN) and the TN will be filtered.

Only communication lines to the general IT services such as DNS, TP, NICE, DFS, AFS, Antivirus, Linux installation servers, License servers, OracleDB, TSM backup servers and dedicated AB and TS servers on the GPN will remain open.

Please make sure that all your devices are registered properly in the network database (LANDB): http://network.cern.ch/. You are encouraged to make proper use of the 'Tag' and 'Description' fields in order to identify your system later on.

If your system depends on special services on the GPN or is split between the GPN and the TN, e.g. consists of devices (PCs, PLCs, VME crates, webcams, etc.) connected to both the TN and the GPN, please contact the Technical-Network.Administrator@cern.ch . They will include them in the list of trusted services or set up temporary inclusion groups for those devices connected to the GPN. In the longer term, solutions for moving those devices to the TN will have to be discussed.

If you need access from the GPN to your system, Windows terminal servers have been installed. Please contact Pierre.Charrue@cern.ch (AB), Uwe.Epting@cern.ch (TS) or Soren.Poulsen@cern.ch (TS) in order to verify your needs.

If you need more information, please do not hesitate to contact the CNIC Users Exchange, Stefan.Lueders@cern.ch, or the CNIC network contact in IT/CS, Nils.Hoimyr@cern.ch.


The CNIC Users Exchange and IT/CS


by The CNIC Users Exchange and IT/CS