The latest version of Matlab, R2025b, is available. The software and license codes are directly available for Science accounts and can be requested by other entitled users by sending mail to the helpdesk. The software can also be found on the install-share. All C&CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2025a/bin/matlab) will be available temporarily. The C&CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures....

August 5th we had a cluster maintenance day, the next cluster maintenance window will be on February 6th 2026. We will do updates to packages and reboot the nodes. We plan to do this on all cnXXX nodes, mlpXX and comaXX nodes. We will not upgrade to a new version of ubuntu on this day, if you want your clusternodes to be upgraded, please arrange this seperately with us.

We have been working on replacing the old home servers home1 and home2 for some time now and a lot of our users have already been moved to the new home servers, home4, home5 and home6. If you login to dhz.science.ru.nl you can find your home volume path, for moved users this will look like \\306a2a9df234234123123523c22054dfaf9.home.science.ru.nl\loginname This path will not change in the future when we have to replace the home servers again....

The latest version of Matlab, R2025a, is available. The software and license codes are directly available for Science accounts and can be requested by other entitled users by sending mail to the helpdesk. The software can also be found on the install-share. All C&CZ-managed Linux machines have this version installed, the older version (/opt/matlab-R2024b/bin/matlab) will be available temporarily. The C&CZ-managed Windows machines will not receive a new version during the semester to prevent problems with version dependencies in current lectures....

Lilo7 was running ubuntu 20.04 LTS (LTS=Long term support). Since the LTS support period has ended for ubuntu 20.04, we have turned off lilo7 on June 2nd, because there are no (free) security updates anymore for this OS release. We will repurpose the hardware for other tasks for the faculty. We have a new lilo9 with Ubuntu 24.04 LTS. We will make this the new lilo on August 1st 2025. Lilo9 will remain available until end of May 2029....

A new version of Mathematica (14.2.1) has been installed on all C&CZ managed Linux systems, older versions can still be found in /vol/mathematica. When connected wired or wireless on campus or through VPN, the software for Windows, Linux and macOS can be found on the C&CZ Install disc. During the installation you must specify: License server: mathematica.science.ru.nl License: L4601-6478 According to the Mathematica Quick Revision History: “Version 14.2.1 includes critical updates for Chatbook and code captions along with other bug fixes and stability improvements....

The latest version of Maple, Maple2025, for Windows/macOS/Linux can be found on the Install network share and has been installed on C&CZ managed Linux computers. License codes can be requested from C&CZ helpdesk or postmaster.

We have updated the authentication process for login servers after a succesful test we announced in CPK#1383. As of now, your ~/.ssh/authorized_keys file on lilo is ignored!, instead you can send us your public ssh key (contents of the .pub file) to keep for your account. This change is designed to prevent bad actors from easily gaining persistent access. For convenience we have added the keys we have found in homedirectories that were added or modified after we restricted access to lilo, if your key is from before December 9th, you will need to send the public key to us....

A new version of Mathematica (14.2.0) has been installed on all C&CZ managed Linux systems, older versions can still be found in /vol/mathematica. When connected wired or wireless on campus or through VPN, the software for Windows, Linux and macOS can be found on the C&CZ Install disc. During the installation you must specify: License server: mathematica.science.ru.nl License: L4601-6478 According to the Mathematica Quick Revision History: “Version 14.2 introduces a powerful tool in Tabular, which provides a very streamlined and efficient way to handle tables of data laid out in rows and columns, with hundreds of other functions enhanced to make use of its special features....

Due to a phishing attack targeting science accounts, and the subsequent abuse of RU mail servers to sent out spam and phishing from valid science e-mail accounts, we were forced to employ a set of defensive measure as evident from cpk/1381, cpk/1382, cpk/1381. To prevent further abuse (and disruption) caused by compromised accounts, we have had to temporarily restrict access to some science services. These services include: Anything related to e-mail: Roundcube, authenticated SMTP, IMAP, and POP3....