Author Archive

new ISG staff member

Tuesday, September 22nd, 2020

It is my pleasure to welcome Stephan Müller into our group. He joins us to replace Christian Schneider in the Linux team.

Welcome Stephan!

Hardware failure on mail server

Thursday, August 27th, 2020

Update 09:45: the mail server could be recovered. It'll take some time for all queued incoming mail to be delivered.

Early this morning, a RAID controller in the D-PHYS mail server died. We're trying to get replacement parts later today. In the meantime, there's no access to email.
We apologize for the inconvenience.

New backup service (beta)

Friday, July 10th, 2020

TL;DR we have a new backup solution mainly for laptops that frequently leave campus and are looking for testers.

Among the many things we had to learn during the Corona-induced home office stint, one particularly interesting one was: which of our services do work from outside the ETH network, and which do not. I'd like to believe we fared rather well in general, but one glaring counter-example is our BackupPC service for lab and laptop computers. It relies on the client machine having a .dhcp.phys.ethz.ch host name, which only works on wired campus connections. We understand this meant missing backups for those of you who had to take machines off-campus.

In order to be prepared for a second wave, we've partnered up with our colleagues of isginf to provide a lab/laptop backup system that works with whatever network connection you have available. It's based on the tried and tested Open Source restic backup solution that runs on Windows, Linux and macOS clients.

At the current stage we're looking for early beta testers. Since lab computers are typically still in the lab and continue to work fine with BackupPC, laptop users are currently most interesting for us. So if you'd like to test out our road-warrior compatible backup solution, please get in touch. Be aware that this service still has some rough edges, but we'll walk you through all necessary steps and the backup runs themselves have been working fine for weeks now.

Corona and ISG

Thursday, March 12th, 2020

ISG is working from home. We will not be able to pick up the phone. If you have any helpdesk request, please use isg@phys.ethz.ch

As ETH and D-PHYS are working hard on every level to prepare for all conceivable situations related to Covid-19, also here at ISG we are trying to deal with the situation as it evolves. Some information from our side:

  • we're currently dealing with a great number of requests. Please bear with us if reaction time is somewhat longer than usual
  • please always send requests to isg@phys.ethz.ch and not to individual people (fun fact: this also applies in non-Corona times!)
  • we have created a readme page that helps you prepare for home office
  • there is a D-PHYS internal wiki for easy sharing of information
  • please don't take your managed Windows or Linux workstation home. It won't work.
  • if you feel that you need some IT assistance or major changes to your setup, please get in touch with us at an early stage
  • we have taken precautions to be able to maintain D-PHYS IT Services and ISG Helpdesk even if we were being requested to stay home

new ISG staff member

Friday, February 7th, 2020

It is my pleasure to welcome Maciej Bonin into our group. He joins us to replace Patrick Schmid in the Linux team.

Welcome Maciej!

2019 in review

Friday, December 13th, 2019

This post is meant to give you a short overview of what has been accomplished in D-PHYS IT by ISG this year. We’ve been hard at work to further improve and extend our services for you, our customers. Some highlights of 2019:

  • Ansible deployment: while we had already started to deploy servers using ansible as early as 2015, it was in 2019 that we consolidated and migrated almost all server configuration to this system and now have a common base for the D-PHYS server infrastructure.
  • Storage server separation: in the past years a constant growth in both volume and bandwidth of our SAN storage system caused occasional performance issues for some users. To alleviate this, we split our single SAN frontend file server into 4 individual machines (D-PHYS general, IPA, IGP and galaxy) in order to distribute the load.
  • New web server: at the end of 2018 we purchased a new D-PHYS web server to replace the previous 10-year-old system. In 2019 we devised a completely new and upgraded web server setup on this new machine and migrated all D-PHYS hosted web shares to the new system. If you are the owner of one of our web shares, please make sure to read the updated documentation for things that have changed.
  • Network migration: the extensive Hönggerberg network reorganization we reported last year is even more complex than we initially thought, so there's no end-user-tangible progress this year - which doesn't mean there hasn't been a lot of behind-the-scenes work.
  • Storage: in 2019 the disk space occupied by data and backup grew from 2.1 PiB to 2.7 PiB, continuing the obvious trend of ever-growing data. The end of 2019 also saw a substantial expansion of the available disk capacity.
  • Clusters: we inherited two HPC clusters from CSCS that we're now running locally.
  • InfluxDB / Grafana: we included this popular time-series database / visualization combination into our service catalog.
  • Outages: apart from a pre-announced migration window and some short-term network interruptions, our systems have been very stable in 2019.
  • OS upgrades: The Windows team was active in getting rid of the remaining Windows 7 machines and upgrading Windows 10 to the 1809 build, while on the Linux side workstations were upgraded to Ubuntu 18.04 and a first batch of servers to Debian buster.
  • Software upgrades: the FileMaker server has been upgraded.
  • UCC: the UCC project of Informatikdienste was stopped due to nonfulfillment of the technical requirements and all deployed services and devices have been rolled back. The whole project will be reevaluated from scratch.
  • IT security: we participate in and support the ETH-wide IT security initiative.

I would like to take this opportunity to thank my whole team for their hard and dedicated work all year long.

Happy Holidays and see you in 2020!

Phishing and malware emails

Sunday, September 29th, 2019

In light of the recent surge of malware waves, we have decided to quarantine all incoming emails containing Microsoft Office documents with macros enabled - actually, we have been doing so for a week already. Unfortunately way too many of you still open those documents and risk (or succeed in) infecting your computer. Emails containing such dangerous documents will be quarantined and are never shown to the user. Emails with static office documents (no macros) will be delivered unaffected. We're aware of the fact that this policy might create the occasional false positive, but the benefits for all of D-PHYS far outweigh the downside and real use cases for macro documents via email are in fact very rare. In the 8 days of operation so far, we've detected ~850 infected office documents and only 1 false positive. Quarantined emails will be deleted after 30 days, so you have ample time to contact us in case a valid document gets flagged by accident.

Please get in contact if you have any questions.

Groupware upgrade

Wednesday, September 25th, 2019

Update 08:00: Migration completed. Please note that a legacy CalDAV URL has changed - if you're using a CalDAV client (for example Thunderbird or Apple Calendar), make sure you have the correct URL according to the documentation

For our calendar solution groupware.phys we schedule a migration on Friday, September 27, starting at 07:30. The service will be down for approximately 1 hour. We will move the service to a new virtual machine and upgrade to a new version.

Web server upgrade – step 2

Wednesday, August 28th, 2019

With the migration of the 'personal' web sites completed we're now addressing regular web shares. The easy ones have already been moved to the new web server and we're now asking share owners to prepare for migration. We will perform the migration for you, but your web site has to be ready for the environment on the new server (PHP 7 or Python 3 in particular). We're currently planning to power off the old web server at the end of 2019, so if you haven't migrated by then, your site will be offline. Please work with us to keep this deadline.

Web server upgrade – step 1

Tuesday, July 9th, 2019

Update 10:15 - migration done, please let us know if you experience any problems.

After 11(!) years of loyal service, the current D-PHYS web server hardware will be retired in 2019 and all web sites hosted by ISG will migrate to new hardware. We will take the opportunity to reorganize the way we host web sites and improve the general setup of the web server.

In a first step, we will migrate the 'personal' web sites (those residing in public_html/ in a home directory or group share) on Wednesday, 17.7.2019. We have extensively tested the new setup, and unless you're using dynamic content in your public_html folder (like PHP or other CGI scripts), you should not notice anything. With CGIs, there's a slight chance we might have overlooked something, so please test your dynamic content after that date and get in touch if you see a problem.

The regular web sites hosted by us will be successively moved to the new hardware at a later time and we will get in touch with their owners should it be necessary.

Note that this will not affect the department website in any way as that one is hosted on the CMS of Informatikdienste.