My friend and fellow HCL Ambassador Carsten Gericke alerted me about a problem with Sametime and Let's Encrypt certificate We identified an issue with automatic Let's Encrypt certificate renewal in HCL Sametime 12.0.4 (tested with meetings-web:20260626-0004). The Sametime nginx container runs with a read-only root filesystem: read_only: true When Let's Encrypt is enabled, acme.sh tries to install a cron job for automatic certificate renewal.

A few weeks ago I had to update the certificates used by Sametime for a customer. Since they use LetsEncrypt certificate, I had set the renewal to be automatic, but it did not happen. I started looking at the issue with the invaluable help of my friend and Sametime guru Carsten Gericke and after digging in a bit we found the solution.

Once again the community has got together for the annual Engage event. This was the second managed by Kris and Tom and it’s clearly visible that they are improving and following Theo’s path, which is not easy at all. The venue was, as usual, not conventional. The stadium of the KAA Gent football team. When you attended the session on the third floor you were looking right at the field, impressive!

If you want to have SSO between Domino and Sametime 12.0.1 FP1 or above you need to create the Web SSO document in Domino using “LTPA token 2” as token format, instead of “LTPA Token and LTPA token2” as was common in previous versions of Sametime.This because HCL, starting with Sametime 12.0.2 FP1 disabled LTPA V1 token support by default - in favor of LTPA V2 which is more secure.

A customer of mine has ran into an issue when using his Sametime server for meetings with external companies. The participants could not see any video neither hear audio. Since internally everything works perfectly and he is using a TURN server, we started looking into its configuration and logs. We didn't find anything wrong and the logs reported no errors. Then, after finding that until circa one month ago everything was working fine, he remembered that since then, he changed the coturn certificate from a single LetsEncrypt certificate to a wildcard one he gets from a CA for his company.

HCL has just published a whitepaper that explains how to install Sametime 12.0.3 on Windows step-by-step, run it on the same computer as an existing Domino server, andcustomize the user interface.You can find it here This post is a shameless plug because the authors of the whitepaper are the Sametime expert, HCL Ambassador, and friend Aleŝ Lichtenberg and me.

As I wrote in a previous post I will speak at Engage 2026. But I am not the only one from OpenNTF that will have a session there, my colleagues in the Board will have sessions there too.This pictures shows the content that we are delivering at Engage, as you can see there's something for both developers and admins.

I had the honor and the privilege of having a session accepted at Engage 2026. I will speak, together with my usual partner-in-crime, Marianna Tomasatti, about the difference in configurations of Sametime Chat Server on Docker and on Windows. Sametime Chat on WindowsTue, Apr 21- 16:05–16:30 - Room ASametime chat on Windows offers the same features as Sametime on Docker/Kubernetes; however, configuration and customization are performed differently, and the files you need to edit are not the same.In this session, we will explain how to configure LTPA, SSO, and other tips and tricks.

While working for a customer, who has Sametime Chat on Windows and uses only web access to mail, I found a bug in Sametime. I opened a case and HCL could reproduce it; they created a Technote, KB0127919, for it. Hopefully will be fixed soon. Entries in stproxyconfig.xml are deleted after restarting the StProxy service

The time-to-live (TTL) setting defines how long the chat history is stored in the database. The default value is 90 days. The instructions on how to change it in the official documentation unfortunately refer only to Docker and Kubernetes deployments and do not cover the Windows-based chat-only server. On a Windows Server, you don't have to edit the file custom.env, as you would in Docker or Kubernetes; instead, you need to edit the file chatlogging.ini.

“Angels never know it's timeTo close the book and gracefully decline”were singing the Genesis in 1976 (Ripples, one of their best songs ever, IMHO). I am not at all an angel, so I know when it’s time to take a step back. Effective January 1st 2026 I will retire, though I will do it “gracefully” and not abruptly.

Sametime 12.0.3 chat server is available on Windows. You may want to have SSO, for example with Domino to have awareness status in email. You then need a LTPA key, which is very easy to create if you use Docker as referenced in the documentation here But what if you don't use Docker? You need a way to generate a LTPA key in Windows.

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Starting from V14.5 Verse is not installed anymore in the Data directory, but the new default is the Program directory ( . If you look in the Domino installation location, you will see that the Verse zip file is in the <ProgramDir>\addons\Verse And the Verse files are installed in <ProgramDir>\osgi\shared\eclipse\plugins Domino 14,5 ships with Verse 3.2.4, how do you upgrade to Verse 3.2.5 now that it has shipped ? The answer is as obvious as it seems, just extract the 4 files from the new Verse.zip and put them in the directory above mentioned.

As usual I attended Engage, and as usual it was a very good event. It was the first one not organized by Theo Heselmans, but Kris and Tom did a great job. I believe Engage is in good hands for the future. The location was nice, though not very eccentric like the ones Theo has used in the past, the New Babylon conference center; it had the advantage of being right in front of the Central Station, so getting there was a no-brainer, and the hotel I choose, like many others, was just around the corner, literally.

This request came from a customer, and thinking about it is nothing strange. Since you can have Sametime installed on Windows, can I install it on the same machine where I have already installed a Domino server ?For sure this will cause a performance problem, you have more stuff running on the same HW, but since nowadays hardware is pretty cheap having to add some more memory to a server is not a problem.

I found that some little customizations can be made to the Sametime web chat client UI also for the server running on Windows.For the ST server running on Docker, customizations are documented, for the Windows based server not. I changed the logo and the branding of the server To change the logo go in the directory C:\Sametime\nginx-win-x64\html\images and replace banner-image.svg with a svg of your choice.