A technical blog about HCL Connections, HCL Domino and other stuff
With the introduction of CertMgr in Domino 12, it became very easy to request a LetsEncrypt certificate for your Domino servers. But the standard HTTP-01 challenge, comes with limitations. DNS-01 challenges are far more powerful, but require extra work. In a series of blog articles, of which this the 1st, I’ll explain how to use DNS Configurations.
Continue readingI regularly receive question about the Certificate Store and CertMgr, which made me realise that there’s a lot of confusion around the Submit Request and the Save & Close buttons in the store and when to use what. Time for an article to hopefully solve some of that confusion.
Continue readingWhile playing around with ChatGPT, I wondered what ChatGPT’s view on the web mail clients of Microsoft and HCL was. The answer was pretty concise
Continue readingA small tip that can make troubleshooting in Domino a lot easier. Domino thread IDs contain the PID of the Domino process!
Continue reading
I’m happy to announce that I will be a speaker at the Engage conference in Amsterdam this spring with a very exciting session
Continue readingHuddo Boards (previously known as Kudos Boards) uses an open source component: Minio. This open source component recently had an update that breaks Boards. If you’re a Boards user, be sure to read this.
Continue readingPodman 4 includes some major changes to the networking stack (the responsible service is called Netavark and aardvark for dns resolution). These changes are incorporated into podman-compose, but this comes with a major caveat, which I cover in this post.
Continue readingYour Domino server could be victim to brute force attacks to guess user’s passwords and subsequently use your Domino server a spam gateway. Fail2ban is a elegant way to stop these brute force attacks. If you use Domino containers, you might have to do some extra configuration
Continue readingHCL renamed a server task in Domino 11. RepairCleanup is now called RprCleanup. If you’re not aware of this, you might get confused.
Continue readingOpenSSL introduced a new feature in OpenSSL 3.0, which doesn’t work well with older versions of nginx. Older versions, like the default version of nginx that comes with CentOS 9 Stream…
Continue readingThis is a collection of things I encountered during my work and were interesting enough to write down. Both for myself and for others. Topics include HCL Connections, HCL Domino, Linux, SQL etc.
