"Allen Gewalten zum Trotz sich erhalten"
Well, maybe it’s not entirely correct to blame Ceph for outages that happened in the last weeks to Nerdculture.de and other services running on my servers, but, well, I need to start somehow… Overview Shortly after the update from Debian… Read moreOutages on Nerdculture.de due to Ceph
Some of you may already know that I’m operating an XMPP server. So far there are several domains running on that XMPP server and two domains are open for public registration. Namely these domains are hookipa.net and xmpp.social. You can… Read moreXMPP and the effect of providers.xmpp.net
Disclaimer: For over a decade I worked on the topic of Cisco Unified Communications, so IP telephony, Cisco Jabber and video conferencing. Now I’m working at Univention doing some Linux and even Debian related stuff as an IT Consultant. For… Read moresetupSSO.sh : SAML SSO in Univention UCS Server
My current server is somewhat aged. I bought it new in July 2014 with a 6-core Xeon E5-2630L, 32 GB RAM and 4x 3.5″ hot-swappable drives. Gladly I had the opportunity to extend the memory to 128 GB RAM at… Read moreNew Server – NVMe Issues
UPDATE: It’s not as simple as described below, I’m afraid… It appears that it’s not that easy to obtain new/correct certs from LetsEncrypt that are not cross-signed by DST Root X3 CA. Additionally older OpenSSL version (1.0.x) seems to have… Read moreLetsEncrypt CA Chain Issues with Ejabberd