My name is Eugene, but on the Internet I often go by Dae. Welcome to my personal technical blog.
I’m an IT professional, web developer, and producer/investor who works with small teams and SMEs in Europe in various roles involving IT, management, marketing, and design. I’m passionate about helping small businesses achieve big goals with the help of cost-efficient and non-bloated technology.
My IT company: https://dae.io/
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If you use Authentik (https://goauthentik.io/) as an OAuth authentication provider for your Apache Guacamole (https://guacamole.apache.org/) instance and you’d like to customize usernames for Guacamole, here’s how you can achieve this. The steps described below may work for other applications, wired with Authentik via OAuth, too—not just Guacamole.
Continue readingProblem: Guacamole 1.4 shows “internal error” when making any connection and in /var/log/tomcat9/catalina.out you see something like:
ERROR o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Creation of WebSocket tunnel to guacd failed: java.net.ConnectException: Connection refused (Connection refused)Problem (Guacamole 1.4 while connecting to an RDP server):
…and in logs:
guacamole guacd[2390]: RDP server closed/refused connection: Security negotiation failed (wrong security type?)Say you have nginx listening on port 80 and sharing a domain with another web-server (e.g. Proxmox web-server) that is listening on a different port, and you want to route HTTP-01 (“acme-challenge”) requests to that second web-server.
Continue readingProblem: after migrating Atlassian Confluence PostgreSQL database to another server, you’re seeing lots of broken links (in red color) and some navigation macros not working properly (showing errors such as “page not found”).
The first thing Atlassian themselves and their community experts recommend doing in such situation is rebuilding the content indices as described here. However, that didn’t work for me.
Continue readingIn psql:
CREATE TABLESPACE mytablespace LOCATION '/Volumes/MyVolume/postgres'; CREATE DATABASE mydatabase TABLESPACE mytablespace;
Kudos to GregHNZ for posting this on StackOverflow.
Continue readingIf you’re considering getting a Thunderbolt 3 dock called WD_BLACK D50 Game Dock (e.g. # WDBA3U0000NBK-EESN) to use with a Mac, think twice.
Continue readingHey fellow Internet dweller, are you worried about the following message appearing during backup of a suspended virtual machine in Proxmox?
...
INFO: suspend vm
INFO: creating archive '...'
Qemu Guest Agent is not running - VM ### qmp command 'guest-ping' failed - got timeout
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