My name is Eugene, but on the Internet I often go by Dae. Welcome to my personal technical blog.
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[my IT consultancy company]
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.
Yes — Apple Cinema Displays from the 2000s (the aluminum ones with massive DVI cables) are still perfectly usable with modern Macs from the 2020s via USB-C. However, for the 30-inch model, you’ll need a slightly clunkier cable setup.
Continue readingIn PayPal, if you’d like to change card currency setting but the “Change” button is missing:
The trick is to append /update-currency/ to the page URL and hit Enter.
Accusys Gamma Carry 8 connected to a MacBook Pro via Thunderbolt 3.
Hard drives: 8 × Western Digital 18TB WD Ultrastar DC HC550 WUH721818AL4206.
Benchmarking software: Blackmagic Disk Speed Test running on macOS Sonoma.
This blog is a collection of my technical notes from working with information systems, not intended for the general public. However, Facebook’s user interface has become so convoluted that even simple tasks require a bit of technical knowledge and patience.
Previously, there was a dropdown menu in Facebook’s profile settings that allowed you to change the order of your names, letting you choose between “Bill Gates” or “Gates Bill”. Later, it seems it was replaced by a button called Change Order of Name. Now, it has disappeared as well.
Continue readingProblem: Cyberduck on macOS will repeatedly prompt you to present a client certificate when making an FTP-SSL connection to certain servers (e.g. Synology). This issue arises if your macOS Keychain contains at least one personal certificate. If the server connection requires a password for authorization (so not a certificate), this can become quite frustrating, as you’ll need to click “Disconnect” at least five times every time Cyberduck makes a connection.
Continue readingIf 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 reading