PostgreSQL: Upgrade to version 18 in-place
This is how I update my PostgreSQL instances to 18 using Docker Compose and PgAutoUpgrade
Martin Wendler
Valkey: Set up replication for Valkey
Some time ago, I wrote about Valkey as an alternative for Redis (see here). And in fact, many companies are using it in production.
But installing Valkey in Docker or on a server isn't enough, as there should be any mechanism for high availability.
So I'll
Tmux: lower your stress level at work (or maybe also at home) using Tmux
In my job, I have to connect to many different servers. Fortunately, most of them are running Linux. So I connect to them, do whatever I have to do, and close the connection.
But sometimes, a terminal window isn't enough, because
* I'd like to see what
Docker: Use Docker Compose for Minecraft
I'll show you how to use Docker Compose to run a Minecraft server
Oracle: Add database components to a 23ai CDB
This is how to add database components to a 23ai CDB
Oracle: How to solve error "CLSRSC-494" while patching GI 19c
This is how to solve error "CLSRSC-494" 19c, which says "Failed to execute this command. Current directory is under an ACFS mount point", although ACFS is not used
Docker: Meilisearch database version incompatible
This is a quick and dirty solution to upgrade a Mailisearch container in Docker to a new version
Oracle: Issues when patching Cloud Control 13.5 from RU25 to RU27
I got some errors while patching Cloud Control 13.5 from RU25 to RU27, this is how they could be resolved
Oracle: How to solve Oracle error ORA-01110
This night, I was woken up by a customer who had an issue with his software. Daily business was running fine, but some background jobs had issues.
What was the problem?
The first error looked like that:
2025-07-25 02:15:21 NOTE: AMB1 (index:1) registering with ASM instance as
FreshRSS: Move from Feedly to FreshRSS
This is how I moved my Feedly news to self-hosted FreshRSS