Question: Nginx or HAProxy as a reverse proxy? I’ve tested both. In some cases, I still need nginx, while in others, after a closer look, it’s not necessary.
Performance, etc.
Opinions from those who use/have used both?

I have a very strange issue with my VPS.

I am setting up wazuh for my personal use, and while the software seems to run just great, I'm unable to connect agents to it.

1. Wazuh does bind the ports (1514, 1515) properly. At least, netstat tells me to.
2. I can tcpdump on these ports, and see activity on 1515 (agent registration port).
3. The SYN packets never get a response from my VPS. It's like Wazuh is binding the ports, but isn't getting the packets or responding to them.

I'm completely out of ideas. The Wazuh community Discord has been unhelpful, so far.

I suspect ghosts.

Any help?

#wazuh #sysadmin #linux #selfhosted

I thought 'sudo' meant 'super user do.' Turns out, it also means 'super user undoing everything.' #linux #unix #sysadmin

This morning, once again, I come across an interesting project. I head over to GitHub to take a look.

I read that the only supported way to use the project is via Docker because "providing installation instructions, given the underlying complexity, would be impossible." Not a fan of that, but okay, I start to understand… So, as I often do, I decide to open the Dockerfile (there’s no Compose). First line:

FROM alpine:3.14 AS base

No, your project isn’t "just" complex. It’s running on an outdated and potentially insecure base. And that’s a much bigger problem. It probably means it’s such a mess that updating it is impossible.

I close the GitHub page and move on with my life.