For some reason, my home Internet connection stopped receiving large packets. This could be something with PMTU discovery blocks on the ISP side, or it could be something that I changed. An automated job which uploaded files using SSH (to be exact: scp) to my home stopped working. The failure was a time-out after the…
Oracle database systemd startup script is a common enough topic. That said – due to possible changes with how systemd handles limits, it could be that the context of oracle service used by systemd service would have different user limitations than when oracle startup command is called manually. Assumptions: Now, systemd unit requires entries to…
Introduction I use Linux as an Internet router. I use it with multiple rules (rather simple) using a very simple baseline configuration. The router has two main network interfaces – one facing the internal LAN, and one facing the external fibre connection, where it needs to use a specific VLAN, and then – use PPPoE…
The title is a bit long, because I wanted it to describe exactly the task at hand. Create an Nginx reverse proxy container, with self-signed certificate. The purpose of this post is to create a quick-guide for this purpose. I happen to need it from time to time, for various purposes, such as: Self-signed certificate…
TL;DR: I am required to use Citrix Workspace and with it – AppProtection and it is blocking my ‘snap’ command. I’ve been using Citrix Workspace version 24.8.0.98 and had a weird issue when running ‘snap’ command: The root cause had to do with the integration between Citrix AppProtection and libX11.so, which blocked running multiple applications….
Red Hat’s Anaconda installer, used by Red Hat Enterprise Linux, Oracle Linux, and other RHEL-like distributions, offers a powerful customization method through an additional product.img file. This technique allows you to modify the first boot sequence with relative ease. What is product.img? The product.img is an additional image file that can be used to override…
