We’ve got a handful of “old” AWS EC2 instances, running small t2.micro, t2.nano, and t2.small instances. From time to time we have to change the instance type to a larger…
Category: Linux
I have to prepare several Raspberry Pi boards for some of our small projects. We have a bunch of SD cards we can use. I want to determine which one…
Some of our old CMS systems are returning 403 and 404 codes when the site is attacked with various payloads. The application firewall responds on a deeper level (the application…
While moving old websites to the new webservers, we frequently need to update files on the new server. Here is the story: the new server is prepared, the site is…
I want to share with you one of the useful oneliners I’m using to find recently updated files on our Linux machines. Let’s start simple: What do we have here?…
This is rather a specific situation, but I thought that it can be useful to share our expertise since someone else can have the same problem too. In one of…
After a recent update to the OpenVPN on one of our Ubuntu-based machines, we noticed that the VPN connection stopped working. In the OpenVPN logs on the server, I found…
In my case, text processing is mostly reviewing logs and looking for things that are stored in them. Sometimes dig through the Git repository or trying to find a setting…
My old laptop has Ubuntu 20.04 installed. It is upgraded from the previous version, and I think it requires reinstallation since I constantly change something. New tools, new programs installed…
When running Lucee on Apache, the user request is processed first by Apache and proxied to Tomcat which is handling the Lucee code execution. Rather a long and complicated path.…