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…
Category: Linux
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.…
This strange issue occurred today on one of the new servers I prepared. I moved the test website from my client’s machine and I was testing it to check what…
![[UFW BLOCK] messages in syslog – how to get rid of them?](https://handyman.dulare.com/wp-content/uploads/2020/09/1834166-754x566.jpg)
The UFW – Uncomplicated Firewall gets more and more popular. It is good because the better the servers are secured, the better is the security in general. However, UFW users…