In late 2023, I started exploring immutable operating systems, specifically Fedora Silverblue and Bluefin . If you’re curious about why I made this switch and want more technical details, check out my Froscon Talk on ‘Next-Gen Desktops’ or watch the video presentation below.

This year marked my inaugural attendance at the Chemnitzer Linuxdays. The experience was fantastic, and I had the pleasure of connecting with numerous intriguing individuals. Chemnitzer Linuxdays stands out as one of the premier events in the Linux and open-source community. With 3,200 attendees this year, participants had the opportunity to engage with a diverse array of topics through 94 talks and hands-on workshops .

• Link to Vulnhub

• DC Challenges

Original Description

DC-3 is another purposely built vulnerable lab with the intent of gaining experience in the world of penetration testing.

• Link to Vulnhub

• DC Challenges

Original Description

Much like DC-1, DC-2 is another purposely built vulnerable lab for the purpose of gaining experience in the world of penetration testing.

• Link to Vulnhub

• DC Challenges

Original Description

DC-1 is a purposely built vulnerable lab for the purpose of gaining experience in the world of penetration testing.

It was designed to be a challenge for beginners, but just how easy it is will depend on your skills and knowledge, and your ability to learn.

• djinn:1 is the next machine I want to break in.
• Level: Beginner-Intermediate
• flags: user.txt and root.txt
• Format: Virtual Machine (Virtualbox - OVA)
• Operating System: Linux

In my spare time I like doing CTF (Capture the flag) or solving machines posted at Vulnhub . This time I started Christmas vacation with Me and My Girlfriend: 1 .

Extracting and importing into Vmware Workstation was straight forward, after the start we need to find the ip address of the vulnerable machine.

In the last days I had a problem with a crashed virtual disk on a WebSphere Application Server. The backup team was able to recover all the data, but the operating system needs to be reinstalled. The operating system was Red Hat Linux, so rpm-based. One of the first tasks after recovery was to identify and reinstall missing packages.

I’m really impressed of the WAS 8 installation. Install Manager can handle multiple repositories, so you can install the core package and updates in one step. That’s lots faster than installing WAS 7, Update Installer and the fixes.

Yes i know Ubuntu is unsupported for WebSphere Application Server, but i like the simple install and update process. So i use it on about 80 % of my linux testsystems and i have no problems when installing IBM Domino, WebSphere, DB2 or Connections.

Additional software for Ubuntu

I added the following packages to Ubuntu and use x-forward for installing IM and WAS.