wop

Set up new #FreshRSS instance for now. I want to read more and stay up to date on certain topics and I figured I could give RSS another chance. Stays invite-only for now, but feel free to hit me up if you want to have an account.

Focus on decoding unknown strings.

Not gonna lie, wasn't that fun. Learned a lot, but felt lost multiple times. Probably gets better over time.

Doing some rooms on TryHackMe. Decided to create a write up of one room. Have to work on the format, but it should be fine for now.

Feedback is welcome!

I think I've never share one of my favorite articles with you.

Creating this was great and it has been a great resource ever since. I use SSH tunnel a lot in troubleshooting sessions and security demonstrations.

I am pleased to announce the launch of: forum.ittavern.com

More information can be found in this thread, but in short I miss the forum culture and want to create an open-minded and sustainable community.

I welcome you and look forward to great discussions.

I am happy to share with you the new design of my blog.

New logo, new thumbnails, lots of CSS changes and everything is now hosted in a German DC.

The goal was to create a clean design and reduce the loading time even further.

Feedback is welcome.

Sending files over the internet. Been a pain in the past and I finally decided to host my own instance. It should be 'production' ready, but let me know if you encounter any problems.

So, every network engineer knows it: everyone else will blame the network and you have to prove them wrong.

There are multiple reason:

• lack of knowledge
• ignorance
• passing on responsibility
• laziness
• ... There are more.

I am interested in how you react to 'The network is causing the problems' requests.

• do you request certain information?
• need an explanation?
• what are you first steps?
• do you have a runbook or some policy in place?

Without getting into too much detail, I request some or all of the following information before I start looking:

• what are they trying to do? What is the desired outcome?
• what is the error message? *(pref a screenshot!) *+ timestamp (for logs)
• has it ever worked before?
• since when isn't it working?
• can you resolve domains?
• Source Host > Destination Host:Port
• Results of Ping + Powershell Test-NetConnection on Windows and Netcat on Linux (to test general connection, assuming TCP connection)

What I ask for and in what order depends on the person I am talking to. By the way, monitoring is my friend. If it says everything is fine, it usually is.

Side note Describing the actual proof that it is not the network depends heavily on the infrastructure and the problem, so this may be a discussion for another thread.

What are your first steps?

A quick & dirty solution that is available on most Linux hosts.