PROGRAMMING
2021-01-31
   
I have decided that I have to get up to speed with some programming topics I haven't used for a while and that I feel like I'm starting to forget or just I'm not up to the latest developments in that area. Concurrent programming and real-time is one of those topics so I decided to get started with it.

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BLOG
2021-01-22
   
Haven't written much lately, but it is time to come back to share experiences and findings. So I expect the blog to grow in the coming months and therefore a search function starts to become a need.

Actually, there is already a decent amount of posts in the blog and the current navigation makes very painful to find an old post . Moreover, I'm using the same blog platform pBlog for my side project ROOR (Revista Online Occam's Razor... and online technical magazine), that contains also a few tenths of posts.

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SECURITY
2017-12-12
   
Almost 2 years ago I wrote about a PoC Crypter for GNU/Linux. In the meantime I had learned a couple of things and it's time to revisit that old post and update it with new and fresh information.

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PROGRAMMING
2017-10-24
   
Some years ago I participate in a challenge. It went fine and all participants got some feedback afterwards so we could figure out what we had done wrong. As part of that feedback, the question of re-using parameters within function rose... so I decided to look into the details.

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LINUX
2017-05-03
   
Not so long ago I had to configure a machine following some strict rules. It was pretty painful and, when I was done, I was asked to provide an image of the configured machine to some remote team to do some checks on it. The machine was installed in a 1 TB disk, so making and image and send it around will require quite some time (either to transfer the file or to wait for the post to deliver some physical storage device).

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SECURITY
2017-04-27
   
A SYN scan is, maybe, one of the simplest stealth port scanning techniques you can think about. There are some claims around the Internet about how it works and I was curious to know more about thats. This post summarises my findings.

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LINUX
2017-04-19
   
For many years I have successfully used the techniques described in Four Unorthodox Ways to Transfer Files, for my transfer need. But, recently, I found a case where none of those techniques worked. So I have to come up with innovative ways to deal with the that.

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PROGRAMMING
2017-03-02
   
I read about tee and splice long ago. I quickly went through the man pages and, like in the Matrix movie I said to myself.. "I know tee and splice". Recently, I have to write some code that perfectly matched the functionality of these two system calls... but when I tried them.

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