Linux, programming and more
If your are looking at your power socket(European standard) you see two pins. One of two pins is your phase and the other one is the neutral and of course the ground.
The stupid thing is, there is no rule that makes sure that right pin or the left one of your power socket is the phase. There are many rules for electricity, why not for this? [Read more…]
I want to test some tools to restore deleted data on EXT3 file system, to make this tests safe on a production server without loosing date I created a virtual HDD with 100MB size that running as a file.
Create a 100MB virtual HDD: [Read more…]
Stupid situation if device X tries to communicate with Bob, but Bob send no answer to request. Bob has a problem, his ARP table is broken and he cant reach X.
Solve this problem by clearing the ARP information table: [Read more…]
My tiny mail-command collection of the very important administrator mail command.
You can test E-Mail-Server create scripts with this useful command or send yourself some notifications.
The simplest one: [Read more…]
Penetration testing(pentest) is very important for development and production environments unfortunately many people forget that and play with fire.
Pentest is a method of evaluating the security of a server services and hardware devices.
This hard analysis is carried out from the position of a potential attacker, in this case this attacker is a white hat and he can involve active exploitation of security vulnerabilities. [Read more…]