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To avoid confusions

Just a small reminder to myself; I should do this every now and then:


dpkg -l | grep ^rc | cut -d" " -f3 | xargs apt-get purge -y

Knock ya ports!

- Knock knock

- Who's it?

- SysAdmin

- SysAdmin Who?



knockd constantly watches firewall logs or system processes for predefined sequences of network traffic and takes specific action regarding to it's configuration file.

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Spy games for the Linux novice: CryptMount

So you got that job at the headquarters of your local low-budget secret intelligence agency. Congratulations!
Now your boss is asking you to come up with a solution for transferring critical data using USB flash drives in the field agents' pockets. (Don't ask why. We all have bosses at some points of our lives that doesn't make sense.)


Do spies loose those flash drives a lot?

Do spies loose those flash drives a lot?


Because it is a quite mediocre (you were the only one they could afford to hire) secret agency with very limited budget, it is now up to you to solve the problem of messy field agents.


You decide to use CryptMount to solve this problem. Here's how you do:

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Basic LVM

LVM is a system to manage multiple physical media to store data by single interface assignments. Usability comes from the vast capabilities such as adding, removing or replacing physical media to a volume group and dynamically shaping volume size.

Besides from RAID like abilities, a LVM creates online snapshots to help security and managebility.

As well as individual "lv***", "pv***" and "vg***" formed commands, Volume management operations can be hadled with "lvm" command which also acts as a basic shell.

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