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Accessing data on guest lvm

January 10, 2011 by Igor Drobot Leave a Comment

for my KVM guests I use only LVM disks, I find it easy to use and administer.
Every time you running out of space you can resize your lvn volume.
Bus some days ago I moved some virtual servers to another physical Dom0(Host) and was a little bit confused – how to move lvm – DD was not the best idea.

There is always another way, here is my:
Very important! Shut-down virtual machine.
[Read more…]

Filed Under: Debian, Linux Tagged With: Filesystem, LVM, restore data

Knock Knock

January 3, 2011 by Igor Drobot Leave a Comment

SSH is by default very strong, and since a long time without critical bugs. It has strong protection against various hacks and known vulnerabilities. For instance SSH has a password retry wait time of (default) five seconds. This makes the time for brute force attacking an SSH-server very long and not effective. However, sometimes script-kiddies will fork their hacking program making multiple processes of the brute force attack. Sometimes they are able to fork it off upwards of 1000 attempts every 5 seconds. This drastically minimizes the time to crack short passwords.

I think SSH is secure enough, but there is always a way to make it more secure.

Install knock daemon:

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aptitude install knockd

aptitude install knockd

[Read more…]

Filed Under: Debian, Linux, Networking, Windows Tagged With: knock, security, ssh

Windows 7 System Requirements

January 2, 2011 by Igor Drobot Leave a Comment

Before you install Windows 7, you need to ensure that the physical or virtual computer being used in your evaluation has the appropriate system resources.




If you want to run Windows 7 on your PC, here’s what it takes:
* 1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor.
* 1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit).
* 16 GB available hard disk space (32-bit) or 20 GB (64-bit).
* DirectX 9 graphics device with WDDM 1.0 or higher driver.

Filed Under: Windows Tagged With: Windows 7

Swot Analysis

January 1, 2011 by Igor Drobot Leave a Comment

SWOT analysis is a strategic planning method used to evaluate the Strengths, Weaknesses, Opportunities, and Threats involved in a project or in a business venture. It involves specifying the objective of the business venture or project and identifying the internal and external factors that are favorable and unfavorable to achieve that objective. The technique is credited to Albert Humphrey, who led a convention at Stanford University in the 1960s and 1970s using data from Fortune 500 companies.
[Read more…]

Filed Under: Macroeconomic Tagged With: Macroeconomic, Swot Analysis

Create Swap

December 29, 2010 by Igor Drobot Leave a Comment

I decide me to use LVM for the most server that I have, its very flexible and you can every time resize and shrink your partitions.

Use swap area as LVM was a little bit tricky:
Create a swap partition with parted or your favorite one.

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# -L flag creates a label for your device
mkswap -L swap /dev/vdc1
swapon -a
cat /etc/fstab
LABEL=swap      none            swap    sw              0       0

# -L flag creates a label for your device mkswap -L swap /dev/vdc1 swapon -a cat /etc/fstab LABEL=swap none swap sw 0 0

Filed Under: Linux Tagged With: label, LVM, partition, swap

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