Xen

Reading Time: < 1 minute Xen is the virtualization tool for Redhat.
3 packages are needed: kernel-xen, xen, virt-manager

in order to create a new virtual machine:

virt-install

in order to start, create, destroy, stop, list virtual machines:

virtsh or xm

graphical user interface:

virt-manager

How to find which files comes with a Ubuntu package

Reading Time: < 1 minute

apt-get install dlocate
dlocate -L <name_of_the_package>

ex:
dlocate -L sysstat
/.
/usr
/usr/lib
/usr/lib/sysstat
/usr/lib/sysstat/sa1
/usr/lib/sysstat/sa2
/usr/lib/sysstat/sadc
/usr/lib/sysstat/debian-sa1
/usr/share
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/mpstat.1.gz
/usr/share/man/man1/pidstat.1.gz
/usr/share/man/man1/sar.sysstat.1.gz
/usr/share/man/man1/sadf.1.gz
/usr/share/man/man1/iostat.1.gz
/usr/share/man/man8
/usr/share/man/man8/sa2.8.gz
/usr/share/man/man8/sa1.8.gz
/usr/share/man/man8/sadc.8.gz
/usr/share/doc

Ports and processes under windows

Reading Time: < 1 minuteIt is possible to know which process is listening on a specific port in Windows.
Do the following:

– Open a cmd window.
– Type "netstat -ano"
– Look right, there is the PID of the process you’re looking for in front of the port number.
– Type "tasklist /svc /FI "PID eq 4022"   Replace 4022 by your PID number.

How to make sushis

Reading Time: 3 minutesHow to make perfect rice for perfect sushis.

Buy the right rice. There are probably many good rice but the one we buy is called Kokuho Rose. If you live in Helsinki area, you can find some at Tokyokan in Annankatu. https://www.tokyokan.fi/

Cleaning the rice. You need to wash the rice before cooking it. Just pour some water in it, mix and empty. If the water is white it means the rice needed to be washed.

Cooking the rice.