How to mount CD-ROM in console (no GUI)

Not everybody using a latest PC or Server. Some administrator prefer to install linux without GUI (just console) at old server/PC to run it smoothly. This is the way how to mount cd-rom on console.

1. Go to /mnt with this command
:~# cd /mnt

2. Create directory 'cdrom' with command:
:~# mkdir cdrom

3. Run this command
:~# mount /dev/cdrom /mnt/cdrom

How to check the mount process is success:
1. Insert the cd into cd-rom drive
2. Go to /mnt/cdrom with this command and list it to see what contents in your cd.
:~# cd /mnt/cdrom
:~# ls

That's all.

How to look IP address in Linux and Windows(not opensource software)

To look IP address in Linux:
1. Open terminal
2. Type "ifconfig" without "". It's will show like picture below:


To look IP address in Windows:
1. Open Windows command prompt
2. Type "ipconfig". It's will show like picture below:



The defferences is linux use "ifconfig" and windows "ipconfig" ^_^

How to implement a hosts.allow and hosts.deny (tcpwrappers)

To make your server block and allow some deamon process like sshd, ftpd and etc; use this configuration:

1. Open terminal
2. su - if you not a root user
3. Use your favorite editor like vi or nano. In this case I use vi editor.
4. Type "vi /etc/hosts.deny" without "".
5. At the buttom line just type "ALL:ALL:deny" to restricted all of deamon process
6. Save it.
7. Open "/etc/hosts.allow" with vi editor
8. At the buttom line "ALL:(some ip that you allow):allow" to allow anything from my IP address
9. Save it.

Done.

You can test to use sshd or ftpd to the server from others pc/server.

How to make sure your pc are use HyperThreading processor on Linux?

To make sure you PC or server running on HyperTreading processor is easy. This is the best way; even though you have utility software to check it.

1. Open your terminal
2. login as root if you not on root user. Use "su -" without "" command to login as a root.
3. Type "top" without ""
4. Press button 1 on your keyboard and you will see such as picture below.

Linux Games Links

These is some links for Linux games:

http://www.linuxgames.com/
http://happypenguin.org/

Enjoy! :-)