26
Jul
2010
Linux Portable Apps
Portable Apps is being used by Windows Operating System widely from the Windows user, but they are less portables Apps for Linux World.
By now, a new website named portablelinuxapps.org features a number of Linux Portable Apps for Linux Distro for free. With these application, you can run it directly through your thumb drive or even your home drive without installing them.
By this post date(26 July 2010), all of the Linux Portable apps available as below, and it going to update time-by-time.
23
Jul
2010
Update Centos Linux 5.4 to Centos Linux 5.5
As you know, CentOS released version 5.5 and if you are using Centos Linux 5.4, you may actually upgrade it directly through your machine through the Internet with yum command.
To upgrade Centos version, you should take this 2 major steps.
1. Make a Backup.
2. Update package.
1. Make a backup
It is important to make a backup before you do any upgrade or installation. I will suggest you to have a full backup of your machine before doing the upgrade in case anything happen.
Make sure you have all of the data and database backup!
2. Update package
i) To upgrade your Centos, you may use yum command to upgrade it directly. However, you may try to check any update list available.
yum list updates
ii) You may update Centos as command below.
yum update
iii) Reboot your machine
reboot
iv) verify if everything working
uname -a
netstat -tulpn
tail -f /var/log/messages
cat /etc/redhat-release
10
Jun
2010
mkpasswd: Generate Random Password
In Linux, you may easily generate a random password through command.
To done it, you may use the mkpasswd utility.
$ mkpasswd
HXyt*m22j
Use -l to define the length of the password text as the password length by default is 9.
$ mkpasswd -l 15
y6lejl3ltm=bAKf
10
Jun
2010
Create RSA key login for remote login
From Unix/Linux system, you do not need to enter your login password for every login to your remote login.
You may create a RSA key to allow you to log into your remote server/box.
To create the RSA key, type the following command.
ssh-keygen -t rsa
Enter each of the question being asked.
Then log into the server that you would like to authenticate login and paste the code from/root/.ssh/id_rsa.pub to /root/.ssh/authorized_keys of the remote server.
1
Jun
2010
Reset MySQL 5.1 Root password
Sometimes you might want to reset your used password since it is used for long time.
To reset MySQL database password, you may need to consider different Operating System and it's version will have minor differences during the root password reset.
Today, Mick Genie will guide you how to reset MySQL database v5.1 through Windows Operating System and Linux Operating System.
For Windows Operating System,
1. Firstly, create a text file and name it as resetpassword.txt and you may save it to C drive.
2. Enter the following word to your text file.
CODE:
-
UPDATE mysql.user SET Password=PASSWORD('M!ckGen1e@Malays1a') WHERE User='root';
-
FLUSH PRIVILEGES;
Where you should replace M!ckGen1e@Malays1a with your new password.
3. Stop your MySQL services as step below.
Run -> services.msc -> MySQL -> Stop
4. Open Command Prompt(cmd) and run the command as below to start the MySQL services.
CODE:
-
C:\mysql\bin\mysqld.exe --init-file=C:\\resetpassword.txt
5. Delete the file named resetpassword.txt.
For Linux Operating System,
1. Stop the MySQL services.
CODE:
-
service mysql stop
2. Save the following command as a text file name resetpassword to anywhere such as /home/resetpassword.txt.
CODE:
-
UPDATE mysql.user SET Password=PASSWORD('M!ckGen1e@Malays1a') WHERE User='root';FLUSH PRIVILEGES;
![[Google]]( http://linux.mickgenie.com/wp-content/plugins/easy-adsenser/google-light.gif)