How to rename eth1 to eth0

27. November 2013 SysAdmin 0
Issue – How to rename eth1 to eth0 – How to rename ethX to yourname Hey, Most of the time when you are dealing with cloned Virtual Linux Servers, You may get the Ethernet device name as eth3,4 etc and without eth0. How we can rename it to eth0, eth1 or even to AWSADMINZ !!! Lets ...

How to Reset wordpress admin password via MySQL query or PhpMyadmin

29. October 2013 SysAdmin 0
This is how you can reset the password of your wordpress admin user. – Connect to your wordpress database via phpmyadmin or mysql-clients like sqlyog – Select the database and get ready to run the following query. [sociallocker] UPDATE `wp_users` SET `user_pass` = MD5( ‘newpassword’ ) WHERE `wp_users`.`user_login` = “admin”; [/sociallocker] – Now you can ...

How to Test the disk write speed on the server

20. October 2013 SysAdmin 0
This command will create a 1000 MB file with name “jobnix-speedtest” . So, Make sure you have 1 GB free space before you run this command. Run the following command to test the write speed of the server disk. dd if=/dev/zero of=jobnix-speedtest bs=1M count=1000 conv=fdatasync

Simple script to scan LUNs, create pv, vg, lv, mounting it and creating new entries in fstab in RHEL. (Note:- Probably need slight modification as pe

16. October 2013 SysAdmin 0
#!/bin/bash MPATH=0 for i in `ls /sys/class/scsi_host/host*/scan`; do echo “- – -” > $i; done sleep 5 multipath -ll echo -n “enter mpath:” read MPATH pvcreate /dev/mapper/${MPATH} vgcreate -s 32 $VG /dev/mapper/${MPATH} lvcreate -l 100%VG -n $LV $VG mkfs.ext4 /dev/mapper/${VG}-${LV} echo -n “Enter mount point directory full path:” read MOUNTPOINT if [ ! -d $MOUNTPOINT ...

CyanogenMod 10 – USB mass storage

12. October 2013 SysAdmin 0
Here is how you can enable USB Mass Storage in CynogenMod 10. Please follow the below steps, Go to, **Settings >> Storage**, Then hit **Menu button**. Select **USB Computer Connection** From the menu. Enable **Masst Storage** on the menu. Click **Turn On USB mass storage** on the next screen.  

[How to] set a password for mysql root user

10. September 2013 SysAdmin 0
This is how to set a password for mysql root user. Run the following command to set a password `/usr/bin/mysqladmin -u root password ‘new-password’` Once the password is applied, Test it by accessing mysql as root from localhost. You will get something like this, “` [email protected]:~# mysql ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ ...