* ''============================= vi .bashrc for Coller================''
  * 
  * # You may uncomment the following lines if you want `ls' to be colorized:
  *  export LS_OPTIONS='--color=auto'
  *  eval "`dircolors`"
  *  alias ls='ls $LS_OPTIONS'
  *  alias ll='ls $LS_OPTIONS -l'
  *  alias l='ls $LS_OPTIONS -lA'
  * #
  * # Some more alias to avoid making mistakes:
  *  alias rm='rm -i'
  *  alias cp='cp -i'
  *  alias mv='mv -i'
  * 
  * Restart 
  * ''source ~/.bashrc''


''  *                >>>>>>>time setting troubleshooting<<<<<<<<<<<<<''  
  * date --set 13:33:50
  * date --set "06 Aug 2017 11:50:44"
  * hwclock --systohc --localtime
  * 
  * dpkg-reconfigure tzdata  >>>>> UI Time set
  * ---------------Centos--------------------
  * sudo sed -i -e "s/^;date\.timezone =.*$/date\.timezone = 'Asia/Dhaka'/" /etc/php5/apache2/php.ini
  * 
  * ln -s /usr/share/zoneinfo/Asia/Dhaka /etc/localtime
  * timedatectl set-timezone /Asia/Dhaka

sudo timedatectl set-timezone Asia/Dhaka
sudo rm -rf /etc/localtime
sudo ln -s /usr/share/zoneinfo/Asia/Dhaka /etc/localtime

''## Disabled IPv6 ''

echo "1" > /proc/sys/net/ipv6/conf/all/disable_ipv6 

''## Enabled Only ETH0''

echo "0" > /proc/sys/net/ipv6/conf/eth0/disable_ipv6


''**Remove & purge
**'' 

  * apt-get remove --purge mysql\*
  * apt-get remove --purge mariadb\*
  * sudo apt-get autoremove
  * sudo dpkg --configure -a
  * sudo apt-get install -f
  * apt-get remove --purge mysql-server mysql-client mysql-common
  * sudo apt-get remove --purge "^mysql.*"
  * sudo apt-get autoremove
  * sudo apt-get autoclean
  * sudo rm -rf /var/lib/mysql
  * sudo rm -rf /var/log/mysql