• ============================= 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