AMINUL ISLAM SHAMIM

Linux Server web

https://www.tecmint.com/install-ajenti-a-web-based-control-panel-for-managing-linux-server/

* set static routes in Ubuntu**

auto eth0 iface eth0 inet static

    address 192.168.1.2
    netmask 255.255.255.0
    up route add -net 192.168.0.0 netmask 255.255.0.0 gw 192.168.1.1
    up route add -net 172.16.0.0 netmask 255.240.0.0 gw 192.168.1.1

# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto em1
iface em1 inet static
address 192.168.30.2
netmask 255.255.255.0
broadcast 192.168.30.255
gateway 192.168.30.254
#persistent static routes
up route add -net 192.168.40.0/24 gw 192.168.30.1 dev em1

route add default gw 192.168.56.4

1. Quit Bash Shell Without Saving History: Unset HISTFILE .

unset HISTFILE && exit

Simple Bash Ping Script

for i in `seq 1 255`; do ping -c 1 210.4.64.$i | tr \\n ' ' | awk '/1 received/ {print $2}'; done

How to disable the VISUAL mode in Debian 9 … … …

touch ~/.vimrc

echo “set mouse-=a” > ~/.vimrc

source ~/.vimrc

touch rc.local.txt chmod 777 rc.local.txt
#!/bin/bash
echo '[Unit]
Description=/etc/rc.local
ConditionPathExists=/etc/rc.local
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardOutput=tty
RemainAfterExit=yes
SysVStartPriority=99
[Install]
WantedBy=multi-user.target' > /etc/systemd/system/rc-local.service
echo '#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will “exit 0” on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
exit 0' > /etc/rc.local
chmod +x /etc/rc.local
systemctl enable rc-local

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