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config-debian.sh

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+echo "Usage: setup.sh [NewUser]"
+echo "Example: setup.sh alice"
+
+if [ v$1 != v ]
+then
+  NewUser=$1
+else
+  NewUser=adot
+fi
+
+apt update
+apt install -y emacs git curl screen sudo automake
+
+echo "<<< Making dir /faronear"
+if [ ! -d "/faronear" ]
+then
+  mkdir /faronear
+fi 
+
+echo "<<< Making dir /faronear/lib"
+if [ ! -d "/faronear/lib" ]
+then 
+  mkdir /faronear/lib
+fi
+
+echo "<<< Git cloning to /faronear/lib/sysconfig"
+if [ ! -d "/faronear/lib/sysconfig" ]
+then
+  git clone https://git.faronear.org/lib/sysconfig /faronear/lib/sysconfig
+fi
+
+echo "<<< Configure home"
+if [ ! -f "~/.bashrc.backup" ]
+then
+  . /faronear/lib/sysconfig/config-home.sh /faronear/lib/sysconfig
+fi
+
+echo "<<< Change root password"
+passwd
+
+echo "<<< Add a new user $NewUser"
+useradd $NewUser
+# usermod -a -G sudo $NewUser # Add to sudo group
+passwd $NewUser
+mkdir /home/$NewUser
+chown $NewUser:$NewUser /home/$NewUser
+chmod 700 /home/$NewUser
+# emacs /etc/passwd
+# Debian 10 default to /bin/sh
+sed -i "s/\/home\/$NewUser:\/bin\/sh$/\/home\/$NewUser:\/bin\/bash/g" /etc/passwd
+# Debian 9 default to empty
+sed -i "s/\/home\/$NewUser:$/\/home\/$NewUser:\/bin\/bash/g" /etc/passwd
+
+echo "<<< Allow sudo without password: %sudo ALL=(ALL:ALL) NOPASSWD:ALL"
+chmod o+w /etc/sudoers
+# emacs /etc/sudoers
+sed -i "s/%sudo\s\+ALL=(ALL:ALL)\sALL/%sudo\tALL=(ALL:ALL) NOPASSWD:ALL/g" /etc/sudoers
+chmod o-w /etc/sudoers
+
+echo "<<< Disallow root login: #PermitRootLogin yes"
+# emacs /etc/ssh/sshd_config
+sed -i "s/^PermitRootLogin yes/#PermitRootLogin yes/g" /etc/ssh/sshd_config
+service sshd restart
+
+echo "<<< Configure autostart"
+if [ -f /etc/rc.local ]
+then
+  mv /etc/rc.local /etc/rc.local.backup
+fi
+touch /etc/rc.local
+chmod +x /etc/rc.local
+echo '#!/bin/bash' > /etc/rc.local # can't omit, otherwise you can't launch pm2 in autostart.sh. Don't use double quote here, otherwise error.
+echo 'source /faronear/autostart.sh' >> /etc/rc.local # make sure to sudo pm2 in autostart.sh, otherwise pm2 list can't find it as root.
+touch /faronear/autostart.sh
+chmod +x /faronear/autostart.sh
+echo '>>> Autostart is set. You can "systemctl start/stop/status rc-local" to manage it.'
+
+echo "<<< Configure locales: install all-locales, default to zh-CN.UTF-8"
+dpkg-reconfigure locales
+
+echo "<<< Debian System Setup Completed >>>"
+