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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -11,8 +11,8 @@ # Update the system echo "Updating the system..." apt-get update && apt-get full-upgrade -y apt-get autoremove -y && apt-get autoclean -y # Install necessary packages echo "Installing necessary packages..." -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -91,7 +91,7 @@ mkswap /swapfile swapon /swapfile echo '/swapfile none swap sw 0 0' | tee -a /etc/fstab # Setup the timezone for the server (Default value is "Asia/Kolkata") echo "Setting up timezone..." read -p "Enter the timezone for the server (default is Asia/Kolkata): " TIMEZONE TIMEZONE=${TIMEZONE:-"Asia/Kolkata"} -
Sep 5, 2024 . 1 changed file with 1 addition and 1 deletion.There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -3,7 +3,7 @@ # ------------------------------------------------------------------ # Script Name: DebPostInstall # Description: A Bash Script to automate essential # post-installation tasks on Debian and Ubuntu # Website: https://gist.github.com/ostechnix # Version: 1.0 # Usage: sudo ./debpostinstall.sh -
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,105 @@ #!/usr/bin/env bash # ------------------------------------------------------------------ # Script Name: DebPostInstall # Description: A Bash Script to automate essential post-installation tasks on Debian and Ubuntu # Website: https://gist.github.com/ostechnix # Version: 1.0 # Usage: sudo ./debpostinstall.sh # ------------------------------------------------------------------ # Update the system echo "Updating the system..." apt-get update && apt-get upgrade -y apt-get autoremove && apt-get autoclean -y # Install necessary packages echo "Installing necessary packages..." apt-get install -y sudo openssh-server ufw systemd-timesyncd vim htop net-tools curl wget git # Prompt for username read -p "Enter the username for the new user: " USERNAME # Check if the user already exists if id "$USERNAME" &>/dev/null; then echo "User $USERNAME already exists. Skipping user creation." else # Prompt for password read -s -p "Enter the password for the new user: " PASSWORD echo read -s -p "Confirm the password for the new user: " PASSWORD_CONFIRM echo # Check if passwords match if [ "$PASSWORD" != "$PASSWORD_CONFIRM" ]; then echo "Passwords do not match. Exiting." exit 1 fi # Add a new user account with sudo access and set the password echo "Adding new user account..." useradd -m -s /bin/bash -G sudo $USERNAME echo "$USERNAME:$PASSWORD" | chpasswd fi # Prompt for public SSH key read -p "Enter the public SSH key for the new user: " SSH_KEY # Add a public SSH key for the new user account, avoiding duplicates echo "Adding public SSH key..." mkdir -p /home/$USERNAME/.ssh if ! grep -qFx "$SSH_KEY" /home/$USERNAME/.ssh/authorized_keys; then echo "$SSH_KEY" >> /home/$USERNAME/.ssh/authorized_keys echo "SSH key added successfully." else echo "SSH key already exists in authorized_keys file." fi chmod 700 /home/$USERNAME/.ssh chmod 600 /home/$USERNAME/.ssh/authorized_keys chown -R $USERNAME:$USERNAME /home/$USERNAME/.ssh # Disable password authentication to the server echo "Disabling password authentication..." sed -i 's/#PasswordAuthentication yes/PasswordAuthentication no/' /etc/ssh/sshd_config systemctl restart sshd # Deny root login to the server echo "Denying root login..." sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin no/' /etc/ssh/sshd_config systemctl restart sshd # Setup Uncomplicated Firewall (UFW) echo "Setting up Uncomplicated Firewall (UFW)..." ufw allow OpenSSH ufw --force enable # Create Swap file based on machine's installed memory echo "Creating Swap file..." TOTAL_MEM=$(free -m | awk '/^Mem:/{print $2}') if [ "$TOTAL_MEM" -le 2048 ]; then SWAP_SIZE=1024 elif [ "$TOTAL_MEM" -le 8192 ]; then SWAP_SIZE=2048 else SWAP_SIZE=4096 fi dd if=/dev/zero of=/swapfile bs=1M count=$SWAP_SIZE chmod 600 /swapfile mkswap /swapfile swapon /swapfile echo '/swapfile none swap sw 0 0' | tee -a /etc/fstab # Setup the timezone for the server (Default value is "Asia/Singapore") echo "Setting up timezone..." read -p "Enter the timezone for the server (default is Asia/Kolkata): " TIMEZONE TIMEZONE=${TIMEZONE:-"Asia/Kolkata"} timedatectl set-timezone $TIMEZONE # Set up time synchronization with systemd-timesyncd echo "Setting up time synchronization with systemd-timesyncd..." systemctl enable systemd-timesyncd systemctl start systemd-timesyncd echo "Post-installation tasks completed successfully!"