Ubuntu Optimizer

This Bash script automates the optimization of your Ubuntu server.

It performs the following tasks:

0. Fix & Optimize System DNS Settings:

   Clean the /etc/resolv.conf and Add:

   • 1.1.1.1 - 1.0.0.1

1. Update, Upgrade, and Clean the server:

   • Update
   • Upgrade
   • Dist-Upgrade
   • AutoRemove
   • AutoClean
   • Clean

2. Install Useful Packages:

   software-properties-common build-essential apt-transport-https iptables iptables-persistent lsb-release ca-certificates ubuntu-keyring gnupg2 apt-utils cron bash-completion curl git zip unzip ufw wget preload locales nano vim python3 python3-pip jq qrencode socat busybox net-tools haveged htop libssl-dev libsqlite3-dev

3. Enable Packages at Server Boot.

4. Create & Enable SWAP File:

   • Swap Path: "/swapfile"
   • Swap Size: 2Gb

5. Enable IPv6 Support.

6. Clean the Old SYSCTL Configs.

7. Optimize the SYSCTL Configs.

   • Optimize SWAP.
   • Optimize Network Settings.
   • Activate BBR.
   • Optimize the Kernel.

8. Optimize SSH:

   • Back up the original sshd_config file.
   • Disable DNS lookups for connecting clients.
   • Remove less efficient encryption ciphers.
   • Enable and Configure TCP keep-alive messages.
   • Allow agent & TCP forwarding.
   • Enable gateway ports, Tunneling & Compression.

9. Optimize the System Limits:

   • Soft & Hard nproc limits.
   • Soft & Hard nofile limits.

Reboot at the end.

Prerequisites

• Ubuntu server (16+) with root access.
• curl

If your Ubuntu server does not have curl, install it first:

sudo apt install -y curl

Run

bash <(curl -s https://raw.githubusercontent.com/GetPHP-IR/Ubuntu-Optimizer/main/ubuntu-optimizer.sh)

Disclaimer

This script is provided as-is, without any warranty or guarantee. Use it at your own risk.

License

This script is licensed under the MIT License.