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1. This script is designed for execution on Linux server environments, including VPS, VDS, Dedicated, and Bare Metal systems. It is not recommended for use on Linux desktop environments.
2. Modifying the kernel (options 1 and 2) may result in removing or resetting some GPU drivers.
3. Some VMs do not support kernel changes (options 1 and 2). Installing XanMod could cause the VM to break. Please be cautious and test beforehand.

0. Fixhosts file and DNS(temporarily):

   • Check and add 127.0.1.1 and server hostname to/etc/hosts.

   Originalhosts file is backed up at/etc/hosts.bak.

   • AddCloudflare-Security DNS servers(1.1.1.2, 1.0.0.2) nameservers to/etc/resolv.conf.

   Originaldns file is backed up at/etc/resolv.conf.bak.

1. Update, Upgrade, and Clean the server:

   • Update
   • Upgrade
   • Full-Upgrade
   • AutoRemove
   • AutoClean
   • Clean

2. Disable Terminal Ads(Only on Ubuntu).

3. Install XanMod Kernel(Only on Ubuntu & Debian):

   • Enable BBRv3.
   • CloudFlare TCP Optimizations.
   • More Details:https://xanmod.org

4. Install Useful Packages:

   apt-transport-httpsapt-utilsautoconfautomakebash-completionbcbinutilsbinutils-commonbinutils-x86-64-linux-gnubuild-essentialbusyboxca-certificatescroncurldialogepel-releasegnupg2githavegedhtopjqkeyringlibssl-devlibsqlite3-devlibtoollocaleslsb-releasemakenanonet-toolspackagekitpreloadpython3python3-pipqrencodesocatscreensoftware-properties-commonufwunzipvimwgetzip

5. Enable Packages at Server Boot.

6. Set the server TimeZone to the VPS IP address location.

7. Create & EnableSWAP File:

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

8. Optimize theSYSCTL Configs:

   • Optimize File System Settings.
   • Optimize Network Core Settings.
   • OptimizeSWAP.
   • OptimizeTCP andUDP Settings.
   • OptimizeUNIX Domain Sockets Settings.
   • OptimizeVirtual memory (VM) Settings.
   • Optimize Network Configuration Settings.
   • Optimize the Kernel.
   • ActivateBBR(BBRv3 with XanMod).

   Original file is backed up at/etc/sysctl.conf.bak.

9. OptimizeSSH:

   • Disable DNS lookups for connecting clients.
   • Remove less efficient encryption ciphers.
   • Enable and Configure TCP keep-alive messages.
   • Allow TCP forwarding.
   • Enable gateway ports, Tunneling and compression.
   • Enable X11 Forwarding.

   Original file is backed up at/etc/ssh/sshd_config.bak.

10. Optimize theSystem Limits:

    • Soft and Hardulimit-c -d -f -i -l -n -q -s -u -v -x optimizations.

11. OptimizeUFW and open Common Ports:

    • Open PortsSSH,80,443.
    • WithIPv6,TCP &UDP.

Reboot at the end is recommended.

• Ubuntu & Debian:

sudo apt update -q && sudo apt install -y sudo wget

• CentOS & Fedora:

sudo dnf up -y && sudo dnf install -y sudo wget

sudo -i

wget "https://raw.githubusercontent.com/hawshemi/Linux-Optimizer/main/linux-optimizer.sh" -O linux-optimizer.sh && chmod +x linux-optimizer.sh && bash linux-optimizer.sh

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

This script is licensed under the MIT License.