🌐 Network Optimius

Network Optimius is a lightweight, privacy-focused Linux tool written in pure Bash that automatically selects the best DNS server for your network and location based on real-time latency, packet loss, and jitter measurements.

It can run manually or automatically on a custom schedule (minutes, hours, days, weeks) and is fully reversible, restoring your system back to DHCP at any time.

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Features

• Smart DNS selection

• Tests router (ISP) DNS

• Tests public DNS providers (Cloudflare, Google, Quad9, etc.)

• Chooses the best DNS using a weighted scoring algorithm

• Advanced network metrics

• Average latency (ms)

• Packet loss (%)

• Jitter (network stability)

• Automation

• Run once

• Run every 30m, 1h, 1d, 1w (custom cron scheduling)

• Safe restore

• Reverts DNS settings back to DHCP

• Removes cron jobs cleanly

• Privacy-first

• No tracking

• No telemetry

• No external services

• 100% local execution

• Logging

• Full audit log stored in /var/log/network-optimuis.log

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Supported Systems

• Linux distributions using NetworkManager
  • Arch Linux / Manjaro
  • Ubuntu / Debian
  • Fedora
  • OpenSUSE

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Requirements

• bash
• iproute2
• networkmanager
• iputils (ping)
• bc
• Root privileges (sudo)

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Installation

Arch Linux / Manjaro

sudo pacman -S --needed iproute2 networkmanager iputils bc

Debian / Ubuntu

sudo apt update
sudo apt install -y iproute2 network-manager iputils-ping bc

Fedora

sudo dnf install -y iproute networkmanager iputils bc

OpenSUSE

sudo zypper install -y iproute2 NetworkManager iputils bc

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Usage

chmod +x noptimuis
sudo ./noptimuis

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Automatic Mode Examples

Input	Meaning
30m	Run every 30 minutes
1h	Run every hour
1d	Run once per day
1w	Run once per week

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DNS Scoring Algorithm

score = latency + (packet_loss × 10) + (jitter × 2)

Lower score = better DNS.

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Restore Original DNS

Restores:

• DHCP DNS
• Auto DNS
• Removes cron jobs

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Security Notes

• Runs only on your local machine
• Does not modify router firmware
• Does not affect other devices
• Requires root only for DNS changes

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Project Structure

Network-Optimius/
├── noptimuis
├── README.md
└── LICENSE

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Author

KarmsDev

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Tags

#bash #linux #networking #dns #dns-optimizer #network-optimization #devops #sysadmin #automation #cron #network-management #network-monitoring #network-tools #privacy #performance #bash-script

License

• GPL-3.0 license