A simple script to optimize relay and egress network performance on Debian GNU/Linux. Support Debian GNU/Linux only.

Built around XanMod Kernel, Cloudflare TCP tuning, and XanMod's default BBRv3.

The installer follows the current XanMod repository layout and selects packages by CPU level:

• x86-64-v1 -> linux-xanmod-lts-x64v1
• x86-64-v2 -> linux-xanmod-x64v2
• x86-64-v3 -> linux-xanmod-x64v3
• x86-64-v4 -> linux-xanmod-x64v3

main.sh - BBRv3+fq (recommended default, more balanced across most relay and egress workloads):

bash -lc 'apt-get update && apt-get install -y wget ca-certificates && bash <(wget -qO- https://raw.githubusercontent.com/Lemonawa/nextNetwork/main/main.sh)'

testing.sh - BBRv3+cake (testing profile, useful when you want stronger queue shaping):

bash -lc 'apt-get update && apt-get install -y wget ca-certificates && bash <(wget -qO- https://raw.githubusercontent.com/Lemonawa/nextNetwork/main/testing.sh)'

• Run the script as root.
• The one-liners above bootstrap wget and ca-certificates first so they work on minimal Debian installs too.
• Inside the script, only wget, ca-certificates, and gnupg are installed before adding the XanMod repository.
• If you prefer curl, install it first and replace wget -qO- with curl -sSL.
• Option 1 installs XanMod, writes the sysctl profile, and then reboots. Live sysctl apply is intentionally skipped until the new kernel is booted.
• Option 2 is for systems already running XanMod; it applies the sysctl profile immediately and then reboots after confirmation.

MIT

XanMod Kernel
nexstorm/magicTCP
Cloudflare's TCP collapse processing for high throughput and low latency
Linux内核参数调优 - Is Yang's Blog