Mario oddmario

In Go, resource management is critical because unlike memory (which is garbage collected), external resources like file descriptors and network sockets must be released explicitly. Failure to do so leads to leaks that can crash your application.

Here is a checklist of the most common things you need to close, typically using the defer keyword.

1. HTTP Response Bodies (`resp.Body`)

This is the most common source of leaks in Go. When you make an HTTP request using the net/http client, you must close the response body, even if you don't read it. If you don't, the underlying network connection cannot be reused (keep-alive) or released.

What to close: http.Response.Body
Pattern:

Stop routing all traffic through Cloudflare WARP and use it on-demand using the tunnel interface name instead

#!/bin/bash

# https://serverfault.com/questions/978701/setting-up-openvpn-as-an-interface-rather-than-routing-all-traffic-from-paid-vpn
# https://serverfault.com/questions/992624/vpn-client-doesnt-have-internet-connection

WARP_INTERFACE_NAME="CloudflareWARP"

Stop routing all traffic through OpenVPN and use it on-demand using the tunnel interface name instead

#!/bin/bash

# https://serverfault.com/questions/978701/setting-up-openvpn-as-an-interface-rather-than-routing-all-traffic-from-paid-vpn
# https://serverfault.com/questions/992624/vpn-client-doesnt-have-internet-connection

OVPN_TUN_INTERFACE_NAME="tun0"

UPDATE

Moved to https://github.com/oddmario/GRE-setup-guide
Or alternatively, a similar WireGuard guide is available at https://github.com/oddmario/WireGuard-setup-guide

Setup a GRE tunnel between two Linux servers

TL;DR network engineering is hard 🫠

Server A

Moved to https://github.com/oddmario/AntiMagiskRootDetection

Install Magisk Alpha from https://t.me/magiskalpha
Hide Magisk by installing the proxy app and change the default "Settings" name to something different
Disable the built-in Zygisk of Magisk
Make sure "Enforce denylist" is NOT enabled
Install these Magisk modules:
- https://github.com/LSPosed/LSPosed.github.io/releases (IMPORTANT: Shamiko doesn't have automated updates, so its your responsibility to keep it up to date otherwise the root hiding will fail with security updates)
- https://github.com/Dr-TSNG/ZygiskNext

https://github.com/chiteroman/PlayIntegrityFix

Tune a Go `http.Server`

by adjusting its default buffer sizes

In some situations, you may need to adjust the default buffer sizes of a Golang HTTP server.

Adjusting the default buffer sizes allows you to benefit from higher throughput and improve the performance of your HTTP servers overall.

For the cherry on the top,

Installing QEMU with the qemu-anti-detection patch

This procedure was done on an Ubuntu 24.04 system

Install the dependencies required for the building process:

sudo apt install git build-essential ninja-build python3-venv libglib2.0-0 libglib2.0-dev flex bison libpixman-1-dev libsdl2-dev libsdl2-image-dev mesa-common-dev libglfw3-dev libgles2-mesa-dev libgl-dev libepoxy-dev libpipewire-0.3-dev libspice-protocol-dev libspice-server-dev libvirglrenderer-dev libjson-c-dev libcmocka-dev libusbredirparser-dev libgtk-3-dev libusb-1.0-0-dev

	package main

	import (
	"fmt"

	"github.com/pion/stun"
	)

	func getPublicIP(ipType string) ([]string, error) {
	var network string = "udp4"

	#!/bin/bash

	# Check if the correct number of arguments is provided
	if [ "$#" -ne 2 ]; then
	echo "Usage: $0 <input_file> <output_file>"
	exit 1
	fi

	input="$1"
	output="$2"

	#!/bin/bash
	killall -9 wine
	mv ~/.wine ~/.winebak
	wineboot
	rm -rf ~/.wine/drive_*
	mv -f ~/.winebak/drive_* ~/.wine
	rm -rf ~/.wine/*.reg
	mv -f ~/.winebak/*.reg ~/.wine
	rm -rf ~/.winebak