cuiwm

Enable macOS Server Performance Mode

Performance mode changes the system parameters of your Mac. These changes take better advantage of your hardware for demanding server applications.

A Mac with macOS Server that needs to run high-performance services can turn on performance mode to dedicate additional system resources for server applications. Note, however, that performance mode can be enabled even without macOS Server being installed to achieve similar benifits for other high-performance services.

sudo nvram boot-args="serverperfmode=1 $(nvram boot-args 2>/dev/null | cut -f 2-)"
sudo reboot

Reference: https://support.apple.com/en-us/HT202528.

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How to compile and install latest realtek network driver in pfSense 2.4.x (FreeBSD 11.1)

1. Download FreeBSD 11.1 VMDK and create a VM with it as HDD.

2. Get FreeBSD source tree for your exact FreeBSD version and uncompress it to /usr/src:

   fetch -o /tmp ftp://ftp.freebsd.org/pub/`uname -s`/releases/`uname -m`/`uname -r | cut -d'-' -f1,2`/src.txz
   tar -C / -xvf /tmp/src.txz
   

3. Download latest Realtek network driver (you need to input an email address).

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# basic pfctl control
# ==
# Related: http://www.OpenBSD.org
# Last update: Tue Dec 28, 2004
# ==
# Note:
# this document is only provided as a basic overview
# for some common pfctl commands and is by no means
# a replacement for the pfctl and pf manual pages.

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#!/bin/bash
echo "diagnose tool for problem: \"fatal error: 'stdlib.h' file not found\""
echo "by AndrewChoe(xgod@163.com)"
# reason:
# System header dir /usr/include has gone forever.
# However, some software may fail to build correctly against the SDK and require macOS headers to be installed in the base system under /usr/include

cat >/tmp/hello.c <<-"EOF"
#include <stdlib.h>
int main() {

cuiwm

// It's tested on ios 8.2 ..

// Apple document about virtual memory: 
//    Both OS X and iOS include a fully-integrated virtual memory system that you cannot turn off; it is always on. 
//    https://developer.apple.com/library/mac/documentation/Performance/Conceptual/ManagingMemory/Articles/AboutMemory.html
// Discussing mmap on ios:
//    http://stackoverflow.com/questions/13425558/why-does-mmap-fail-on-ios
//    http://stackoverflow.com/questions/9184773/is-there-a-practical-limit-on-the-number-of-memory-mapped-files-in-ios

#include <sys/mman.h>

cuiwm

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

cuiwm

package main

import (
	"fmt"
	"net"
	"time"
	"bufio"
)

func handleConnection(conn net.Conn) {

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/*!
 * hnl.mobileConsole - javascript mobile console - v1.3.4 - 6/9/2018
 * Adds html console to webpage. Especially useful for debugging JS on mobile devices.
 * Supports 'log', 'trace', 'info', 'warn', 'error', 'group', 'groupEnd', 'table', 'assert', 'clear'
 * Inspired by code by jakub fiala (https://gist.github.com/jakubfiala/8fe3461ab6508f46003d)
 * Licensed under the MIT license
 *
 * Original author: @hnldesign
 * Further changes, comments: @hnldesign
 * Copyright (c) 2014-2016 HN Leussink

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/*
 * Valid options are:
 * - chunk_read_callback: a function that accepts the read chunk
                          as its only argument. If binary option
                          is set to true, this function will receive
                          an instance of ArrayBuffer, otherwise a String
 * - error_callback:      an optional function that accepts an object of type
                          FileReader.error
 * - success:             an optional function invoked as soon as the whole file has been
                          read successfully

cuiwm

to check if the server works - https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice

stun:
stun.l.google.com:19302,
stun1.l.google.com:19302,
stun2.l.google.com:19302,
stun3.l.google.com:19302,
stun4.l.google.com:19302,
stun.ekiga.net,
stun.ideasip.com,