Apache or Nginx, what softwares should be used to for your server to achieve the maximum performance? If you have a small free server from GCP from part 1, and you want it to be able to handle average 1000 clients per second, Nginx is the best option. Apache use more server resources and must be configured properly to get the best performance. Nginx can handle very large amount of traffic even in a limited environment. We have done the loading test with the server from Google Cloud Platform from part 1 and the result was great without deep optimization. 1000 client/sec is not the maximum that this setup can get, it is the limit of the free test we could get. 
When we tried the same test using Apache, the test was aborted at the beginning because server crashed. That is why we will use Nginx. We are not the server expert, so we will not discuss how to optimize Apache to pass the same test. What we will need is NGINX + MySQL + PHP-FPM + Microcaching + WordPress.
iPhone's battery draining? Here's what you can do
If you just upgraded your iPhone to a new version iOS system from the old version for example from iOS 10 to iOS 11 or iOS 9 to iOS 11, you may notice that your battery is draining twice as fast or more after the upgrade. Sometime system can be lagging too. You may heard that you can turn off some features to help the battery to stay longer. However, if a smart phone needs to turn off all the features, what is the point of having a smart phone right? Here is what you can do if you experience battery issue after upgraded.
Build an extremely fast WordPress with GCP Part 1: server
Can you get a super fast server free from Google? Yes, you can. Google Cloud Platform has free tier for US region server. If you are building a small WordPress website using light bandwidth, the free tier is more than sufficient. Free tier provide 720 hours of instance usage which will cover whole month of usage. The only downside is if your site use a lot of bandwidth you will be billed after 1GB of free egress bandwidth, but still cheap because 1 GB cost only $0.01 for US and 1 TB $0.12 - $0.23 depends on the regions. Most new sites use only small amount of bandwidth. Ingress is free if you wonder. As of today, the free tier offer:
Install LAMP (Linux Apache MySQL and PHP) phpMyAdmin on CentOS 6 7
LAMP represents a full featured stack of the most popular web server, database, web programming language known as Apache, MySQL and PHP. This article will cover the steps on how to install the LAMP on a CentOS 6 and CentOS 7.
FREE Let's Encrypt SSL certificate via Certbot and auto renew
SSL certificate from Let’s Encrypt is free. That is the the whole point of why people are getting Let’s Encrypt’s SSL certificate. Their SSl are supported in all modern browsers. The only con is the certificate expire in 3 months. However, we can make the renewing process easier with cron. This guide is for server that already have https setup correctly, and will NOT cover how to setup https or modify server ssl configuration file.
macOS Sierra Asus Z87-A Clover Installation for Upgrade from El Capitan Or Fresh Install
Instruction for how to prepare Clover USB system installation flash driver can be found from here: Install Mac OS X with clover EFI bootloader on ASUS Z87a Hardwares used in this instruction: Motherboard: Asus Z87-A motherboard (Get ASUS Z87-A motherboard from Amazon) CPU: I7 4770K CPU or any LGA1150 CPU (Get LGA1150 CPU from Amazon) Graphics Card: Integrated Graphics Processor (HD Graphics 4600) Sound Card: Integrated Realtek ALC892 Harddriver: SATA3 SSD Clover’s configuration and files from this guide will fit El Capitan and Sierra. You can directly upgrade from previous macOS to Sierra using this guide for Asus Z87-A motherboard or other similar Asus motherboards. What is working? CPU Power management/Sleep/Wake OK USB 3.0 OK USB 2.0 OK ALC892 Sound Card OK Graphic Card OK Almost everything What is not working? None macOS bug or Clover bug and fix?
Install entware on ARM MIPS based DDWRT, Tomato, and ASUS Merlin
Entware is described as a modern optware replacement. Most of entware’s packages are taken from OpenWRT, but others are unique. If you are considering to install optware, you should try entware. This instruction is for ARM or MIPS devices only.
Install English firmware to Chinese version Yi Car WiFi DVR Camera
Xiao Yi car DVR dash camcorder is a nice budget car DVR from a Chinese company Xiao Mi. There are two version of Xiao Yi car dash cam available in the Market. One is Chinese version, with suction cup mount, Chinese menu, and Chinese voice. There other one is the international version. with adhesive mount, English menu, and voice. The design and video quality are the same except one with suction cup and the other one with adhesive mount. If you bought a Chinese version from eBay or you like the suction cup version, you can covert the firmware to International version by following this guide. All menu will become English and the advanced driver assistance systems will have English prompts.
MacOS Safari cannot install extension solution
Some old MacOS user may notice that installing Safari extention is not working like before in new system. “Install now” is no longer exist, it was replaced by “Trust”. However, when click the “Trust” button to install external extension, extension will not be installed in to Safari. That has nothing to do with the extension compatible issue.
MacPassHTTP - keepasshttp plugin for Mac keepass
This plugin is primarily intended for Macpass with PassIFox for Mozilla Firefox, chromeIPass for Google Chrome, or passafari for Mac Safari. KeePassHttp does’t not officially support Mac system just like Keepass doesn’t have a official native client for Mac. Since MacPass, this situation has changed and now MacOS people can use MacPass as native keepass application together with MacPassHTTP to get the similar experience like the Windows platform. Safari must install passafari extension in order to connect to MacPass or other keepkass application. Safari extension passafari download The latest version of MacPass can be download from MacPass Official Release. However, the official MacPass release does not include MacPassHTTP (keepasshttp support). It must be compile manually. Install/compile guide can be found MacPassHTTP. As of now, the last version of MacPass is 0.6.2. If you don’t want to go through the compile process, you can download the plugin from this post. MacPassHTTP.mpplugin The plugin has been tested for MacPass 0.6.2. Future version support is unknown. It should go to folder ~/Library/Application Support/MacPass/ You can open the folder from terminal and drag the plugin into the folder.