Qualityology

Set custom DNS servers on Linux with resolv.conf

On April 25, 2018By Evan X. In Tech

resolv.conf is the configuration file for DNS resolvers for all Linux distributions, including Debian, Mint, Ubuntu, RedHat, CentOS, etc. Usually we change the DNS resolvers list by editing resolv.conf. However, depends on your dhcp client configuration, resolv.conf may be rewrite …

Protect your WordPress from Automated Comment Spam and Brute Force Login Attack

On April 12, 2018By Evan X. In Tech

Is your WordPress flooded with spam comment or being attacked by brute force login attempt? Thinking about spam blocking plugin? There are a lot of plug in can help you stop spam comment. You will notice it put thousands spam …

Asus Z87-A MacOS high sierra upgrade prepare with clover

On December 31, 2017By Evan X. In Tech

This guide is for upgrading your system from previous version to high sierra 10.13.x. For how to prepare USB installation kit, check here: Install Mac OS X with clover EFI bootloader on ASUS Z87a First, add driver support to APFS. …

Fix error - Mediakit reports not enough space on device for requested operation

On December 30, 2017By Evan X. In Tech

If you tried use MacOS's disk utility to erase or format a old/new hard drive, you may encounter some issue. MacOS will show below error when you tried to erase or format the drive, regardless your hard drive space: Erase …

Best and easiest way to sterilize baby bottles - UV sterilization

On November 12, 2017By Evan X. In LifeStyle

Baby is vulnerable to diseases and illnesses, so you will want to ensure their bottles are clean and germ free until baby's immune system developed providing a much higher tolerance to bacterias and germs. Sterilizing bottles can have different ways. …

Get Free $25 Cricket Wireless Credit for New Customer - Expired

On October 26, 2017By Evan X. In LifeStyle

Why use Cricket Wireless? Cricket Wireless uses AT&T cell towers so it will have native AT&T coverage plus some domestic roaming. You can even have Canada and Mexico roaming coverage when traveling by paying $10 more. Cricket Wireless get new …

Open PDF/A PDF file without read-only mode

On October 19, 2017By Evan X. In Tech

The file you have opened complies with the pdf/a standard and has been opened read-only. If you open a PDF/A standard PDF, in default you will not able to modify it because Adobe PDF reader or Acrobat will open it …

Ricoh SP C250DN C252DN PPD CUPS driver for LINUX and macOS

On October 4, 2017By Evan X. In Tech

C250DN or C252DN can be driven by setting PCL6 and use CUPS+Gutenprint driver. However, if we use Generic driver, it will not print out color. Ricoh does not have dedicate PPD driver for Linux platforms like Ubuntu or Debian for …

Edit Hosts file to override DNS record for domains

On October 1, 2017By Evan X. In Tech

Hosts file will instruct your machine to go directly to an IP address for specified domain instead of checking with DNS server. For example, point www.qualityology.com and qualityology.com to Google Cloud Platform server: 35.185.219.11 www.qualityology.com 35.185.219.11 qualityology.com Windows For Windows …

Build an extremely fast WordPress with GCP Part 2: Nginx

On September 30, 2017By Evan X. In Tech

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 …