Talk about server and programming
curl is used in command lines or scripts to transfer data. curl is also used in cars, television sets, routers, printers, audio equipment, mobile phones, tablets, settop boxes, media players…
I have run benchmark PHP 8.1 vs PHP 8.0 which was released on November 25, 2021. New features on PHP 8.1 Enums Fibers Readonly Properties Intersection Types never return type…
Sometimes we need to change SSH port on git server, because client is behind firewall or for security reasons. For example, git server ssh run on port 443. So we…
How to Yum update to specific version if we want to install update, but not the latest package. Sometimes we can not update to latest version and need some update…
Wget is a free software package for retrieving files using HTTP, HTTPS, FTP and FTPS, the most widely used Internet protocols. It is a non-interactive commandline tool, so it may…
If you have problem when execute bash script, it’s caused by Windows environment and then porting over to run on a Unix environment. If you use Notepad++, go to Edit…
Nginx virtual host traffic status module (Nginx Module VTS) has lot of usefull monitoring for your open source Nginx server. Nginx Module VTS also can monitoring upstream status and request.…
This post will guide How to install and configure Nginx Headers More Filter Module and completely remove Nginx server header. For security reason, some times we need to remove all…
This article is about simple benchmark Maxmind Geolite2 IP DB vs IP2Location IP DB. When we want to detect visitor city or country by IP, we can use free version…
Time to first byte (TTFB) is one of the many reasons why a website is fast or slow. Now, Google use website speed as SEO ranking factor. Google tells that…
Xvfb or X virtual framebuffer is a display server implementing the X11 display server protocol. In contrast to other display servers, Xvfb performs all graphical operations in virtual memory without…
On other post, we create an article how to obtain Let’s Encrypt SSL Certificate on Centos 6/7/8 or RHEL 6/7/8. As we know, Let’s Encrypt SSL Certificate is expired in…
