How to install and enable REMI repository on CentOS 9 Stream
Remi repository is one of third-party repository that have latest update of PHP on Enterprise Linux such as Red Hat, CentOS, Fedora. You can read more about Remi’s RPM repository…
Category: Web Server
Benchmark PHP 8.1 vs PHP 8.0 vs PHP 7.4 vs PHP 7.3 vs PHP 7.0 vs PHP 5.6 vs PHP 5.5
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…
Nginx Virtual Host Traffic Status Module to Monitor Nginx
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.…
Remove Nginx server header with Nginx Headers More Filter Module
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…
How to Check TTFB (Time To First Byte) using CURL
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…
Auto renew Let’s Encrypt SSL Certificate using Systemd and restart Nginx / Apache if success
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…
How to obtain Let’s Encrypt SSL Certificate for Apache or Nginx using Certbot
Now SSL is one of SEO (Search Engine Optimization) signal. Read it on Google Webmaster Blog. If you only has one or two websites, there is not a big problem.…
How to block bad bots LieBaoFast, MQQBrowser and Mb2345Browser using Fail2ban
Our server suddenly got big traffic and this traffic detected on Google Analytics. This spike traffic increase 1000 % – 2000 %. Our server resource very high, and CPU usage…
How to install and configure Nginx Brotli
Brotli is developed by Google as an alternative to Gzip, Zopfli and Deflate, but we can say it’s enhancement. Our case study on Brotli has shown compression ratios of more…
How to install latest official Nginx on Centos 8 / RHEL 8
How to install latest official Nginx on Centos 8 / RHEL 8, instead using Nginx from Centos 8 or RHEL 8 repository. Currently Centos / RHEL 8 repo using too…
How to install and configure Nginx ModSecurity on CentOS 7
ModSecurity is an open source and great module to securing sites around the world. ModSecurity protects against Layer 7 attacks. It will prevent SQL injection (SQLi), local file inclusion (LFI), and…
How to mitigate TCP SYN Flood attack and resolve it on Linux
TCP SYN flood is a one type of DDoS (Distributed Denial of Service) attack that exploits part of the normal TCP three-way handshake to consume resources on the targeted server…