Apache MPM performance Test: event -prefork As a basic test, I will create a PHP file that checks the existence of another file named, test.php in the same directory of two CentOS 7 servers with the same hardware characteristics and load but with different MPM. One of them will use event and the other one will use … Read more
Boost the Performance of Your Apache Apache continues to be the most widely used web server among sites and Internet-facing computers. Additionally, Apache keeps experiencing the largest growth among the top web servers, followed by Nginx and IIS. Thus, if you are a system administrator in charge of managing Apache installations, you need to know how to make sure your web … Read more
How to get the free SSL certificate Let’s Encrypt is a Certificate Authority (CA) that provides free certificates for Transport Layer Security (TLS) encryption, thereby enabling encrypted HTTPS on web servers. It simplifies the process of creation, validation, signing, installation, and renewal of certificates by providing a software client that automates most of the steps—Certbot. Here we … Read more
Install Let’s Encrypt to Create SSL Certificates What is Let’s Encrypt Let’s Encrypt is an SSL certificate authority managed by the Internet Security Research Group (ISRG). It utilizes the Automated Certificate Management Environment (ACME) to automatically deploy free SSL certificates that are trusted by nearly all major browsers. Start Downloading and installing Let’s Encrypt Download and Install Let’s … Read more
No space left on device: Couldn’t create accept lock (/etc/httpd/logs/accept.lock. If httpd service is starting properly but not able to access web services and you find No space left on device error in error log , check these items in order: 1. Check your disk space This comes first because it’s the easiest to check, and … Read more
CSR stands for Certificate Signing Request. This is generated on the server where the certificate will be used on. A CSR contains information about to your organization and domain name, locality, and country and a public key that will be included in your certificate. If you have already installed open ssl then run the below command … Read more
Apachetop is very simple command line utility that you can use to monitor traffic real-time. It accomplishes this by parsing the apache logfiles and displaying meaningful output to the screen. How to install Apachetop yum -y install apachetop How this used to display the http request # apachetop -r 5 -T 30 This means apachetop will … Read more