Fix NGINX Error: could not allocate new session in SSL session shared cache “le_nginx_SSL” while SSL handshaking

A typical web server error with NGINX and Certbot, which I recently discovered in error.log: It is an error that occurs sporadically, only in certain scenarios and most often on high traffic websites. Large number of queries. "Le_nginx_SSL", as can be deduced from the name, is responsible for the SSL sessions served… Read More

What is SELinux and solving “Failed to load SELinux Policy” on CentOS / RHEL [Fix]

First of all, let's make a brief description of SELinux. What is SELinux and what role does it play on the Linux operating system? SELinux is a kernel security module, which has the role of controlling the access of software applications and users, on the operating system. Released around mid-2000, Read More

What is it and how we block the access of a User Agent (Bot or Browser) on a website [NGINX Tips]

First of all, let's see in general what this user-agent of an internet browser is and what it is used for. What is a User Agent (or User-Agent)? Everything that means internet browser (Internet Explorer, Safari, Opera, Firefoc, Chrome, etc.) have an agent software that interacts with the website you are visiting, at the host server level. This Read More

Fix [HTTP Error] client intended to send too large body [Media Upload WordPress]

“HTTP Error”Is a common error among WordPress users who use the classic method of uploading pictures, documents and other files. Every time we encounter an SQL error, HTTP, it is good to check the logs in the server. They can give us more information about the error message displayed in the browser. Here is an example of… Read More

[FIX] NGINX start failed CentOS 7 - nginx: [emer] open () “path” failed (13: Permission denied)

When it comes to managing web servers, many unpleasant surprises can occur. Especially when switching from an older version of an operating system to a newer one. Available for both Ubuntu and CentOS. A lot has changed from CentOS 5 to CentOS 7… Read More

How to install an HTTPS Connection (SSL) certificate for a hosted website on an NGINX server without cPanel or VestaCP

I said in an article last month that more and more websites have switched to secure HTTPS connections and that Firefox Quantum is the first browser to start marking HTTP sites as unsafe for users. began to take root in the minds of many, as if sites without HTTPS were… Read More

[Fix phpMyAdmin] The configuration file now needs a secret passphrase (blowfish_secret)

Whether phpMyAdmin is installed on an Ubuntu server, CentOS or etc. Fedora distribution, the message “The configuration file now needs a secret passphrase (blowfish_secret) ”in red at the bottom of the index, give headaches. Especially when configured correctly in "/etc/phpMyAdmin/config.inc.php". Of course, the path may vary from one configuration to another, but on CentOS… Read More