How to remove the Server header in NGINX


by Danila Vershinin, June 24, 2018

How to hide the Server HTTP header in NGINX and more: hide the fact of using NGINX altogether.

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How to whitelist / unban a user in unmanaged Citrus Stack server


by Danila Vershinin, June 20, 2018

You’d rarely have to do anything about maintaining a healthy state of a Citrus Stack server. It is self healing, and secure from brute force attacks. However, when you share access with developers, a frequent problem is that the server would automatically ban them. This happens for a few reasons: Repetitive failed attempts to login […]

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In-Place Upgrading: Percona MySQL 5.6 to 5.7 (RedHat/CentOS 7)


by Danila Vershinin, June 17, 2018

A simple script for updating your Percona MySQL Server 5.6 to version 5.7, in CentOS/RHEL systems.

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Setup SSL connections in Percona MySQL 5.6


by Danila Vershinin, June 14, 2018

Secure remote MySQL connectivity with compulsory SSL connections

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How to fix PHP Curl Error Number 77 (CentOS/RHEL 7)


by Danila Vershinin, May 15, 2018

Here is how to fix PHP Curl Error Number 77 (CentOS/RHEL 7) in a very fast and efficient way. Quick few commands to get it fixed

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Linux Huge Pages and Web Performance


by Danila Vershinin, May 9, 2018

Squeeze out more performance juice out of that Linux by using Huge Pages memory management.

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Papertrail


by Danila Vershinin,

Log your stuff to Papertrail for increased security, maintenance and performance

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NetworkManager in CentOS/RHEL 7


by Danila Vershinin, April 22, 2018

Should you really disable the NetworkManager service in CentOS 7 like all the top Google results suggest? No, you shouldn’t.

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Setup CloudFlare DNS resolution in CentOS/RHEL 7 servers


by Danila Vershinin,

Make that DNS resolution faster on your CentOS 7 server using CloudFlare’s new 1.1.1.1 DNS nameserver.

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Varnish incompatible software


by Danila Vershinin, April 20, 2018

Listing all the scripts and apps which don’t play well with Varnish. And the reasons why. WordPress plugins Easy Digital Downloads Sets PHPSESSID cookie on every page: session_start(); in includes/class-edd-session.php

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