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Setup CloudFlare DNS resolution in CentOS/RHEL 7 servers


by Danila Vershinin, April 22, 2018

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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How Install ModSecurity NGINX module in CentOS/RHEL 7


by Danila Vershinin,

Here’s how to easily install ModSecurity to your NGINX in CentOS/RHEL 7.

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nginx: client_max_body_size inheritance


by Danila Vershinin, April 17, 2018

Quick information on how client_max_body_size directive is evaluated in nginx web server.

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PHP Security: disable error_reporting() NOW


by Danila Vershinin, April 9, 2018

Disable php error_reporting() function to secure your server from malware and bad coders pushing junk to it.

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CentOS 7, 8: ban bad IPs and networks with FirewallD


by Danila Vershinin, April 7, 2018

Now this is how you ban the bad guys from your server with the convenient Firewalld drop zone.

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How to install nginx on RHEL 7 / CentOS 7 properly


by Danila Vershinin,

Here’s how you properly install stable or mainline NGINX on CentOS/RHEL 7 servers.

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Add $_SERVER[‘REDIRECT_URL’] to nginx.


by Danila Vershinin, March 28, 2018

Here’s how to turn your nginx into a little bit of Apache by having nginx set and make use of $_SERVER[‘REDIRECT_URL’].

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[Fix] ImportError: ‘pyOpenSSL’ module missing required functionality. Try upgrading to v0.14 or newer.


by Danila Vershinin, March 23, 2018

Fix for running Certbot error: ‘pyOpenSSL’ module missing required functionality. Try upgrading to v0.14 or newer.

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Minimalistic Cache Warmer


by Danila Vershinin, March 12, 2018

Warm up your website cache using nothing but wget.

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