Category Archives: CentOS

CentOS 6.4 Disk Space iNodes

Today I'm going to show you how to identify where all your available hard disk space has disappeared to in CentOS. You seem to have ample capacity, but your installation keeps reporting that it has run out of space even though you've cleared temp files etc. I recently became aware of an issue where exceeding…

01/12/2018

Matrix7

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CentOS

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1527

Using TCP Wrapper in CentOS 7 for SSH Blocking

Just a brief post today to show you how to use the TCP Wrapper in CentOS to help manage access to SSH. What is a TCP Wrapper? It's a method of blocking access to services on your CentOS server via IP restriction. As a side note, you should still always have a firewall configured, so…

15/09/2018

Matrix7

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CentOS

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2616

Install Let’s Encrypt on CentOS 7

Today I'm going to show you how to install Let's Encrypt on CentOS 7. Before we begin I am assuming you have CentOS fully patched, have the EPEL Repository installed, have installed and configured Apache and that Apache is running. You also will need to ensure that you have allowed HTTP and HTTPS traffic through…

29/08/2018

Matrix7

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CentOS

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1517

NxFilter on CentOS 7

Today I'll show you how to install and configure NxFilter on CentOS 7. This tutorial assumes that you have a working install of CentOS 7 and you have access to and know how to use Putty and WinSCP. My example is running as a VMWare virtual machine. Let's begin. Connect to your machine using Putty…

14/09/2017

Matrix7

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CentOS

CentOS 7, NxFilter

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