Easily set up an Ubuntu DNS server to secure BYOD devices.
How to Configure an Internal SMTP Relay Server for Office 365
Most organizations have internal application servers and appliances that send emails to users or groups. Examples include copier/scanners and application…
Duplicator
Simplify WordPress Migrations with Duplicator Are you frustrated by the tedious and time-consuming task of migrating your WordPress website from…
3CX PBX
3CX is a really nice VoIP system! It’s free for 10 users right now too… so if you want to…
Configure Postfix for Verbose Logging and Multiple SMTP Ports
Making Postfix daemon programs more verbose Append one or more “-v” options to selected daemon definitions in /etc/postfix/master.cf and type “postfix…
Test NTP Services from Windows or Linux OS
Find yourself needing to test your newly installed NTP server or NTP Services? To do this simply open up Command…
How to generate a self-signed SSL certificate – using config file!
Generating a self-signed certificate with OpenSSL To generate a certificate with SAN extension using OpenSSL, we need to create a…
Disable TLS 1.0 and 1.1 in Apache?
While trying to clear up some old SSL protocol support I found that using for following didn’t seem to resolve…
How to Create a CSR and Key File for a SAN Certificate with Multiple Subject Alternate Names
Objective This article describes how to create a Certificate Signing Request (CSR) and key file for a Subject Alternative Name…
Change expiration date of certificates issued by CA
To change the validity period settings for a CA, follow these steps. Important This section, method, or task contains steps…