Category Archives: Servers

Linux : How to change the OpenVPN lockout time policy

By default, OpenVPN has 15 minutes timeout lockout policy for consecutive unsuccessful authentication attempt (whatever you are using Local, PAM or LDAP authentication). If you want to change it to shorter or longer time period, follow these easy steps below : 1. Push the new timeout value to the configuration using this command (this example… Read More »

Linux : cPanel failed to make connection to backend: httpd-UDS

Experiencing the following error loading a Web site hosted on your cPanel server? 503 Service Unavailable And observing the following errors in the Apache logs :

In my case, this occurred after the Web site account was just migrated to a new server. This is related to PHP-FPM, that isn’t responding to serve the… Read More »

Linux : Add OpenNMS data source to Grapfana not found error

Heading toward OpenNMS and Grafana for your monitoring and visualization needs? Way to go! (or Oh Yeah! like Duffman would say). First of all, I suppose since you’ve end up reading that post, that you have a successful installation of OpenNMS, Grafana and OpenNMS Help plugin. Adding a data source in Grafana in your OpenNMS… Read More »

Windows : How to configure VLans on Intel network adapter with PowerShell

If you have an Intel card and the necessary “Advanced Network Services (ANS)”, that is bundled with the Intel driver, you have the capability to manage VLans for your network interface with PowerShell. 1. Use the “ipconfig” command to find out the name of your adapter. Example :

In that case, our adapter name… Read More »

Linux : How to enable the cPanel feature on R1Soft server

If you are running both cPanel and have your own R1Soft server, there is a nice integration in cPanel that allow users to restore files, database or their whole account from this external backup source/destination. There are several steps involved for this, such as : 1. Enable control panel restore on the R1Soft server ;… Read More »