If you have created the .PFX file from Windows Certificate Services. Suppose to use with Apache in Linux server, can convert PFX to .key and .cer certificate because of The PFX contains the entire certificate chain.

We can find out total number connection to be established in MongoDB using the commands,

I hope you know to install Nagios monitoring server on CentOS, this post describes to configure the Nagios client in Ubuntu machine. very simple steps to install,

If you may have received an error, during WebSocket handshake Unexpected response code 400 on browser,

Once configured and restarting successfully on Apache. just it is not sure where you need serve from, so it's choosing your localhost

After have installed ProFTPD latest version and configured in on your machine, if you may get an error while restart the ProFTPD service, proftpd Unable to Use World Readable AuthUserFile.

Once you have installed an Apache 2.2 version on Linux system, when open the website on browser shows an error,