fqdn – POFTUT

What Is SSL Certificate CN (Common Name) and Usage?

Common Name or CN is generally used in SSL Certificates. CN is used to define the server name which will be used for secure SSL connection. Generally this SSL certificate used to secure connection between a HTTP/S server and client browser like Chrome, Explorer, Firefox. Common Name (CN) Common Name is used to specify the … Read more

What Is /etc/hosts File and How To Create and Edit It?

New comers to the Linux generally asks for what is the purpose and usage of the /etc/hosts file. /etc  directory holds system and service related configuration. hosts file is used to store host name or DNS to IP address resolution. It provides easy way to match a host or DNS name with an IP address. List Current … Read more

How To Change CentOS Server/Host Hostname?

Host name is used to identify the systems like hosts, clients, servers etc. Host name provides human readable easy names to remember. In a big environment host names will provides some easy of use. This tutorial is compatible with  RHEL6, RHEL7, Fedora, CentOS 6 and CentOS 7 versions How Host Names Works In basic form … Read more

What is FQDN (Fully Qualified Domain Name)?

What is FQDN (Fully Qualified Domain Name)?

We generally see the term FQDN or Fully Qualified Domain Name and generally, though that is is like secret magic that provides some information about the servers and hosts. No. The answer is no the FQDN provides no secret or magic. We use FQDN in order to specify hostnames in a hierarchical manner. Below we will … Read more