Nov 14, 2017 In this tutorial, we will show you how to install and configure an OpenVPN server on CentOS 7. OpenVPN is one of the most popular VPN software solutions that implements virtual private network techniques for creating secure point-to-point or site-to-site connections.
![Pfsense install guide Pfsense install guide](/uploads/1/2/6/2/126298380/567336348.png)
Many operating systems block access to port 10000 by default, as they havea firewall activated as part of the installation process. This may preventyou from logging into http://yourserver:10000/ from another system on yournetwork or over the Internet.
The simplest way to open up port 10000 is to use one of the Webmin firewallmanagement modules, such as Linux Firewall, BSD Firewall or IPFilter Firewall.However, to access this you'llneed to run a brower on the same system as Webmin, and access it via the URLhttp://localhost:10000/.
The alternative is to login as root via SSH, and manually edit thefirewall configuration file. On Redhat and derived systems, this is/etc/sysconfig/iptables, while on Debian it is/var/lib/iptables. The line you need to add is :
-A INPUT -p tcp -m tcp --dport 10000 -j ACCEPT
It should be added in the file just after similar lines which grant accessto ports 80, 22 and so on.
![Webmin Webmin](/uploads/1/2/6/2/126298380/959525501.jpg)
Once this line has been added, you will need to apply the firewall configuration. This is typically done with the command/etc/init.d/iptables restart .