Many people map ports on their home or small office routers, so their webserver or any other service is reachable from the internet. It is ok, but can be potentially a security flaw. It would be much more secure if instead of mapping ports you installed a VPN server. With VPN in place first you […]
A lot of systems in production still run Red Hat 6, so learning how to install (or reinstall) it is still a good idea. The instruction below will work with CentOS 6.7 as well. As with Red Hat 7.2, first we need to obtain RHEL 6.7 ISO image file from access.redhat.com. Once the image has been […]