We have installed multiple firewalls in gns3, and one of the firewalls you will have issues installing in gns3 is the Cisco ASA firewalls. Though there is documentation out there that explains how to install ASA in gns3, the result would be that you will end up with a reboot loop, and things may not …
Port forwarding is one of my favorite features on the firewalls and routers. It works great when you want to allow external users to specific services inside the network, be it a local area network or DMZ. We have covered how you can configure port forwarding on pfsense, fortigate firewalls, and routers in our previous …
When you want to extend your network with 3rd party vendors the best way to do that is by configuring an IPsec tunnel towards the third-party devices. The challenge, however, most of the remote ends may not have the same equipment as you have. Let’s say, for example, you may have a cisco router as …
In some of the last blog I have covered how to create IPsec tunnels between different firewalls, however, those who want to learn more about the IPsec VPN should practice them on a Cisco router. In my opinion, if you can set up an IPsec tunnel on a Cisco router it would be a very …
There are many ways you could configure a DNS server. If you are a network engineer and wanted to build a private DNS server for a small office, you can prefer to configure a router as a DNS server than configuring a Linux or a Windows machine for the same purpose, right? In this lab, …