The cost of running virtualized resources such as servers, applications, and data in the cloud can exceed the expected budget set by an organization if proper checks are not put in place to help control or check excessive spending. It is worth knowing that the possibility of significant cost reductions is one of the primary…
GNS3 is open-source software that helps in emulating networks using the Cisco Internetwork Operating Systems (IOS). GNS3 enables you to run a Cisco IOS in a virtual environment and serves as a graphical user interface to Dynamics. For some articles I have written on GNS3, please see the following guides “Error–Failed to open a session for…
Read More “Graphical Network Simulator: How to install GNS3 on macOS” »
A Network Interface Card (NIC) is used to connect a computer to an Ethernet network. This tutorial will teach you two ways you can add a network interface to an already existing network interface. METHOD 1 – Additionally, we look at my available interfaces by issuing the ip command. For this tutorial, I am going to create…
Read More “Adding a subnetwork interface to an existing network interface” »
When it comes to network simulators and emulators, everyone has their favorite. In this article, I will be discussing the Graphical Network Simulator (GNS3). See how to install GNS3 on macOS. In subsequent articles, I will be discussing other simulators and emulators listed. Packet Tracer, EVE-NG, Boson NetSim, GNS3 and VIRL. GNS3 is an open-source…
Read More “How to Connect GNS3 to the internet on Windows” »
In this article, we will discuss how to Fix failed to open session for the virtual machine GNS3 VM. If you want to read more on the Windows system you can read these: How to prevent Windows Users from changing the Screen Saver via the Registry Settings. Here is how to Upgrade Windows 11 Pro…
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DHCP is an IP standard for simplifying the management of host IP configuration. The DHCP standard provides for the use of DHCP servers as a way to manage the dynamic allocation of IP addresses and other related configuration details for DHCP-enabled clients on your network. In this article, we shall discuss the error “Can’t Sign…
Read More “Can’t Sign In: Domain Unavailable & 169.254 IP Address Issue” »
In this article, we shall discuss the steps on how to set up WatchGuard Log Server. To effectively manage your network security, it’s crucial to set up a WatchGuard Log Server. This key component of WatchGuard Server Center acts as a local database, efficiently collecting log message data from every connected Firebox. Nonetheless, Gain real-time…
Learn how to securely backup a Cisco IOS image in this guide. Under no circumstances should you delete the working IOS image without proper backup to a server (TFTP or FTP). Find out the essential steps for data protection and network reliability. To safeguard against potential power or connection loss during IOS image transfer, it’s…
