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I’ve always been fascinated by the quiet resilience of infrastructure — the invisible backbone that keeps businesses humming. But nothing highlights that resilience quite like an unexpected outage in the field.

In network environments, security is a top priority. One of the critical aspects of securing Cisco devices is controlling who can access them and what level of permissions they have. Authentication, Authorization, and Accounting (AAA) is a Cisco framework designed to provide a robust and scalable security mechanism to manage access control on network devices. In this blog, we'll focus on using AAA

Border Gateway Protocol (BGP) stands as a foundational protocol in the realm of internet routing, facilitating the exchange of routing information between different autonomous systems (AS). In this technical blog, we'll delve into BGP and explore the significance of the ip as-path access-list command on Cisco devices.

As technology continues to advance, so do the threats and risks to our cybersecurity. One of the most common defenses against these threats is the use of firewalls and intrusion prevention systems (IPS). However, these systems are not foolproof and can encounter problems that may leave your organization vulnerable to attacks.

Hello everyone, today I’ll be going over how to upgrade your SD-WAN network or deployment. This guide includes how to upgrade devices such as, vManage, vSmart, vBond, and vEdge routers. All upgrades should be done during a maintenance window if you are doing this on a live production network.

Within Cisco Umbrella Secure Internet Gateway (SIG) many features are at our disposal, such as Secure Web Gateway, DNS-Layer security, Cloud-delivered firewall, and many more. Information about Cisco Umbrella SIG can be found here.

https://umbrella.cisco.com/products/sig-product

In a previous blog I’ve talked about Cisco Umbrella DNS-layer and how to secure your organization at the DNS level. In...

I was upgrading a Catalyst 3850 48 port switch from version 03.07.01E to version 16.12.07. I’ve done this upgrade quite a few times. Followed the Cisco upgrade procedures that you find online when you download your software file. I always have them open, or the command needed to start the upgrade process. Console access showed me that my switch after my reload ended up in ROMMON mode.

The topic of backing up is not always linear. Backing up a system can sometimes be confusing topic among System and Network Engineers. There are always multiple ways to back up and restore, but is it the recommended for the system? For example, experience has shown me that enabling virtual machine snapshots to systems like ISE can present itself with larger operational issues like sporadic...

How to create a Certificate Signing Request with OpenSSL for your Cisco Firepower Threat Defense Firewall managed by FirePower Management Center.