Articles by Tag #cisco
Browse our collection of articles on various topics related to IT technologies. Dive in and explore something new!
From Beginner to Cyber-Aware: Lessons from My First Cybersecurity Course
I Just Completed Cisco's Introduction to Cybersecurity Course – Here's What I Learned...
Understanding 802.1Q Trunking – A Core Concept in Networking
Hey everyone 👋 This is my first post here, and I’m really happy to join the DEV community — great to...
(Part 2) iBGP vs. eBGP: Split Horizon Explained by a Confused Engineer
Welcome back to Route/Switch & Sleep Deprivation. In Part 1, we got two routers to shake hands....
Visão Geral da Camada de Enlace de Dados: Teoria e Prática (Parte 1)
Introdução e Base Teórica Este artigo é baseado em anotações que fiz durante minha...
I Built a Kubernetes Operator That Programs My Cisco Router
I wrote a Kubernetes operator in Go that talks to a Cisco 4331 router via RESTCONF. It creates VLANs,...
What is Cisco Duo? An Overview of A Leading B2B Security Solution
Is Your Business Safe from Cyber Attacks? Hackers are getting smarter, and passwords alone...
Como foi tirar o CCNA em 18 anos?
Introdução Olá, eu gostaria de começar dizendo que recentemente eu enfrentei um dos meus...
How I Practiced Cisco Network Automation for the 350-401 ENCOR Exam Using Python and REST APIs
When I first started preparing for the 350-401 ENCOR exam, network automation was the topic I kept...
Understanding Networking Commands - Why They Matter
It’s not about being perfect. It’s about understanding what you’re doing. It’s been a minute since...
Como instalar certificados SSL en Cisco C8000V
Este procedimiento está basado en la siguiente guía oficial de Webex: 🔗...
Python Essentials 1 – Completed! 🐍✨
Just wrapped up Python Essentials 1 via Cisco Networking Academy — and wow, what a ride! No prior...
CCNP vs CCNA: Which Cisco Certification is Right for You?
Introduction Cisco certifications are among the most recognized in the networking...
Cisco Packet Tracer Tutorial: DHCP Server Configuration Explained
when setting up a network in Cisco Packet Tracer, manually assigning IP addresses to every client can...
Developing Applications and Automation Workflows Using Cisco Core Platforms
In my career as an IT professional, one constant has always been the need to create solutions that...
🔌 A Deep Dive into Enterprise Networking for Developers
📘 Introduction Today’s enterprise developers are expected to go beyond writing clean code. With the...
Best Networking Solutions: Aruba & Ubiquiti for Reliable Connectivity
In today’s digital landscape, fast, secure, and scalable networking solutions are essential for...
CCIE Certification Cost: A Complete Guide for 2025
Introduction The Cisco Certified Internetwork Expert (CCIE) is one of the most prestigious...
Simulating an ISP Network with Cisco Packet Tracer (Hybrid Topology + OSPF)
🛠️ Tool Used The tool CISCO Packet Tracer (CPT) is what I used to form an ISP-handed...
What is a CCNA Certificate?
Having spent over 10 years in IT training, cloud technologies, and helping professionals upskill, one...
Understand Spanning Tree Protocol (STP)
So, imagine you've got lots of switches connected together in a network. At some point, you want to...
My Journey as a Software Engineering Student Exploring the Cloud
Starting My Cloud Journey ☁️ Hi everyone, I’m currently a software engineering student,...
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[HandsOn]Launching and testing Cisco Catalyst 8000V for SD-WAN & Routing on AWS
Introduction Thank you for always reading our articles! I was personally curious as to...
CVE-2025-20281: Cisco Identity Services Engine Injection Vulnerability
Cisco Identity Services Engine contains an injection vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC due to insufficient validation of user-supplied input allowing an attacker to exploit this vulnerability by submitting a crafted API request. Successful exploitation could allow an attacker to perform remote code execution and obtaining root privileges on an affected device.
CVE-2025-20337: Cisco Identity Services Engine Injection Vulnerability
Cisco Identity Services Engine contains an injection vulnerability in a specific API of Cisco ISE and Cisco ISE-PIC due to insufficient validation of user-supplied input allowing an attacker to exploit this vulnerability by submitting a crafted API request. Successful exploitation could allow an attacker to perform remote code execution and obtaining root privileges on an affected device.
Networking - What it is and Why You Need to Know It?
What is Networking? Networking can be understood in two main concepts: 1) the process of...
Securing Email with Cisco Email Security Appliance: The Essential Guide
In my years of working in the IT and networking field, one thing has always been true—email is the...
CVE-2018-0171: Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability
Cisco IOS and IOS XE Software improperly validates packet data, allowing an unauthenticated, remote attacker to trigger a reload of an affected device, cause a denial-of-service (DoS) condition, or perform code execution on the affected device.
CVE-2023-20273: Cisco IOS XE Web UI Command Injection Vulnerability
Cisco IOS XE contains a command injection vulnerability in the web user interface. When chained with CVE-2023-20198, the attacker can leverage the new local user to elevate privilege to root and write the implant to the file system. Cisco identified CVE-2023-20273 as the vulnerability exploited to deploy the implant. CVE-2021-1435, previously associated with the exploitation events, is no longer believed to be related to this activity.
Developing Applications Using Cisco Core Platforms and APIs: Unlocking Innovation in Networking
As an IT professional, I’ve learned that technology is most impactful when it’s applied creatively....
Configure Static Routes - Cisco Series
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