Cisco Cisco ASA Site-to-Site VPN In this blog post, let's have a look at how to configure a Site-to-Site VPN on Cisco ASA Suresh Vinasiththamby Apr 11, 2023 9 min read
NetDevOps Git for Network Engineers As Network Engineers, we work with various text files such as network device configurations, scripts, and text-based documentation. Managing these Suresh Vinasiththamby Apr 10, 2023 16 min read
Python A Beginner's Guide to NAPALM Network Automation NAPALM (Network Automation and Programmability Abstraction Layer with Multivendor support) is a Python library that implements a set of functions Suresh Vinasiththamby Apr 7, 2023 7 min read
Python Resolving Multiple Hostnames and IP Addresses with Python Socket Module If you've been searching for a way to easily resolve hostnames to IP addresses and vice versa, you& Suresh Vinasiththamby Apr 4, 2023 5 min read
Firewall What is Zero Trust Security? Ah, Zero Trust. The magical cybersecurity 'thing' that everyone talks about but seems as hard to decipher as Suresh Vinasiththamby Apr 4, 2023 4 min read
Terraform Terraform Resource Creation Order - depends_on Have you ever tried to make a sandwich only to realize you need to toast the bread before you can Suresh Vinasiththamby Mar 30, 2023 4 min read
Python The Ultimate Guide to Handling JSON with Python Did you hear about the Python developer who got lost in a JSON file? It took him hours to find Suresh Vinasiththamby Mar 30, 2023 4 min read
Network My EVE-NG Lab Setup Are you exhausted from searching for the perfect hardware setup for your EVE-NG lab? Well, let me tell you a Suresh Vinasiththamby Mar 29, 2023 5 min read
Python Network Automation - Python vs Ansible The short answer is "it depends" Overview In today's world of Network Automation, two popular choices Suresh Vinasiththamby Mar 25, 2023 4 min read
Terraform Terraform for_each loop Example Overview In this blog post, we will discuss how to use Terraform's for_each loop to deploy three Suresh Vinasiththamby Mar 25, 2023 4 min read
Netmiko Concurrency in Network Automation - How to Use Concurrent Futures with Netmiko Recently I published a blog post on how to standardize the VLAN names across 100+ switches. One of the comments Suresh Vinasiththamby Mar 23, 2023 5 min read
Network TCP Three-way handshake - 101 Overview The Transmission Control Protocol (TCP) is a protocol used for transmitting data between network-enabled devices. The TCP 3-way handshake Suresh Vinasiththamby Mar 22, 2023 4 min read
Ansible How to run Ansible Playbook Locally Overview Ansible is a powerful open-source automation tool that allows you to manage and configure servers, network devices, and applications. Suresh Vinasiththamby Mar 21, 2023 2 min read
Terraform Terraform Remote Backend Example using AWS S3 In this blog post, we will look at how to configure a remote backend for Terraform using an AWS S3 Suresh Vinasiththamby Mar 21, 2023 4 min read
Terraform How to Upload Multiple Files to AWS S3 Bucket using Terraform Are you looking to easily upload multiple local files within multiple directories to an S3 bucket in AWS using Terraform? Suresh Vinasiththamby Mar 20, 2023 3 min read
Cisco [Fix] Cisco C9300 HTTPS SSL_ERROR_INTERNAL_ERROR_ALERT I often come across an issue where I try to access a Web GUI of a switch or wireless controller Suresh Vinasiththamby Mar 20, 2023 2 min read
Palo Alto Palo Alto User-ID for Beginners Overview One of the best features of the Palo Alto firewall is hands-down User-ID. In simple terms, User-ID maps an Suresh Vinasiththamby Mar 19, 2023 3 min read
Cisco Cisco Switch/Router SNMPv3 Configuration In this blog post, we will explore the configuration of SNMPv3 on Cisco devices and how it can help you Suresh Vinasiththamby Mar 19, 2023 3 min read