Resources Web Security

Networking resources

Listed are some resources about Networking concepts. I have many computers and devices and a large area to cover so I have multiple routers in play. Messing with so many devices and getting more into Arduino means I need to deepen my understanding of Networking concepts. This page lists resources I have found to be helpfull, maybe it will help others too.

Cool stuff this is a cool web tool for testing mobile apps by directing traffic to your device. this cool web tool is about the same as above except it lets you expose your local webser to use it as your own web host.

Articles and links

One of my Routers is a NetGear N750 this is the link to the manual.  You can use google to find the manual for your router. Any old wireless router can be turned into a Wireless Access Point, which is what you need when running more than one router on the same network.

One thing to understand is DHCP ( dynamic host configuration protocol ) this is how your devices get an IP address from your router.

How to Set Static IP Address and Configure Network in Linux – excellent article about how to create static IP addresses on your Linux servers. This can be done on a local machine for fun or testing too.

How to Setup Local DNS Using /etc/hosts File in Linux – excellent article explains setting up IP addresses on you local machine for testing your web development work.

10 Useful “IP” Commands to Configure Network Interfaces


Network Types: LAN, WAN, PAN, CAN, MAN, SAN, WLAN

Well I learned what a PAN was from this video. A PAN is what I am wanting to create between my phone and my wifi enable arduino projects or maybe even a WLAN.

How a DNS Server (Domain Name System) work?

This is an excellent short video that explains DNS in detail. Name Servers or NS servers are usually hosted on servers from the company you purchase your domain name from. You tell these servers where to redirect traffic. When you purchase hosting you get an IP address from the company you buy it from whether it is a bare metal server or a cloud instance. You go into the Record system of your Domain Registrar ( the company you bought the name from ) and redirect traffic for your NS server to your host IP by making a few records.


This video quickly covers HTTP, HTTPS, SSL and TLS. This is good to know for people that own websites. This site uses SSL provided by LetsEncrypt since it is just a simple blog. If you need help with this contact me. I can install SSL for you.

What is a MAC address?

Why do we need both IP and MAC address?

IP Address Basics and Subnet Mask: PLC Networking Basics: Subnetting

Secret of subnet mask

This video covers what a subnet mask is and why they are used.

Subnetting is Simple

This video goes into much more depth than the shorter video above.

How does a computer communicate locally and remotely?

This is the followup video to the “Secret of Subnet mask” video above and continues on with the discussion.

How does DHCP work?

I like this video because it is 5 minutes long and gets directly to the point.

DHCP Explained – Dynamic Host Configuration Protocol

I like this video because it goes a little more in depth than the above video. This video is about 10 minutes long and explains more of the history of DHCP. It also goes into much more depth than the above video. If you are like me you may like to know a little about the history of DHCP.


service mesh resources

Service mesh resources

A service mesh allows for communication between microservices, between services and their database, they act as a proxy and load balance, control Security etc. A service mesh is one of the most important parts of a Microservice architecture. Examples of Service Meshes include Istio, Linkerd and Consul, there are more.


The Potential for Using a Service Mesh for Event-Driven Messaging 

This article highlights some of the drawbacks of current Service meshes and their lack of support for event sourcing/streaming and other weaknesses. This article does a good job of pointing out how current services meshes are not inline with current event sourcing microservice trends. This is a very handy article with great diagrams.

Service Mesh vs API Gateway

This article explains the difference between a Service Mesh and API Gateway. It explains how a service mesh is similar to an API Gateway and how they are different. Consul is one example of an excellent Service Mesh software. Basically your services need a way to find each other and communicate and a service mesh is that how. Service mesh is not the only way for microservices to communicate, you can use Event/Message Brokers, however you still need the service mesh in order for the services to find the Message Broker to send it messages or subscribe etc. You will also need a service mesh to find your Database and other software instances. So a service mesh works with microservices to help them communicate with the resources they need.

What’s a service mesh? And why do I need one?

This is an excellent article that explains exactly what a service mesh is and why you need them in Microservice systems. This article covers the history of Service Mesh’s and predicts the future of them as well. This article covers mostly Linkerd and how wonderful it is as a service mesh.

Service Mesh for Microservices

This article does an excellent job of explaining what a service mesh is and how it works in a microservice environment. The diagrams in this article make it easier to understand what a service mesh is and it’s role in microservice communication. This article also covers the pros and cons of a service mesh.

Resources Software Development

Microservice Communication Resources

Microservice Communication resources

In order to completely understand microservices you also have to understand networking. Communication is one of the hardest parts of microservice design, get it wrong and your system simply won’t perform. Below are some useful links that explain networking concepts.

Understanding the basics of RESTful APIs. This is a great article that covers how REST works and how to design a REST API. This article contains some very useful information and is a very quick introduction to the concept.

Understanding And Using REST APIs This is another really great article that covers API consumption. This article is quite a bit longer and more involved than the one above. This article covers REST in depth and is one of the best articles I have found on the subject.

Covered in the article is:

  • What is a REST API
  • The anatomy of a request
  • Testing Endpoints with Curl ( if you have not played with Curl then you absolutely should) CURL website
  • JSON
  • Authentication
  • HTTP Status Codes and Errors
  • Messages
  • API Versioning

Communication in a microservice architecture This article covers some basic information about Microservice communication. It makes some valid points and discusses some of the techniques and technology used for Microservice communication. This Article has some really good links listed throughout it.

Asynchronous Request-Reply pattern  This is a very useful article that covers communication between the frontend client aka browser and the server backend.

Should you use MQ/Brokers or Web services? and how they are different


Apache Kafka vs. Enterprise Service Bus (ESB) – Friends, Enemies or Frenemies?

This article covers :

  1. Some of the failures of SOA
  2. Streaming as a replacement for ESB
  3. Compares Apache Kafka to previous SOA architecture that used ESB
  4. Talks about Streaming and why it is the next great thing you must do
  5. Talks about large companies that use Kafka and how
  6. Talks about using Apache Kafka as a dumb pipeline for streaming apps
  7. Talks about the key differences between Kafka and ESB’s
  8. Talks about using Kafka in Legacy systems along side ESB’s and previous generation technologies


Application Integration for Microservices Architectures: A Service Mesh Is Not an ESB

This excellent article explains SOA, ESB, Microservices and how the hell we ended up in the current confusing word soup.
This article covers the following:

  1. The basic history of Software Oriented Architecture and Event Service Bus usage
  2. Compares a service mesh to an ESB, similarities and differences
  3. Gives a decent overview of the past usage of ESB’s
  4. Has a wonderful diagram of how ESB’s operate in a SOA system.
  5. Explains what a service mesh is

Kubernetes Service Mesh: A Comparison of Istio, Linkerd and Consul 

This article explains exactly what a service mesh is and compares a few of them. This is a very good, very informative article, one of my favorite.

REST, RPC, and Brokered Messaging – This article explores three popular styles of communication in service-oriented architectures and how to chose the appropriate style for a given use case.

Remote Procedural Calls explained in depth.

This video covers RPC even deeper than the above video. This video also covers Java RMI remote method invocation.