Circuit Breakers Hi. In this lecture, let us understand about the circuit breaker design pattern. Like I have mentioned before, this circuit breaker design pattern is very popular pattern in the integration world. This is first brought into light by Michael T. Nygard, especially because of his articulation in his book called Release is It. It was a very popular book with respect to the software release management. How it should be designed, developed and rolled out across the software development lifecycle. This is just one of the patterns he…

Using Timeouts Let us now discuss about timeouts. Timeouts should be the very first strategy or approach we should be implementing in all our APIs because this prevents most of the failures. Generally, timeouts come into play for slow performing APIs or the downstream systems. Say if your API which you are implementing is calling another API API which is slowing performing, then this timeout will help you from preventing any errors that are about to happen from the tapi. Or if your API is calling a back end system…

Object Store In this lecture, let us understand about the cloud Hub load balancers. One form of the Cloud Hub load balancer service is the cloud Hub shared load balancer. Every mule application deployed to Cloud Hub receives a DNS entry pointing to the Cloud Hub shared load balancer. Okay? So the Cloud Hub Shared Load Balancer in a region is shared by all new applications in that reason. And the cloud Hub share load balancer builds on top of the AWS elastic load balancer. Okay? If you are aware…

Anypoint VPCs Hi. In this lecture, let us discuss about the Any Point VPCs and understand them. Any point platform also allows the configuration of any point VPCs for a particular any point platform organization or business group within that organization. We can do at both levels MuleSoft applications deployed to Cloud Hub can then be deployed to one of these Any Point VPCs instead of the shared worker load which we discussed in the previous lecture. ANI Point VPC is again backed up by an AWS VPC which is…

API Implementations Hi. Welcome to the new section in this course. In this section, we will heavily focus on the implementation of effective APIs. The objectives of this particular section is to understand about auto discovery of API implementations implemented as mule applications. Then we see how API connectors us are helpful. We understand about cloud hub. We see how we can choose an object store in a particular cloud hub setting. Then we apply strategies that help API clients guard against failures in API invocations. We also understand the…

Managing Linux Permissions In this video I’m going to be showing you two commands to change ownership and permissions in Linux. The first one I’m going to show you is a command that allows you to change ownerships of files on Linux and it’s particularly it’s called Change Owner Cho Wn or Shawn. And the other one is going to show how to change permissions on file also known as change mode also pronounced as Chode or C-H-M-O-D. So these two commands here are basically what we’re going to use…

tcpdump In this video I’m going to be showing you how to use a really famous powerful utility called TCP Dump. Now TCP dump is basically a packet capture and utility for a Linux command line. Not all the time are you going to be fortunate enough to be in front of a graphical interface so you can use wireshark. Basically if you’re SSH into a computer it is no graphical interface and you’re going to need a command like TCP dump in order to help you troubleshoot problems and…

ipconfig, ping, tracert In this video I’m going to be explaining three commands that you should be familiar with, maybe in your previous certification such as A Plus or Network Plus. This should probably be a refresher for you. But I’m basically going to be using both Linux and Windows as I go through these commands. So the first one we’ll take a look at is Trace route. Now this command is based typically going to be the same whether it’s trace RT in Windows or trace route in Linux….

Introductions to commands In this video I’m going to be telling you what I’m going to be doing in this section. So in this section of the course, we’re going to be going through a whole bunch of commands. That is in the CompTIA’s objectives that I want to show you guys that I’m going to be covering now because the commands and takes up the screen and I want to show you the screen. I’m going to be disappearing from the screen just for the next couple of videos….

Fields on a certificate In this video I’m going to be talking about the fields on a certificate and what are the fields you need to know for your exam. So in the last one we saw how we can get a certificate request. We actually requested one for a web server. So let’s say you got the request, you installed it on the web server and you’re ready to go. Now you want to take a look at the fields on the certificate. So we’re are some of these…