Knowledge is Power!
Pre-requisites Understanding of DNS routing is necessary.Click here to have some picturesque. Route 53 is an Authoritative DNS and webserver i.e. ISP DNS finally contacts Rout53 which has IP address of the webserver. Gotchas 🦋 Route53 just gives the reply (IP) doesn't route traffic 🦋 For every request(
Knowledge is Power!
Makes it possible to create own network within AWS's network (ipv4/v6) i.e. virtualize network on top of the physical layer by defining the desirable range of IPs Components Subnets 🧁 CIDR specifies a range of IP addresses. 🧁 Once the range is decided, further split it into a
Knowledge is Power!
# **!/bin/bash** end=$((SECONDS+300)) mkdir -p samay cd samay while [ $SECONDS -lt $end ]; do # Do what you want. touch $(date "+%F-%T")_file.txt sleep 60 aws s3 sync ../samay s3://gaddagi-testing-files/ --region ap-south-1 : done
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Before HTTPS/HTTP connection is done, how does it find the target's address over the internet... just like any street address? How does it find with just the name? Why DNS was needed? DNS stands for Domain Name System. We all know our system understands machine language and
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Most important concept and interesting part in Networking. Everything runs around THIS! There is numerous post written on it, that's why am gonna jump to some most fundamental basics. So that while exploring this topic one can relate what is happening and how... at the back Mind. An
Knowledge is Power!
Create IAM identities and experiment. 🍨 Create IAM user. aws iam create-user --user-name --path </give-path/> --profile Path comes in handy, when using variables. will get to that too. Command Reference $ aws iam create-user --user-name user1 --path /developer/ --profile ashwiniag { "User": { "Path": "/developer/", "
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Why HTTPS? We have often heard its https://someurl not http://someurl... What exactly it is? Does it matter anyway? Most of the time we are happy finding the desired site, why care HTTP or HTTPS? and do we really need to be aware of it? Yes, Terribly! HTTPS provides
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Docker provides container isolation, one of the aspects that helps to achieve this is by using Networking namespace. The objective is to understand how containers interact with 1. Other containers 2. The host and 3. The host’s network i.e outside the world via the host. Pre-requisites Docker installed
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WARNING! Your password will be stored unencrypted in /home/ashwini-gaddagi/.docker/config.json. Configure a credential helper to remove this warning. See https://docs.docker.com/engine/reference/commandline/login/#credentials-store Found of this error ? :p Here is what I did to get my docker client working with docker-credentials-pass ! 1.
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Pay for what is used. We are billed for pre-selected configuration. 1. On-demand The time when the instance was up and running, only that period is charged. Here is a little tricky thing. When we say Time it is categorized in two aspects. 1. Per hour: For example, an instance
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Ansible * Allows us to change same thing on multiple servers quickly and easily. Install: * pip install --user ansible How * "hosts" file where all server's ip written. * "filename.yml" code written to make changes in the above ip. * Inserting a line after a particular line.
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Be secure by deafult! 🔒 Policy structure 🛡️ Principal: Attaching policy to?... Entity (users/resources) 🛡️ Action: Type of access allowed (Allow/Deny). 🛡️ Resources: Action will act on?...AWS Resources. 🛡️Condition: Under what condition/circumstances execute the defined actions on arn. Pro tip can make it most powerful as any of the Marvel