AWS EC2(Elastic Compute Cloud)

AWS EC2(Elastic Compute Cloud) – ok we need to start ec2, i think the last time, we demonstrated how you can create an ec2 instance.

in your account, correct, when you actually launch an instance.

actually when you launch an instance, you’ll get all these steps here
step 1, step 2, step 3, step 4, step 5, step 6, step 7
7 steps are there and one by one you can select them
there is no need to record somewhere and
there is no need to record somewhere and
there is no need to record down somewhere
straight away when you open the dashboard
you can see all these steps
ok
now, its time to start the class
on aws ec2
what is ec2
ec2 i told you earlier
and ec2, basically the service you can use this service to create an virtual machine
and aws provide the virtual enviroment
where you can create an ec2 instance
and subsequently ec2 also
this service also provides option to select a configuration of instance
and we saw last time
in a quick steps, how we can create an ec2 instance
that i think you can easily create now
now its time to just study about

Components of EC2 Service

if you open ec2 dashboard,no of options are there
like images
elastic block store
network & security
load balancing
auto scaling
each of everything youll study one by one
step by step
correct
and i think you are ok with is now
so im creating again an instance
and during that provision
ill explain you about all these terms
right
when you launch an instance
this is the very first step
in the first step you see
AMI
what is an AMI
so its a template, its an image
its a operating system
ISO
what exactly this is
actually amazon machine image(AMI)
is a pre-defined configured templete
we know that to launch an instance
we do require an operating system image
without operating system definetly you cannot launch an instance
and we are working on virtual environment
and we cannot use ISO Images
because ISO images needs either the pen drives or DVD drive
we are working with virtual machines
so we cannot use these kind of drives aon virtual machines
and in AWS computing we create an instance
using templets of an instance
or AMI
so if you see
in the definition
in step 1
here itself written here
AMI is an template that contains the software configuration
operating system
application server
and applications
which required to launch your instance
everything is there on these same screen
no need to make your noted and all
only the thing you have to concentrate on what exactly you are learning
and by using AMI
of a machine
you can create number of similar instance in one go
AMI contains images of operating systems
such as linux
windows operating system
and we can explain the need of AMI
so the first AMI is required to launch the machine
i think this concept is clear
correct
and we can createAMI from that running machine
to we can use redimed AMI’s
and if you want to create your own AMI
that option is also available
and we will learn here how we can create your existing image
right
existing means if a machine contains a number of installed applications in that instance
AMI created from that instance will include all these settings
configuration
as well as applications
you have so when you create a new instance
using this AMI
youll find those applications that are available in that instance
and you can use AMI
from aws which are available in these four different types of options
we have
on AMI Page
if you see this AMI Page
we have quick start AMI’s
we have aws market place
we have community AMI
let me explain one by one
right now what you did
you selected the quick start
on the top
and in quick start
if you see
almost 41 AMIs are there
what is the meaning of this
only 41 AMI’s are there
dont you think it is very odd number
41
ya and actually these are the most frequently used AMI’s
of various operating system
now they are segregated
they are available in
quick start option
if you scroll down
youll see all these 41
and these all 41 are not available for free tier eligible
some of them are free
some of them are paid bases
lets say first one is amazon linux
this is for free tier eligible
means you can use this image free of cost
but next second and theird these are mac operating systems AMI’s
they just inlcuded last month
earlier these AMI’s were not there
either selecting these AMI’s
you have to pay
for these AMI’s
as well as the upgraded AMI’s
susre linux
and we have windows operating systems AMI’s
we have deep learning AMI’s
all these AMI’s
in these catagory
we have deep learning AMI’s
All these AMI’s in this category are most frequently use AMI’s
it depend what AMI you are using for your machine
correct
machine means ec2 instance
so this is the first thing
next is
your my AMI
one more thing that i just want to tell you
because right now im not telling because
the thing is not yet cleared
lets say if you are just seeing this the detail under here
like do you read it
so in these
like do you read it
so in these
they are saying that the root device of the machine you create if you use this AMI
to create your ec2 instance
youll get EBS volume with this AMI
and with this machine
and virtualization type is hardware virtualization
and ENA is basically the network interface card
and you;; have ENA Enabled
enhance network adapter
so all these things are all given here
if you are selecting this AMI
what exactly you are getting with your ec2 instance
and not only this
if you are selecting this AMI
what exactly this AMI Contains
the story is written here
the complete information is written here
lets say this AMI Linux 2 comes with the five years support
it provides linux kernal 4.14 tuned
for optimal performance
what exactly it is containing
everything is written here
correct
now
if you go furthur, if you see another one
the same sort of things are there
EBS,hvm & ENF
is a network interface
now these days all machines we have ENA capability
means we have enhave network adapter
i was showing you that
if you click on my AMI option here
you see here the AMI you have
in your account if you are using it very first time
if you didnt create any AMI
you dont see anything
its normally blank
but in my case, i have my own AMI
i created on AMI
thats why i can see my AMI
so what im saying if you need , you can create your own AMI
and this is a good thing because in AWS
AMI repository you have only redimed AMI’s
and redimed AMI’s are not configured for your infrastructure
to distribute to create more machine
the first of fall you should create a machine
then youll configure a machine
and if you think that the machine is ready to deploy
machine is ready to raplicate
so you can use this option to create, create my AMI
so if you create on my AMI
you are create image will appear here
so my AMI is clear

Next Is Marketplace

please do understand
that in this catogory you have more than 4000
more than 4000
nearly 5000 AMI are available
actually vendor provide their customized
customized or product AMI
and you can search any you can purchase them
you can search number of developer tools, business software’s
and software infrastructure AMI here
and we have long list of AMI’s
right
so elet say i have no idea
that if you want create oracle instance
or sap instance
from where youll get AMI’s
so this is the option available you have
you have aws market place
if you just go there
so if you are selecting sap AMI
and hit enter
simple write sap, youll see sap AMI’s here
lets say im just interested in oracle
i dont know what we have in oracle part
these are the AMI’s
so you can select
one of them as per your requirement
as per your project requirement
but in order to understand
which one is best for you
what youll do
lets say im just taking, the wordpress
wordpress
let me take word press
this is very common everyone can understand
and now hit enter
so if you see
this is the AMI
which is free eligible
but if you need to understand about this AMI
what exactly this AMI Contains
you can just expand this detail
and everythig is written about
what this AMI Contains
and what is the templete of this AMI
what default you are getting
lets say Im Interested in docker server
you just write docker
youll find docker
right
so windows docker
linux docker
depend on your project
so docker ubuntu
amazon EC-optimized amazon linux AMI
and this way you have number of machines
on docker
we have docker on centos 7
we have docker on RHH
even we have fortinet
this is basically the firewall kind of actually the AMI you have
and if you know
how to configure fortinet, you can use this image
so this way more than 4000 images we have
not only this one more thing just need to tell you
but later on
number of things are there in this ec2
ec2 service
which is quite important
ill definitely take longer time to complete this service
and ec2
offcourse if one service but
i think will take two or three classes to complete
i think that wont imapct your training
but this is very important to understand
AWS Platform
next is community AMI
right
how would you know which AMI to use
great question
probably you are working on
some project in your office
in your company
and the company will tell you
what exactly the features you are looking
in a machine
and those features should be there in AMI
in order to understand either
you must have some experience
which AMI is ok
or otherwise
you have to go and you have to see
lets say im interested in
to just place one
server linux server
with docker
right
so if you are saying
this is the first quick start
and you click the quick start
and do you find some docker here
lets say do you find anything related to docker
in these three lines
yes or no
no of course no
ok or you can write here
linux docker
that you need to search
right
so in this quick start catogory
we dont have any redimed docker image
so what youll do
youll go in market place
and write linux
amazon linux ofcourse, im looking for amazon
so you can narrow down your search
amazon linux docker
enter
see do we have
ya
we have
so this is the amazon linux
with docker and docker compose
and this is avaialable free of cost
so you can take this
ok now if it is written in free tier eligible
you have not to pay anything to aws
but in case if it is not written here
this is not free eligible

then you have search to what amount , aws will charge

like in this case
the price is very clear
in this case the price is very clear
even in this case the price is very clear
here this is the price
is written here
so almost in every AMI
they are writing about the prices
and this price is additional
if you place the machine
AMI has separate cost and
compute resources has some separate cost
like Configuration of the machine has
Separate cost
So Right now.
so this is the way you Can Search
which AMI is useful machine
Or you required to launch a machine
by the way
the third is community AMI
In this particular Resource.
you Can find number of popular
and
the popular and community
Resources
like Amazon Linux
Cent os
Debian
fedora
Gentoo
all these are operating
System fenders
and if you want to search down.
If you want to search on the basis of
name
you can just simply click on this.
and you can find AMI’s
Let’s say I’m Interested in Amazon Linux
you just select this option,
you’ll have all these amazon Linux
next, is what architecture you.
are looking for
are you looking for 32 bit
are you looking for 64 bit
intel based architecture
and 64 ARM
and 64 Mac based
So, let Me Choose like 64
64 bit (x86)
we should have some idea about
architecture of Machine hardware
so If you dont have
I think your team will inform you
which aretitecture is more suitable,
and in almost in maximum cases.
Either you are taking 64 bit (x86)
or 32 – bit
these days actually we are not
using 32 bit machines.
we are using 64 bit Machines
and this Arm & the mac also
is also platform,
a hardware platform
So this is most suitable platform,
using these days 64-bit (x86)
Even though all these platforms
are available
depend what platform you want
to use.
You can discuss with you team
Correct
so Everything One person cannot
Come to know that
what exactly is there.
and the third thing,
the third option. In this Catogory
in this Catogory
this option was not there.
in other Catogory like It way
not there in quick Start
or Aws market place.
but in community AMI
If you are selecting any instance,
from here.
Or Instance type from here
like Amazon Machine image
you are selecting from here
So you have an option select an.
operating System
you have an option to select
architecture of this ec2 Instance
and third
what kind of root volume you
want
connect with your ec2 instance
normally you see EBS Volume
but we have instance store also
I’ll explain you
I’m ebs
So we have an instance to go
ebs volume is a hard disk kind of
thing
which Can Connect with ec2
Instance,
which work like an hardisk
I explained you In my last lecture
but we have Instance Store also
but if you taken Instance Store
You cannot take,
data permanently In this
if you Reboot your Machine
If you stop your machine
whatever Information
whatever the data is stored
In the machine
that will be lost.
Right, so you cannot store your data
permenently
So this is a temporary Volume
off conse this will Run
if you Start every thing is there
your operating System is there
using this AMI
whatever. All you are using but
instance store
normally people are using for.
less cost
Correct
but the one thing is there
If you want to store data in this
ec2 Instance Store
that One possible
So EBS is good
EBS is good
but if you are working with
large number of machines
Lets say if you have one thousand
or two thousand machine
in your environment
and you have some central Storage for your
applications
you never use EBS volume to share application
so these instance store will only use to cache your memory
or the temporary data can be stored over
there it is only available while the machine is available
while machine is running
when you reboot your machine
when you stop your machine
whatever information
whatever data was stored in this temporary volume
so this is not recommended if you are planning to store your data on your EBS volume
so if you are planning to store data in a root volume
EBS is the right option
so this is again but this feature is only available in this community
AMI’s
so from here lets say
in the only EBS will support
let me tell you
like in this if you are selecting this EC2 AMI
only EBS will support, there right
here EBS will support
scroll down scroll down
if you are choosing, let me choose instance store here
youll find instance store based AMI
i dont have ok
so in Amazon linux, its not available
let me try in Red Hat
is it there or not
no
we dont have
so very few machines has this options available
other linux
we dont have
ok, ok
let me choose Amazon linux once again
ya
now, you can see the instance store here
you can see very clearly
if you are selecting
if you are selecting this particular AMI
if you are selecting this particular AMI
you have root device type instance store
instead of EBS
instead of EBS
so EBS is standard
but the instance store if you want to
use as a root volume that option is also available
and for that you have to use community AMI
is it clear
this is very important vital information im giving you
ok
so im going you one simple example, lets say im selecting the first one
you just go there
but one more thing is there so such kind of instance store
are not available under free tier eligible
please do understand
ok
if you want to use instance store
roots volumes
so this feature is not available under free tier eligible
you can very clearly see all these free tier eligible
and these low configuration machines are dehighlighted
you cannot select
these machines
only the machine you have
you have the machines
better configuration
lets say you have cl.medium
or cl.xlarge
let me take one and just, i just proceed
just click on configuration instance detail
let it be as it is
3rd step im not making any change
and if you are just going here
you have all these volumes
lets say you have four volumes here
and you are interested in only one volume
so you can delete all these volumes
and you see
the size of this volume is fixed
you cannot change the size of the volume
because it is the instance store
and you have only the instance store
option available on with this instance type
and this is the device
this is the name of the device
and the snapshot is not applicable
as i already told you
you cannot create a snapshot
you cannot actually restore data from these kind of EC2
volume type
because if you restart these machines
if you stop & start these machines that wont allow to actually store data on these
so these are the basically the temporary volumes
and youc an only store some temporary data like
cache and cookies such kind of things you can use here
and this is you have
and the volume type is
HDD
and 10ps also not existable
and throughput also not adjustable
but the size 420 GB is fixed
so we are not taking all these stuff here
so i was just explaining the things are there
in community AMI
correct
so because you are using actually AMI for free so this is the option
we are using quick start
in this youll get the most frequently
used AMI’s
of various operating systems
so i think the information about AMI is ok
now the next thing is
how youll create your own AMI
how youll create your own AMI
and for the you must have a machine
correct
yes or no
through machine you can create your own AMI
through your own machine
you can create your own AMI
and whatever the machine configuration you have
whatever the machine setting
whatever the machine has applications that also included in AMI
so whatever the state of the machine
you have at that particular point of time
everything will be taken in AMI
so what im doing
im going back
im going back
to EC2 dashboard
and right now we have a machine
and im explaining you how you can create your machine
i have a machine
i can do one thing
let me delete it because i think
this is not a right machine i think
this was created
through some elastic bean stalk so i have no idea
what exactly is there in this machine
so what im doing im creating launch instance
but this time im using my synechron apache server
we have so this is the server
we have
this is already configured
right, so or you can take the first one(quick start->amazon linux 2 AMI(HUM))
let me tell you how the things will work
iim taking the first AMI
linux AMI
this AMI is totally blank
this is the linux AMI
and this is the very first AMI
if you install any machine
if you launch any machine
through this AMI
the machine is very new
there is no pre-configured
there is no application we have
so first of all we have to configure
your machine as per the project requirement
so youll open this machine
youll configure this machine
youll update this machine
youll include some packages in it
and youll do some configuration a
and later on
one you feel that your machine is now
ready
to launch
then you can use this machine to create new AMI
now what i can do
i can share that AMI
with other AWS account holders even
and i can copy that AMI
from one region to another region
ill tell you
you please see here
just give a second ill tell you what you can do with AMI’s
just a minute
you please let me know are you getting me
are you getting what im teaching
ok good
so this is your board
and im teaching you here
what is an AMI
lets say
you are creating an machine
so configuration of the machine doesn’t contain an AMI
AMI is only a template of an operating system
it dosnt contain any configuration related to ec2 instance
so at the time of the launch of the machine
you can select instance type
the configuration of the machine
nobody is forcing to use the same configuration
as you had in your machine
you have used to create AMI
ok lets say
lets say
this is the AMI
so lets say i have Amazon linux AMI
and this was available in the list of AMI’s
right
so you are using this Amazon linux AMI
to create EC2 Instance
so once the ec2 instance is launched
you have launched ec2 instance using this amazon linux AMI
but this ec2 instance is exactly
absolutely new
its freash
yes or no
so what youll do
youll configure this machine
yourll configure
this machine
this instance
you may update packages
you may update packages
you may launch some application
launch aplication in this machine
so you are making this ec2 instance project ready
you are configuring this ec2 instance
for your project
earlier this ec2 instance was fresh
absolutely fresh
when you launch this machine
this idea is clear
so this is the next step
the first step the launch was done
next step you can configure this machine
now once the machine is configured
one the machine is ready to publish your application
once you see everything is ok
now you’ll use this machine to create AMI
now you can create AMI
now creating AMI
and if you are in
lets say your machine are in
north virginia
what is north virginia
region
lets say your machine was in north virginia and now your machine is ready
and if you are making any AMI using this launched machine
in which region by default
this onfiguration , this AMI is available
offcourse in north virginia
right
or you can say the code is US-east-1
this is the code of north virginia
and you have a new AMI
this is your AMI
this is your AMI
and you can find this AMI in my AMI’s
right
and once you have an AMI
what you can do
number 1
the task is using this AMI
you can create a new machine
new ec2 instance
ec2 instance, in the same way region
number 1
number 2 you can copy
this AMI
to another region
another region
and one more thing
you can share this AMI
you can share the AMI
on either public platform
public platform or share with another aws account holders
another aws account holders
i think the purpose is clear or not
so what you can do
you can do these three tasks
number 1 either using this AMI
if you want to launch a new machine
you can launch
number of similar machines
number of similar machines
number 2, if you want to copy
from one region to another region
definetly you can copy the same AMI
from one region to another region
third if you want to share
this AMI with your team members
working on some different AWS accounts
even we have an option to share this AMI with some different account holders
aws account holders
ok
let me clear you once again
what i did here
you please see number 1
very first
you had this AMI
you had standard amazon linux AMI with you
and you have used this AMI to create one EC2 instance
and this EC2 instance was fresh
first of all you configure this EC2 instance
may be you are configuring this instance
you are updating packages
you are launching some applications
so you are making this machine the project ready
and once this machine is configured
once you feel that the machine is 100% ok tested
it is working fine , you can use this machine to create, now a new AMI
so this is here
we have a new AMI
now
let me clear
let me clear
now once you create this AMI
so this AMI
will use the same
will use the same region
in which your machine are
right
lets say your machine was in north virginia
and you are creating AMI
so automatically this AMI is available in
US-east 1 which is north virginia
now once you have AMI
what you can do with AMI
number 1
you can use the new EC2 instances using AMI
number 2
if you want to copy this AMI from once region to another region
definetly you can do
may be you want to create similar machine in different region
so right now you are in North virginia
and you want to create similar machine
lets say in mumbai
lets say in ohio
so what youll do youll copy this AMI to another region first
and then you can use later on
and third is
you can share theAMI
either to share on this public platform
or if you want to share this AMI With
another AWS account holders
so these are the things
yes, once you have set up your AMI
you have an option to share
yes
are you ok with this
on the top of AMI applications are installed
yes
we are not installing AMI’s in
we are not installing applications in AMI’s
we are installing Applications in machines
and we are using machines to create AMI
that i already explained
just we wanted to know
for example after created my own customized AMI, ok
whatever the configuration i need ok
can i have option to edit like
can i change my password
change the different configuration
for the customized AMI is there any option
ya,ya,ya everything is there
ill tell you the knowledge is the base ill tell you
because AWS is so good
everything is possible, even you can update your AMI
these days people are using CICD pipeline
and in that day use actually kind of things
even not an issue
ill tell teach you means how you can update AMI’s
we have an option here
but this is first level option
right now we are not taking this question
but definitely the question is there we can update it
right, yeah, yes
now, i gonna take 3 labs here
this was the way that i just explained you
what is your AMI
so you had this redimed AMI
Linux AMI
and you have used this AMI to create a new AMI
and this new AMI, includes your updated operating system
your applications
your configuration
may be youll had some data
that you had copied in this instance
will also included in this AMI
right
now, lets start one by one
first of all what im doing
just give me one second
what im doing here
i think one thing is very clear with you people
you can search image
if somebody is asking to search an image for your need
can you search an image
yes orno
right
ok so first of all
im taking lab activity
so what ill do first of all you have launched instance
instance
then youll configure instance
third youll create a new AMI
in the same region
so actually the region have you selected the region
when you launch the instance
lets say i was in north virginia
and youll create here, AMI in north virginia
and once the AMI you have
once the AMI you have
now
what you can do
you can do three things
i already explained you
number 1 you can create a new instance
you can copy the AMI to another region
so creator
creating a new instance
using the AMI, right
five what you can do
you can copy
copy the image
in a new or another region
so youll learn how to copy
the image
from one region to another region
right
because may be machine is in north virginia
and you are also interested
to create a similar kind of machine
lets say in ohio
so what youll do
the machine cannot be copied to one region to another region
machine cannot be copied
so machine is using your compute resources
machine cannot be copied
so machine is using your compute resources
machine cannot be copied
and machine has multiple components
EBS volume and this machine is ready to use in a particular region
so machine cannot be copied from one region to another region
so what youll do so this machine has one AMI
so you are using this machine
so you are using this AMI to create this machine
so what youll do so youll copy this AMI
from one region
lets say region 1
to region 2
right
and once the image is copied
youll use this image to create
a new ec2 instance in ohio region or another region or another region
it is clear
so youll learn here
this activity
yes
one customized AMI will support
who project
and second is
the sixth option im telling you
lets say
my team member are working on different AWS account
and they want me to share the AMI with them
so they want to save time
so they do not want to repeat the same excercise
at their on their aws account
they do not want to create a new EC2 AMI
so what iam doing
as a project lead, i had actually this opportunity to create AMI
now, once i have AMI for that project what ill do
ill share this particular AMI with my team members
so youll learn here
the sharing, the AMI with another AWS a/c owners or holders
right
so these things youll see how you can do
all thse things practically
will it work
AMI’s are just images
AMI’s cannot communicate each other
AMI’s are not machines
AMI’s are the templete of operating system
you use AMI’s to create EC2 instance
to create EC2 instances
if you want to talk to another machine
you need EC2 instances
not AMI
ok
so these are the things
we will do one by one
please let me know
are you clear with this
the steps of this lab
ok

ON EC2 PAGE

so first of all you just confirm
you just confirm you are creating an instances
click on instance
you are selecting linux image
you are using t2.micro
because this configuration is available
free of cost
im taking t2.micro
click on next
and you are on third step
in this step you are selecting
how many number of instances are required
which network you are using
so this is the VPC, default VPC im taking right
youll have only default VPC even in your account
and these are number of availability zones you have
in north virginia we have 6 availability zones
im selecting one availability zone to launch my machine
US-East la
and you want to
actually provide the public IP address
to this machine
yes or no (enable or disable)
that thing you can configure rom here
so i need to enable my public ip address to my ec2 instance
so this setting should be enabled
other wise you wont be able to take remote of this machine
to configure it
ok soo go and next
so this is an ebs based ec2 machine
this its your root volume
and the root volume
and the root volume size is
8 gb
so you can take maximum upto 30 GB
because you are using free tier eligible
now
click on next
this is your tag
you can provide the name to the machine
lets say im providing
my instance
im wiriting
this is my linux instance
and click on next
this is the security
what is the security group
security group is a kind of firewall
so im opening
this the protocol
so port no 22 is open to take the remote of this machine
because this is a linux machine and if you want to add a rule
so let me take port number 80 for http
and you can access it from anywhere
so thats why you are taking anywhere
ya
right
only these two things are there im just configuring only
im opening two ports
one is SSH and another is HTTP
now review and launch
click on review and launch
and this is launch
and here if you want to create a new key pair
you are ok
you just write sai charan paloju
and today is April
its saicharanpaloju02april
and just download the key pair
you have the key pair
in pem format
now finally you launch the instance
once you launch the instance
now you can view the instance
you can view the instance
and this is the instance being launched
once the machine is launched
you can take its remote
configure it as per your required
as i explained you earlier
because once the machine is launched what youll do
youll configure this machine
for your project
yes or no
yes
so once the machine is prepared
once the machine is ready
what youll do
youll just go to connect
first select the machine
now click on connect
and youll select this ec2 instance
connect option
and now finally you connect it
right
so you took the machines remote
very successfully
so without any effort
now youll configure this machine
in order to configure the machine
first of all im switching myself to the root use
sudo su –
and press enter
now you can see that you are in root froant
you write here
who ami
it will tell you that you are root
where exactly you are in the root enter(pwd)-> press enter
inverted root restructured
so you are in the root directory
right now
so first of all i need to update
my operating system here
correct
i need to update my opearting system
in order to update my operating system
so youll run
yum install
so normally youll use username & password to login in to your machine
but in aws
we are not using password
instead of password
we are using this cryptographic keys
so we are creating an keys
so through these keys
we are logging to our machines
right
so instead of password we are using key pair
is it clear
so yum install or you can say
you can update your package
yum update – click eneter
so this way you can update your operating system you have
so say yes
press y
to continue
so you are updating your existing linux operating system you have
so you successfully updated your operating system
number 1
number 2
lets say you want to install
httpd package
right
you just do write
youm install httpd-y
press enter
so httpd package is installed
ok
ok
now you run a command service httpd start
this way you are starting the service
this way you are starting the service
you started the servcie
service httpd start
correct
next is “
once it is started
youll run a command
chkconfig httpd on
what is the purpose of this command
the purpose of this command is to make your service always on
when you are restarting your machine
even if you are restoring your machine
the status of this http will remain on always
other wise it automatically stops
so in oder to just make it on
for next restart
to run this command
chkconfig httpd on
right
so these are the configurations we are doing
so we are in the middle of the configuration we have
what is yum
i think you are new for the linux
right
yum is a actually tool in linux
spectually in red hat linux
as well as in amazon linux
you can use yum to manage your packages
you can install packages
you can remove packages
you can update packages
so in order to run website in your machine
in linux instance
you must have httpd package installed in your machine
you must have in your machine
you must have httpd package
so earlier we had no package in this
so that why i used
yum install httpd
correct
and this is the history
so let me tell you
this is the history if the command
so as of now
we used these much of commands
so what im doing
im just pasting all these commands in check
you can use it
use that
i think you can see
this is not only for you fore everyone
is ti clear

COMMANDS

yum update (updating os)

yum install httpd

service httpd start

checkconfig httpd on

history

so my machine is configured
for httpd
but the index html file is not there
it means that we do not have any package in it
we do not have any website in it
we do not have any application in it
right
so right now im not telling you
how you can upload that application in to this ec2 instance
because that again require some number of steps
which are not yet covered
so what im doing
im just creating one index.html file
right
as an application
will it work
so first of all you just change the directory
“cd/var/www/html/” – command
you should be in var www/html
on order to configure
index.html
so this is the
this is the path
exactly the httpd server
is using
that why you changed the directory
so once you changed the directory
now you can see
you are in var/www/html directory
and if you see
this directory is totally blank
“ls-l” (type this press enter)
this was the list command ls – l
so this directory doesnt contain any file or any application
for any website
correct or not
now
im creating very simmple index.html file
which contains only one line cotent
so is there any input from
from your side what command i should choose to create index.html file
ya this is inbuilt directory
actually when you install
when you install httpd package
it will appear automatically
it will manage by linux by itself
right
so im using “echo” command im wiriting “echo” this is my first managed server on april 2021
this is the line i did write
now i want to tranfer
this line
now i want to tranfer
for transfer im using greater than sign
and then you have to write the name of the file you want to create
index.html
ech” this is my first managed server 04 april 2021″> index.html
there should be any mistake
the reason is very clear
linux is case sensitive
the people who are new for this linux
for this operating system
this information is for them
right
so hit enter
and these were the command
so again im putting history
and again from the begginning
till here im just copying all these commands
right
i think from here till here
there are ok
and im pasting
so these commands are im pasted now
is it clear everyone
now you have commands
so remove this line number 17,18,19
so these were the actually line numbers
so you can remove
pwd is the command
ls -l is command
then the command starts from echo
so you please remove these commands
sorry these numbers
these numbers are not the part of these commands
right
so according to this configuration
you did here
here machine is ready
as a simple web server
which have index.html to publish
now its the time to verify whether the machine is working
is working
that the application is working on this machine
youll go back
to ec2 dashboard
this was the machine
yes or no
my instance
this was the machine
and this machine has both
public as well as private ip address
so this is the public ip address of the machine and this is the private ip address of this machine
and this machine is using a security group
in security group we opened port number 80
as well as the port number 22
you know the port number 22 is used
for to take remote of this machine
because you are using linux operating system on it
and port number 80 is to publish web pages or web content
so what youll do click on details again
copy the public ip address
this is the public ip address of my ec2 instance
you open browser
in your computer
and hit this ip address
and see what happends
and let me know
what did you see
i shared an ip address here
this is an ip address of my web server
you open one browser in your computer
and type this
yes
its showing blank screen
let me see, let me see
ya, its a blank really
you are correct, its a blank
let me see
typing “pwd” – click enter
typing “ls – l” click enter
typing “service.httpd status” – click enter
no its working
index.html
everything is ok
perfect, everything is perfect
from my end
right
and this also is working fine
if you see
typing ls – l click enter
this is good
index.html
there should not be any spelling mistake here
and even apache http server is working
you can see in green color
so this was a command to check the status of my service
command is ” service httpd status”
this is running
and you have this index.html
and in order to actually publish this web page on internet
if you see the port number 80
is also open
ok
so i think protocol should be, let me
check once again
is there any oprtion to
just see
the things were correct or not
i think everything is ok
nothing is wrong
according to everything is ok
ok
so let me check once again
why it is not working
you go to ec2 dashboard
open and select the machine
and this is the public ip address
no need to go into much detail
this is very simple
so what im doing
im restarting the machine
it happens sometimes right you select the machine
and ok
im stopping the machine
if you stop the machine and start the machine
what will happen
the public ip address of this machine will change
right now, you see
public ip address of this machine is
54.157.121.192
right
so if you restart the machine
if you restart the machine
if you started the machine again
and the machine is failed to start something is wrong
why because the machine status
is not yet clear
now the machine is stopping
it is taking time to stop the machine
so let me see
once it is properly stopped
then only you can start the machine and you please run all these commands
yes, definetly
it works, very simple
very simple, configuration i did here
right
just a minute
there is something is wrong here actually
now with platform
i dont know im facing some delay here
it doesnt take much time to stop
when you take its remote
i think i should answer
to you that the what username should be taken
if you are taking the SSH control using aws based browser
or SSH browser
so the machine has been stopped
now start the instance
now the instance has been started
this action has taken
right
and youll see the ip address of the machine will change
and now the ip address of this machine has been changed
i restarted the machine
right
not an issue
the machine is running
this is really great
the machine is running
and this time im
there is something really very fishy
why it is not coming
let me check
im taking remote again
you selected the machine
connect it
while you connected it is uding
which username
can you see it
the username
what username is being used here
ec2-user
right very good
now you connected with the machine
and let me check
the content was poied or not
in that index.html
so what im doing
first of all “sudo su-” click enter
“clear”-click enter
cd/var/www/html/ – and click enter
“ls -l” and click enter(this is the file you had)
(index.html)
and this file has no content saved
(at index.html-> click enter
thats why its blank
i use that
echo”this is my web server 4 april 2021″>index.html
you are tranfferred it to index.html
early it was not saved
i dont know, i skipped some enter
“ls -l” enter
if you list this index.html again
now you can see this time we have 38 bits
now if you go to the browser and refresh the page where you put public IP on web address bar
youll find the answer
and this is really we started the machine
everything was correct
right
now
it is not required
you have not to write actually index.html
you have to write only the IP Address of the machine
and automatically it will take index.html
right now it will work
so it is working for me, it will work for you even
so if im sharing the IP Address you people once again
just confirm me that the machine is working properly
and you can see this machine is working properly
right or wrong
correct its working
so my machine is ready
so my machine is configured
my machine is configured
for my project
my machine is ready
now my machine has packages installed in it
now my machine has
lets say we are considering that
we have one application in it
one website application in it
we are assuming that because we just created index.html
right
so i am not taking very heavy application right now
here at this stage
so here once the machine is ready
now you can use this running machine
to create a new AMI

Smart Cherrys Tech

AWS EC2(Elastic Compute Cloud)

BySmart Cherrys Tech

By Smart Cherrys Tech

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