How to SSH from one Linux EC2 instance to another

This video showcases how to SSH from one Linux EC2 instance to another using the target EC2 instance's Private IP address.
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This channel is run by Namrata Shah (Nam) who is a dynamic passionate technical woman leader and a life long learner. She has over 16+ years of professional information technology consulting experience. Namrata has been receiver of Microsoft’s Prestigious Most Valuable Professional award (MVP) for two consecutive years and was recognized as Virtual Technology Specialist for BizTalk. She has several certifications under her belt including AWS CSAA, PMP (Certified till 2020), CSM, CSPO, CSD, Six Sigma (Green Belt), SAFe and TOGAF 9.1 Foundation certified.

[@rameshselva4812]

Ohhh. Thank you so much namrata. This is what exactly my trainer gave us as a task. He taught with windows servers and gave task in Linux. And I executed successfully from this video. Thank you so much once again.

[@gerried1218]

I have been working on this for the past 6 hours and everywhere I checked did not give me the solution. This is the best solution so far. Thanks very much

[@NamrataHShah]

Glad it helped!

[@sahithipondugula8316]

Thanks alot Namrata!! I was trying this for almost 4 hrs and now finally did!

[@NamrataHShah]

Glad it was helpful

[@shankavaramanagha9672]

Hi Namrata, This is the second time, I have benefitted by watching your video. Thanks a lot! Keep the good work going --- Regards Prashant

[@NamrataHShah]

Glad it helped

[@178pal]

Awesome.. well explained.. I was stuck at this point for more than 3 hours.. Thanks

[@rishisharma6246]

Thank you so much... Stuck on this from 2 days.. Thank you so much..🙏

[@NamrataHShah]

Glad it helped

[@rigobertndifon7518]

wonderfully demonstrated.Thank you NamrataHSHah

[@NamrataHShah]

Glad you liked it!

[@willcalde]

Thank you so much namrata, you are my hero :)

[@yanonirmal]

Thankyou so much for the video well explained !!!

[@sridharreddy2876]

Hi Namrata, thanks for your video Its helped me a lot to understand this issue and resolved for me.

[@NamrataHShah]

Glad it was helpful!

[@vishnu-i8l]

Nice video and it is a understandable way

[@harrysingh6163]

I appreciate the job, great video. Done the job in one go.

[@RahulSingh-sn3er]

TNX for making such imp video, its really very helpful ....

[@ashrafshaik8051]

A very heartful thanks Namrata It's very helpful to me

[@jitendrasena1263]

Thanks Namrata Mam.....i was needed it

[@jaanvaan1468]

I tried same for 2 centos machines in AWS ....but is asking for pem password...But , I haven't set any password for pem file

[@AdityaMoray-y9w]

Hi thank you for the video.Can you SSH without the keypair?

[@VigilanteMian]

Very nicely explained, Namrata.

[@NamrataHShah]

Glad it was helpful

[@kaykann7880]

Well explained. Thanks Namrata baji

[@goldentouch7308]

Thank you

[@rfrancoi]

Thank you for your hard work. Very much appreciated.

[@kartheekbankapalli8437]

Thankyou so much..my doubt clear..❤

[@pullareddykotla9836]

Thank you for making nice video and easly grabed it.

[@rajrajendran410]

Thank you so much ,it was very helpful for me , you taught easy way.

[@juigajjar8672]

It was a great help

[@NamrataHShah]

Glad it helped

[@dhineshprabakaran1786]

Thanks for this valuable sharing. Please continue sharing :-)

[@NamrataHShah]

Thank you, I will

[@famss786]

Thanks - great videoes

[@NamrataHShah]

Thank you

[@TheKartik555]

Hi Namrata thanks for sharing the knowledge it worked, It would be helpful if you can explain on command functionalities as well.

[@NamrataHShah]

Kindly elaborate of command functionalities. I have a few videos on CLI check them out

[@parikshitkudalkar2854]

thanks a lot !! you explained in very easy way !! please keep making videos !!

[@ranjithkumar2034]

Nice info ,, keep doing great work

[@NamrataHShah]

Thank you.

[@edsonsilva8397]

Thank you very much!! You helped me a lot!

[@balajimuthukali7487]

Thanks mam

[@zalakbensureshkumarprajapa1060]

How do I Configure "authorized_keys" for an ssh server and "known_hosts" for an ssh client on each VM instance to allow passphraseless ssh login between two instance.

[@supersaiyan3704]

Thank you so much mam. It worked like a charm

[@NamrataHShah]

Great 👍

[@sivaramanr7781]

Thank you very much, it's really useful

[@NamrataHShah]

Glad it helped

[@dhwanishah4093]

Hi Namrata, Why second time putty asked about Enter passphrase for key"", How to solve that?

[@sainath691]

Thanks you

[@NamrataHShah]

Welcome

[@sivaramakrishnans4133]

thanq mam u saved me

[@NamrataHShah]

Glad it helped

[@phoenix281287]

@NamrataHShah: Will these steps work if I try to SSH from one linux EC2 instance to another in a different VPC?

[@vlsi227]

Hi Namrata Thanks very much for sharing this valuable knowledge. I'm unable connect public ec2 to other private ec2. Can you Give details and how you connected the subnets in two servers.

[@NamrataHShah]

If the subnets are in the same vpc then there is trust established already if not then u need to perform vpc peering and establish trust

[@TheEternalBlizzard]

Can we use it to connect from one instance to another if both are located in *Different Regions* ?! Please confirm. Thanks!

[@kaykann7880]

Hello namrata baji. Problem with ssh to linux ec2c. using putty pageant. my pc-->internet-->ec2-a public(ssh-ok)--->ec2-b private(ssh-ok)----vpc peering----ec2-c private(ssh-access-denied-publickey issue). inbound SG ssh port 22 open for ec2-c. vpc peering active and I can ping to ec2-c. all pkk uploaded to pageant and using check mark "agent forward" in putty. any idea?

[@AmanSingh-xi3xl]

Thanks Namrata- what was the command you used after you connected to the private server from public ? and you created a file in the target server ?

[@shaikaslam6963]

Hi Namrata, I have followed all the steps as you have shown in this video, but at last part after changing the file permission to 600, I'm still getting the permission denied error as below Permission denied (publickey,gssapi-keyex,gssapi-with-mic) Could you please assist me on the same? Thanks

[@pawanshetty5092]

have u got solution for this?

[@mohammedrizwan5359]

Awsome thank you so much

[@DavidBenOtto]

but what if the target has the public IP address? Should the process be the same?

[@mahendrarajgude4070]

Useful video. Thanks

[@tmaiswarya9699]

Hi mam,,I got a question in AWS,in my company two developers (developer A and developer B) they have two instance(instance A and instance B) , developer A can access only instance A and developer B can access only instance B,

[@SohailKhan-qk4gl]

Hi. Why doesn't your target machine have a public IP address?

[@nagarajuboddupally-bw8gw]

hi in target server how can u create without public key. its confused me i connected same i followed ur vedio, i got permission denied i given the chmos 600 filename but it showing same source server only. not connecting to target server

[@sushmitha156]

Hi Namratha can you please show how to ssh 2 instaces of different vpc

[@NamrataHShah]

Methodology is the same as long as the VPCs are peered. Refer to my VPC peering videos.

[@balivadasairaghavahemanth1466]

is this about Connecting private instance with public instance in EC2 linux ??

[@chandureddim4327]

mam, where to learn these commands and what are these commands are these ssh commands or linux commands the same steps are worked for ubuntu to.. please reply me mam what are these commands thank you.. and i just felt got saved from corona mam.thank you..for this mam.

[@arig2519]

Good one

[@sushilmusande9208]

Hello Namratah, Is there any way to connect to target if i lose/replace the source machine aws key? I replaced key of source machine and now i'm not able to ssh to target? Thanking you in advance for your suggestion/Help.😊

[@vamsikrishna2330]

Thanks much.. this helped a lot

[@sunilchaudhari5248]

can u explain if how we can share public key with private instance & connect using public key instead of private key(.pem)?

[@fbsoul1]

thanks

[@NamrataHShah]

You're welcome!

[@shubhamrendalkar6791]

I have connected as u shown bt not able to copy files. Please help me with this issue

[@CoolBishop1997]

very nice tutorial

[@sanketshahane178]

thank u mam for this tutorial..

[@kingstanm8671]

cheers ka, it is quite simple. thanks. peace.

[@aswiniravella8037]

ma'am why we don't have public IP into the target machine.

[@NamrataHShah]

Think and let me know ...

[@GovindPalanisamy1]

Thanks, this is working for me with ec2-user. I have postgres user and trying to do the same way, but errors out. Can you please help me here?

[@NamrataHShah]

This method is for AWS EC2 communication ..

[@adeelshamas3337]

I downloaded the .ppk key used putty to ssh into the source ec2, but can I get .pem file?

[@Noses.]

Can uses this to log from aws linux to another centos 7 server at home

[@pauleingrid]

Is it possible to create 3 instances and deploy on each(database, nodeJs, ANgularjs) and then conect the three of them?

[@i.oawani-mayaki339]

Very simple steps...unfortunately I got "Permission denied (publickey)" as an error message. I followed the steps

[@cyliaselloum8001]

I.O Awani-Mayaki the same error for me

[@jobethagulan8645]

change the chmod option to 400

[@shaikaslam6963]

@@jobethagulan8645 Hi Jobeth, tried changing the file permission to 400, but still, I'm getting the same error as below Permission denied (publickey,gssapi-keyex,gssapi-with-mic)

[@meghamohan799]

Thankyou

[@pidugunagendra8683]

Hi madam will you help me how to provisioning afp2pdf automation server in aws

[@shivananduppar1130]

How to change the private key? If it's exposed to somebody. Can you explain it for us?

[@harshith8227]

Is there any direct way to connect our second instance with the same keypair as first without using that command ??

[@NamrataHShah]

not sure

[@arpangupta2162]

why targetlinuxec2 machine doesn't have public ip address

[@bodob280]

thank you

[@ashrafshaik8051]

Hi Madam could you please explain using git bash also.. with out pemfile

[@NamrataHShah]

will try

[@vipinm655]

MAM,I TRIED TO SSH,BUT ALL TIME IT ASKING FOR PASSPHRASE KEY EVEN I DONT ADDED THE PASSPHRASE ,KINDLY HELP ME

[@dhruvsahu726]

It's great

[@sujalmitra5328]

Please share the process to change the permission of the pem file

[@NamrataHShah]

on linux it is a command --> chmod

[@ShahidulIslamShubo]

hlw i got a problem there are show this message Enter passphrase for key 'newfile': how can i get the passphrase for key Please help me

[@phaniindra6040]

so after doing this can I add these servers into our ansible hosts inventory and run playbook to install any application ?

[@NamrataHShah]

You will need to add the code to login as a part of your script.

[@MuhammadFadhil-wq2te]

yes you can, simply edit /etc/ansible/hosts [Group-Name] ansible_user= ansible_ssh_private_key_file=

[@Techvlogs852]

can you make video on aws route53

[@NamrataHShah]

Will try ... I don't have a registered domain name.

[@jpnaidu1]

Here we are able to connect to Private ip and what what about if we need to connect to public ip?

[@jpnaidu1]

I got answer thx

[@anubhavs103]

@@jpnaidu1 how bro am connecting through public ip and throwing the error permission denied

[@TheSimpleUrbanLife]

Hello Namrata! I did follow the steps and when I try to do ssh from my master with client private IP, it asks me for the password of the client and I don't remember it. Can you please help me with that?

[@NamrataHShah]

I don't know your password.

[@mohdazhar1787]

in nano editor of linux instance pem key is not pasting from notepad how to paste it commands ctrl +v is not working in nano

[@NamrataHShah]

Hit enter or Ctrl U ... Ctrl V is for windows

[@Krishiv11]

how to do SSH if both instance having different "Key pair"- file name ?

[@NamrataHShah]

Name does not matter as long as the key pair is the same

[@nihalshetty6073]

I am getting connection timeout error when I try to do the same.I did change the permission of the file as well ,but still getting the same error.Kindly suggest

[@NamrataHShah]

It is facing issues to connect .. check IP, credentials, security group settings esp. port 22 should be open and the source security group (if different) should have access and check your key.

[@rashmiraoraghavendra105]

Hi Nihal I also faced the same error. Were you able to fix it? If Yes, Can you please let me know what was the issue?

[@niteshchidrawar6553]

permission denied (publickey gssapi-keyex gssapi-with-mic) i tried everything but got this error

[@cragdoo71]

chmod 600

[@AmCoolBuddy]

well. it is working as normal user. But, it is refusing when i am trying as root user error like "Please login as the user "ec2-user" rather than the user "root" " Can you help me please ?

[@NamrataHShah]

To login into ec2 you need to use ec2-user that is the default. You can switch to the root user after you have successfully logged in and need to perform activities of a root user.

[@AmCoolBuddy]

@@NamrataHShah @NamrataHShah Thank you for your reply. I have copied the root pub key in the target node and enable public key access then it works. Actually l am setupin chef infra. So it's required direct root acces to deploy a cookbook. Now its fixed. Really I would like to apprentice your video. It was very useful in the beginnings.

[@kingstanm8671]

btw, how for passcode less authentication between two amz ec2? please explain.

[@NamrataHShah]

Kindly elaborate more

[@kingstanm8671]

@@NamrataHShah If i need passcode less ssh session between two ec2 (for ansible yaml to work) how i can proceed? please assist. i just copied the pub key to the authorised key file and it worked. I want to know if any more methods are there? peace

[@baludev3242]

I'm unable to connect, I don't know why .. I followed your steps .. still not able to connect

[@NamrataHShah]

Debug it … You might have missed something

[@abhishekbhandari6477]

hi there . When i do this it is asking me for the passphrase?????

[@NamrataHShah]

If you create your key with passphrase then you will need to provide it. See if you create a key without the passphrase.

[@abhishekbhandari6477]

I got it the pem file was corrupted. I.e it was not copied properly

[@dhruvsahu726]

You are a problem solver please post your coarse on udemy of aws

[@darabahmadkhan7250]

Mam your voice is not clearly audible plss be bit loud that we can understand words more clearly

[@NamrataHShah]

I believe the voice is loud and clear. Try and increase your volume.