Faisal Rehman’s Post

Name: Faisal Rehman on LinkedIn: #linux #ubuntu #ec2 #datacenter #linux #sshkeys #authentication #errors…
Uploaded: 2024-06-07T04:46:30.875Z
Duration: 1 min 35 s
Channel: Faisal Rehman

Faisal Rehman

6mo Edited

Server Refused Our Key 🔑 [#linux #ubuntu] OR Server Refused to Connect 🖥 ❌ A really common and annoying error we often get while connecting to the #ec2 ☁ VMs or servers in our on-prem 🏦 #datacenter while we try to connect with SSH keys 🗝 🗝 . Most of the times, its because of the following 4 reasons: 1. Key Pair Format 2. Permissions [.ssh] 3. authorised_keys missing the public key 4. Ownerships of the wrong user I've tried to replicate the above errors on my VM and fixed them accordingly in our practical lab session 👨💻 here: https://lnkd.in/dsUBNTSr Whenever, you get such error in the future, remember it could be due to any of the above reasons. But if you know any other reasons/fixes for the server refused to connect problems, it'd be great sharing in the comment section 🔤 . #linux #sshkeys #authentication #errors #security #connectivity #devops #devopstraining #lab #ec2 #cloud #awsec2 #vmware #VMs #remote #connectivity #servers

Transcript

So guys these are the most 4 common reasons we get server refused over key. So make sure you follow these steps to troubleshoot where your problem exists and I hope that there could be one of these for reason and you will have to fix this. DevOps, Molby and Data you can see that our key has been refused. So I got this error because there is no public key in the authorized key file. So now I will. Paste let's now this is the same public key on my VM and I will. Paste. The public key. On my in my. Authorized key file. And I will. Save. Now I will try to log in again. Open up duplicate session DevOps molvi. And my server has been authenticated. So you can see that if authorized key file does not have that public key. I mean I am using the private and public key pair. The private key I have it on my local VM and the public key should be in the authorized keys file. So you saw that when there was no key in authorized under score keys file we got this error.

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