🔗 How to Login from One EC2 Linux Server to Another EC2 Linux Server

Hey Hashnode fam! 🌟 Today, I’m excited to share a quick and handy guide on logging into one EC2 Linux server from another. Whether you’re a newbie or a seasoned pro, these steps will help you streamline your cloud operations. Let’s dive in! 🚀

Prerequisites:
1. 🖥️ Two EC2 instances running on AWS.
2. 🔑 SSH key pair used to access your EC2 instances.
3. 📜 Public IP address or private IP address (if both instances are in the same VPC) of the target EC2 instance.

Step-by-Step Guide:

1. Connect to Your First EC2 Instance
First, we need to log into our source EC2 instance using SSH. Open your terminal and type:

ssh -i /path/to/your-key.pem ec2-user@your-ec2-instance-public-ip

2. Copy Your SSH Key to the Source Instance
To login to the second EC2 instance from the first one, we need our SSH key available on the source instance. Use the scp command to transfer your key:

scp -i /path/to/your-key.pem /path/to/your-key.pem ec2-user@your-ec2-instance-public-ip:/home/ec2-user/

3. Set Permissions for the SSH Key 🔐
Once the key is on the source instance, we need to set the correct permissions:

chmod 400 /home/ec2-user/your-key.pem

4. SSH into the Second EC2 Instance 🌐
Now, you can SSH into the second EC2 instance from the first one:

ssh -i /home/ec2-user/your-key.pem ec2-user@target-ec2-instance-ip

And that’s it! You’re now logged into your second EC2 instance. 🎉

Quick Recap:
1. SSH into your first EC2 instance.
2. Copy your SSH key to the first instance.
3. Set the right permissions for your key.
4. SSH from the first instance to the second instance.

Tips & Best Practices:
- Always keep your SSH keys secure. 🔒
- Use Amazon EC2 Instance Connect for a more seamless experience.
- Regularly update your security groups and IAM roles for better security.

I hope you found this guide useful! 💡 If you have any questions or tips of your own, feel free to drop them in the comments below. Let’s keep learning and growing together! 🌱

#AWS #CloudComputing #DevOps #Linux #EC2 #TechTips #LinkedInLearning

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