I'm trying to copy file from my local to Aws EC1 or EC2.
my detailed setup.
Created two EC2 instances.
Got .pem file (Private key) from AWS consle.
Generated private key from .pem file (step2).
Able to connect EC1 and EC2 using private key generated in step 3.
Copied .pem file in EC1 and EC2 servers, by doing that am able to copy files in between EC1 and 2 aws servers.
Now I want to copy the file from my local machine to AWS EC1 and EC2 serves.
But when am trying to do below command (using public DNS):
ssh [email protected]
getting below error
Permission denied (publickey)
And when I do it using Private DNS:
ssh [email protected]
getting below error:
ssh: Could not resolve hostname ip-172-31-43-162.us-east-2.compute.internal: Name or service not known
what should I do to fix this or make it work?
Output
OpenSSH_7.2p2 Ubuntu-4ubuntu2.8, OpenSSL 1.0.2g 1 Mar 2016
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "ip-172-31-43-162.us-east-2.compute.internal" port 22
ssh: Could not resolve hostname ip-172-31-43-162.us-east-2.compute.internal: Name or service not known
First thing, ssh [email protected] this will only work within VPC, as its private IP and your local system will never able to resolve this DNS until you connect with some VPN from that VPC.
It's not a security group issue, your instance is reachable.
You should post debugs log for ssh [email protected], you can get debug log using ssh -v [email protected]
But I am sure it's not picking the pem file from right location. Two possible reason
set chmod 400 your.pem and then try to connect
specify the key in your ssh command
ssh -i path_to_key/private.pem [email protected]
Might be possible user ubuntu not exist in that case you can try with root and AWS will return the user which can ssh to that server.
You can also get ssh command for AWS ec2 console. -> Select Instance and click connect, copy the command and try to connect.