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Why AMI getting a server refused our key error when I try to connect to my EC2 instance using SSH?
There are multiple reasons why an SSH server (sshd) refuses a private SSH key. The following are some common reasons you might receive this error: You’re using the incorrect user name for your AMI when connecting to your EC2 instance. There are permissions issues on the instance or you’re missing a directory.
How do I fix PuTTY server refused my key?
16 Answers
- generate a key pair with puttygen.exe (length: 1024 bits)
- load the private key in the PuTTY profile.
- enter the public key in ~/.
- chmod 700 ~/.
- chmod 600 ~/.
- chown $USER:$USER ~/.
- change /etc/ssh/sshd_config so it contains AuthorizedKeysFile %h/.
- sudo service ssh restart.
Why is my EC2 instance refused to connect?
Error message: “ssh: connect to host ec2-X-X-X-X.compute-1.amazonaws.com port 22: Connection refused” indicates that the instance refused the connection or the SSH service daemon isn’t running. This error might also occur if a firewall is rejecting access to the instance.
What permissions should Authorized_keys have?
The authorized_keys file should have 644 permissions and be owned by the user. The next time you connect with SSH you should not have to enter your password.
How do you troubleshoot if you Cannot SSH into an instance?
I cannot SSH into my server instance
- Verify that port 22 is open and the OpenSSH Daemon (sshd) is running: telnet servername 22.
- Check your security group setup and make sure it looks like this:
- Verify that your selected SSH client is working properly.
What should the default permissions on the ssh Id_rsa file be set to?
ssh directory permissions should be 700 (drwx——). The public key (. pub file) should be 644 (-rw-r–r–). The private key (id_rsa) on the client host, and the authorized_keys file on the server, should be 600 (-rw——-).
Why is my SSH key refusing to work?
I then try to connect via PuTTY (or stfp using the same key) specifying the new username and .ppk file, but just get told the server has refused our key. In the past I’ve added new keys for the root user successfully, but adding a new user and a key is failing to work.
Why is my SSH server not connecting to CentOS?
I’m a little afraid to change /etc/ssh/sshd_config ListenAddress because I’m afraid I would cut and deny the access of all the other CentOs users on my server. Why is this happening? is it a port issue?
Why do I get ” server refused our key ” error?
I’m receiving the “Server refused our key” error when connecting to my Amazon Elastic Compute Cloud (Amazon EC2) instance using SSH. How can I fix this? There are multiple reasons why an SSH server (sshd) refuses a private SSH key. The following are some common reasons you might receive this error:
Why is my CentOS server refusing to connect?
Last edited by sferreira on Thu Sep 15, 2016 9:20 am, edited 1 time in total. sferreira wrote: I’m a little afraid to change /etc/ssh/sshd_config ListenAddress because I’m afraid I would cut and deny the access of all the other CentOs users on my server. Why? Show us. It would also help to see the server firewall configuration… as root.