LinuxQuestions.org - [SOLVED] ssh to hostname fail

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ssh to hostname fail

Greetings,

I installed Centos-6.2 OS in GPU (Graphical Processing Unit) NVIDIA-tesla C2075. The installation went smoothly. I named my hostname as "abcdef".

After installation I tried to ssh to the server. Something like " ssh abcdef". I get reply as

Quote:

"ssh: Could not resolve hostname abcdef: Name or service not known"

When I do the same thing to my other Ubuntu server I get reply soemthing like

Quote:

vijay@abcd1234:~$ ssh abcd1234
The authenticity of host 'abcd1234 (::1)' can't be established.
RSA key fingerprint is
Are you sure you want to continue connecting (yes/no)?

I need to resolve this issue. Can anyone help?

Many thanks in advance.
Regards

Vijay

It sounds like the host you're trying to SSH from doesn't know what address the other host's name is at. Do you know if you're using a DNS server to map hostnames to IP addresses, or are you just keeping that in your /etc/hosts file?

If you're not sure, then updating /etc/hosts with the hostname and IP address will probably suffice. Any time you type a hostname, your system needs to translate that to an IP address before it can communicate. Most systems use that file to map names to addresses.