hostname -i hostname: unknown host

I have a linux server running on Amazon's EC2. It is unable to resolve it's own host IP address. It has a static IP assigned in a VPC. When I type "hostname" it resolves the name, but "hostname -i" yields unknown host. This is causing some problems for some software.

ifconfig shows the correct IP address and the server is clearly passing traffic to the outside because I can connect to it. I believe I have allowed all traffic through firewalls in an attempt to troubleshoot this.

This server was copied to a VPC from a non VPC instance (this might have something to do with the problem / maybe a config file that needs to be changed, etc).

Linux networking hosts AWS Amazon EC2

asked 10/21/2011 06:50

aseisman ♦♦

7 Answers:

1	you have to setup these values in the /etc/hosts file. Make sure the entry exists in /etc/hosts file Suppose IP address is 192.168.0.1 name alias link answered farzanj

1	This is what I put in my hosts file but it does not work. Previously the IP had been 127.0.0.1 10.0.4.10 localhost localhost.localdomain link answered 2011-10-21 at 04:34:31 aseisman

1	NO. Leave that entry alone 127.0.0.1 localhost localhost.localdomain PUT 10.0.4.10 nameYouWant myHostName.domain.com link answered 2011-10-21 at 04:49:36 farzanj

1	Still not working: 127.0.0.1 localhost localhost.localdomain 10.0.4.10 name name.domain.com link answered 2011-10-21 at 04:54:13 aseisman

1	What does the command do: host name (Where name is the name in the /etc/hosts file) link answered 2011-10-21 at 04:57:12 farzanj

1	This worked, I needed to assign the hostname to the new hosts entry. Thank you for you quick responses and helpful insight. link answered 2011-10-21 at 05:00:59 aseisman

1	Glad it did. Actually the other command is querying the DNS and you don't have the DNS set up. link answered 2011-10-21 at 07:01:58 farzanj

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Amazon ×2
aws ×3
EC2 ×2
hosts ×2
linux ×118
Networking ×59

Asked: 10/21/2011 06:50

Seen: 646 times

Last updated: 10/21/2011 03:03

hostname -i hostname: unknown host

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