hi i am using keystone and trying to run instance through cli. but whenever i run the follwing command i got stuck any idea clouduser@clouduser:~/creds$euca-add-keypair demo > demo.priv clouduser@clouduser:~/creds$ chmod 0600 demo.priv clouduser@clouduser:~/creds$euca-describe-keypairs [Errno -2] Name or service not known clouduser@clouduser:~/creds$ euca-describe-images [Errno -2] Name or service not known