On Sun, Sep 25, 2011 at 2:13 PM, Timothy Murphy gayleard@eircom.net wrote:
I use dyndns's (free) service to access a remote machine with a dynamic IP address. The machine is running under CentOS-6.0.
I can ssh into the address given me by dyndns (*.homelinux.com), but when I do this I get the warning "reverse mapping checking getaddrinfo for" * "failed - POSSIBLE BREAK-IN ATTEMPT!"
This doesn't really matter, as I normally use OpenVPN for accessing this site - the dyndns method is a safety precaution in case openvpn doesn't work.
But I'm wondering if it is possible to stop the warning? I've tried various recipes google gave me, eg adding "UseDNS no" to /etc/ssh/sshd_config on the remote machine (and re-starting sshd), but none of them has worked,
--
Add the DynDNS hostnane to the localmachine, i.e:
192.168.0.10 mybox.homelinux.net
and see if that helps?