On 02/08/2011 10:13 AM, Stephen Cox wrote: > On Tue, Feb 8, 2011 at 6:52 PM, Gordon Messmer<yinyang at eburg.com> wrote: >> You'll need to set up DNS properly for this to work. > > It is mobile Broadband... So that will not be not possible. Then I guess the answer is that OpenSSH works and your provider's DNS doesn't. :( You do still have the option of using tcp wrappers. (See man 5 hosts_access). You can create an "allow" rule for sshd for the network that you want, and then "deny" everything else.