I think you need to do a 'host the-ip-address' to see what the reverse DNS is doing; that seems to be what is causing the problem. On 8/02/2011, at 6:37 PM, Stephen Cox wrote: > It didnt work. > > Here is the logs: > > Feb 7 18:17:25 server sshd[3537]: reverse mapping checking > getaddrinfo for AA-xxx-xxx-xxx-xxx.AAAA.host.com failed - POSSIBLE > BREAKIN ATTEMPT! > Feb 7 18:17:25 server sshd[3537]: User root from xxx.xxx.xxx.xxx not > allowed because not listed in AllowUsers > > But my AllowedUsers has an root@*host.com