Re: [CentOS] ssh reverse DNS failure

2011-09-26 Thread Rudi Ahlers 
On Sun, Sep 25, 2011 at 2:13 PM, Timothy Murphy gayle...@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?



-- 
Kind Regards
Rudi Ahlers
SoftDux

Website: http://www.SoftDux.com
Technical Blog: http://Blog.SoftDux.com
Office: 087 805 9573
Cell: 082 554 7532
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[CentOS] ssh reverse DNS failure

2011-09-25 Thread Timothy Murphy 
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,


-- 
Timothy Murphy  
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland

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