There's a lot of scanning for old versions of ssh|openssh lately, because
of some vulnerabilites in them.

read the following for more info
http://www.ciac.org/ciac/bulletins/m-017.shtml

On Fri, 7 Dec 2001, Greg MATTHEWS wrote:

> i am receiving a lot of these in my syslog recently:
> 
> Dec  6 21:24:31 potomac sshd[5294]: Did not receive ident string from 143.107.1
> 65.111.
> 
> from various ip address. should i be worried?
> 
> sshd version OpenSSH_2.5.1 NetBSD_Secure_Shell-20010614
> 
> GREG
> 
> 



diana eichert

"They that can give up liberty to obtain
        a little temporary safety deserve
                neither liberty nor safety"

Benjamin Frankin
1706-1790

For PGP Public key
http://www.swcp.com/~deichert/pgp_public_key.txt