[Beowulf] 2nd request for ssh connection problem!!

David B. Anderson danderson at lnxi.com
Tue May 29 12:10:06 PDT 2007

Try turning off the Ethernet off load features of your NICs. I've seen 
offload be broken such that will it works with most stuff but SSH will 
complain for security reasons.

Start with
ethtool -K eth0 tso off


Ruhollah Moussavi Baygi wrote:
> -------------------Dear all at Beowulf,
> As I mentioned in my previous email, I have a problem with ssh 
> connection to our Beowulf cluster. I did put an email in Beowulf 
> mailing list group, but with no answer. It is hard to believe that 
> nobody knows anything about this problem, so, I sent this email for 
> the second time. Following please find the content of my previous 
> Best,
> Ruhollah Moussavi Baygi-------------------
> Hi everybody at Beowulf,
> I have a serious problem with ssh connection to our cluster. Every 
> hint/help/suggestion, which can help me to solve it, is highly 
> appreciated.
> Most of the time, when users want to connect and run their programs 
> from their own PCs, the ssh connection failed, especially during 
> transfer files from/to head-node. Our user's PCs are mainly WindowsXP, 
> so they use packages like SSH Secure Shell for connection and file 
> transfer, or Putty for connection and WinSCP for file transfer.
> The error massage is as follows:
> ' Disconnecting: Corrupted MAC on input'
> or
> ' Disconnecting: bad packet length...',   followed by a long integer.
> This problem has practically made our cluster unusable. So, I would be 
> thankful for any coming advice.
> -- 
> Best,
> Ruhollah Moussavi Baygi
> -- 
> Best,
> Ruhollah Moussavi Baygi
> ------------------------------------------------------------------------
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf

David B. Anderson 
Linux Networx
Sr. Software Engineer
Email: danderson at lnxi.com
Phone: (801) 649-1311

More information about the Beowulf mailing list