On 25/08/2017 12:36 PM, Denice wrote:
> On Fri, 25 Aug 2017, Gilbert E. Detillieux wrote:
>
>> I was relying on host-based authentication (using RSA keys) between
>> hosts in a cluster, and since the latest update to openssh under SL7,
>> that seems to no longer work. These are the specific packages that
>> were installed as part of the recent yum update:
>>
>> openssh-7.4p1-11.el7.x86_64.rpm
>> openssh-askpass-7.4p1-11.el7.x86_64.rpm
>> openssh-clients-7.4p1-11.el7.x86_64.rpm
>> openssh-server-7.4p1-11.el7.x86_64.rpm
>>
>> Any ideas why this stopped working? Any ideas what I need to tweak to
>> get it working again?
>
> If this is about sshd using DNS to resolve hostnames then I already posted
> about this issue in the list:
>
> https://listserv.fnal.gov/scripts/wa.exe?A2=ind1708&L=SCIENTIFIC-LINUX-DEVEL&F=&S=&X=1D29DF5D7C661A9346&Y=deatrich%40triumf.ca&P=11202
>
>
> for example, if your ssh_known_hosts file uses hostnames instead of IP
> addresses then it might be the issue - probably worth giving it a quick
> test.
>
> cheers, etc.
> Denice
Yes, that was the issue. I'm not on the SL-devel list, so I hadn't seen
your earlier post.
Thanks for the tip!
--
Gilbert E. Detillieux E-mail: <[log in to unmask]>
Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/
University of Manitoba Phone: (204)474-8161
Winnipeg MB CANADA R3T 2N2 Fax: (204)474-7609