SSH Cipher Not Accepted

[CChambleeJr]

I have a linux server set up for the purpose of doing daily translations backups from my Avaya CM to the Linux server via SFTP. This process has run reliably for two years, up until a month ago. Backups are now failing. After talking with the Linux server guy, he confirms that the server was updated and patched on the day that the backups began failing. The log entry on the server states:

May 17 13:39:15 BACKUP_Server sshd[17883]:[ID 800047 auth.crit] fatal: matching cipher is not supported: arcfour128
May 17 13:39:16 BACKUP_Server sshd[17889]:[ID 800047 auth.crit] fatal: matching cipher is not supported: arcfour128

Are there options for manipulating the cipher on the Avaya server to get around this error?



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Chuck Chamblee
ACSS (CM) | CTP | A+ ce | Security+ ce

 

[AvayaTier3]

Chuck,
see if you can use sftp or scp from the Avaya to the Linux server without the backups.
problem seems to be the Linux server, not the Avaya server. If you get scp or sftp working,
you could setup your backups again and maybe they will work.

You can try sftp and scp out of the Avaya server and back to the Avaya server to prove the Avaya Linux is not your issue.

A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"

bsh

40 years Bell, AT&T, Lucent, Avaya
Tier 3 for 30 years and counting
[URL unfurl="true"]http://bshtele.com[/url]