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I just setup a new Ubuntu Server 16.04 with OpenSSH to backup our CM and System Platform via SFTP.
I've been able to backup our CMM; announcements, security files, names, translations etc.. When I try to do the System Platform backup I get this error message: an error occurred while trying to connect to the sftp server (server IP addr). When I look at the log viewer I see this in the message content: An error occurred while trying to connect to xxx.xxx.xxx.xxx with s8800:Algorithm negotiation fail What am I doing wrong or where are my setups wrong? I was previously backing up to an older Windows XP machine using a third party SFTP software. I wasn't having any problems there but I just wanted to retire the WinXP machine. Avaya Aura System platform 5.2.1 w/ Comm Msg Mgr. |
#2
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After a lot of research, reading and trial and error I've got a solution / answer to my problem.
I check'd my ssh log files for errors and found this error; "Oct 26 16:50:31 ubuntu-avbkup sshd[2024]: fatal: Unable to negotiate with xxx.xxx.xxx.56 port 55751: no matching key exchange method found. Their offer: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1 [preauth]" I added the following lines to my sshd_config file; "KexAlgorithms +diffie-hellman-group1-sha1" "KexAlgorithms +diffie-hellman-group-exchange-sha1" I was still getting the "Algorithm negotiation fail" message but I got a different error message in my ssh log file: "Unable to negotiate with xxx.xxx.xxx.56 port 34976: no matching cipher found. Their offer: aes128-cbc,3des-cbc,blowfish-cbc [preauth]" I had to add another line to my sshd_config file: "Ciphers aes128-cbc,3des-cbc,blowfish-cbc" Now my backup files are being uploaded to my Ubuntu Server via SFTP. Last edited by bford54; 10-28-2016 at 02:39 PM. Reason: trying to mark solved |
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