I have a Zenoss Core 2.4.5 community edition that has happily served me until now. Recently I updated few machines to Ubuntu 16.04 that does not accept anymore SHA1 keys when handshaking SSH connections. No matter what I change in the collectors, the remote machine returns:
no matching key exchange method found. Their offer: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1 [preauth] : 1 time(s)
I am now updating Zenoss using zenup with the latest patches. Is there a way to change the key used for the handshake?