Solved: N7K: %DAEMON-2-SYSTEM_MSG: fatal: no hostkey alg. - Cisco Community

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The Nexus switch outputs the following log once every few months. The source IPv6 address is from overseas, but it looks as if it is trying to make an SSH connection from the outside and failing.
Should I block it with an ACL?

%DAEMON-2-SYSTEM_MSG: fatal: no hostkey alg. Connection from xxxx:xxxx::xxxx:xxxx:xxxx:xxxx. client list =ecdsa-sha2-nistp256.ecdsa2-nistp384,ecdsa-sha2-nistp521　server list = ssh-rsa - dcos_sshd

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- FYI : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtx21848
The outsider is trying to make an SSH connection but no matching SSH algorithm could be found,
good plan to block with ACL,

N,

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

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1 Reply 1

- FYI : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtx21848
The outsider is trying to make an SSH connection but no matching SSH algorithm could be found,
good plan to block with ACL,

N,

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

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