Bad protocol version identification

[Jojo Castro]

Hi,

My system is running on HP-UX 11.23
Once or twice a month, syslog is reporting the following messages:

Mar 30 01:26:57 PPCN01 sshd[11654]: Bad protocol version identification '\377\373\037\377\373 \377\373\030\377\373'\377\375\001\377\373\003\377\375\003sysops' from UNKNOWN

Apr 25 03:18:13 PPCN01 sshd[824]: Bad protocol version identification '\377\373\037\377\373 \377\373\030\377\373'\377\375\001\377\373\003\377\375\003' from UNKNOWN

Based on my initial investigation, user sysops that is being used by our systems operator, and via secure CRT as console connecting to the system

Questions:
1.) Is this critical?
2.) Is this normal when using secure CRT?
3.) Any recommendation(s) on how to resolve this?

We sysads are using putty as console.

Any standard or recommended software to be use as console?

Thanks in advance!

[Suraj K Sankari]

Hi,
I think its not critical.

Suraj