So you saw traffic on port 1270, but none on 22? Can it be that it is being blocked (firewall)?¨
Can you please try what Roger suggested in the post below:
Getting Error while putting unix servers under SCOM monitoring
winrm enumerate http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/SCX_Agent?__cimnamespace=root/scx -username:<Linux user> -password:<Linux Passwd> -r:https://<LInux system>:1270/wsman -auth:basic -skipCACheck -skipCNCheck -skiprevocationcheck -encoding:utf-8
If this works try running without the -skip* options:
winrm enumerate http://schemas.microsoft.com/wbem/wscim/1/cim-schema/2/SCX_Agent?__cimnamespace=root/scx -username:<Linux user> -password:<Linux Passwd> -r:https://<LInux system>:1270/wsman -auth:basic -encoding:utf-8
According to this one:
The target address is unreachable
it is a port iossue with 1270...Have you ensure that the communication on port 1270 reaches the Linux endpoint?
The following blog also suggests port connectivity issues and suggest running a simple port check:
OpsMgr (SCOM) - Unix/Linux Agents Requisites and Troubleshooting
Last, but not least:
nix Monitoring: The WinRM client cannot process the request because the server name cannot be resolved*
Hope somewhere on the way you will find what is wrong.
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