> [...] When I start SSH interactive (@TCPIP$SYSTEM:TCPIP$SSH_RUN.COM)
> with debug option it failed when SSH switched to daemon. [...]

   What induced you to run TCPIP$SYSTEM:TCPIP$SSH_RUN.COM interactively? 
(What, exactly, does "start SSH interactive" mean to you?)  If you're
trying to start/stop/investigate some service (like, say, SSH), then you
might do better by sticking with SYS$MANAGER:TCPIP$CONFIG.COM.

> [...] I have no idea of how and when it its broken.

   I have no evidence that it _is_ ("it's"?) "broken".  (My
TCPIP$SYSTEM:TCPIP$SSH_RUN.COM fails just that way, and SSH works here.)

> [...] Networker Client 7.3-4, CIFS Samba and SSH don't work, too now.
> [...]

   I know approximately nothing about the first two, but how, exactly,
does SSH not work?  That is, how does SSH not work when you try
something normal, like, say:
      ssh localhost
or, if that fails for no obvious reason:
      ssh -vvv localhost
?