in postfix logs i see lots of these sort of entries
postfix/postscreen[46378]: PREGREET 182 after 0 from
[137.220.233.97]:33196:
\026\245\001\000\261\310\000\000\255\003\003'_\260T\362\266\255\001\370\255\037\003\000\334+\213\364
the backslashed/numeric strings vary from message to message
afaict, postscreen has a perfect batting record here; not a one of them ever
gets past it.
idle curiosity ... what are those strings? command injection attempts, i
presume.
looks like octal expansion, but i haven't managed to translate to
human-readable text form to see what those are
is there a postfix, or related, tool to translate & see?
