Re: Netserver SMB V1 and recommendations against ransomware

2017-06-29 15:19 GMT+02:00 DrFranken <midrange@xxxxxxxxxxxx>:

I Get it, IBM hasn't fixed something we consider 'broken'. That happens
sometimes and nobody is happy when that happens. Me included.

BUT Consider it IS Windows that is misbehaving in this case.

That is clear!

The specification for SMB2 declares the function in question to be
OPTIONAL. The IFS in IBM i does not have the needed internals to support
this OPTIONAL function. There fore IBM does not (key: because they cannot)
support this function.

I'm curious why they cannot. Samba also runs officially on i with SMB 2 and
IBM refers to it as an alternative for this OPTIONAL issue:
http://www-01.ibm.com/support/docview.wss?uid=nas8N1021348

So Windows machines insisting on attempting to use the function cause
performance issues by repeatedly banging on the server (IBM i) with this
function.

For Windows 10 there is supposed to be a fix (which I don't have the ID
Handy) and there is also a hotfix provided here (
https://support.microsoft.com/en-us/hotfix/kbhotfix?kbnum=
812669&kbln=en-US) for most other Windows versions.

So far I have only seen fixes for the older systems Win 7 and below. I'll
do a search again.


Best regards,
-Arco