What is microsoft-ds port 445?

Greg 'groggy' Lehey grog at FreeBSD.org
Mon Dec 11 15:09:24 PST 2006

On Monday, 11 December 2006 at 11:06:12 -0800, Chuck Swiger wrote:
> On Dec 11, 2006, at 10:43 AM, a at zeos.net wrote:
>> What is microsoft-ds port #445?
> Mildly off-topic for this list, but it's used by directory-services,
> aka "Active Directory"....

I don't know that it's that off-topic.  I don't use Microsoft, but
people bombard me with packets on port 445.

Of course, the way to find this out is:

  $ grep 445 /etc/services
  microsoft-ds    445/tcp
  microsoft-ds    445/udp

On Monday, 11 December 2006 at 12:13:50 -0800, Garrett Cooper wrote:
> Next time, please google. There are a plethora of documents on this topic.
> See <http://www.petri.co.il/what's_port_445_in_w2k_xp_2003.htm> for
> starters.

You can find lots of things on Google, including false leads and
(especially) other people asking the same question.  Many of them
(hopefully not the false leads) refer to messages that have gone by on
this list.  Come back tomorrow and you'll probably find this exchange

In summary: I think this message was on-topic.

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