Why Frontend server need TCP port 53
- From: "ONG Liang Bu (CSC)" <lbong@xxxxxxxxxx>
- To: "'exchangelist@xxxxxxxxxxxxx'" <exchangelist@xxxxxxxxxxxxx>
- Date: Mon, 11 Nov 2002 21:30:21 +0800
Need an answer for this to the management.
For the Frontend - Backend configuration as this technet article
http://support.microsoft.com/default.aspx?scid=kb;en-us;280132
Management is asking on TCP/UDP port 53 that needs to be open up.
For UDP 53 is the name queries so no issues, but for TCP 53, is asking for
DNS zone
transfer which violate some security issue. Anybody knew why need TCP port
53?
From the article the frontend server is not running DNS and has to go back
to the DC
for DNS queries, stuck in this for the past 2 days, any reason? anyone?
Thanks, much appreciated.
Ong LB
Exchange Admin
National Institute of Education
Nanyang Technological Univeristy
Singapore
This communication (including any attachment) is meant only for the
recipient(s) named above and may contain confidential or legally privileged
information. If you are not an intended recipient, this communication has
been sent to you in error and you must delete all copies of this
communication from your computer system and notify the sender immediately by
reply email. Unauthorised use, disclosure, dissemination, distribution,
retention, copying or reliance on this communication is prohibited and may
attract civil and/or criminal penalties. Thank you.
Other related posts:
