I block all incoming traffic for most of my network. Those that are allowed incoming trafific I do block the ports Bill listed below although I did miss port 1512. Thanks for the info Bill.
Gary ----- Original Message ----- Sent: Friday, August 01, 2003 9:55 AM Subject: Re: [IMail Forum] OT Service sweeps > You really should be blocking inbound, at a minimum, the following Microsoft > services and NetBIOS ports at your boarder routers and/or firewalls: > > netbios-ns 137/tcp nbname #NETBIOS Name Service > netbios-ns 137/udp nbname #NETBIOS Name Service > netbios-dgm 138/udp nbdatagram #NETBIOS Datagram Service > netbios-ssn 139/tcp nbsession #NETBIOS Session Service > microsoft-ds 445/tcp > microsoft-ds 445/udp > ms-sql-s 1433/tcp #Microsoft-SQL-Server > ms-sql-s 1433/udp #Microsoft-SQL-Server > ms-sql-m 1434/tcp #Microsoft-SQL-Monitor > ms-sql-m 1434/udp #Microsoft-SQL-Monitor > wins 1512/tcp #Microsoft Windows Internet Name > Service > wins 1512/udp #Microsoft Windows Internet Name > Service > > Bill To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
