Re: netbios over TCP/IP

From: Steven L Umbach (sumbach@ameritech.net)
Date: 04/10/03 

From: "Steven L Umbach" <sumbach@ameritech.net>
Date: Thu, 10 Apr 2003 17:08:41 GMT

     You might want to enable/restart tcp/ip netbios helper service. I
remember reading somewhere that another service was related to it (maybe
dhcp client, which is needed even with static address) even though it was
not listed in dependencies. Congrats on having a firewall. If it is a lone
computer I would recommend just disabling netbios in the wins properties for
the adapter. You need to disable/uninstall file and print sharing (server
service) to see port 445 disappear. I have experienced myself that just
unchecking file and print sharing on the nic properties does not always
work, but disabling the server service or unistalling file and print sharing
would always do the trick and still allow internet access. --- Steve

http://ntsecurity.nu/papers/port445/

"Justin" <mgd24pk@hotmail.com> wrote in message
news:Gifla.44529$IM1.35642@fe04.atl2.webusenet.com...
> I did some reading on securing this port and after disabling this
'feature'
> I lost any and all my network connectivity, period. Only after I
re-enabled
> Netbios over TCP/IP did I get my connections back.
>
> SP3 installed, Linksys tx100 NIC over Dsl. ZoneAlarm firewall.
>
> Methods used to disable NetBIOS:
> TCP/IP properties>advanced>WINS> 'checked' NetBios over TCP/IP -BTW did
> not effect connectivity, although activeports says all NetBIOS ports are
> open.
> Services: Disabled Netbios over TCP/IP helper
> Device Manager: show hidden devices: non-Plug and Play devices:
right-click
> NETBIOS over TCP/IP>select disable>restart
>
> The latter did me in. Also, even though I could not access internet,
> ActivePorts showed port 445 open. Any help here would be appreciated?
>
> TIA
>
>
>

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