RE: About MS-Networking security.

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Date: Tue, 20 Jan 2004 08:37:10 -0500
To: "Dan Bartley" <bartleyd@corp.netcarrier.com>, "Kristi Roose" <kroose@vermeermfg.com>, <focus-ms@securityfocus.com>

What about setting up an "IP hog?" I've seen a setup with a Linux box that
has multiple subnets bound to it's NICs. Basically, you set a whole subnet
(or more) to a card, and then when you want another NIC to have a DHCP lease,
you reduce the range of the DHCP hog by one, and then the new NIC can receive
a lease.

This may be off topic (since it is non-MS) but a spare PII would do the trick
I believe.

//Lawrence Brownlee
//Minor, Bell, and, Neal P.C.



##-----Original Message-----
##From: Dan Bartley [mailto:bartleyd@corp.netcarrier.com]
##Sent: Monday, January 19, 2004 1:24 PM
##To: Kristi Roose; focus-ms@securityfocus.com
##Subject: RE: About MS-Networking security.
##
##
##You can configure DHCP to use reservations and exclude all
##IPs not assigned a reservation. This will keep a dynamic IP
##from being assigned, however it does not prevent someone from
##manually configuring their computer with an unused IP and
##getting on the network.
##
##A firewall and/or middle man like Internet Security and
##Acceleration Server can be used to restrict access based on
##IP. In the case of ISA you can restrict by domain logon too.
##
##Best Regards,
##
##Dan Bartley
##
##-----Original Message-----
##From: Kristi Roose [mailto:kroose@vermeermfg.com]
##Sent: Monday, January 19, 2004 11:04
##To: focus-ms@securityfocus.com
##Subject: RE: About MS-Networking security.
##
##Does anyone have any solutions to keep a user from plugging
##into the LAN from inside the company? Is there a way to
##restrict DHCP addresses by MAC address?
##
##Kristi
##
##
##-----Original Message-----
##From: Depp, Dennis M. [mailto:deppdm@ornl.gov]
##Sent: Friday, January 16, 2004 7:20 PM
##To: Wronski, Michael C (MED); Cyber Chiu`; focus-ms@securityfocus.com
##Subject: RE: About MS-Networking security.
##
##
##Microsoft has a solution where remote users are scanned and
##verified clean before they are allowed to create a remote
##session, either using VPN or dialup. Their solution is based
##on Windows Server 2003. I think Cisco may have a similar
##solution, at least they should. There may be others as well.
##
##Denny
##
##-----Original Message-----
##From: Wronski, Michael C (MED) [mailto:Michael.Wronski@med.ge.com]
##Sent: Thursday, January 15, 2004 5:22 PM
##To: 'Cyber Chiu`'; focus-ms@securityfocus.com
##Subject: RE: About MS-Networking security.
##
##This is a common problem with no single solution. No matter
##what you do, the mobile user is going to be a high risk
##entity. Education of the user of their ability to cause harm
##to their own data and the company network is a great start.
##They need to be aware that their actions can cause
##catastrophic results. After education, the following are the most
##important:
##
##-Install Personal Firewall and AV on all laptops and make
##sure you educate the users on the function of the software.
## -Lock down the configuration so it cant be disabled by the user
## -Enable aggressive live updates (daily) and scans (daily)
##
##-Patching Automation - Before your user leaves the network,
##their laptops should be patched with the more recent OS updates.
##
##-Its best of your laptop users can connect to a "sandbox"
##network on return to the office or if you can separate all
##physical connection that belong to mobile users on a sandbox
##VLAN. This can be difficult to manage depending on your
##current network design.
##
##-M
##
##
##-----Original Message-----
##From: Cyber Chiu` [mailto:cchiu@hotspur.com.hk]
##Sent: Sunday, January 11, 2004 3:26 PM
##To: focus-ms@securityfocus.com
##Subject: About MS-Networking security.
##
##
##
##
##Hi all, I have a question about portable computer security
##concern. My company have firewall protection, all desktop are
##behind firewall. However, My saleman need to do their
##business with a Laptop. When they're in office. They will
##connect their laptop to our internet.
##
##I think it's danger because we don't know it's infected by
##virus or not. can anyone suggest me what to do?
##
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• Previous message: Leon, Mauricio (Toronto): "Local Account Vs Domain Account"
• Maybe in reply to: Cyber Chiu`: "About MS-Networking security."
• Next in thread: Shane Colley: "Microsoft Security (...how to reassure customers of)"
• Reply: Shane Colley: "Microsoft Security (...how to reassure customers of)"
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