In the Advanced TCP/IP properties of NT4 you can enable PPTP filtering or TCP/IP security. I've done this with NT4 VPN servers that use PPTP.
-----Original Message----- From: Ken Coughlin [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 19, 2002 8:24 AM To: NT 2000 Discussions Subject: RE: Securing NT4 on the Internet Two free actions you can take are, keep up to date on all MS security advisories and make your userid's longer and more obscure. It's harder to guess obscure userid's, which would have to be done before a cracker starts working on cracking the password. Ken C. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 18, 2002 10:38 PM To: NT 2000 Discussions Subject: Securing NT4 on the Internet I realise that there is probably many a guide on the best way to go about securing an NT4 server that is directly exposed to the Internet. However, after much ado i've found nothing. The basic issue is that we have an NT4 VPN server which has 2 network cards. One is public, one is private. There is no software or hardware firewall in place and the client is on a budget, so checkpoint is out of the question. The problem arises from attacks by random people on the internet trying to log into their NT4 accounts, failing, and causing the account to become locked. I assume this is because ports 137 and 139 are opened on this external interface. What is the simplest way to close these ports and prevent such dastardly acts from occuring again? Thanking you in advance, Luke. ------ You are subscribed as [EMAIL PROTECTED] Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe send a blank email to %%email.unsub%% ------ You are subscribed as [EMAIL PROTECTED] Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe send a blank email to %%email.unsub%% ------ You are subscribed as [email protected] Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe send a blank email to [EMAIL PROTECTED]
