NETWORK SECURITY TACTICS
Remote access best practices
Roberta Bragg
02.01.2001
Rating: -3.86- (out of 5)
What permissions should you grant to users of Terminal Services? This tip,
excerpted from Windows 2000 Security, by Roberta Bragg, published by New Riders, gives some hints.
Decisions on the best way to provide remote access will vary depending on the tools you have chosen. Here are some thoughts.
* Install and test RRAS servers before making them IAS (Internet Authentication Services) clients.
* Immediately after installation, back up the IAS database file, ias.mdb, from the %systemroot%system32ias folder.
* Back up the ias.mdb file whenever changes to the IAS configuration are made.
* The IAAS and RRAAS servers should be dedicated servers. This will help
eliminate the possibility that unauthorized users will gain access and weaken
the security configuration.
* Physically secure IAS, VPN and RRAS servers.
* Protect IAS and VPN routers behind a firewall.
* Turn on the account lockout feature.
* Disable authentication protocols you do not use. Do not use PAP (Password
Authentication Protocol) unless you must support legacy systems.
* Determine desired logging for audit purposes and back up IAS logs.
* Do not use telnet.
* Secure remote administration sessions with IPSec or with VPNs if these sessions are being initiated externally to your network.
* Increase encryption levels on Terminal Services when providing remote access.
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