User Guide

User’s Guide 139
McAfee Firewall
PPTP: Blocked
This should only be alteredby the administrator.
Other Protocols: Blocked
Ify ou are onan IPX network,y ou should allow "non-IPprotocols". If you use
PPTP,youshouldallow"otherIPprotocols".Askyournetworkadministrator
before making any change here.
Password Protection
While M cAfee Firewall is designed to protect a Windows computer from
unwanted network communication, the security it provides can be
undermined if the configuration can be a ltered. T his is especially easy on
Windows 95 and 9 8.
Th is prob lem is partially address ed by adding pass word protection to the
configuration file . The protectio n is only partial because o nly the operating
system can provide access control, such as is found in Linux and Unix.
When you use a password to protect your configuration:
• The settings cannot be c hanged while McAfee Fire wall is ru nning unless
the c orrect password has been en tered.
• The tamper ing of the configuration f ile will be detected the next ti me
McAfe e Firewall is run, if (and whe n) the p asswo rd is ente red
• If the passwordh as notbeen entered,new networking applicationsw ill be
blocked automatically.
Instructions for Administrators
Configuring Network, Display and Logging Controls
Network Control
This shou ld usually be set t o "Filter Tra f f ic". If it is set to " Block Everything",
thesystemw illnotbeabletocommunicateoveranynetworkdevice.Ifitisset
to "Allow Everything", nothing will be blocked. When it is set to "Filter
Traffic",itcontrols networkcommunicationsaccording to theApplicationand
System settings.