Context-dependent access control
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Packet-filtering firewall
Router
packet filtering firewallproxy firewall
You need to access the settings on your router.
Stateful firewall checks more than just the ACK flag;it inspects the sequence numbers to ensure the correct state of the TCP session.
Access control list
Discretionary Access Control
1. Internet content filter 2. WFilter NG firewall, free for 50 users.
Share Permission
FIND A NEW SEARCH ENGINE TYPE IT IN THERE SO :-)
static approach
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A statefull firewall.
Security
Integrated firewall.
Classful.