Packet filters are not susceptible to IP spoofing.
Packet filters perform almost all the tasks of a high-end firewall at a fraction of the cost
Packet filters provide an initial degree of security at the data-link and network layer.
Packet filters represent a complete firewall solution.
aaa accounting exec start-stop group tacacs+
aa accounting connection start-stop group radius
aaa accounting connection start-stop group tacacs+
aaa accounting exec start-stop group radius
allows a new TCP session to be established for every authorization request
allows the device to establish only a single connection with the AAA-enabled server
authorizes connections based on a list of IP addresses configured in an ACL on a Cisco ACS server
allows a Cisco ACS server to minimize delay by establishing persistent TCP connections [adef]
Keep a secure copy of router operating system images.
Configure the router with the maximum amount of memory possible.
Disable default router services that are not necessary.
Reduce the number of ports that can be used to access the router.
It uses UDP port 500 to exchange IKE information between the security gateways.
It allows for the transmission of keys directly across a network.
The purpose of IKE Phase 2 is to negotiate a security association between two IKE peers.
IKE Phase 1 can be implemented in three different modes: main, aggressive, or qu
Traffic that is sent from the DMZ and the LAN to the Internet is considered outbound
Traffic that is sent from the LAN and the Internet to the DMZ is considered inbound.
Traffic that is sent from the LAN to the DMZ is considered is considered inbound.
Traffic that is sent from the DMZ and the Internet to the LAN is considered outbound.
The code contains no errors.
The code is authentic and is actually sourced by the publisher.
The code was encrypted with both a private and public key
The code has not been modified since it left the software publisher.
The code contains no viruses.
uses connection information maintained in a state table
analyzes traffic at Layers 3, 4 and 5 of the OSI model
uses complex ACLs which can be difficult to configure
prevents Layer 7 attacks
uses static packet filtering techniques
can be implemented as software or as a service
uses penetration testing to determine most network vulnerabilities
consolidates duplicate event data to minimize the volume of gathered data
provides real-time reporting for short-term security event analysis
Microsoft port scanning tool designed for Windows
examines logs and events from systems and applications to detect security threats [adef]
DMZ to inside
public Internet to inside
inside to DMZ [adef]
public Internet to DMZ
reset TCP connection
reset UDP connection
选择要在Apple App Store上查看的Topgrade应用程序。