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Can Target: Changing default policy to accept/reject (by issuing a single rule) IP destination address(es) IP source address(es) TCP/UDP destination port(s)
A next-generation firewall (NGFW) is a part of the third generation of firewall technology, combining a conventional firewall with other network device filtering functions, such as an application firewall using in-line deep packet inspection (DPI) and an intrusion prevention system (IPS).
A web application firewall (WAF) is a specific form of application firewall that filters, monitors, and blocks HTTP traffic to and from a web service.By inspecting HTTP traffic, it can prevent attacks exploiting a web application's known vulnerabilities, such as SQL injection, cross-site scripting (XSS), file inclusion, and improper system configuration. [1]
Free and open-source software portal; ModSecurity, sometimes called Modsec, is an open-source web application firewall (WAF). Originally designed as a module for the Apache HTTP Server, it has evolved to provide an array of Hypertext Transfer Protocol request and response filtering capabilities along with other security features across a number of different platforms including Apache HTTP ...
Application layer filtering operates at a higher level than traditional security appliances. This allows packet decisions to be made based on more than just source/destination IP Address or ports and can also use information spanning across multiple connections for any given host.
Cisco's IPS 4200 Series, which worked as an intrusion prevention system (IPS). Cisco VPN 3000 Series Concentrators, which provided virtual private networking (VPN). The Cisco ASA is a unified threat management device which combines several network security functions.
A stateful firewall keeps track of the state of network connections, such as TCP streams, UDP datagrams, and ICMP messages, and can apply labels such as LISTEN, ESTABLISHED, or CLOSING. [2] State table entries are created for TCP streams or UDP datagrams that are allowed to communicate through the firewall in accordance with the configured ...
[1] [2] Attacks on encrypted protocols such as HTTPS cannot be read by an IDS unless the IDS has a copy of the private key used by the server to encrypt the communication. [3] The IDS won't be able to match the encrypted traffic to signatures if it doesn't account for this.