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Network-based firewalls are positioned on the gateway computers of LANs, WANs and intranets.
As of 2012, the so-called next-generation firewall (NGFW) is a wider or deeper inspection at the application layer.
For example, the existing deep packet inspection functionality of modern firewalls can be extended to include: Firewalls are generally categorized as network-based or host-based.
Packets may be filtered by source and destination network addresses, protocol, source and destination port numbers.
The bulk of Internet communication in 20th and early 21st century used either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) in conjunction with well-known ports, enabling firewalls of that era to distinguish between, and thus control, specific types of traffic (such as web browsing, remote printing, email transmission, file transfer), unless the machines on each side of the packet filter used the same non-standard ports.
The IEEE International Conference on Multimedia Big Data (Big MM), jointly sponsored by the IEEE-TCMC (Technical Committee on Multimedia Computing) and IEEE-TCSEM (Technical Committee on Semantic Computing), is a world’s premier forum of leading scholars in the highly active multimedia big data research, development and applications.
The fifth Big MM conference hosted by the National University of Singapore (NUS), will be held at NUSS Guild House in NUS, Singapore from Septemeber 11 to 13 in 2019.
Second-generation firewalls perform the work of their first-generation predecessors but also maintain knowledge of specific conversations between endpoints by remembering which port number the two IP addresses are using at layer 4 (transport layer) of the OSI model for their conversation, allowing examination of the overall exchange between the nodes.
This type of firewall is potentially vulnerable to denial-of-service attacks that bombard the firewall with fake connections in an attempt to overwhelm the firewall by filling its connection state memory.
Big MM 2019 Proceedings available in IEEE Xplore to the entire scientific community.
Best papers of the IEEE Big MM 2019 will be recommended for publication to a regular call of IEEE Multimedia and invited for publication to the special issues of IJMDEM and IJSC.