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The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
Ethernet. The Point-to-Point Protocol over Ethernet ( PPPoE) is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet frames. It appeared in 1999, in the context of the boom of DSL as the solution for tunneling packets over the DSL connection to the ISP 's IP network, and from there to the rest of the Internet.
Changing default policy to accept/reject (by issuing a single rule) IP destination address(es) IP source address(es) TCP/UDP destination port(s) TCP/UDP source port(s) Ethernet MAC destination address Ethernet MAC source address Inbound firewall (ingress) Outbound firewall (egress) Trend Micro Internet Security: Yes: Yes: Yes: Yes: Yes: No: No ...
Locus Address Resolution Protocol: 0x5C 92 MTP Multicast Transport Protocol: 0x5D 93 AX.25 AX.25: 0x5E 94 OS KA9Q NOS compatible IP over IP tunneling 0x5F 95 MICP Mobile Internetworking Control Protocol: 0x60 96 SCC-SP Semaphore Communications Sec. Pro 0x61 97 ETHERIP Ethernet-within-IP Encapsulation RFC 3378: 0x62 98 ENCAP Encapsulation Header ...
Zero-configuration networking. Zero-configuration networking ( zeroconf) is a set of technologies that automatically creates a usable computer network based on the Internet Protocol Suite (TCP/IP) when computers or network peripherals are interconnected. It does not require manual operator intervention or special configuration servers.
Google Public DNS. Google Public DNS is a Domain Name System (DNS) service offered to Internet users worldwide by Google. It functions as a recursive name server . Google Public DNS was announced on December 3, 2009, [1] in an effort described as "making the web faster and more secure." [2] [3] As of 2018, it is the largest public DNS service ...
The Online Certificate Status Protocol ( OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. [ 2] It is described in RFC 6960 and is on the Internet standards track. It was created as an alternative to certificate revocation lists (CRL), specifically addressing certain problems associated with ...
RADIUS is a client/server protocol that runs in the application layer, and can use either TCP or UDP. Network access servers, which control access to a network, usually contain a RADIUS client component that communicates with the RADIUS server. [ 1]