H - Definitions
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H
HAProxy
HAProxy is a high-performance, open source load balancer and reverse proxy for TCP and HTTP applications.
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HDLC (High-level Data Link Control)
HDLC (High-level Data Link Control) is a group of protocols or rules for transmitting data between network points (sometimes called nodes).
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HELLO packet
A HELLO packet is a special data packet (message) that is sent out periodically from a router to establish and confirm network adjacency relationships to other routers in the Open Shortest Path First (OSPF) communications protocol.
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home server
A home server is a computer that functions as a server in a client-server home network.
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host (in computing)
A host is a computer or other device that communicates with other hosts on a network.