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DHCPD : ウィキペディア英語版
DHCPD

dhcpd (an abbreviation for "DHCP daemon") is the name of a program that operates as a daemon on a server to provide Dynamic Host Configuration Protocol (DHCP) service to a network
Clients may solicit an IP address (IP) from a DHCP server when they need one. The DHCP server then offers the "lease" of an IP address to the client, which the client is free to request or ignore. If the client requests it and the server acknowledges it, then the client is permitted to use that IP address for the "lease time" specified by the server. At some point before the lease expires, the client must re-request the same IP address if it wishes to continue to use it.〔

Issued IP addresses are tracked by dhcpd through a record in the dhcpd.leases file.
This allows the server to maintain state over restarts of the dhcp service, which could otherwise lead to duplicate IP addresses being issued when server issued the same IP address again while another client still has the right to use it.
This reference implementation of DHCP is developed by the Internet Systems Consortium and is supported on Linux, Mac OS X, FreeBSD, Solaris, AIX and HP-UX.
Remote access to a running instance of dhcpd is provided by the ''Object Management Application Programming Interface'' (OMAPI). 〔(【引用サイトリンク】url=http://ipamworldwide.com/dhcp-api.html )〕 On the server side, this interface allows for editing of registration information for managed nodes. Uses on the client include fetching configuration information, releasing and renewing leases, and changing which interfaces are managed by the DHCP client.
== See also ==

* Comparison of DHCP server software

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「DHCPD」の詳細全文を読む



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