From: Thomas Markwalder Date: Mon, 9 Dec 2019 15:47:38 +0000 (-0500) Subject: [#28] Clarify that domain names are only resolved once X-Git-Tag: v4_4_2b1~2 X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=48148b595eecdedb1a1f4b816c4c0d15cfd62f7e;p=thirdparty%2Fdhcp.git [#28] Clarify that domain names are only resolved once common/dhcp-options.5 - added text to ip-address value section. --- diff --git a/common/dhcp-options.5 b/common/dhcp-options.5 index 33d480439..6fae9805c 100644 --- a/common/dhcp-options.5 +++ b/common/dhcp-options.5 @@ -1,6 +1,6 @@ .\" $Id: dhcp-options.5,v 1.50 2011/05/20 13:48:32 tomasz Exp $ .\" -.\" Copyright (c) 2004-2018 by Internet Systems Consortium, Inc. ("ISC") +.\" Copyright (c) 2004-2019 by Internet Systems Consortium, Inc. ("ISC") .\" Copyright (c) 1996-2003 by Internet Software Consortium .\" .\" Permission to use, copy, modify, and distribute this software for any @@ -53,7 +53,14 @@ The data type can be entered either as an explicit IP address (e.g., 239.254.197.10) or as a domain name (e.g., haagen.isc.org). When entering a domain name, be sure that that -domain name resolves to a single IP address. +domain name resolves to a single IP address. Additionally, please +note the software (dhcpd or dhclient) will only attempt to resolve +the domain name the first time the option is needed. For example, if +the next-server option is defined as a domain name, dhcpd will +attempt to resolve it while responding to the first client query +dhcpd receives after startup. Should the domain's address subsequently +change, the software has to be restarted in order to pick up the +change. .PP The .B ip6-address