使用 DNS 过程查找 SIP 服务器

会话启动协议 (SIP) 可使用域名服务器 (DNS) 过程,以便客户机能够解析 SIP 统一资源标识 (URI)。

关于此任务

WebSphere® Application Server 支持 RFC 3263 标准。这允许通过 DNS 将 SIP URI 解析为要联系的下一中继段的 IP 地址、端口和传输协议。
注: 在主服务器发生故障的情况下,SIP 不支持使用服务器的 DNS 过程向备份客户机发送响应。

完成以下步骤来将 WebSphere Application Server 配置为支持 RFC 3263 标准。

过程

  1. 启动 WebSphere Application Server
  2. 在管理控制台中,展开服务器,然后单击应用程序服务器 > serverName
  3. 一般属性下面,选中启用通过 DNS NAPTR 记录查找 SIP 服务器复选框,然后填写首选 DNS 服务器名称次要 DNS 服务器名称字段。
  4. 单击应用以保存更改。
  5. 重新启动 WebSphere Application Server

下一步做什么

必须配置 DNS 服务器以使 RFC 3263 支持对 SIP 容器有效。以下示例是 BIND 数据库文件,用于在 DNS 服务器上配置 RFC 3263 支持。

; Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
; Copyright (C) 2001  Internet Software Consortium.
;
; Permission to use, copy, modify, and distribute this software for any
; purpose with or without fee is hereby granted, provided that the above
; copyright notice and this permission notice appear in all copies.
;
; THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
; REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
; AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
; INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
; LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
; OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
; PERFORMANCE OF THIS SOFTWARE.

; $Id: include.db,v 1.2.206.1 2004/03/06 10:22:13 marka Exp $

; Test $INCLUDE current domain name and origin semantics

example.com. 43200 IN SOA ns.example.com. email.example.com. ( 2003032001 10800 3600 604800 86400 )
;
example.com.             43200 IN NS      ns.example.com.
;
ns.example.com.          43200 IN A       10.0.0.20
sipserver1.example.com.  43200 IN A       10.0.0.21
sipserver2.example.com.  43200 IN A       10.0.0.22
sipserver3.example.com.  43200 IN A       10.0.0.23
;
router.example.com.        43200  IN CNAME sipserver3
;
sipserver1.example.com.  43200 IN AAAA    fec0:0:0:0:0:0:0:abcd
sipserver2.example.com.  43200 IN AAAA    fec0:0:0:0:0:0:0:abba
;
_sip._udp.example.com.   43200 IN SRV 2 0 5060  sipserver1.example.com.
_sip._udp.example.com.   43200 IN SRV 2 0 5060  sipserver2.example.com.
_sip._tcp.example.com.   43200 IN SRV 1 4 5060  sipserver1.example.com.
_sip._tcp.example.com.   43200 IN SRV 1 2 5060  sipserver2.example.com.
_sips._tcp.example.com.  43200 IN SRV 0 1 5061  sipserver1.example.com.
_sips._tcp.example.com.  43200 IN SRV 0 0 5061  sipserver2.example.com.
;
example.com. 43200 IN NAPTR 0 0 "s" "SIPS+D2T" "" _sips._tcp.example.com.
example.com. 43200 IN NAPTR 1 0 "s" "SIP+D2T"  "" _sip._tcp.example.com.
example.com. 43200 IN NAPTR 2 0 "s" "SIP+D2U"  "" _sip._udp.example.com.

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