建立网站加强家园沟通和联系的做法有何利弊,软件工程的就业前景和就业方向,黑龙江网站建设开发,百度上怎么注册店铺地址一#xff0c;什么是DNSDNS 是计算机域名 (Domain Name System) 的缩写#xff0c;它是由解析器和域名服务器组成的。域名服务器是指保存有该网络中所有主机的域名和对应IP地址#xff0c;并具有将域名转换为IP地址功能的服务器。其中域名必须对应一个IP地址#xff0c;而I…一什么是DNSDNS 是计算机域名 (Domain Name System) 的缩写它是由解析器和域名服务器组成的。域名服务器是指保存有该网络中所有主机的域名和对应IP地址并具有将域名转换为IP地址功能的服务器。其中域名必须对应一个IP地址而IP地址不一定有域名。二DNS安装[rootlinux ~]# yum -y install bind* caching-nameserver三DNS配置[rootlinux ~]# cd /var/named/chroot/etc/[rootlinux etc]# cp -p named.caching-nameserver.conf named.conf[rootlinux etc]# cp -p named.rfc1912.zones named.rfc1912.zones.bak //做好备份注意这里别忘了加上-p,不然文件的所属用户组属性就会改变启动named的时候会报错。看下面[rootlinux etc]# ll |grep named.conf-rw-r----- 1 root named 1206 11-03 17:58 named.conf //加上-p-rw-r----- 1 root root 1206 11-03 19:35 named.conf_bak //不加-p1,配置named.conf[rootlinux etc]# cat named.conf //这个是我改过的文件//// named.caching-nameserver.conf//// Provided by Red Hat caching-nameserver package to configure the// ISC BIND named(8) DNS server as a caching only nameserver// (as a localhost DNS resolver only).//// See /usr/share/doc/bind*/sample/ for example named configuration files.//// DO NOT EDIT THIS FILE - use system-config-bind or an editor// to create named.conf - edits to this file will be lost on// caching-nameserver package upgrade.//options {listen-on port 53 { any; }; //把localhost改成anylisten-on-v6 port 53 { ::1; };directory /var/named;dump-file /var/named/data/cache_dump.db;statistics-file /var/named/data/named_stats.txt;memstatistics-file /var/named/data/named_mem_stats.txt;// Those options should be used carefully because they disable port// randomization// query-source port 53;// query-source-v6 port 53;allow-query { any; };allow-query-cache { any; };};logging {channel default_debug {file data/named.run;severity dynamic;};};view localhost_resolver {match-clients { any; };match-destinations { any; };recursion yes;include /etc/named.rfc1912.zones;};把文件中的localhost改成any。三配置named.rfc1912.zones[rootlinux etc]# cat named.rfc1912.zones// named.rfc1912.zones://// Provided by Red Hat caching-nameserver package//// ISC BIND named zone configuration for zones recommended by// RFC 1912 section 4.1 : localhost TLDs and address zones//// See /usr/share/doc/bind*/sample/ for example named configuration files.//zone . IN {type hint;file named.ca;};zone localdomain IN {type master;file localdomain.zone;allow-update { none; };};zone localhost IN {type master;file localhost.zone;allow-update { none; };};zone 0.0.127.in-addr.arpa IN {type master;file named.local;allow-update { none; };};zone 0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa IN {type master;file named.ip6.local;allow-update { none; };};zone 255.in-addr.arpa IN {type master;file named.broadcast;allow-update { none; };};zone 0.in-addr.arpa IN {type master;file named.zero;allow-update { none; };};zone 51yip.com IN { //从这儿开始到下面是我加的根上面的内容copy后改的type master;file 51yip.com.zone;allow-update { none; };};zone 1.168.192.in-addr.arpa IN {type master;file 1.168.192.in-addr.local;allow-update { none; };};如果是多个域名的话在加一个zone 51yip.net IN {type master;file 51yip.net.zone;allow-update { none; };};三修改Zone的配置文件[rootlinux etc]# cd /var/named/chroot/var/named/[rootlinux named]# cp -p localdomain.zone 51yip.com.zone//[rootlinux named]# cp -p localdomain.zone 51yip.net.zone //如果是多个域名就在copy一份[rootlinux named]# cp -p named.local 1.168.192.in-addr.local1,修改51yip.com.zone[rootlinux named]# cat 51yip.com.zone$TTL 86400 IN SOA localhost root (42 ; serial (d. adams)3H ; refresh15M ; retry1W ; expiry1D ) ; minimumIN NS 51yip.comIN MX 10 mail.51yip.comwww IN A 192.168.1.132mail IN A 192.168.1.131dns IN A 192.168.1.130添加的内容修改的内容对比一下localhost.zone文件2,修改1.168.192.in-addr.local[rootlinux named]# cat 1.168.192.in-addr.local$TTL 86400 IN SOA localhost. root.localhost. (1997022700 ; Serial28800 ; Refresh14400 ; Retry3600000 ; Expire86400 ) ; MinimumIN NS 51yip.com.132 IN PTR www.51yip.com.131 IN PTR mail.51yip.com.130 IN PTR dns.51yip.com.到这儿dns的简单配置就好了。四启动DNS[rootlinux named]# /etc/init.d/named start启动 named [确定]五测试DNS1,正向解释[rootlinux named]# nslookup www.51yip.comServer: 192.168.1.130Address: 192.168.1.130#53Name: www.51yip.comAddress: 192.168.1.1322,反向解释[rootlinux named]# nslookup 192.168.1.131Server: 192.168.1.130Address: 192.168.1.130#53131.1.168.192.in-addr.arpa name mail.51yip.com.
