DNS
1.[root@localhost ~]# sh yum.sh
yum已完成
关闭防火墙
关闭selinux
2. rpm -qa |grep bin ====>查看有没有安装软件包
3. [root@localhost ~]# yum -y install bind bind-chroot ==>安装软件
4. [root@localhost ~]# rpm -qa |grep -w bind ==》检查所需要的安装包
bind-chroot-9.8.2-0.17.rc1.el6_4.6.x86_64
bind-libs-9.8.2-0.17.rc1.el6_4.6.x86_64
bind-utils-9.8.2-0.17.rc1.el6_4.6.x86_64
bind-9.8.2-0.17.rc1.el6_4.6.x86_64
5. [root@localhost etc]# cd /etc/
6. [root@localhost etc]# cp named.conf named.conf.$(date +%Y%m%d)
7. 配置文件
root@localhost etc]# vim named.conf
Options {
listen-on port 53 { 192.168.1.66; };
// listen-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";
allow-query { any; };
forwarders {202.106.0.20;};
recursion yes;
8. 语法验证
[root@localhost ~]# named-checkconf /etc/named
[root@localhost ~]# /etc/init.d/named start
[root@localhost ~]# /etc/init.d/named start
Generating /etc/rndc.key:
[确定]
启动 named： [确定]
9. 区域数据文件
[root@localhost ~]# ls /var/named/
chroot dynamic named.empty named.loopback
data named.ca named.localhost slaves
[root@localhost ~]# ls /var/named/chroot/
dev etc usr var
[root@www etc]# vim /var/named/named.localhost
10区域数据文件修改后检查
[root@www ~]# named-checkzone www /var/named/named.localhost
zone www/IN: loaded serial 0
OK
配置案例 北京网通
[root@www ~]# vim /etc/named.conf
语法验证
[root@www ~]# named-checkconf /etc/named.conf
[root@www ~]# /etc/init.d/named restart
停止 named：. [确定]
启动 named： [确定]
客户机设置DNS
[root@www ~]# vim /etc/resolv.conf
[root@www ~]# nslookup www.baidu.com
Server: 192.168.1.66
Address: 192.168.1.66#53
Non-authoritative answer:
www.baidu.com canonical name = www.a.shifen.com.
Name: www.a.shifen.com
Address: 61.135.169.125
Name: www.a.shifen.com
Address: 61.135.169.121
10. 根域解析
//
options {
listen-on port 53 { any; };
// listen-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";
allow-query { any; };
forwarders {202.106.0.20;};
recursion yes;
// dnssec-enable no;
// dnssec-validation no;
// dnssec-lookaside auto;
/* Path to ISC DLV key */
bindkeys-file "/etc/named.iscdlv.key";
managed-keys-directory "/var/named/dynamic";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
//zone "." IN {
// type hint;
// file "named.ca";
//};
//include "/etc/named.rfc1912.zones";
//include "/etc/named.root.key";
验证
[root@www ~]# nslookup www.baidu.com
Server: 192.168.1.66
Address: 192.168.1.66#53
Non-authoritative answer:
www.baidu.com canonical name = www.a.shifen.com.
Name: www.a.shifen.com
Address: 61.135.169.125
Name: www.a.shifen.com
11. 模拟误删除的文件内容
拍错语法
1.[root@www ~]# named-checkconf /etc/named.conf
/etc/named.conf:15: missing ';' before 'statistics-file
2. [root@www ~]# tail -f /var/log/messages ==》动态日志
[root@www ~]# /etc/init.d/named restart
停止 named： [确定]
启动 named：
Error in named configuration:
/etc/named.conf:15: missing ';' before 'statistics-file'
[失败]