做任務的獎金網(wǎng)站國際實時新聞
二、DNS 部署
環(huán)境介紹
服務器3臺、系統(tǒng)centos
安裝軟件
yum install -y bind bind-utils bind-chrootbind 主包bind-utils 客戶端測試工具（host 、dig 、nslookup）bind-chroot chroot環(huán)境 禁錮dns服務器的工作目錄caching-nameserver(rhel5提供模板文本，緩存服務) rhel6不需要
關閉防火墻
systemctl stop firewalld && setenforce 0
啟動服務
# systemctl start named如果啟動服務沒有工作目錄的文件夾
工作目錄
/var/named/chroot/etc 存放主配置文件/var/named/chroot/var/named
配置文件
備份配置文件
cp /etc/named.conf /etc/named.conf.backup修改配置文件:
[root@wing etc]# vim /etc/named.conf
options {# 監(jiān)聽在主機的53端口上。any代表監(jiān)聽所有的主機listen-on port 53 { any; };listen-on-v6 port 53 { ::1; };# 如果此檔案底下有規(guī)范到正反解的zone file 檔名時，該檔名預設應該放置在哪個目錄底下directory "/var/named";# 下面三項是服務的相關統(tǒng)計信息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";# 誰可以對我的DNS服務器提出查詢請求。any代表任何人allow-query { any; };/* - If you are building an AUTHORITATIVE DNS server, do NOT enable recursion.- If you are building a RECURSIVE (caching) DNS server, you need to enable recursion. - If your recursive DNS server has a public IP address, you MUST enable access control to limit queries to your legitimate users. Failing to do so willcause your server to become part of large scale DNS amplification attacks. Implementing BCP38 within your network would greatlyreduce such attack surface */recursion yes;dnssec-enable yes;dnssec-validation yes;dnssec-lookaside auto;forwarders { # 指定上層DNS服務器（網(wǎng)關）192.168.1.1;};/* Path to ISC DLV key */bindkeys-file "/etc/named.iscdlv.key";managed-keys-directory "/var/named/dynamic";pid-file "/run/named/named.pid";session-keyfile "/run/named/session.key";
};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";
增加zone信息
vim /etc/named.rfc1912.zones
zone "baidu.com" IN { # 定義要解析主域名type master;file "baidu.com.zone"; # 具體相關解析的配置文件保存在 /var/named/baidu.com.zone 文件中
};編輯區(qū)域配置文件
vim /var/named/baidu.com.zone$TTL 1D
@ IN SOA baidu.com. root (1 ; serial1D ; refresh1H ; retry1W ; expire0 ) ; minimumIN NS baidu.com.IN A 192.168.101.1
www IN A 192.168.101.244
test IN A 192.168.101.129
增加權(quán)限 并啟動服務
chown root:named /var/named/baidu.com.zone
systemctl restart named
systemctl enable named
journalctl -xe 查看DNS的運行狀態(tài)