Unbound+Munin自建DNS解析系统

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Unbound+Munin自建DNS解析系统

2024-07-28 07:52:39 217人阅读

Unbound 一款很不错的递归DNS软件，Munin 一款免费的统计软件，可配合apache实现图形化的监控，而且支持unbound的plugin模块，还能监控服务器的各项指标参数。下面介绍Unbound+Munin建站方法。

测试环境：centos 6.4 x86 unbound-1.4.22.tar.gz

【第一部分安装并配置unbound】
（1）解压unbound源码包
（2）进入源码包后执行./configure --prefix=/usr/local/unbound
（3）执行make
（4）执行make install
注意：
a.如果configure时提示：configure: error: OpenSSLdoes not support ECC, needed for GOST support
是因为openssl的版本过低，请用yum 升级本机的openssl
b.操作系统默认安装了expat的rpm包，但是缺少lib库包，所以configure是可能还会提示 configureerror could not find expat h
请安装 expat-devel-2.0.1-11.el6_2.x86_64.rpm
（5）进入/usr/local/unbound目录可看到如下目录
[root@localhost sbin]# cd/usr/local/unbound/
[root@localhost unbound]# ls

etc include lib sbin share
（6）进入etc下执行 wget ftp://ftp.internic.net/domain/named.cache
（7）Vimunbound.conf文件初步修改如下：

interface: 0.0.0.0

port: 53

do-ip4: yes

do-ip6: yes

do-udp: yes

do-tcp: yes

do-daemonize: yes

access-control: 0.0.0.0/0 allow

chroot:"/usr/local/unbound/etc/unbound"

username: "root"

directory:"/usr/local/unbound/etc/unbound"

use-syslog: yes

pidfile:"/usr/local/unbound/etc/unbound/unbound.pid"

root-hints:"/usr/local/unbound/etc/unbound/named.cache"

rrset-roundrobin: yes

minimal-responses: no

control-enable: yes

control-port: 8953

control-key-file:"/usr/local/unbound/etc/unbound/unbound_control.key"

control-cert-file:"/usr/local/unbound/etc/unbound/unbound_control.pem"
（8） cd/usr/local/unbound/sbin
执行./unbound-checkconf/usr/local/unbound/etc/unbound/unbound.conf
确认输出的是no errors in/usr/local/unbound/etc/unbound/unbound.conf
执行./unboun-control-setup
（9）执行./unbound -d -c /usr/local/unbound/etc/unbound/unbound.conf &
ps –ef|grepunbound确认unbound
netstat–nap|grep 53 确认unbound
注意：如果要用unbound-control脚本做控制需要设置环境变量，否则执行./unbound-control start启动进程，提示fatal error: couldnot exec unbound: No such file or directory。
设置方法如下

cd /usr/local/unbound/sbin

vim ~/.bashrc

在最下面增加：exportPATH=/usr/local/unbound/sbin/:$PATH
（10）使用dig @localhost测试域名解析

【第二部分安装并配置Munin】
（1）使用yum安装munin、munin-node、httpd、unbound-munin
[root@localhost plugins]# rpm -qa|grep munin

munin-common-2.0.20-1.el6.noarch

munin-node-2.0.20-1.el6.noarch

munin-2.0.20-1.el6.noarch
unbound-munin-1.4.21-1.el6.noarch
（2）初始化配置munin和httpd
cd /etc/munin
vim munin.conf取消注释如下：

其余配置都保持默认。
cd /etc/httpd/conf.d/
vim munin.conf

保存退出
执行htpasswd -cm /etc/munin/munin-htpasswd zsf设置密码
然后执行/etc/init.d/munin-node start和/etc/init.d/httpd start
查看进程如下

在电脑浏览器上输入http://192.168.187.176/munin

输入用户名zsf和密码

【第三部分配置unbound和munin】
a)配置Unbound确认DNS软件能正常工作。

（1）必须开启remote功能，即能使用unbound-control

b) cd /usr/share/munin/plugins/确认unbound相关plugin都已经安装如下

c)vim unbound然后选择E，编辑脚本内容如下.
指向unbound源码包安装的位置，默认指向的是unbound的rpm包安装位置

d)cd /etc/munin/plugins执行如下软连接命令
ln -s /usr/share/munin/plugins/unbound_munin_by_class /etc/munin/plugins/unbound_munin_by_class
ln -s /usr/share/munin/plugins/unbound_munin_by_flags /etc/munin/plugins/unbound_munin_by_flags
ln -s /usr/share/munin/plugins/unbound_munin_by_opcode /etc/munin/plugins/unbound_munin_by_opcode
ln -s /usr/share/munin/plugins/unbound_munin_by_rcode /etc/munin/plugins/unbound_munin_by_rcode
ln -s /usr/share/munin/plugins/unbound_munin_by_type /etc/munin/plugins/unbound_munin_by_type
ln -s /usr/share/munin/plugins/unbound_munin_histogram /etc/munin/plugins/unbound_munin_histogram
ln -s /usr/share/munin/plugins/unbound_munin_hits /etc/munin/plugins/unbound_munin_hits
ln -s /usr/share/munin/plugins/unbound_munin_memory /etc/munin/plugins/unbound_munin_memory
ln -s /usr/share/munin/plugins/unbound_munin_queue /etc/munin/plugins/unbound_munin_queue