2023年12月6日发(作者：)

zabbix企业应用之dns监控

一、客户端操作

1.登陆dns部署的服务器，安装zabbix客户端，然后客户端的配置文件里，比如我的是/usr/loca/zabbix/conf/zabbix_里添

加

UserParameter=check_dns[*],/usr/bin/sudo /usr/local/zabbix/bin/zabbix_monitor_ $1

然后在cd /usr/local/zabbix/bin/

添加一个zabbix_monitor_文件，内容为

#!/bin/bash

named_stats='/tmp/named_'

###++ Incoming Requests ++

Incoming_QUERY=`awk '/QUERY/{print $1}' $named_stats`

Incoming_RESERVED9=`awk '/RESERVED9/{print $1}' $named_stats`

###++ Incoming Queries ++

Incoming_A=`grep A $named_stats |awk 'NR==1{print $1}'`

Incoming_SOA=`grep SOA $named_stats |awk 'NR==1{print $1}'`

Incoming_PTR=`grep PTR $named_stats |awk 'NR==1{print $1}'`

Incoming_MX=`grep MX $named_stats |awk 'NR==1{print $1}'`

Incoming_TXT=`grep TXT $named_stats |awk 'NR==1{print $1}'`

Incoming_AAAA=`grep AAAA $named_stats |awk 'NR==1{print $1}'`

Incoming_A6=`grep A6 $named_stats |awk 'NR==1{print $1}'`

Incoming_IXFR=`grep IXFR $named_stats |awk 'NR==1{print $1}'`

Incoming_ANY=`grep ANY $named_stats |awk 'NR==1{print $1}'`

###++ Outgoing Queries ++

Outgoing_A=`grep "" $named_stats |awk 'NR==2{print $1}'`

Outgoing_NS=`grep NS $named_stats |awk 'NR==1{print $1}'`

Outgoing_PTR=`grep PTR $named_stats |awk 'NR==2{print $1}'`

#Outgoing_AAAA=`grep NS $named_stats |awk 'NR==2{print $1}'`

Outgoing_DNSKEY=`grep DNSKEY $named_stats |awk 'NR==1{print $1}'`

Outgoing_ANY=`grep ANY $named_stats |awk 'NR==2{print $1}'`

Outgoing_DLV=`grep DLV $named_stats |awk 'NR==2{print $1}'`

###++ Name Server Statistics ++

Statistics_IPv4_requests=`grep "IPv4 requests received" $named_stats |awk 'NR==1{print $1}'`

Statistics_requests_received=`grep "requests with EDNS(0) received" $named_stats |awk 'NR==1{print $1}'`

Statistics_TCP_requests=`grep "TCP requests received" $named_stats |awk 'NR==1{print $1}'`

Statistics_queries_rejected=`grep "recursive queries rejected" $named_stats |awk 'NR==1{print $1}'`

Statistics_responses_sent=`grep "responses sent" $named_stats |awk 'NR==1{print $1}'`

Statistics_EDNS_sent=`grep "responses with EDNS(0) sent" $named_stats |awk 'NR==1{print $1}'`

Statistics_successful_answer=`grep "queries resulted in successful answer" $named_stats |awk 'NR==1{print $1}'`

Statistics_authoritative_answer=`grep "queries resulted in authoritative answer" $named_stats |awk 'NR==1{print $1}'`

Statistics_non_authoritative_answer=`grep "queries resulted in non authoritative answer" $named_stats |awk 'NR==1{print $1}'`

Statistics_nxrrset=`grep "queries resulted in nxrrset" $named_stats |awk 'NR==1{print $1}'`

Statistics_SERVFAIL=`grep "queries resulted in SERVFAIL" $named_stats |awk 'NR==1{print $1}'`

Statistics_NXDOMAIN=`grep "queries resulted in NXDOMAIN" $named_stats |awk 'NR==1{print $1}'`

Statistics_recursion=`grep "queries resulted in recursion" $named_stats |awk 'NR==1{print $1}'`

Statistics_received=`grep "queries resulted in received" $named_stats |awk 'NR==1{print $1}'`

Statistics_dropped=`grep "queries resulted in dropped" $named_stats |awk 'NR==1{print $1}'`

###++ Resolver Statistics ++

Resolver_sent=`grep "IPv4 queries sent" $named_stats |awk 'NR==1{print $1}'`

Resolver_received=`grep "IPv4 responses received" $named_stats |awk 'NR==1{print $1}'`

#Resolver_NXDOMAIN_received=`grep "" $named_stats |awk 'NR==1{print $1}'`

#Resolver_responses_received=`sed -n '49p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

#Resolver_delegations_received=`sed -n '50p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

Resolver_query_retries=`grep "query retries" $named_stats |awk 'NR==1{print $1}'`

Resolver_query_timeouts=`grep "query timeouts" $named_stats |awk 'NR==1{print $1}'`

Resolver_fetches=`grep "IPv4 NS address fetches" $named_stats |awk 'NR==1{print $1}'`

#Resolver_fetch_failed=`sed -n '54p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

Resolver_validation_attempted=`grep "DNSSEC validation attempted" $named_stats |awk 'NR==1{print $1}'`

Resolver_validation_succeeded=`grep "DNSSEC validation succeeded" $named_stats |awk 'NR==1{print $1}'`

Resolver_NX_validation_succeeded=`grep "DNSSEC NX validation succeeded" $named_stats |awk 'NR==1{print $1}'`Resolver_NX_validation_succeeded=`grep "DNSSEC NX validation succeeded" $named_stats |awk 'NR==1{print $1}'`

Resolver_RTT_10ms=`grep "queries with RTT < 10ms" $named_stats |awk 'NR==1{print $1}'`

Resolver_RTT_100ms=`grep "queries with RTT 10-100ms" $named_stats |awk 'NR==1{print $1}'`

Resolver_RTT_500ms=`grep "queries with RTT 100-500ms" $named_stats |awk 'NR==1{print $1}'`

Resolver_RTT_800ms=`grep "queries with RTT 500-800ms" $named_stats |awk 'NR==1{print $1}'`

Resolver_RTT_1600ms=`grep "queries with RTT 800-1600ms" $named_stats |awk 'NR==1{print $1}'`

#Resolver_RTT_gt_1600ms=`sed -n '63p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

###++ Cache DB RRsets ++

Cache_A=`grep "" $named_stats |awk 'NR==3{print $1}'`

Cache_NS=`grep "" $named_stats |awk 'NR==3{print $1}'`

#Cache_CNAME=`sed -n '69p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

#Cache_SOA=`sed -n '70p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

#Cache_PTR=`sed -n '71p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

Cache_AAAA=`grep "" $named_stats |awk 'NR==2{print $1}'`

Cache_DS=`grep "DS" $named_stats |awk 'NR==1{print $1}'`

Cache_RRSIG=`grep "RRSIG" $named_stats |awk 'NR==1{print $1}'`

Cache_NSEC=`grep "NSEC" $named_stats |awk 'NR==1{print $1}'`

Cache_DNSKEY=`grep "DNSKEY" $named_stats |awk 'NR==2{print $1}'`

#Cache_AAA=`sed -n '77p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

Cache_cDLV=`grep "DLV" $named_stats |awk 'NR==2{print $1}'`

#Cache_NXDOMAIN=`sed -n '79p' $named_stats |sed 's/^[ t]*//g'|cut -d ' ' -f 1`

###++ Socket I/O Statistics ++

Socket_UDP_opened=`grep "UDP/IPv4 sockets opened" $named_stats |awk 'NR==1{print $1}'`

Socket_TCP_opened=`grep "TCP/IPv4 sockets opened" $named_stats |awk 'NR==1{print $1}'`

Socket_UDP_closed=`grep "UDP/IPv4 sockets closed" $named_stats |awk 'NR==1{print $1}'`

Socket_TCP_closed=`grep " TCP/IPv4 sockets closed" $named_stats |awk 'NR==1{print $1}'`

Socket_UDP_established=`grep "UDP/IPv4 connections established" $named_stats |awk 'NR==1{print $1}'`

Socket_TCP_established=`grep "TCP/IPv4 connections accepted" $named_stats |awk 'NR==1{print $1}'`

Socket_TCP_accepted=`grep "TCP/IPv4 recv errors" $named_stats |awk 'NR==1{print $1}'`

eval echo $$1

这个脚本的内容就是监控bind管理工具rndc stats产生的一个dns状态信息文件named_，这个文件的地址是被/etc/

控制，默认是在/var/named/data目录

此脚本给与755权限，zabbix用户与组

chmod 755 /usr/bin/sudo /usr/local/zabbix/bin/zabbix_monitor_

chown zabbix:zabbix /bin/bash /usr/local/zabbix/bin/zabbix_monitor_

然后在crontab里使用root用户添加

*/1 * * * * /bin/bash /usr/local/zabbix/bin/monitor_

/usr/local/zabbix/bin/monitor_的内容为

#!/bin/bash

named_stats='/var/named/data/named_'

if [ -e $named_stats ];then

rm -rf $named_stats

fi

/usr/sbin/rndc stats >>/dev/null 2>&1

mv $named_stats /tmp/

这个脚本的作用是每1分钟运行一次rndc status命令，然后把named_放到tmp目录下，如果在旧目录里已有这个文件就删除（这

样做是因为rndc stats运行后会不断的把信息追加到文件里，而不是覆盖，为了统计方便才删除旧文件，在运行命令生成新文件）

给与脚本755权限

重启zabbix agent服务

ps -ef|grep zabbix|grep -v grep|awk '{print $2}'|xargs kill -9

/usr/local/zabbix/sbin/zabbix_agentd -c /usr/local/zabbix/conf/zabbix_二、zabbix服务端操作

1.在zabbix的web界面里连接监控dns模板

在web里选择配置-模板

然后选择导入

然后把之前下载的dns模板。

然后在选择主机加入这个模板即可。

下面是监控的效果图

1、dns的tcp/udp 53端口的监控

2、Incoming Requests

3、Incoming Queries

4、Outgoing Queries

5、Name Server Statistics

6、Resolver Statistics

7、Cache DB RRsets

8、Socket I/O Statistics

目前监控展示方式为增量变化，所以图上显示的值肯定比named_里的少。建议还是大家自己根据需要来修改与优化，我这个只是

提供一个样例而已，模拟在附件里。