按照zabbix客户端及自定义监控nginx连接状态
一、下载客户端按照包，这里用rpm包安装# rpm -ivh http://repo.zabbix.com/zabbix/3.0/rhel/7/x86_64/zabbix-agent-3.0.4-1.el7.x86_64.rpm修改客户端配置文件
Server=127.0.0.1
ServerActive=127.0.0.1
改为zabbix server实际的IP地址(比如zabbix server的IP地址为10.0.0.100)
Server=10.0.0.100
ServerActive=10.0.0.100
重启zabbix 客户端
# systemctl restart zabbix-agent
二、自定义脚本监控nginx连接状态:
#!/bin/bash
HOST=localhost
PORT="9999"
function active {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| grep 'Active' | awk '{print $NF}'
}
function reading {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| grep 'Reading' | awk '{print $2}'
}
function writing {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| grep 'Writing' | awk '{print $4}'
}
function waiting {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| grep 'Waiting' | awk '{print $6}'
}
function accepts {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| awk NR==3 | awk '{print $1}'
}
function handled {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| awk NR==3 | awk '{print $2}'
}
function requests {
/usr/bin/curl "http://$HOST:$PORT/nginx-status/" 2>/dev/null| awk NR==3 | awk '{print $3}'
}
$1
将脚本存放与脚本目录，注意该目录根据自己情况定义，我这里用rpm 按照zabbix-agent客户端，所以直接放在/etc/zabbix/script目录下
# ll nginx-status.sh
-rwx------ 1 root root 947 Mar 22 10:49 nginx-status.sh
#不要忘了给脚本执行权限
# chmod +x nginx-status.sh
#
# ll nginx-status.sh
-rwxr-xr-x 1 root root 947 Mar 22 10:49 nginx-status.sh
#修改配置文件,在末尾添加如下内容：
# vim zabbix_agentd.conf
...................................省略部分......................................................
### DISK I/O
UserParameter=custom.vfs.dev.read.ops
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$4}'
UserParameter=custom.vfs.dev.read.ms
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$7}'
UserParameter=custom.vfs.dev.write.ops
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$8}'
UserParameter=custom.vfs.dev.write.ms
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$11}'
UserParameter=custom.vfs.dev.io.active
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$12}'
UserParameter=custom.vfs.dev.io.ms
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$13}'
UserParameter=custom.vfs.dev.read.sectors
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$6}'
UserParameter=custom.vfs.dev.write.sectors
[*],cat /proc/diskstats | grep $1 | head -1 | awk '{print $$10}'
######## TCP connections total
UnsafeUserParameters=1
UserParameter=synrecv,/etc/zabbix/script/tcp_connection_status.sh SYNRECV
UserParameter=estab,/etc/zabbix/script/tcp_connection_status.sh ESTAB
UserParameter=timewait,/etc/zabbix/script/tcp_connection_status.sh TIMEWAIT
UserParameter=last_ack,/etc/zabbix/script/tcp_connection_status.sh LAST_ACK
UserParameter=total,/etc/zabbix/script/tcp_connection_status.sh TOTAL
#####Nginx Status
UserParameter=nginx.accepts,/etc/zabbix/script/nginx-status.sh accepts
UserParameter=nginx.handled,/etc/zabbix/script/nginx-status.sh handled
UserParameter=nginx.requests,/etc/zabbix/script/nginx-status.sh requests
UserParameter=nginx.connections.active,/etc/zabbix/script/nginx-status.sh active
UserParameter=nginx.connections.reading,/etc/zabbix/script/nginx-status.sh reading
UserParameter=nginx.connections.writing,/etc/zabbix/script/nginx-status.sh writing
UserParameter=nginx.connections.waiting,/etc/zabbix/script/nginx-status.sh waiting
EnableRemoteCommands=1
然后重启zabbix客户端
# systemctl restart zabbix-agent
# systemctl status zabbix-agent
● zabbix-agent.service - Zabbix Agent
Loaded: loaded (/usr/lib/systemd/system/zabbix-agent.service; disabled; vendor preset: disabled)
Active: active (running) since Wed 2017-03-22 11:03:05 CST; 6min ago
Process: 13613 ExecStop=/bin/kill -SIGTERM $MAINPID (code=exited, status=0/SUCCESS)
Process: 13615 ExecStart=/usr/sbin/zabbix_agentd -c $CONFFILE (code=exited, status=0/SUCCESS)
Main PID: 13617 (zabbix_agentd)
CGroup: /system.slice/zabbix-agent.service
├─13617 /usr/sbin/zabbix_agentd -c /etc/zabbix/zabbix_agentd.conf
├─13618 /usr/sbin/zabbix_agentd: collector
├─13619 /usr/sbin/zabbix_agentd: listener #1
├─13620 /usr/sbin/zabbix_agentd: listener #2
└─13621 /usr/sbin/zabbix_agentd: listener #3
Mar 22 11:03:05 localhost systemd: Starting Zabbix Agent...
Mar 22 11:03:05 localhost systemd: PID file /run/zabbix/zabbix_agentd.pid not readable (yet?) after start.
Mar 22 11:03:05 localhost systemd: Started Zabbix Agent.
#
最后在服务端添加主机对应的监控项，键值为如下字段：
nginx.accepts
nginx.handled
nginx.requests
nginx.connections.active,
nginx.connections.reading
nginx.connections.writing
nginx.connections.waiting
网上看到另外一篇关于tcp连接数的监控转载下来:
http://www.codes51.com/article/detail_341554.html
Tcp的连接状态对于我们web服务器来说是至关重要的，尤其是并发量ESTAB；或者是syn_recv值，假如这个值比较大的话我们可以认为是不是受到了***，或是是time_wait值比较高的话，我们要考虑看我们内核是否需要调优，太高的time_wait值的话会占用太多端口，要是端口少的话后果不堪设想：
监控脚本如下:
#!/bin/bash
#Linux sir
#scripts for tcp status
function SYNRECV {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'SYN-RECV' | awk '{print $2}'
}
function ESTAB {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'ESTAB' | awk '{print $2}'
}
function FINWAIT1 {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'FIN-WAIT-1' | awk '{print $2}'
}
function FINWAIT2 {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'FIN-WAIT-2' | awk '{print $2}'
}
function TIMEWAIT {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'TIME-WAIT' | awk '{print $2}'
}
function LASTACK {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'LAST-ACK' | awk '{print $2}'
}
function LISTEN {
/usr/sbin/ss -ant | awk '{++s[$1]} END {for(k in s) print k,s}' | grep 'LISTEN' | awk '{print $2}'
}
$1
二、填写key值：当然大家在加入key值之后最好再服务器上面去执行看有没有返回值：
# cat /usr/local/zabbix/etc/zabbix_agentd.conf.d/tcp
#monitor tcp
UserParameter=tcp
[*],/usr/local/zabbix/scripts/tcp_status $1
三、导入模板（在我的附件上，然后触发器根据自己的情况调整：）
四、查看效果：
http://image.codes51.com/Article/image/20160229/20160229132324_8652.jpg
到此结束：
在写这篇的时候刚好也写完了监控lvs的活动连接。下面也给出模板、大家自己下载，我这里给出脚本和key：
一、脚本：
#!/bin/bash
#xiaoluo
#status about lvs forward
function first {
/sbin/ipvsadm -L 2>/dev/null | grep '192.168.10.234:http' | sed '2d' | awk '{print $5}'
}
function second {
/sbin/ipvsadm -L 2>/dev/null | grep '192.168.10.235:http' | sed '2d' | awk '{print $5}'
}
function third {
/sbin/ipvsadm -L 2>/dev/null | grep '192.168.10.236:http' | sed '2d' | awk '{print $5}'
}
$1
二、key:
#monitor lvs
UserParameter=lvs
[*],/usr/local/zabbix/scripts/ipvsadm_status $1
效果展示：
http://image.codes51.com/Article/image/20160229/20160229132326_3496.jpg
模板在下面自己下载：
------------------------------------------分割线------------------------------------------
免费下载地址在 http://linux.linuxidc.com/
用户名与密码都是www.linuxidc.com
具体下载目录在 /2015年资料/5月/14日/Zabbix 监控tcp连接的状态/
下载方法见 http://www.linuxidc.com/Linux/2013-07/87684.htm
以上就介绍了Zabbix监控TCP连接数，包括了方面的内容，希望对系统运维有兴趣的朋友有所帮助。
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