zabbix加入TCP连接数及状态的监控

一 监控原理：

[[email protected]99 nginx]# /bin/netstat -an|awk ‘/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}‘
TIME_WAIT 50
FIN_WAIT2 2
ESTABLISHED 6
LISTEN 1  
可以使用man netstat查看TCP的各种状态信息描述
ESTABLISHED       socket已经建立连接
CLOSED            socket没有被使用，无连接
CLOSING           服务器端和客户端都同时关闭连接
CLOSE_WAIT        等待关闭连接
TIME_WAIT         表示收到了对方的FIN报文，并发送出了ACK报文，等待2MSL后就可回到CLOSED状态
LAST_ACK          远端关闭，当前socket被动关闭后发送FIN报文，等待对方ACK报文
LISTEN            监听状态
SYN_RECV          接收到SYN报文
SYN_SENT          已经发送SYN报文
FIN_WAIT1         The socket is closed, and the connection is shutting down
FIN_WAIT2         Connection is closed, and the socket is waiting for a shutdown from the remote end.

二 监控脚本：

tcp_conn_status.sh，放在zabbix-agent的应用服务器上/usr/local/zabbix/bin/tcp_conn_status.sh

#!/bin/bash
#this script is used to get tcp and udp connetion status
#tcp status
metric=$1
tmp_file=/tmp/tcp_status.txt
/bin/netstat -an|awk ‘/^tcp/{++S[$NF]}END{for(a in S) print a,S[a]}‘ > $tmp_file  

case $metric in
   closed)
          output=$(awk ‘/CLOSED/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   listen)
          output=$(awk ‘/LISTEN/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   synrecv)
          output=$(awk ‘/SYN_RECV/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   synsent)
          output=$(awk ‘/SYN_SENT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   established)
          output=$(awk ‘/ESTABLISHED/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   timewait)
          output=$(awk ‘/TIME_WAIT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   closing)
          output=$(awk ‘/CLOSING/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   closewait)
          output=$(awk ‘/CLOSE_WAIT/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
        ;;
   lastack)
          output=$(awk ‘/LAST_ACK/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
   finwait1)
          output=$(awk ‘/FIN_WAIT1/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
   finwait2)
          output=$(awk ‘/FIN_WAIT2/{print $2}‘ $tmp_file)
          if [ "$output" == "" ];then
             echo 0
          else
             echo $output
          fi
         ;;
         *)
          echo -e "\e[033mUsage: sh  $0 [closed|closing|closewait|synrecv|synsent|finwait1|finwait2|listen|established|lastack|timewait]\e[0m"  

esac

三 zabbix-agent配置

1、修改tcp_conn_status.sh文件权限：

chmod o+x /usr/local/zabbix/bin/tcp_conn_status.sh

2、在/usr/local/zabbix/etc目录下，创建文件tcp-status-params.conf

vi /usr/local/zabbix/etc/tcp-status-params.conf

3、在tcp-status-params.conf加入以下内容：

UserParameter=tcp.status[*],/usr/local/zabbix/bin/tcp_conn_status.sh $1

4、创建日志文件

vi /tmp/tcp_status.txt

四 重启zabbix-agent服务

/etc/init.d/zabbix_agentd restart

五 添加监控模板

<?xml version="1.0" encoding="UTF-8"?>
<zabbix_export>
    <version>2.0</version>
    <date>2014-12-04T09:41:57Z</date>
    <groups>
        <group>
            <name>Templates</name>
        </group>
    </groups>
    <templates>
        <template>
            <template>Template TCP Connection Status</template>
            <name>Template TCP Connection Status</name>
            <groups>
                <group>
                    <name>Templates</name>
                </group>
            </groups>
            <applications>
                <application>
                    <name>TCP Status</name>
                </application>
            </applications>
            <items>
                <item>
                    <name>CLOSED</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[closed]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>CLOSE_WAIT</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[closewait]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>CLOSING</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[closing]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>ESTABLISHED</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[established]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>FIN_WAIT1</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[finwait1]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>FIN_WAIT2</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[finwait2]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>LAST_ACK</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[lastack]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>LISTEN</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[listen]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>SYN_RECV</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[synrecv]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>SYN_SENT</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[synsent]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
                <item>
                    <name>TIME_WAIT</name>
                    <type>0</type>
                    <snmp_community/>
                    <multiplier>0</multiplier>
                    <snmp_oid/>
                    <key>tcp.status[timewait]</key>
                    <delay>60</delay>
                    <history>90</history>
                    <trends>365</trends>
                    <status>0</status>
                    <value_type>3</value_type>
                    <allowed_hosts/>
                    <units/>
                    <delta>0</delta>
                    <snmpv3_contextname/>
                    <snmpv3_securityname/>
                    <snmpv3_securitylevel>0</snmpv3_securitylevel>
                    <snmpv3_authprotocol>0</snmpv3_authprotocol>
                    <snmpv3_authpassphrase/>
                    <snmpv3_privprotocol>0</snmpv3_privprotocol>
                    <snmpv3_privpassphrase/>
                    <formula>1</formula>
                    <delay_flex/>
                    <params/>
                    <ipmi_sensor/>
                    <data_type>0</data_type>
                    <authtype>0</authtype>
                    <username/>
                    <password/>
                    <publickey/>
                    <privatekey/>
                    <port/>
                    <description/>
                    <inventory_link>0</inventory_link>
                    <applications>
                        <application>
                            <name>TCP Status</name>
                        </application>
                    </applications>
                    <valuemap/>
                </item>
            </items>
            <discovery_rules/>
            <macros/>
            <templates/>
            <screens/>
        </template>
    </templates>
    <triggers>
        <trigger>
            <expression>{Template TCP Connection Status:tcp.status[timewait].last()}>10000</expression>
            <name>There are too many TCP TIME_WAIT status</name>
            <url/>
            <status>0</status>
            <priority>4</priority>
            <description/>
            <type>0</type>
            <dependencies/>
        </trigger>
    </triggers>
    <graphs>
        <graph>
            <name>TCP Status</name>
            <width>900</width>
            <height>200</height>
            <yaxismin>0.0000</yaxismin>
            <yaxismax>100.0000</yaxismax>
            <show_work_period>1</show_work_period>
            <show_triggers>1</show_triggers>
            <type>0</type>
            <show_legend>1</show_legend>
            <show_3d>0</show_3d>
            <percent_left>0.0000</percent_left>
            <percent_right>0.0000</percent_right>
            <ymin_type_1>0</ymin_type_1>
            <ymax_type_1>0</ymax_type_1>
            <ymin_item_1>0</ymin_item_1>
            <ymax_item_1>0</ymax_item_1>
            <graph_items>
                <graph_item>
                    <sortorder>0</sortorder>
                    <drawtype>0</drawtype>
                    <color>C80000</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[closed]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>1</sortorder>
                    <drawtype>0</drawtype>
                    <color>00C800</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[closewait]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>2</sortorder>
                    <drawtype>0</drawtype>
                    <color>0000C8</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[closing]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>3</sortorder>
                    <drawtype>0</drawtype>
                    <color>C800C8</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[established]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>4</sortorder>
                    <drawtype>0</drawtype>
                    <color>00C8C8</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[finwait1]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>5</sortorder>
                    <drawtype>0</drawtype>
                    <color>C8C800</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[finwait2]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>6</sortorder>
                    <drawtype>0</drawtype>
                    <color>C8C8C8</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[lastack]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>7</sortorder>
                    <drawtype>0</drawtype>
                    <color>960000</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[listen]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>8</sortorder>
                    <drawtype>0</drawtype>
                    <color>009600</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[synrecv]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>9</sortorder>
                    <drawtype>0</drawtype>
                    <color>000096</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[synsent]</key>
                    </item>
                </graph_item>
                <graph_item>
                    <sortorder>10</sortorder>
                    <drawtype>0</drawtype>
                    <color>960096</color>
                    <yaxisside>0</yaxisside>
                    <calc_fnc>2</calc_fnc>
                    <type>0</type>
                    <item>
                        <host>Template TCP Connection Status</host>
                        <key>tcp.status[timewait]</key>
                    </item>
                </graph_item>
            </graph_items>
        </graph>
    </graphs>
</zabbix_export>

时间： 2024-07-30 13:33:11

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