Zabbix's fping that automatically detects network conditions

Introduction

Zabbix automatic discovery function is relatively simple in terms of configuration process: Discovery and Action. When doing Zabbix automatic discovery verification, the automatic discovery function does not take effect when using the "ICMP ping" check method.

one. environment 1. zabbix environment

Zabbix：zabbix-3.0.1server/agent

2. Configuration environment

Found the local network 172.19.200.1-254, Check: ICMP ping, as follows:

In ICMP ping mode, hosts in UP status are added to the "Discovery hosts" group, as follows:

two. Automatically discover failures 1. Phenomenon

Under the premise that the discovery and action processes of automatic discovery are configured correctly, wait for 10 minutes to observe, and the automatic discovery function will not take effect.

2. Locate the fault

# Found that there is an information record of "the /usr/sbin/fping file cannot be found".
[root@localhost ~]# vim /tmp/zabbix_server.log

1412:20160621:110040.593 /usr/sbin/fping: [2] No such file or directory

3. Failure analysis

"ICMP ping" check method, use the /usr/sbin/fping command to check the status. If the system is not installed or the fping command execution path is wrong, the check method cannot The device is discovered and the automatic discovery function fails.

three. Install and configure fping 1. Install fping

#Compared with ping, fping can ping multiple targets at the same time and has multiple statistical output formats. #fping can currently only be installed through compilation.
[root@localhost ~]# cd /usr/local/src<br> [root@localhost src]# wget http://www.fping.org/dist/fping-3.13.tar.gz<br> [root@localhost src]# tar -zxvf fping-3.13.tar.gz<br> [root@localhost src]# cd fping-3.13<br> [root@localhost fping-3.13]# ./configure<br> [root@localhost fping-3.13]# make && make install

2. Configure fping execution path

#The default fping execution path in the zabbix_server configuration file is commented out. At this time, the default path is: /usr/sbin/fping

#You can configure the execution path of fping as follows:
[root@localhost ~]# sed -i 's|# FpingLocation=/usr/sbin/fping|FpingLocation=/usr/local/sbin/fping|g' /usr/local/zabbix/etc/zabbix_server. conf

#Or do not modify the zabbix_server.conf file, use soft connection ln -s /usr/local/sbin/fping /usr/sbin/fping

3. Configure fping permissions

#fping must be executed by the root user. If fping is executed by a non-root account, the following alarm message will appear when viewing the zabbix_server log:
#21822:20160621:151232.024 fping failed: (null): can't create socket (must run as root?) : Permission denied

#If you install fping with the root account, you don’t need to modify the owner

#But zabbix_server uses the zabbix account to call commands. You can set SUID permissions for fping, as follows:
[root@localhost ~]# chown root:root /usr/local/sbin/fping<br> [root@localhost ~]# chmod u s /usr/local/sbin/fping

Four. verify 1. Verify Discovery

Monitoring--> Discovery--> Discovery rule, select "Local network" (name when creating discovery), as follows:

2. Verify Action

Configuration--> Hosts--> Group, select the "Discovery hosts" group, as follows:

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