Nagios监控打印机
Nagios以为其良好的状态检测机制，使Nagios可以利用在不同平台上的不同插件实现监控，当然它也支持使用SNMP协议（简单网络管理协议）实现各个平台和设备的监控，所以Nagios也可以使用SNMP协议来监控局域网内的打印机，Nagios监控打印机是使用check_hpjd工具调用SNMP协议来监控打印机的，在安装好的Nagios中的libexec插件目录下可能没有，是因为服务器上没有安装SNMP协议相关的依赖包net-snmp和net-snmp-utils，所以可以直接用yum或者是apt安装下，再重新编译下nagios-plugins，有一点像Nagios没有安装MySQL时没有check_mysql一样，操作如下：# yum -y install net-snmp net-snmp-utils
# ./configure --with-nagios-user=nagios --with-nagios-group=nagios
# make && make install 此时再看libexec插件目录下就有check_hpjd插件，打印机的监控方式有点类似于Nagios监控Windows上的NSClient++，可以参看http://jim123.blog.运维网.com/4763600/1956790，在Nagios配置好后就有打印的配置模板，同NSClient++中一样修改下模板:
/usr/local/nagios/etc/objects/printer.cfg
define hostgroup{
hostgroup_namenetwork-printers
alias Network Printers
}
########################################################################################
/usr/local/nagios/etc/servers/192.168.1.254.cfg
define host{
use generic-printer ; Inherit default values from a template
host_name hplj200 ; The name we're giving to this printer
alias HP LaserJet 200dn ; A longer name associated with the printer
address 192.168.1.254 ; IP address of the printer
hostgroups network-printers ; Host groups this printer is associated with
contact_groupsadmins
}
define service{
use generic-service ; Inherit values from a template
host_name hplj200 ; The name of the host the service is associated with
service_description Printer Status ; The service description
check_command check_hpjd!-C public ; The command used to monitor the service
check_interval10 ; Check the service every 10 minutes under normal conditions
retry_interval1 ; Re-check the service every minute until its final/hard state is determined
max_check_attempts 2
notifications_enabled 1
}
define service{
use generic-service
host_name hplj200
service_description PING
check_command check_ping!3000.0,80%!5000.0,100%
check_interval10
retry_interval1
max_check_attempts 2
notifications_enabled 1
} 当然如果是多台的话，也可以配置成通用模板，然后根据定义好的cfg_dir去配置多个文件：
/usr/local/nagios/etc/objects/printer.cfg
define host{
name network-printers
check_period 24x7
check_interval 5
retry_interval 1
max_check_attempts 4
check_command check-host-alive
notification_period 24x7
notification_interval 30
notification_options d,r
contact_groups admins
register 0
}
define service{
name network-printers
max_check_attempts 4
normal_check_interval 3
retry_check_interval 1
register 0
check_period 24x7
process_perf_data 1
} 配置好后重启Nagios后就可以实现打印机的监控https://s4.运维网.com/wyfs02/M01/00/0F/wKiom1mVZoyi4kMqAAAau-PMe94393.png-wh_500x0-wm_3-wmp_4-s_483796998.png
如果是不知道局域网内有多少台打印机，则可以通过nmap扫描一下局域内的9100端口就知道
# nmap -p 515 --open 192.168.1.0/24
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