Nagios Support Forum

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[root@centos libexec]# ./check_snmp_netint.pl -H 172.**.**.2 -C public -2 -k -M -w5,5 -c8,8 -n "GigabitEthernet0/1"
GigabitEthernet0/1:UP (0.1MBps/0.0MBps):(1 UP): OK |

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[root@centos libexec]# su - nagios
[nagios@centos ~]$ /usr/local/nagios/libexec/check_snmp_netint.pl -H 172.**.**.2 -C public -2 -k -M -w5,5 -c8,8 -n "GigabitEthernet0/1"
GigabitEthernet0/1:UP (0.1MBps/0.1MBps):(1 UP): OK |

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define command {
        command_name    check_snmp_netint01
        command_line   /usr/local/nagios/libexec/check_snmp_netint.pl -H 172.**.**.2 -C public -2 -k -M -w5,5 -c8,8 -n "GigabitEthernet0/1"
        }

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define service{
        use                     generic-service
        host_name               c1921
        service_description     Ge0/1 Bandwidth
        check_command           check_snmp_netint01
        }

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Ge0/1 Bandwidth   UNKNOWN	10-03-2018 13:57:50	0d 0h 0m 18s	1/3	Can't locate Net/SNMP.pm

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[root@centos ~]# cpan
cpan>install Net::SNMP

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[nagios@centos ~]$ perl -e "use Net::SNMP"
[nagios@centos ~]$
[root@centos ~]# perl -e "use Net::SNMP"
[root@centos ~]#

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yum provides '*/Net/SNMP.pm'
...
File   : /usr/share/perl5/vendor_perl/Net/SNMP.pm

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# ln -s /home/nagios/perl5/lib/perl5/Net/SNMP.pm /usr/share/perl5/vendor_perl/Net/SNMP.pm

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#systemctl restart nagios

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yum install 'perl(Net::SNMP)'