Проблема с модулем SNMP после установки Zabbix-Proxy Ubuntu 18.04

==> /var/log/zabbix/zabbix_proxy.log <==

Cannot find module (IF-MIB): At line 1 in (none)
MIB search path: $HOME/.snmp/mibs:/usr/share/snmp/mibs:/usr/share/snmp/mibs/iana:/usr/share/snmp/mibs/ietf:/usr/share/mibs/site:/usr/share/snmp/mibs:/usr/share/mibs/iana:/usr/share/mibs/ietf:/usr/share/mibs/netsnmp
Cannot find module (IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)
Cannot find module (SNMPv2-MIB): At line 1 in (none)
Cannot find module (IF-MIB): At line 1 in (none)

Решение

sudo apt-get install snmp-mibs-downloader
sudo download-mibs
sudo sed -i "s/^\(mibs *:\).*/#\1/" /etc/snmp/snmp.conf
sudo service snmpd restart
service snmpd status
service zabbix-proxy restart
service zabbix-proxy status

Также может возникнуть проблема установки пакета snmp-mibs-downloader, то о решении проблемы — ручной установке, можно прочесть по ссылке snmp-mibs-downloader