Monitoring Combined Network Interface Channels in Zabbix

I decided to add to Zabbix a check of the number of Combined channels of network interfaces, since when loading the server there could be different situations when my scripts changing their number were not always executed or were executed, but the value was reset during the system startup.

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Upgrading Zabbix 3.2 to 4.2 on Ubuntu

In the test, I’ll upgrade Zabbix Server 3.2 to version 4.2, running on the Ubuntu Server 14.04 operating system, similarly, I can upgrade to version newer 4.2, as well as upgrade older versions of Zabbix, for example 2.0, as well as on the Ubuntu 16.04 and Ubuntu 18.04 operating systems.

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