I have a self written zabbix_sender command I have been running in 2.4 of zabbix. We are looking to upgrade to 4.0x. However, I now see that plain text protocol is dropped and headers are now mandatory. We use the input file feature of zabbix_sender. How can i specify the header when the source is the input file? Do I have to have a header on each line of the input file, or is there a command line argument for zabbix_sender to specify the header?
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