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Documentation task
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Resolution: Fixed
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Minor
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None
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4.0.7
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None
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CentOS Linux release 7.4.1708 (Core)
3.10.0-693.17.1.el7.x86_64 GNU/Linux
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Sprint 52 (May 2019)
We're using self-written senders on some dedicated systems. As described in 4 Header we used the example with bash. Sending is done by nc (netcat).
example.sh
DATA='{ "request":"sender data", "data":[ { "host":"host1", "key":"test.item[1]", "value":"0"}] }' printf -v LENGTH '%016x' "${#DATA}" PACK="" for i in {14..0..-2}; do PACK="$PACK\\x${LENGTH:$i:2}"; done printf "ZBXD\1$PACK%s" $DATA | \ nc -v -s 127.0.0.1 127.0.0.1 10051
Executing the code:
# ./example.sh
Ncat: Version 6.40 ( http://nmap.org/ncat )
Ncat: Connected to 127.0.0.1:10051.
Ncat: 218 bytes sent, 0 bytes received in 0.01 seconds.
Zabbix server log says:
zabbix_server.log
Message from 127.0.0.1 is longer than expected 109 bytes. Message ignored.
For some reason the header length is calculated wrong in my example.sh.
Executing the script without nc prints this:
ZBXDm{ZBXDm"request":"senderZBXDmdata",ZBXDm"data":[ZBXDm{ZBXDm"host":"host1",ZBXDm"key":"test.item[1]",ZBXDm"value":"0"}]ZBXDm}
