Problem with zabbix agentom, how to solve?

Question

Zabbix

There is a test bench in 2VM.
1st debian (192.168.153.162) zabbix-server zabbix-agent is installed on it, the lemp stack, the database is created, everything is fine. The web interface is up and running.
2nd one is also debian(192.168.153.163) only zabbix-agent is installed.

Configuration file zabbix-agent.conf (2nd VM)

Server=192.168.153.162
ServerActive=192.168.153.162

Added IP zabbix-server'a
log file

[email protected]:/etc/zabbix# tail -F /var/log/zabbix/zabbix_agentd.log
  2018:20160301:062703.481 IPv6 support:          YES
  2018:20160301:062703.481 TLS support:           YES
  2018:20160301:062703.481 **************************
  2018:20160301:062703.481 using configuration file: /etc/zabbix/zabbix_agentd.conf
  2018:20160301:062703.481 agent #0 started [main process]
  2023:20160301:062703.482 agent #5 started [active checks #1]
  2022:20160301:062703.484 agent #4 started [listener #3]
  2021:20160301:062703.486 agent #3 started [listener #2]
  2020:20160301:062703.488 agent #2 started [listener #1]
  2019:20160301:062703.490 agent #1 started [collector]

Where to dig?

Answer 1

From server 192.168.153.162 dozabbix_get -s 192.168.153.163 -k agent.ping

Answer 2

Listen IP on the agent which is specified in the config?