Solution for 'wazuh-agentd: ERROR: Invalid server address found: 'MANAGER_IP''

Problem:

Running into the following error when trying to install wazuh-manager / wazuh-agent in Ubuntu 20.04:

Jun 08 17:06:38 sean-VirtualBox env[5409]: /var/ossec/bin/wazuh-logcollector
Jun 08 17:06:38 sean-VirtualBox env[5409]: /var/ossec/bin/wazuh-modulesd
Jun 08 17:06:38 sean-VirtualBox env[5409]: Starting Wazuh v4.3.4...
Jun 08 17:06:38 sean-VirtualBox env[5409]: wazuh-execd already running...
Jun 08 17:06:38 sean-VirtualBox env[5433]: 2022/06/08 17:06:38 wazuh-agentd: ERROR: (4112): Invalid server address found: 'MANAGER_IP'
Jun 08 17:06:38 sean-VirtualBox env[5433]: 2022/06/08 17:06:38 wazuh-agentd: CRITICAL: (1215): No client configured. Exiting.
Jun 08 17:06:38 sean-VirtualBox env[5409]: wazuh-agentd did not start

Solution:

This error indicates that the server.address field in the /var/ossec/etc/ossec.conf file does not contain a valid IP address.

To fix this run the command sudo nano /var/ossec/etc/ossec.conf and change the server.address field to whatever you're server IP address is(127.0.0.1 in my case)

Here the section of the /var/ossec/etc/ossec.conf file where you need to make the change:

...
<client>
    <server>
      <address>127.0.0.1</address>
      <port>1514</port>
      <protocol>tcp</protocol>
    </server>
    <config-profile>ubuntu, ubuntu20, ubuntu20.04</config-profile>
    <notify_time>10</notify_time>
    <time-reconnect>60</time-reconnect>
    <auto_restart>yes</auto_restart>
    <crypto_method>aes</crypto_method>
</client>
...

Hope this solves your issue!

Conclusion

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