Software: nginx/1.23.4. PHP/5.6.40-65+ubuntu20.04.1+deb.sury.org+1 

uname -a: Linux foro-restaurado-2 5.15.0-1040-oracle #46-Ubuntu SMP Fri Jul 14 21:47:21 UTC 2023
aarch64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

Safe-mode: OFF (not secure)

/opt/unified-monitoring-agent/embedded/lib/ruby/gems/3.0.0/gems/fluentd-1.16.5/example/   drwxr-xr-x
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Viewing file:     out_forward_users.conf (1.24 KB)      -rw-r--r--

<source>
  @type sample
  tag test
</source>
<source>
  @type sample
  tag test2
</source>
<source>
  @type sample
  tag test3
</source>

<match test>
  @type forward
  flush_interval 0
  <security>
    self_hostname output.testing.local
    shared_key    secure_communication_is_awesome
  </security>
  <server>
    host 127.0.0.1
    port 24224
    username user1
    password yes_this_is_user1
  </server>
</match>

<match test2>
  @type forward
  flush_interval 0
  <security>
    self_hostname output-alt1.testing.local
    shared_key    secure_communication_is_awesome
  </security>
  <server>
    host 127.0.0.1
    port 24224
    username user1
    password yes_this_is_user1
  </server>
  <server>
    host 127.0.0.1
    port 24224
    username user2
    password yes_this_is_really_user2
  </server>
</match>

<match test3>
  @type forward
  flush_interval 0
  <security>
    self_hostname output-fail.testing.local
    shared_key    secure_communication_is_awesome
  </security>
  <server>
    host 127.0.0.1
    port 24224
    username user3
    password no_there_are_not_such_user
    # input plugin warns authentication erro:
    # [warn]: Authentication failed address="127.0.0.1" hostname="output-fail.testing.local" username="user3"
  </server>
</match>