zabbix cant read log file due permission

[mixmox]

hello
zabbix cant read log file due permission error.
im talking about this file:
/var/log/nginx/access_log

the current permission is:
-rw-r--r-- 1 nginx root 377723 Dec 15 23:58 access_log

so ive run these to add zabbix into nginx group:
usermod -a -G nginx zabbix

thin confirm by:
groups zabbix

output:
zabbix : zabbix nginx

and restart zabbix agent.
still zabbix cant read log file with READ permission error

also ive enable AllowRoot in agent config file

[mixmox]

someone in zabbix forum send this to me which solve the problem by adding zabbix into access list:

setfacl -Rm d:g:zabbix:rx,g:zabbix:rx /var/log/nginx/

his/her username is : doogienz

[cyber]

if your file has read permission to all and you still cannot read it... its possibly a directory in front of it, what you cannot enter...
And that was fixed with modifying ACL for that directory...