I am beginner in linux and first time i am going to installation and configure syslog-ng .So, I hope ,will get more help from your side because i am being confuse while reading documentation.first of all i want to mention my requirements.

OS:- centos 6.9

My Requirements:-

1. we have 20 apache webserver ,we are writing apache custom logs or php applications logs in a particular directory ,But directory location is different different for both apache log and php application logs. For example we are writing log in "/usr/local/apache/logs " and apache log format or php application log format are mentioned below .

apche custom logs Fromta:-    abc_access_2018-05-09.log ,abc_error_2018-05-09.log and xyz_access_2018-05-09.log etc..

Php application log format:-   hello_vidoes_20180509.txt , world_music_20180509.txt

2. I want to store these logs of 20 web servers on a centralised server at real time and we  do not want to change logs file and format . Is this possible?

   

3. I want to make 20 web server as client server and centralised server (as host server).

Here ,I can not understand from documentation ,So Can  you provide the configuration for both side client and host side ? 

Client ip:- 192.168.122.184

server IP(centralised):- 192.168.122.61