Since posting my request for help with turning OFF 'Output Buffering', I managed to locate the file location and the actual location where the setting needs to be turned OFF.
a) File Location
/opt/remi/php56/root/etc/php.ini
I realised that the setting for 'Output_Buffering' appears in 'Line 6' as well as around 'Line 24'
Although the setting in 'Line 6' was set to OFF by default. However the setting in 'Line 24'
is set to ON by default. When I manually set Line 24 to OFF, and after restarting httpd service
the Joomla install warning for the 'recommended setting' cleared up.
Anyone who already has the correct procedure, kindly provide your input.
b) Edit the file
[PHP]
engine
short_open_tag
asp_tags
precision
y2k_compliance
output_buffering = off (line 6)
Near Lin 24 ...
;added stephdl settings
output_buffering = 4096
c) configure php.ini using custom template
Currently I am in the process of figuring out the procedure to turn OFF in line 24 by using the custom template procedure since I read the following instructions not to edit the file 'manually', but to use the template method.
I am documenting the steps I have gone through so that it could help as reference to someone else facing similar issues with the latest version of Joomla 3.6.5 in SME 9x server. I will update here once I have figured out the template method to update the file setting.