phpMyAdmin configuration to allow remote access

First, check the Apache version with:

rpm -q httpd

or

yum list installed httpd

Then, modify the appropriate sections of the config file

/etc/httpd/conf.d/phpMyAdmin.conf::

<Directory /usr/share/phpMyAdmin/>
   <IfModule mod_authz_core.c>
     # Apache 2.4
     <RequireAny>
       Require all granted       <-- add this line for Apache 2.4
       Require ip 127.0.0.1
       Require ip ::1
     </RequireAny>
   </IfModule>
   <IfModule !mod_authz_core.c>
     # Apache 2.2
     Order Deny,Allow
#     Deny from All             <-- or comment out this line for Apache 2.2
     Allow from 127.0.0.1
     Allow from ::1
   </IfModule>
</Directory>

<Directory /usr/share/phpMyAdmin/setup/>
   <IfModule mod_authz_core.c>
     # Apache 2.4
     <RequireAny>
       Require all granted      <-- add this line for Apache 2.4
       Require ip 127.0.0.1
       Require ip ::1
     </RequireAny>
   </IfModule>
   <IfModule !mod_authz_core.c>
     # Apache 2.2
     Order Deny,Allow
#     Deny from All            <-- or comment out this line for Apache 2.2
     Allow from 127.0.0.1
     Allow from ::1
   </IfModule>
</Directory>