when I configured pnp4nagios,the following questions happened.
PHP GD extension→ PHP GD extension not available
PHP zlib extension→ PHP zlib extension not available
PHP socket extension→ PHP socket extension not available
Apache Rewrite Module→ Apache mod_rewrite is not enabled
google told me perhaps my php was broken during the installation. Also,I got this pageenabling-mod-rewrite-on-ubuntu
But,my server is CentOS,I carried out the command "a2enmod rewrite",the result is "-bash: a2enmod: command not found"……
What can I do?Thanks.