In the instruction for installation it is stated
Make the following files and directories (and their contents)
writeable (i.e., by changing the owner or permissions with chown or
* config.inc.php (optional -- if not writable you will be prompted to manually overwrite this file during installation) * public * cache * cache/t_cache * cache/t_config * cache/t_compile * cache/_db
Is it possible to give this instruction in The Octal 0755 or 0775 or 0777? Which one should it be?
Am I suppose to make them unsuitable after installation again?