How to deny access to folder?

[Staff]

in the installation docs it says

"Access through your webserver to at least the following directories should be denied:

/config
/temp
/logs

"

to translate into english this means that I should set file permissions in my ftp program for these folders or? If so what number?

[toetag]

you don't want people to access those folders through URLs

http://www.domain.com/roundcube/config
http://www.domain.com/roundcube/temp
http://www.domain.com/roundcube/logs

[qnrq]

Read the documentation of your webserver, if you're using Apache then .htaccess is you friend.

[CrCr]

in the installation docs it says

"Access through your webserver to at least the following directories should be denied:

/config
/temp
/logs
"

to translate into english this means that I should set file permissions in my ftp program for these folders or? If so what number?

So I also have the same question - just trying to understand what exactly this means in terms of which permission to assign to these directories & to the files within.  Looking for something like  directory 755 and file 700 or whatever.  Also I would love to hear more about the .htaccess as my friend - how should I modify that?

Thank you.  I'm not an expert and tried to find this answer in the documentation.  Any help /direction is appreciated.