Plesk – PHP read and write to ‘root’ directory – permission

Question

Current dedicated server Plesk (10.3) server setup as follow:

I have MainDomain setup to work in httpdocs (like public html) folder. Then I have two domains that are setup inside this folder, see structure below.

All sites works fine, but the problem occurs, when domain1 or domain2 want to read/write to folder that is in httpdocs in this case Test.

--- MainDomain
    -- Httpdocs
       -- Some files
       --  Test
       -- Domain1
        -- Some files
       -- Domain2
        -- Some files

Don’t know the exact issues, but I did set the owner and group permission to root, but did not work.

Answer 1

It's an open_basedir restriction which comes from apache config:

php_admin_value open_basedir "/var/www/vhosts/MainDomain/Domain1/:/tmp/"

So, if you want to access to /var/www/vhosts/MainDomain/httpdocs/ you have to add this path to open_basedir for Domain1 and Domain2 (I'm not sure but in 10.4 there is able to do it from Plesk GUI)

But actually, it's totally wrong because it's a real security threat.