Our server is running under CentOS 6 and handled over Panel Plesk 10.4.4. Structure of folders and files is created using php script. Then, when accessing through FTP we are unable to modify these folder contents previously created. When accessing it over Apache web user works without exception but not over ftp. Folders and files have 755 and 644 rights respectively. How to enable ftp acces? Thank you
EDIT: problem is that file owner and ftp are not the same but I do not know exactly how and where to attach it.
File and folders owner is psacln (gid 502) and group is apache (gid 503). Ftp users are not the same.
We add a login ftp user (also system one) to the group owner of files and folders "psacln" using usermod -a -G psacln ftpusername. Same procedure with apache group but problem persists.
The problem here would be that you probably run your site in mod_php mode. In this mode scripts are operated under Apache privileges, so all files and directories created are owned by Apache. This way the files cannot be accessed by your FTP user unless you set up 777 or 666 permissions.
I think your options could be
switch to FastCGI mode of PHP. Depending on your Plesk account privileges, you can either do it yourself in Plesk UI or will have to ask hosting provider for that.
This way your script will be operated under user privileges (same as FTP user) and there will be no problems with accessing these files through FTP. Also this option is often considered more secure.
make PHP script setting 777 permissions on your folders and 666 permissions on your files. It means you allow to modify them by everyone (so called "others"). So FTP user can modify these files as well. While this may sound insecure, but practically these files are already can be accessed from any other site on that system (if it is shared hosting server). So I don't think it will be any more insecure than the current status.
Regards
Related
I am setting up a multimedia server on Debian 8.
I installed both Plex and Owncloud. I have set up /var/media as my Owncloud default folder. I decided to create a folder Library at the root of Owncloud. So the folder path is:
/var/media/admin/files/Library
I changed the permissions of media with:
chmod 770 -R /var/media
On top of that, all the files in /var/media are owned by www-data:www-data.
In order to make Plex see my medias, I have added the user plex to the group www-data. I would like to create a library watching my /var/media/admin/files/Library folder but I have a problem, Plex doesn't see neither the files or folders in /var/media. Here is a screenshot:
To finish, I have tried to connect on my server via ssh with the plex user, and it sees files and folders inside /var/media.
What am I doing wrong? Maybe it is not a permission issue?
Thanks
Update
If I change the ownership of /var/media to plex:www-data, it works. But I can't understand why it doesn't work for www-data:www-data. So it is well a permissions issue.
If I launch id plex, I have:
uid=107(plex) gid=33(www-data) groups=33(www-data)
Just to remind, here are the permissions of /var/media folder (full permissions for group...):
drwxrwx--- 4 www-data www-data 4096 Oct 30 09:01 media
I assume from your post that Plex, Linux OS, and your media are all contained on the same machine and that there are no separate computing devices being used here as that would mean additional steps are required.
In all likelyhood, plex won't be able to list your files because the mode 777 is required to list files in a directory even if the files themselves are set more restrictively than 777 e.g. 750. From what I can tell, your chmod command has set all the directory permissions to 770 which would break the listing capability. As it happens I've just yesterday written a guide over on Tech-KnowHow that covers this, and within that I have described how to set all your folders to 777 and your files to something else. That way it works with plex (and other systems for that matter). I've essentially chosen the same solutions as you in that I use the group to assign the permissions and make sure the everyone / other mode is set to apply no permissions.
There's a direct link to the article below, you'll need to click on the implementation page and look for the find command under the 'Apply correct modes' heading. I've also included how to keep your ownership consistent through samba which is useful when copying new files across. Let me know how that goes in the comments and I'll help you out where I can while it's still fresh in my mind. Good luck!
https://www.tech-knowhow.com/2016/03/how-to-plex-permissions-linux/
I know it is an old post, but I had the same issue and this was my solution :
After a
sudo service plexmediaserver status
I found the file used to launch the plex service /lib/systemd/system/plexmediaserver.service. This file contains the user and group which are used by plex.
So we can change the line Group=plex by your group.
PS: do not forget to restart the plex service with
sudo service plexmediaserver restart
I've just installed Concrete 5 CMS by following the instructions on the website.
The folders application/files/, application/config/, packages/ and
updates/ will need to be writable by the web server process. This can
mean that the folders will need to be "world writable", depending on
your hosting environment. If your server supports running as
suexec/phpsuexec, the files should be owned by your user account, and
set as 755 on all of them. That means that your web server process can
do anything it likes to them, but nothing else can (although everyone
can view them, which is expected.) If this isn't possible, another
good option is to set the apache user (either "apache" or "nobody") as
having full rights to these file. If neither are possible, chmod 777
to files/ and all items within (e.g. chmod -R 777 file/*)
The packages folder has permission 777 and root/tmp folder has permission 755.
I've uploaded a new theme to /packages over FTP. When I try to install the new theme I see the following error:
An unexpected error occurred. fopen(/root/tmp/1419851019.zip) [function.fopen]: failed to open stream:
Permission denied
I have FTP access to the server and access to CPanel. How do I get this working without granting too many permissions which pose a security risk?
My install has the folders application/files, application/config, packages, and updates all set to 755 and it's working just fine.
You get that error because the system is trying to write to /root/tmp, which apparently is the environment configuration for a temp folder when your PHP request is handled.
Try adding the folder application/files/tmp in your file system (within your concrete5 installation). And then make sure that the user can write to that folder that is running PHP in your environment. As explained in the concrete5's own documentation (that you linked originally), it depends on your server which user this is.
Usually in shared hosting environments it's the same as the account you use to login there through SSH or FTP. In these cases, the 755 permissions should be enough if your own user owns the tmp folder you just created.
I need some suggestions about Joomla's files and folders ownership.
I'm working with a Joomla 2.5 website, hosted on a linux-apache server which hasn't suPHP module.
After one year of usage some files are owned by apache-user, and others by the ftp user.
I request to give the ownership of all files to the ftp user, but joomla (the apache user, after all) can't update system, install extensions or upload images.
How can i set the ownership of files?
Thank You
You will either need to talk to your hosting provider to change the file/folder ownership for you (which they should do), else if you are managing the server yourself , then you can do this using the following SSH command:
chgrp -R OWNER FOLDER
-R means recursive so it will also change the ownership for any sub directories and files
OWNER is the name of the server which you will need to add
FOLDER is simply the name of the folder you wish to apply this change to.
As for the command line tool, I like to use Putty
Hope this helps
the default install of apache in CentOS or RHEL, looking at file system permissions for html directory in /var/www/
drwxr-xr-x. 2 root root 4096 Aug 13 2013 html
My website works, and I have no issues with it, however I would like to know why and when do we need to set the directory to apache:apache?
Thank you
Since Apache is not running as root (presumably, hopefully), it only has read permissions on the directory as part of the last o=rx. This is a good default, since it means that it cannot alter the directory, only passively read and serve files from it. Everything running under an Apache process (e.g. mod_php) thereby has the same restrictions. That prevents a lot of common rookie exploits, like allowing uploads of .php files into a public web folder; because Apache/PHP cannot write into the web folder.
You should assign directories that Apache/PHP/CGI should explicitly be able to write into to apache/www-data (depending on your OS/configuration). It's not typically a good idea to do this with any directory under /var/www, you should leave that read-only as much as possible. However, adding an application-specific folder to something like /usr/local/var/<my website> with write permissions for Apache and selectively sym-linking or mod_rewriting to it is fine.
When your website need permission to modify direction/file on web app folder, you have 2 choices: 1) chmod folder to 777/666 or 2) change owner of these folders/files to apache
Sometimes, change owner is prefer to chmod because of security reason.
Ok. Im little bit confused about those permissions in linux so please people help me out. The trouble is that I dont want to run server as root, so I created another user with sudo privileges so he runs the nginx and php-fpm servers (example "sudo_user"). But the trouble is for example I have "some_user" and he has a directory of his web-site "some_user/www.some_user.com" with all the configuration files, including database passwords and so on. I set ownership of all files to some_user:some_user (user:group) and changed permissions to all files 751 (u=rwx,g=rx,o=x so other accounts cant just go in this dir and read every config file) and set to public files permission 755. But my php-fpm runs with "sudo_user" with a group "sudo_user" he don't have a permission to write or read config files in "some_user" directory. What strategy should I take?
Its probably better to create an nginx user and nginx group, and have nginx/php run under that user. Then you can add the user nginx to your some_user/sudo_user's groups with your 751 permissions and you should be set.