I have not used phing before, but would like to use it to automate my deployment process. Currently I log in under myuser, Apache runs under www-data. All my application code is owned by myuser, but other (cache) files are generated by www-data.
I currently solve this by using sudo to remove these files. I would like to keep the application code owned by myuser, because it's easier to access the files via ssh. I wouldn't like phing to run with super powers, because at this moment I don't trust this automated tool yet.
What is the best practice to use phing with limited file permissions?
I had the same issue. Apache is running as www-data.www.data and files created by the webserver are 644 and directories 755.
I solved it by:
adding the user running phing to the www-data group
adding umask 002 to the /etc/apache2/envvar file, see link
Phing is now able to remove the directories and files created by the apache
As I understand it the problem is that phing can't do anything with the cache files since they were created by your Apache user (www-data) and you are running phing as myuser. It sounds to me like you just need to change the permissions on the cache files so that myuser has full permissions. How to do this will depend on how your application is written, but something along the lines of chmod/chowning'ing the files after creation or creating them with a umask allowing myuser permissions.
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 have implemented a restful API where i receive a website and return path to screenshots
I am using PhantomJS v 2.0.0 development to make the screenshots. I am making a console command that is executed with a secured, system()-like function. I use SU to log as a user 'phantomjs', which is restricted to use only specified commands, and then call my phantomjs script to render webpages as jpegs. The files outputted are owned by 'phantomjs' and have permissions set to 644. We have added the user 'phantomjs' to group www-data.
We are putting lots of webshots in a directory, and separate them alphabetically in sub-directories.So far so good. Our work scenario requires that we occasionally delete webshots.
So i implemented a restful delete-api which clients can use to delete their webshots. The real problem emerges from the fact that the files are owned by 'phantomjs' and with permissions set to 644, we can't delete the files through www-data. Since 'phantomjs' is in the same group with www-data, we need the permissions to be set to 664 in order to be able to unlink() those.
We wouldn't like to allow the user 'phantomjs' to use chmod or rm, because this would go against our design idea to restrict the user maximally, since this user runs shell commands.
We don't like the solution to run a cronjob that changes file permissions, because the server is pretty busy, and this solution is very undesirable and should be our last resort/
We tried using ACL making every file in webshots/ dir to have default permissions of 664, but this didn't work with our NFS as expected. Upgrading the NFS is not an option for me right now.
We tried umask 002, but this worked only with files created through the shell, so it couldn't help us either.
I've noticed that if i save an empty file through sublime-text , file permissions are 664.
If i save a screenshot with phantomjs, f.p. are 644.
My questions are:
-What governs default file permissions, the running process itself or some user preferences from which you run the application?
-Can you give me any more ideas how to delete webshots securely or make 'phantomjs' owned files have perms 664 without giving the user too much 'dangerous' permissions.
Any help would be highly appreciated.
Thank you.
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
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.