Linux permissions: Difference between revisions
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sudo groupadd mygroup # create a group | sudo groupadd mygroup # create a group | ||
sudo usermod -a -G mygroup myuser # add yourself (and others) | sudo usermod -a -G mygroup myuser # add yourself (and others) | ||
mkdir myshare && chmod g+ws myshare # set up a folder for sharing - you want g+w and g+s | mkdir myshare && chmod g+ws myshare # set up a folder for sharing - you want g+w(rite) and g+s(ticky) | ||
If you need to share an existing folder, you need to do g+w and also retroactively update g+s on all the directories manually with this stupid hack (becuase -R doesn't work, stupid linux bullshit): | If you need to share an existing folder, you need to do g+w and also retroactively update g+s on all the directories manually with this stupid hack (becuase -R doesn't work, stupid linux bullshit): | ||
Revision as of 18:56, 23 June 2022
sudo groupadd mygroup # create a group sudo usermod -a -G mygroup myuser # add yourself (and others) mkdir myshare && chmod g+ws myshare # set up a folder for sharing - you want g+w(rite) and g+s(ticky)
If you need to share an existing folder, you need to do g+w and also retroactively update g+s on all the directories manually with this stupid hack (becuase -R doesn't work, stupid linux bullshit):
chmod g+ws existingshare
find existingshare -type d -exec chmod g+ws {} \;
find existingshare -type f -exec chmod g+w {} \;
Restricting a user to a specific folder
I have found that for several folders on my server I do not have the w+x bit set for folders:
drwxrwxr-- 12 m m 4.0K Feb 3 2017 .
This was killing me, as I tried to set user-specific permissions on symlinks to subfolders deep within the top level folder. They would fail because the user could not cd to the folder due to the missing +x. You have to make sure the WHOLE F'IN FOLDER CHAIN HAS g+x ON IT in order for a specific user to be able to cd to it.