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Make user's home directories private #156

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merged 3 commits into from
Apr 2, 2024
Merged

Make user's home directories private #156

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a80f073
Ensure private home directories
aktech Apr 2, 2024
4e7a1e6
Add note about user permissions modification
aktech Apr 2, 2024
973e868
add faq for user's private home directory
aktech Apr 2, 2024
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23 changes: 23 additions & 0 deletions docs/faq.md
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Original file line number Diff line number Diff line change
@@ -1 +1,24 @@
# Frequently Asked Questions

Q1: Can a user access another user's home directory in JupyterLab?

No. Every user's home directory is private to themselves and they cannot access contents
of any other user's home directory. Example below shows the permissions of user directories
in `/home`.

```bash
$ ls -ltrh /home

total 36K
drwx------ 9 john-doe example-user 4.0K Apr 1 19:22 john-doe
drwx------ 9 alice-doe example-user 4.0K Apr 1 19:34 alice-doe
```

```bash
john-doe@worker-01:~$ pwd
/home/john-doe

# The user john-doe unable to access contents of user alice-doe's home directory:
john-doer@worker-01:~$ ls /home/alice-doe/
ls: cannot open directory '/home/alice-doe/': Permission denied
```
5 changes: 5 additions & 0 deletions roles/jupyterhub/templates/jupyterhub_config.py
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Expand Up @@ -170,6 +170,11 @@ class QHubHPCSpawner(QHubHPCSpawnerBase):
ln -s /shared "$HOME/share"
fi

echo "Ensure home directory $HOME is private"
# This will remove read, write, execute permissions from the group and other users.
# It will not change permissions for the user that owns the file.
chmod go-rwx $HOME

# ensure ipyparallel configuration profiles
cp -r /etc/jupyter/profile_default $HOME/.ipython/

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