File Server

Basic Info

• Web interface at http://files/
• Can also be accessed via samba/SMB with the standard lvl1 credentials.
• ssh is also possible, but there is no safety check for accidentally deleting files this way.

Setting up on Ubuntu

• Prerequisites:

sudo apt-get install autofs smbfs

• create autofs config files
• /etc/auto.master

/mnt   /etc/auto.files    --timeout=6000    --ghost

• /etc/auto.files

z    -fstype=smbfs,credentials=/etc/auto.auth    ://files/shared

• /etc/auto.auth
  • (replace CENSORED with the lvl1 credentials)

username=CENSORED
password=CENSORED

• run the following:

sudo chmod 400 /etc/auto.auth
sudo service autofs restart

• the files share will be mounted in /mnt/z
• to make this easily accessible, run

ln -s /mnt/z ~/z

• Desktop file for adding to menu (place in /usr/share/applications/

[Desktop Entry]
Name=File Share
Comment=LVL1 central file server
Exec=nautilus /home/lvl1/z
Icon=system-file-manager
Terminal=false
Type=Application
StartupNotify=true
OnlyShowIn=GNOME;Unity;
Categories=GNOME;GTK;Utility;Core;
MimeType=inode/directory;application/x-gnome-saved-search;
X-GNOME-Bugzilla-Bugzilla=GNOME
X-GNOME-Bugzilla-Product=nautilus
X-GNOME-Bugzilla-Component=general
X-GNOME-Bugzilla-Version=3.4.2
Actions=Window;
X-Ubuntu-Gettext-Domain=nautilus

[Desktop Action Window]
Name=File Share
Exec=nautilus /home/lvl1/z
OnlyShowIn=Unity;

Server Setup

File Systems

• Root is on a single drive. Important files are symlinked to the raid array.
• Raid device is /dev/md0
  • Do not access this directly
  • Check status with

cat /proc/mdstat

• Cache device is /dev/bcache0
  • This adds SSD caching on top of the /dev/md0
  • Interact with /dev/bcache0 as if it were a disk.
  • Mounted on /mnt/bcache0