SilverFile Server Administration Guide and Tips

Add users to sudo

Sudo allows all users in admin group root privilege. This is something that Ubuntu sets up as an alternative to ​visudo.

usermod -a -G admin ryan

SSH Keys

To generate a key:

ssh-keygen (or)
ssh-keygen -t dsa (for dsa)
(do not enter a passphrase)

This generates, id_dsa and id_dsa.pub. Client(id_dsa) ---ssh--> Host(id_dsa.pub in .ssh/authorized_keys)

Disk Usage Tools

Get a summary of disk usage for each client folder. Sort the output alphabetically.

du -h --max-depth=1 | sort -k 2

Using Screen

Screen is an excellent utility for managing shell sessions remotely.

screen

Within the new shell, enter Ctr-A d. This disengages you from that shell but still allows it to keep running.

screen -ls (lists screen sessions)
screen -r xxxx.tty.session (allows you to re-attach to a given session)

SSH Tunneling

If you want to tunnel the tomcat instance (running nutch) try this command:

ssh user@harvey.silverfilecorp.com -p 2222 -L 8080:localhost:8080

Init Scripts

Add an init script Add the script to /etc/init.d/ and then run:

update-rc.d script_name defaults

Remove an init script Delete the script from /etc/init.d/ and then run:

update-rc.d script_name remove