November 2011

Install Dropbox On Your Server.

Start Dropbox Automatically On Boot

Dropbox provides a handy little service management script that makes it easy to start, stop and check the status of the Dropbox client.

Create a new file for the service management script

sudo vi /etc/init.d/dropbox


Paste the following script into the new file

# dropbox service
# Replace with linux users you want to run Dropbox clients for
DROPBOX_USERS="user1 user2"


start() {
    echo "Starting dropbox..."
    for dbuser in $DROPBOX_USERS; do
        HOMEDIR=`getent passwd $dbuser | cut -d: -f6`
        if [ -x $HOMEDIR/$DAEMON ]; then
            HOME="$HOMEDIR" start-stop-daemon -b -o -c $dbuser -S -u $dbuser -x $HOMEDIR/$DAEMON

stop() {
    echo "Stopping dropbox..."
    for dbuser in $DROPBOX_USERS; do
        HOMEDIR=`getent passwd $dbuser | cut -d: -f6`
        if [ -x $HOMEDIR/$DAEMON ]; then
            start-stop-daemon -o -c $dbuser -K -u $dbuser -x $HOMEDIR/$DAEMON

status() {
    for dbuser in $DROPBOX_USERS; do
        dbpid=`pgrep -u $dbuser dropbox`
        if [ -z $dbpid ] ; then
            echo "dropboxd for USER $dbuser: not running."
            echo "dropboxd for USER $dbuser: running (pid $dbpid)"

case "$1" in





        echo "Usage: /etc/init.d/dropbox {start|stop|reload|force-reload|restart|status}"
        exit 1


exit 0


Make sure you replace the value of DROPBOX_USERS with a comma separated list of the linux users on your machine you want to run the Dropbox client to run for. Each user in the list should have a copy of the Dropbox files and folders that you extracted from the archive, available under their home directory.

Make sure the script is executable and add it to default system startup run levels

sudo chmod +x /etc/init.d/dropbox
sudo update-rc.d dropbox defaults


Control the Dropbox client like any other Ubuntu service

sudo service dropbox start|stop|reload|force-reload|restart|status



Dropbox Delorean By Dropbox Artwork Team

Dropbox Delorean By Dropbox Artwork Team

Depending upon the number of files you have on Dropbox and the speed of your internet connection it may take some time for the Dropbox client to synchronize everything.

Check Status with Dropbox CLI

Dropbox has a command line python script available separately to provide more functionality and details on the status of the Dropbox client.

Download the script and adjust the file permissions

wget -O ~/.dropbox/ ""
chmod 755 ~/.dropbox/


You can download the script anywhere you like, I’ve included it along with the rest of the Dropbox files.

Now you can easily check the status of the Dropbox client

~/.dropbox/ status
Downloading 125 files (303.9 KB/sec, 1 hr left)


Get a full list of CLI commands

~/.dropbox/ help

Note: use dropbox help <command> to view usage for a specific command.

 status       get current status of the dropboxd
 help         provide help
 puburl       get public url of a file in your dropbox
 stop         stop dropboxd
 running      return whether dropbox is running
 start        start dropboxd
 filestatus   get current sync status of one or more files
 ls           list directory contents with current sync status
 autostart    automatically start dropbox at login
 exclude      ignores/excludes a directory from syncing


Use the exclude command to keep specific files or folders from syncing to your server

~/.dropbox/ help exclude

dropbox exclude [list]
dropbox exclude add [DIRECTORY] [DIRECTORY] ...
dropbox exclude remove [DIRECTORY] [DIRECTORY] ...

"list" prints a list of directories currently excluded from syncing.  
"add" adds one or more directories to the exclusion list, then resynchronizes Dropbox. 
"remove" removes one or more directories from the exclusion list, then resynchronizes Dropbox.
With no arguments, executes "list". 
Any specified path must be within Dropbox.


Once the Dropbox service is running and fully syncrhonized you can access all your Dropbox files and easily share files on your server with all your other Dropbox connected gadgets!

For more resources and troubleshooting tips visit the Text Based Linux Install page on the Dropbox wiki and the Dropbox forums. Happy syncing!

via Install Dropbox On Your Ubuntu Server (10.04, 10.10 & 11.04) | Ubuntu Server GUI.

Install Dropbox On Your Server. Read More »

Access-Control-Allow-Origin XMLHttpRequest day. What fun.

XMLHttpRequest cannot load Origin is not allowed by Access-Control-Allow-Origin

Courtesy of Toby’s code for his BBC Stories visualisation for a demo we’re doing of our joint work at the DTC all hands conference, I had a day of cross-domain Ajax woe.

It was particularly annoying to run into this issue because I wasn’t even really trying to do cross-site AJAX, I just wanted to call some data from a SPARQL server running on a high port of my own server! But no, a different port, as far as the browser is concerned, is a different server.

After spending hours trying to “do it properly” and get Cross Origin Resource Sharing to work on my ISPconfig 2 debian lenny server, I just gave up.

I got it in principle, and I discovered that by adding Apache Directives like this:

Header add Access-Control-Allow-Origin ""
Header add Access-Control-Allow-Origin ""
Header set Access-Control-Allow-Headers "X-Requested-With"
Header set Access-Control-Max-Age "60"
Header set Access-Control-Allow-Credentials true
Header set Access-Control-Allow-Headers "Content-Type, *"

To ISPConfig’s site control panel (instead of directly to Apache VirtualHosts), I did manage to get my headers doing the right thing:

saul@ni ~ $ curl -i -X OPTIONS

HTTP/1.1 200 OK
Date: Tue, 01 Nov 2011 14:38:56 GMT
Server: Apache (Debian) modpython Python modruby Ruby mod_ssl OpenSSL
Vary: Accept-Encoding
Access-Control-Allow-Headers: Content-Type, *
Access-Control-Max-Age: 60
Access-Control-Allow-Credentials: true
Content-Length: 0
Content-Type: text/html

at least as described in the various how-tos I was reading.

But after plenty of attempts, I just couldn’t get it working. Maybe it was something on the client-side that I just didn’t get. I’m no Javascript person…

Anyway, after battling hard to do it the right way, I caved and did it the sysadminny way, following the advice from Steve Harris I found on the 4store-support site in the first place and just set up a proxy to port 8080 so that the script could just request /whatever/ and get


Access-Control-Allow-Origin XMLHttpRequest day. What fun. Read More »