Putty tunnels

In a previous post, I was talking about getting a headless instance of Crashplan setup on an Ubuntu server and then administrating it from a local machine (in that case, Ubuntu). However, I needed to do a similar thing with a windows machine.

Get putty: the best (maybe only) SSH client worth having on Windows.

On the support page at Crashplan, there is some discussion about how to use putty to create the remote connection via a tunnel, but either I'm daft, or it's not quite explicit enough. So, here's a little reminder about creating tunnels using putty.

Make sure that the Crashplan desktop client is not open (the tray icon can continue to run in the background).

Change the config

• edit C:\Program Files\CrashPlan\conf\uk.properties
• uncomment the servicePort line and make sure it reads servicePort=4200
• save the file

NB. Have just found Notepad++ which is a great little replacement for notepad.

Create the tunnel

• open putty
• in the first screen, enter the server details (as you would if just SSHing normally)
• now in the left hand column, under "Connection" and then "SSH" is a tab helpfully titled "Tunnels"
• in the source port box, type 4200
• in the destination box, type localhost:4243
• click Add (don't forget to do this bit!)
• finally, click Open
• log in with your normal user credentials

Check that the port is open

• Start -> Run
• cmd
• telnet localhost 4200 (should not get a message that talks about failed connection)

Open Crashlpan - and you should get a remote connection over an SSH tunnel.

Once you're finished, change back the config file and close the putty session which will close the tunnel.

Missing desktop notification link

When you visit mail.google.com, you should get a helpful hint at the top of the page that relates to the new desktop notifications (which are very cool).

"Click here to enable desktop notifications in Google".

However, while there are links to "Learn more" and "Hide", there is no actual link to setup notification. There *should be* a link to the settings page where you can actually set up notifications.

in reference to: Desktop notifications in Chrome - Gmail Help (view on Google Sidewiki)

Crashplan headless

I've previously mentioned my desire to get headless backups working with Crashplan. However, it wasn't quite right. So, I spent some more time this morning trying to get it working simply and well.

Before I start, here are the references to the work completed:

• Installing Crashplan remotely
• Using a headless server
• Helpful remote access script for Crashplan

Setup the remote server

Install the Java virtual machine - don't use openJRE

sudo apt-get install sun-java6-jre

Accept the licence

Goto the crashplan download site and find out the URL of the latest version

Get the crashplan archive, extract it and change directory

wget http://download.crashplan.com/installs/linux/install/CrashPlan/CrashPlan_3.0.2_Linux.tgz

tar -zxvf CrashPlan_3.0.2_Linux.tgz

cd CrashPlan-install

Install Crashplan as root (if you want access to all directories)

sudo -s

./install.sh

Complete the install process

• Read the EULA
• Hit q to exit the EULA and then agree to it
• Accept the default locations for the binaries, backups and scripts

Finish off the remote install process

• Remove the downloaded files
• Firewall: open up port 4243 on the remote machine

Setup the local machine

To administrate the remote machine, we will be port forwarding via ssh 4200 to 4243 and then using the desktop GUI.

Copy and paste the following script into crashplan/bin/CrashPlanRemote (which is usually in /usr/local/ on Ubuntu).

#!/bin/bash

# Do we have the appropriate input?

if [ -z "$1" ]; then

echo usage: $0 remote-server

exit

fi

# fill in your stuff here:

USER=jeremy

SERVER=$1

# dont change anything down here

ssh -fnNTL 4200:localhost:4243 ${USER}@${SERVER}

PID=$!

# get CrashPlan folder

SCRIPT=$(ls -l $0 | awk '{ print $NF }')

SCRIPTDIR=$(dirname $SCRIPT)

TARGETDIR="$SCRIPTDIR/.."

cd ${TARGETDIR}

#change CrashPlan config to use the tunnel

sed 's/#servicePort=4200/servicePort=4200/g' ${TARGETDIR}/conf/ui.properties > /tmp/CrashPlan-ui.properties

cp /tmp/CrashPlan-ui.properties ${TARGETDIR}/conf/ui.properties

rm /tmp/CrashPlan-ui.properties

#CrashPlan start script - begin

. ${TARGETDIR}/install.vars

. ${TARGETDIR}/bin/run.conf

${JAVACOMMON} ${GUI_JAVA_OPTS} -classpath "./lib/com.backup42.desktop.jar:./lang:./skin" com.backup42.desktop.CPDesktop > ${TARGETDIR}/log/ui_output.log 2 > ${TARGETDIR}/log/ui_error.log

#CrashPlan start script - end

#change CrashPlan config back to default

sed 's/servicePort=4200/#servicePort=4200/g' ${TARGETDIR}/conf/ui.properties > /tmp/CrashPlan-ui.properties

cp /tmp/CrashPlan-ui.properties ${TARGETDIR}/conf/ui.properties

rm /tmp/CrashPlan-ui.properties

#kill (every 4200) tunnel

CMD="ps -eo pid,args | grep 'ssh -fnNTL 4200:localhost:4243' | grep -v 'grep' | cut -c1-6"

PID=`eval $CMD`

kill -9 $PID

Now create a link from somewhere in your path, so that you can run it with the command CrashPlanRemote

chmod +x /usr/local/crashplan/bin/CrashPlanRemote

sudo ln -s /usr/local/crashplan/bin/CrashPlanRemote /usr/local/bin/CrashPlanRemote

And that should be it!

• CrashPlanRemove server.name.here

NB. it's best to have setup passwordless login to the remote server

• /etc/hosts: add a line with the IP address and full.domain.name
• ssh-copy-id -i ~/.ssh/id_rsa.pub full.domain.name

Crashplan remote management

A really helpful how to for managing a remote version of Crashplan on a headless server.

http://innerfusion.tumblr.com/post/616874889/setup-crashplan-to-manage-remote-clients-in-7-steps

Ripping DVDs and Ubuntu

I've been mucking around now for a while trying to work out the best way to rip and encode DVDs.

I tried using Handbrake for a while to rip and encode, but what I really want is something that just does it in the background. On the mac, RipIt is a great tool for ripping the DVD to the HDD allowing you to go back at your leisure and encode it.

What i really want is a solution that will autorip on DVD tray-close (like RipIt on the mac) and then a cron that will encode. This is a post about how I get on.

First, we'll need to add restricted formats:

• sudo apt-get install libdvdread4
• sudo /usr/share/doc/libdvdread4/install-css.sh

Now, install dvdbackup

• sudo apt-get install dvdbackup

Create a directory to put the ripped DVDs into and enter it and execute the command to rip the DVD:

• mkdir Ripped
• cd Ripped
• dvdbackup -M

You can also use the -F option rather than -M to just get the main feature, but I had bother with using handbrakeCLI to encode after doing that. Also use the -v flag to give a bit more output.

And, to eject, just use the command

• eject

So, now we need to work out how to do that automatically when a DVD is inserted into the machine. In the perfect world, we'd do that using the terminal only so that it could run flawlessly on a headless server.

Handbrake

We need to install handbrake from a PPA.

• sudo add-apt-repository ppa:handbrake-ubuntu/ppa
• sudo apt-get update && sudo apt-get install handbrake-cli

Then, it's a simple hop skip and a jump to a simple CLI command to encode the ripped disc using a preset for "Film"

• HandBrakeCLI -i 21/ --main-feature -o 21.mp4 --preset="Film"

Amazingly, this encoded the film at, on average, 280fps (granted, I'm running a quad core AMD monster), but still! I'd tried this on the Mac, using the GUI version and was getting an encode with an average fps of about 9!

• 
  

Drweb and plesk

I have been getting some really irritating emails for a couple of weeks from Plesk... actually, it's been a bit longer than that, but I just filtered them out via a gmail auto-delete - probably not the best way to deal with the situation!

What's strange it that I didn't even have dr-web installed. A couple of searches on google revealed a helpful page on serverfault.com which suggested that diabling the update call in the drweb-update cron would be helpful.

So:

• sudo touch var/log/drwebupdate.log
• sudo joe /etc/cron.d/drweb-update
• add ">> /var/log/drwebupdate.log" to the line that has update.pl
• save the file...

tbackup and Plesk

I just installed tbackup from 4psa for Plesk. It installed fine and the licence was installed without a problem. However, every time I tried to set it up, it said that the directory that the backups were to be saved to didn't exist.

Problem was that the debs are for 32-bit systems and the system is 64-bit. A helpful tech from 4psa kindly informed me that the ia32-libs package needed installing.

sudo apt-get install ia32-libs

And everything works fine.