Webmin is a fantastic tool for administering many aspects of your server such as users, groups, cron job etc. The greatest part of webmin is that it abstracts much tedious command-line work from Linux server administration.
The first step is to find out what the latest version of webmin is numbered. You can do that by pointing your browser at: http://sourceforge.net/projects/webadmin/files/webmin/
At the time of writing the most recent version of webmin is 1.620 – if there is a more recent version available the adjust the following commands.
Install the prerequisites/dependencies:
apt-get install perl libnet-ssleay-perl openssl libauthen-pam-perl libpam-runtime libio-pty-perl apt-show-versions python
Get the install file:
Install the package:
dpkg -i webmin_1.620_all.deb
That’s it! You can not login to webmin on https://YOUR-SERVER-NAME-OR-IP:10000
I’m sure you’ve already visited many, many sites which explain how to install GearmanD on Ubuntu – but you’ve continued searching because something broke or didn’t quite work out. I too was in the same situation and spent 3 days battling through bits and pieces of information scattered across the web.
Here is the process I went through to install Gearman 1.1.7 on a Rackspace/OpenStack Ubuntu 12.04 instance which (assuming decent connection etc) should take less than 30 minutes!
Make a server instance
Obviously skip this part if you are working in Rackspace cloud or have already provisioned an Ubuntu instance.
- Log into your control panel at https://lon.manage.rackspacecloud.com for UK Rackspace customers or https://manage.rackspacecloud.com for US customers
- Click “Hosting”
- Click “Cloud Servers”
- Scroll down and click “Select” next to Ubuntu 12.04 LTS (Precise Pangolin)
- Give your server a name
- Select your server size – the size you choose will be dependent on the workload/throughput you expect your server to do, if you need lots of things done quickly with no regard to expense choose a larger server, however if you just want this gearmand server to plod through jobs then a smaller server will probably do.
- Click “Launch”
- Make a note of the password which is shown during set up – you will need it to log in to the server.
All you need to do is:
apt-get install gearmand-server
Install Ubuntu Update & Gearman Prerequisites/Dependancies
- Log into your server using your SSH client (I use puTTY)
- If you’ve just created the instance, change your password by entering:
- Update & Upgrade your Ubuntu to have the latest patches etc by running:
- Because my Ubuntu instance was a clean install I needed to install the LAMP stack – there will be dependencies in here which Gearman requires – such as MySQL – if you’re not installing the LAMP stack you will need to do some futher reading! I use tasksel to do my LAMP install (because I’m lazy)
- Install Gearman’s dependencies:
apt-get install build-essential libboost-thread-dev libboost-thread1.46-dev libcloog-ppl0 libboost-program-options-dev libevent-dev php5-dev libcloog-ppl0
- Figure out which version of Gearman you need by visiting https://launchpad.net/gearmand – in my case I’m using 1.1.7 so in the subsequent instructions change 1.1.7 to your version number
- Get the version of Gearman you require and unpack it:
tar -xvzf gearmand-1.1.7.tar.gz
- Make & Install GearmanD
make && make install
All being well you should now have Gearman install and nothing broke/exploded or otherwise shit its pants during the install process.
Installing the PECL Extension for Gearman
To use Gearman with PHP we need to install the PECL extension – to do that we:
- Figure out which version we need by visiting http://pecl.php.net/package/gearman – in my case I’m using 1.1.1 so in the subsequent instructions change 1.1.1 to your version number
- Download & unpack the appropriate file
tar -xvzf gearman-1.1.1.tgz
- Install the PECL extension:
Update PHP with Gearman Extension
You made it to the last step! Getting PHP to recognise Gearman…
- You need to update your php.ini file(s) with the Gearman extension. As I intend to use Gearman both from the command line and Apache I need to update both of my php.ini files. To locate them I used:
- Which told me I need to edit /etc/php5/apache2/php.ini and /etc/php5/cli/php.ini. I’m not a huge fan of vi so I use nano to edit instead:
nano -w /etc/php5/apache2/php.ini
nano -w /etc/php5/cli/php.ini
I added the following to each php.ini file:
You should now have a working Gearman server – hopefully it took you less than 30 minutes and can now go make a nice cup of tea!