Extend cached Logical Volume
You cannot do this directly for reasons that I have not tried to understand, but I suspect "it is hard" may have something to do with it.
The process is:
- Mark your cached LV as
uncached - Extended your LV
- Recreate your cache
Simple, except there are some gotchas. The process …
Send mail from Gitlab through Mandrill using Postfix
I am a fan of Gitlab. While Github is great, and I use it heavily, one should never be 100% reliant on the whims of a for-profit company. After all, their agenda is not the same as mine and could chang in the future. I also use it for projects …
Install Microsoft TrueType fonts on Fedora
Fedora do not bundle Microsoft's core Truetype fonts for licensing reasons. Normallly I do not care, personally I prefer Liberation fonts anyway. However, today I needed Verdana.
Traditionally, the way to install these on RPM based distributions has been:
- Grab the RPM spec file
- Build an RPM from the spec …
VMware CLI on Ubuntu Saucy Salamander
The current project (as of this week) has me moving away from Openstack for a while. For the next couple of months I will be immersing myself in monitor, metrics and logging. Naturally, this being a shiney new environment, this involves a significant amount of VMware time.
I have inherited …
Integrating RHEL with Active Directory
I had a request on Reddit to share a document I wrote about connect Red Hat Enterprise Linux with Active Directory. The original document I wrote is confidential, but I said I would write it up.
This works for both Server 2008(R2) and 2012. If I recall correctly it …
Bamboo Invoice on Centos with Nginx
BambooInvoice is free Open Source invoicing software intended for small businesses and independent contractors. It is easy to use and creates pretty good looking invoices.
It is a simple PHP application that is based on the CodeIgniter framework. This means it is really simple to install on a typically LAMP …
Writeable TFTP Server On CentOS
Well this caught me out for an embarassingly long time. There are loads of examples of setting up a TFTP server on the web. The vast majority of them assume that you are using them read-only for PXE booting.
I needed to make it writeable so that it could be …
In praise of old school UNIX
What am I doing today? Documentation that is what. I am writing a document on how to do this. To any Linux user it is a very simple process and I could just give them a link to my own website.
I am not writing this for a technical audience …
SFTP Chroot on CentOS
This came up today where I needed to give secure file transfer to customers. To complicate things I had to use an out-of-the-box RHEL6 system. The obvious answer was to use SSH and limit those users to SFTP only. Locking them into a chroot was not a requirement, but it …
Add SAN functions to Highly Available NFS/NAS
This based on my last post where I documented building a Highly Available NFS/NAS server.
There is not a huge amount that needs to be done in order to add iSCSI functionality as well.
Add a file called /etc/drbd/iscsi.res containing:
resource iscsi {
on nfs1 {
device /dev …