I have decided to give Ubuntu 17.04 LTS Desktop a go. On a whim I installed it on a laptop I had lying about (being an IT person they tend to proliferate over a given period of time in my office… older units becoming doorstops, newer units lovely “Jenga” blocks and maybe the occasional Proxmox […]

I have written articles on how to start using RealmD and SSSD for integrating ubuntu into a windows network. However, prior to that I wrote an article on using PBIS. RealmD and SSSD is, by far, the superior method IMHO and experience, so for all of those folks that want to switch, you probably want […]

For this tutorial I will be walking through how to use a tool called Realmd to connect an Ubuntu Server or Ubuntu Desktop system to a Windows Active Directory Domain. In the past I wrote an article talking about how to use Powerbroker Identity Services to do the same thing, but the scope of the […]

One of the things I like having is a remote system I can access and work on from anywhere. In the past this has meant using either a dedicated server (expensive) or VPS (which is just a VM… too slow). With Proxmox, I figured I had the option of using a container, which would mean […]

If you load Proxmox 4.0 from OVH or any of their affiliates you end up with a partition scheme that gives you one big logical volume for data that is formatted to EXT3. That will work but it isn’t desirable. Starting with Proxmox 3.4, support for the ZFS filesystem was added. ZFS is more than […]

So I wanted to start playing around with Docker and LXC containers and all kinds of other fun stuff on one of my cheap Kimsufi dedicated servers. I immediately ran into a problem though, Kimsufi (and parent company OVH, and probably sister company SoYouStart) use a modified Ubuntu Kernel. Why do they do this? In […]

I heartily recommend Exim4. I find it to be BY FAR the easiest/best email server for “send only” operations. It is a full MTA so you don’t need to rely on outside relays (gmail is commonly used with things like phpsendmail). Being a full MTA means that it can do a lot more but I […]

Explain how to undo or rollback an apt-get install command on a Debian or Ubuntu or Mint Linux. Source: Rollback an apt-get upgrade if something goes wrong on Debian / Ubuntu Linux All I have to say is, AWESOME! I am filing this one away as potentially a life saver if I ever fail to […]

I wrote a new script today to keep me up-to-date on how full the boot partition is on my Ubuntu servers. I actually administer quite a few of them and it can become a real issue if the boot drive hits 100% full, which it commonly does. The reason for this is that the boot […]

If you are looking for a quick way to install a LAMP (Linux, Apache, MySQL, PHP) stack on an Ubuntu server, this should take care of you: sudo apt-get install tasksel sudo tasksel install lamp-server mysql_secure_installation First command installs tasksel… which is a really handy program.

Do you work with MySQL? I do… quite a bit. Do you often script stuff on your server to make your life easier? I do that as well… quite a bit… Are you including your database user account and password (or worse… your mysql instance root user account and password!) in plain-text in your script… […]

I have setup a few servers with Ubuntu Server and one of the common security tools I use is Fail2Ban. One of the common requirements that comes with Fail2Ban is the need to provide other administrative personnel with a place they can quickly check which IP’s have been banned. Using a cool program called incron […]

If you don’t know what a firewall is, let’s start there… A firewall is basically a digital “wall” that sits on the edge of your network or device. When someone makes a connection over a network or the internet to your server, they connect by the IP address + a Port. Firewalls, on a very […]

Another very quick post for all you aspiring Ubuntu server admins out there. I am not sure how I got along as far as I did without knowing how to easily add a service to the boot time start list or remove it from said list. I already knew how to manually start or stop […]