My intention was to document how I used the Proxmox VE 2.2 hypervisor web interface to do backups, restore and schedule backups for my Linux and Windows KVM virtual machines at the work place. Not having a huge IT budget common with larger operations we had to come up with a cost-effective solution to store [...]
libpam-shield another tool I used to stop brute force attempts directed‚ at Dovecot. This is how I went about using it on my Debian box.
I manage numerous web sites at work but since we only have very few public IP addresses given to us I decided to use Name based virtual hosting. This is how I did it with the help of Virtualmin GPL.
I had problems trying to make suPHP work on my Debian Lenny server. I have tried re-tried different ways to make it work but all failed. Searching for alternatives on the web I came across this article on how to run vhosts using UID/GID of the web site owner. If a package is available on Ubuntu there is a very good chance it is also available on the Debian software repositories.
Makes it easy to schedule backups in a number of ways. Even though Virtualmin is capable of sending backup data remotely using either FTP or SCP, I have decided instead to use the amazing free Veeam FastSCP to copy backup data to an external drive connected via firewire. Having it done this way helps cut down bandwith usage. Veeam was primarily designed to copy VMware ESX server bulk files in an extremely fast way.
I was searching for a backup solution for my guest virtual machines on my VMware ESXi host. The solution had to be a free solution at the moment since we had a temporary spending freeze on our IT budget. I was fortunate though to have come accross this article covering cool free tools to use for Virtualization. One of the products the author talked about was a free backup solution for ESX server created by Trilead.com called VM Explorer. The free version allows backing up virtual machines on an ESXi host, whereas the paid version allows scheduling backups.
From my experience it is best to start off with a fresh Debian Lenny, install so as not to cause any conflicts with any software installed by Virtualmin’s GPL install script. These are the steps I took to complete the installation.
Another piece of the puzzle for my Virtualization project has fit into place. I was able to virtualize my IPCop firewall boxes using a free download of VMware ESXi 3.5 Update 4 server. ESXi is a type 1 hypervisor, which directly communicates with server hardware. This was the primary reason why I decided to use ESXi instead of VMware server.
With the growing number of servers, workstations, firewalls, routers, switches, Virtual hosts and VOIP systems to manage at work, I needed a tool which could alert me at the first sign of trouble. Using Nagios to monitor my LAN, I am now able to proactively deal with problems before it becomes critical. If that does not impress the boss maybe the price will when you tell him or her you paid nothing for an Enterprise grade network monitoring tool!
During an economic down turn, why spend thousands of dollars buying commercial mailserver software or even pay monthly/annual fees for e-mail service? When you could use Open Source software to run your own free mail server. If you already have unused server hardware capable of running Linux or Vmware ESXi, you’re a step closer to enjoying significant costs savings! I have successfully ran our e-mail infrastructure for the last nine years using open source software, maybe you could do the same. On the other hand if you’re used to having paid tech support to call whenever you encounter problems I’d stick with commercial solutions.