Tech Blog » VM

Scaling down from MS to open source

frank — Fri, 04 Mar 2011 00:37:31 +0000

We just moved a service that was running on the Microsoft stack (Windows Server 2008, .NET, MSSql Server, IIS) to an open source stack (Ubuntu Server, php, Codeigniter framework, apache2, postgres).

We now run the service on a cloud server with dual cpu and 256MB ram (Yes, that's megabytes).

The old server ran on dual core with 2GB of ram.

VMware Server must be reconfigured when there is a kernel upgrade

frank — Tue, 18 Aug 2009 16:42:09 +0000

If the linux kernel is upgraded, vmware will not load http://localhost:8222. It requires a reconfigure when this happens. Do the following.

sudo /usr/bin/vmware-config.pl

VMware bridged network Ubuntu and Windows

frank — Wed, 29 Apr 2009 22:28:35 +0000

Setting up a Windows guest to serve to the LAN that the host Ubuntu is on is simple but a few gotchas to look out for.

My Setup:
1. Host VM Ubuntu withd 2 NICs
2. Guest VM XP Pro serving http through IIS
3. Lan with DHCP exist at Host VM level
4. Host VM uses eth0
5. VMware Server

Getting it to work:

For the Network Adapter config for the guest VM select the Bridged Network created during install of VMware server (eth1 in my case since eth0 is assigned to host VM)
On host VM Ubuntu, goto System>Preferences>Network Connections
Edit eth1
Uncheck Available to all users
Goto IPv4 Settings tab
Change method to Link-Local Only
Apply and close
Refresh NICs
Make sure ifconfig does not show an IP address from the subnet of your LAN on eth1
Since guest VM XP is to serve http, it should have a static IP
Goto guest VM
Set TCP/IP for the Local Area Connection to a static IP within the subnet of the LAN
Run ipconfig /refresh in command line
Make sure ipconfig shows the correct IP info just set
Make sure it can connect to internet
Make sure Windows Firewall is not blocking http or port 80 (obvious step but it threw me for a loop for a little while)
Now just check from host VM to see if a test webpage shows up