Configuring layer two VM as inline IPS in VMware ESX

Wednesday, November 19th, 2008

To setup properly the portgroups in VMware vSwitching environment, we had to create two portgroups per vSwitch as depicted below: Reason for this configuration is that "operative portgroups" where servers and machines are connected should not be in Promiscuous mode to avoid sniffing other machines' traffic, while ...

OpenFiler 2.3 Troubleshooting.

Monday, October 27th, 2008

OpenFiler is a great system to implement NAS (Network Attached Storage) in a network using general purpose hardware. On the 'Net you can find great tutorial about how to setup with VMWare ESX servers, but it contains one important mistake: When you define the ACL the netmask for every host is /32 ...

Installing VMWare Server 1.0.5 tools on CentOS 5.1 guest

Tuesday, April 22nd, 2008

Running vmware-config-tools.pl script on a guest CentOS 5.1 virtual machine in a VMWare Server 1.0.5 environment will not find the proper kernel modules, so it will prompt you to compile the modules. To do this you need a compiling environment (namely gcc) and the C kernel headers installed. If your machine is ...

Expand a VMWare Virtual Disk Size

Friday, December 28th, 2007

Regardless of VMWare Version you're using, you should have the command line tool vmware-vdiskmanager This useful command line tool can be used for many operations (vmware-vdiskmanager --help) including expanding a Virtual Disk without losing data contained. The syntax for expanding is: vmware-vdiskmanager -x 36Gb virtual_disk_name.vmdk If you have partitions within the disk, remember that the ...