If you are running Vmware Virtual Center 2.5 and see the following error logs:

HA agent on HOSTNAME in cluster CLUSTERNAME in DOMAIN has an error : cmd addnode failed for primary node: unable to import /var/log/vmware/aam/aam_config_util.def

It means that you need to run “Reconfigure for HA” on every HA cluster starting with the other Hosts before you do it with a host with red-flag.

Many folks suggest removing the host from the HA cluster and then reconnecting, but I have done it many times by using Vmotion some machines to other hosts that are not so overloaded and then… Read the rest of this entry »

We are using HP G5 rackmount servers with Vsphere 4. This morning I came up with a idea that we need HP CIM providers installed for ESXI 4.0 in order to see more sensor values including RAID controller etc.

I got Suse SLES installed (10 SP 2 works :)) and installed the command line tools. Unfortunately, running vihostupdate reported the following error:

Error: Server version unavailable at ‘https://10.10.10.10/sdk/vimService.wsdl’

Before installing command line tools, I didn’t pay much attention if I have all the required libs installed. So I started to figure out… Read the rest of this entry »

The amount of web traffic that plays a role in dynamic Internet content is large, and it has become much larger as users demand higher levels of personalization. It has become more important for content providers to provide information that is tailored to the specific needs of the customer. The biggest challenge with achieving this is the cost. With current technology, generating dynamic content can be quite expensive. It does not help that basic web schemes are not very useful for generating pages that are dynamic. There are two techniques that show a lot of progress in the field of… Read the rest of this entry »

It’s always better to use SSH not Telnet if you are connected from a remote location and someone may snoop your password.

You must enable SSH on the Cisco gear by using:

crypto key generate rsa

Tune timeout and re-tries:

ip ssh timeout 120

ip ssh authentication-retries 3

Look up if you have SSH enabled on your Cisco router:

show ip ssh

See the SSH status:

show ssh