During an event where a shutdown of the Hitachi Metrocluster is neccessary (ie. migration of storage cluster, power outage event where backup power is not available) a graceful shutdown of the Cluster is necessary in order to avoid a Raid…
Ever had a Cisco IP phone stuck in configuring ip? Suspecting that there is something wrong with the phone? Don’t throw it away yet! Try doing a factory reset on your phone! Unplug the power cable from the phone, and…
Problem: Have you ever had the need to VPN home from your iOS compatible device such as an iPhone or iPad? By using SSH tunneling, there’s no need to setup a complex IPSEC VPN or PPTP server at home. Just…
I’m sure the new ASA NAT statements has confused a load of people. I myself is one of them. Today I encountered a problem with setting up a site to site VPN tunnel between two ASA using the 8.4 code….
There are a few reasons why you want to install a multiple domain certificate (UCC certs with multiple SANs) into your ASA. One of the reason is for setting up a VPN cluster, in which case each of your ASA…
Ever had a Cisco PoE phone or a wifi access point reboot spontaneously? How would you know if there was bad cabling work done? Or more precisely, where was bad patch? How can you troubleshoot cabling problems using a Cisco…
Here’s the command to issue on the active unit to force the configurations an a Cisco ASA active/standby cluster to synchronize. write standby
HSRP is commonly used as a router failover mechanism, where one router in the group is active and all other group members are in standby. A standby router will take over as the active router when connectivity to the active…
Ever since Vmware launched ESXi 5.0. It has been difficult to locate their free version of ESXi 4.x license key. Here’s a link I found on forum somewhere. Get it while the link is still active. Visit the site https://www.vmware.com/tryvmware/p/activate.php?p=free-esxi&lp=1…
Etherchannel, Portchannel, bonding or NIC teaming? Etherchannel, portchannel, bonding, link-aggregation and NIC teaming are all terms to describe the bundling of two or more ports to form one logical Ethernet link. Ether-channel/Port-channel is the term used by Cisco convention and…