Category Archives: Networking

Install Intel Drivers on ESX 4.x

Install Intel Drivers on ESX 4.x This issue may occur if the drivers for the network controller are not installed. To resolve this issue, download the Driver CD for the network controller and install the drivers.   To install drivers for devices as part of a new ESX installation: Place the ESX installation DVD in the… Read More »

Configure QLOGIC boot from SAN

Configure QLOGIC Fiber channel cards to boot from SAN QLogic Fibre Channel Adapter Preparation Press CTRL+Q to access the BIOS setup utility (Fast!UTIL) during system boot-up. From the Fast!UTIL Options menu, enable the adapter BIOS by selecting Configuration Settings > Adapter Settings > Host Adapter BIOS. From the Configuration Settings menu, select Selectable Boot Settings… Read More »

Disable POODLE in IIS

Disable POODLE in IIS In Windows Server 2003 to 2012 R2 the SSL / TLS protocols are controlled by flags in the registry set at HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSecurityProvidersSchannelProtocols. To disable SSLv3, which the POODLE vulnerability is concerned with, create a subkey at the above location (if it’s not already present) named SSL 3.0 and, under that, a… Read More »

Port Mirroring on Cisco 3750

CISCO 3750 Port Mirroring This is a useful command to port mirror cisco 3750 Start Monitor conf t monitor session 1 source interface Gigabit 1/0/x monitor session 1 destination interface Gigabit 1/0/x End Monitor conf t no monitor session 1 Not to much to this post.

VMware Network Policies

VMware Network Polices VMware has a Network Policies that can be setup from the high level VSS to the single VMnic.  There are two main setting. Load Balancing and Network Failover dections. In this post I am going to go into what these options are and when you will use them. Load Balancing Here is… Read More »

SNMP trap reciever in vCenter

How to set a SNMP trap receivers in vCenter Server First, you must register the External SNMP server in the list of SNMP trap receivers in vCenter Server. This list is accessible in the vSphere client -> vCenter Server Settings -> Administration menu. Change localhost to the IP or DNS name of your server.  Change… Read More »

CISCO VPN Timeout Issue

How to disable the VPN timeout setting on CISCO devices Stop site-to-site CISCO VPN Drops By default, CISCO site-to-site VPNs timeout after 30 minutes of idle time.  Have you ever had to had to work on a client issue at their site and then try the remote desktop connection, and presto no VPN connection.  The status… Read More »

VLAN Trunk Between Cisco and HP Procurve switch

VLAN Trunk Between Cisco and HP Procurve switch In this example we are going to see how we can use Cisco and HP switches together for Vlan trunking. Before we get into details, let me describe the difference in ‘terms‘ using both in Cisco and HP. Description                      … Read More »