Advanced Port Scanner v1.3
A small useful port scanner:
http://www.radmin.com/products/utilities/portscanner.php

Uncover Hidden Hardware in Device Manager
When upgrading from VMWare ESX 3.5 -> 4.1, VM hardware versions changed from 4 to 7 which ended up orphaning Version 4 NICs. To get rid of these hiding NICs, run the following from a command prompt:
set devmgr_show_nonpresent_devices=1
devmgmt.msc

Refer to http://oreilly.com/pub/h/3105 for more info.

How to set the time service for your W2K3 Server Domain Controller

To configure your time server, run
w32tm /config /manualpeerlist: /syncfromflags:MANUAL
To update the time, run w32tm /config /update
To verify the time, run w32tm /monitor

Example:
w32tm /config /manualpeerlist:ntp.ubc.ca /syncfromflags:MANUAL

w32tm /config /update

w32tm /monitor

If the right time server is still not being used, check the Default Domain Controllers group policies' Computer configuration/Administrative Templates /System/Windows Time service/Time Providers . Ensure that all three settings listed are set to “not configured”.

User may experience an error message, "the process hppostprocessing stopped unexpectedly with status 13 " in MAC 10.4.x when trying to print.

A couple of people I know have tried to install HP print drivers on their Macs which end up preventing them from printing on our TCP/IP network. One fix is to run the following commands from Terminal:

cd /Library/Printers/hp/filter

sudo chmod 775 hppostprocessing

For more details, refer to:

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=110&prodSeriesId=412144&prodTypeId=18972&prodSeriesId=412144&objectID=c00736758

Restart the VMWare Management Service

Sometimes VMWare Virtual Infrastructure Client reports that VMs are disconnected. The solution is usually to restart the service that the VI client is connecting to by SSHing into the host machine and restarting the management service by running "service mgmt-service restart".

For more info, check out:
http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&docType=kc&externalId=1003631&sliceId=1&docTypeID=DT_KB_1_1&dialogID=24868783&stateId=1%200%2024872576

Cisco VLANs

To add a VLAN with trunking already set up, log in to the VTP server:

1. configure terminal
2. vlan x (where x is your VLAN name to allow the VLAN to be trunked)
3. name y (where y is the name you'd like to give your VLAN)
   

Which pid corresponds to which AppPool?

In troubleshooting IIS 6.0 performance issues, it's helpful to use Application Pools (AppPool) to isolate web sites to their own instance of w3wp.exe . Once you perfmon the w3wp.exe instances, you'll need to know which instance corresponds to which pool. The command you'll need is:

cscript c:\windows\system32\iisapp.vbs