As of this writing, the current authoritative list, from here:
|| VeriSign, Inc.
|| University of Southern California (ISI)
|| Cogent Communications
|| University of Maryland
|| NASA (Ames Research Center)
|| Internet Systems Consortium, Inc.
|| US Department of Defense (NIC)
|| US Army (Research Lab)
|| VeriSign, Inc.
|| RIPE NCC
|| WIDE Project
In Windows Server 2012 R1/2, 2008 R1/2, 7, Vista, and 2003 SP2 and later, it’s good to run the following two commands in an administrative command prompt (an ordinary command prompt for 2003):
w32tm /config /manualpeerlist:pool.ntp.org,0.pool.ntp.org,1.pool.ntp.org,2.pool.ntp.org /syncfromflags:MANUAL /reliable:YES /update
In Server 2003 SP1 and before, and XP, we use this, because /reliable doesn’t exist:
w32tm /config /manualpeerlist:pool.ntp.org,0.pool.ntp.org,1.pool.ntp.org,2.pool.ntp.org /syncfromflags:MANUAL /update
Sometimes w32tm doesn’t exist as a service, and has to be registered:
Under Windows 2000, we need to go a bit more archaic:
net time /setsntp:pool.ntp.org
net time /querysntp
If you are using Windows DHCP services, the above is best for the server, but for all of the workstations under its control, place the server’s IP in the Time Server option. This is probably best for a domain. When you have standalone or mobile-capable machines, best to just use the w32tm configuration above.
A great place for general DNS lookup info:
One for WHOIS (use the little submit box in the far upper-right corner):
And one for info about IP addresses:
What will help is a “Per IP Address” type traffic management policy, in Setup / Actions / Traffic Management in WSM, using zero for maximum, 256 for “Maximum instance” (this is the number of IP addresses according to the documentation), and most significantly a low “guaranteed bandwidth” calculated by a formula at or close to this:
(TotalInternetBandwidth ÷ TotalDHCPLeases) X 0.8
The static multiplier from 0.8 to 0.5 or even less depending on situation, but done properly it will keep everyone working.
Here’s a great new one, HTML5 only, no Flash or Java:
Here’s a commonly used one which requires Flash:
And another which uses java:
For CIDR to IP range (IP range extraction):
For IP range to CIDR:
For lots and lots more:
Wget is an excellent command-line tool for retrieval of data from http or ftp servers. Its current most-up-to-date Windows version seems to be here:
After changes are made to domain contacts at GoDaddy, Wild West Domains, and subsidiaries, it will say something like:
Transfer locked until 4/8/2014: Contact information change
This is a 60-day automatic lock, and it can be overridden by an email from the registrant contact to firstname.lastname@example.org.
Here’s a great place to do so: