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Iperf is a very helpful tool written in C++ to measure network bandwidth and quality. It can be used to analyze both TCP and UDP traffic.

Jperf or Xjperf (both of them are the same thing. Don’t confuse about the difference) equip Iperf with graphical interface. If you don’t like to spend your time by command line, use Jperf.

I am going to give you some information about Iperf and Jperf. First of all, the project links of these tools are here:

• Iperf: http://sourceforge.net/projects/iperf/
• Jperf: http://sourceforge.net/projects/jperf/

Most people think that FTP speed depends on server and network speed. How about FTP client? Which FTP client should you prefer If you need high speed?

Which one is the best?

I tested three FTP clients:

• FileZilla 3.5.3
• CuteFTP 8.3.2
• Total Commander 7.55

Here is test environment:

• Operating system: Windows 7 Ultimate
• FTP Server speed: 30 Mbps (download), 140 Mbps (upload)
• Network speed:  32 Mbps (download), 2 Mbps (upload)

I have tried download/upload three times and calculated average. All clients have had the same conditions. The results:

FTP clients comparison

* I used multi-part download and normal upload on CuteFTP. I used default settings on FileZilla and Total Commander.
* Passive mode was used for both download and upload (Find out more).

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As a result:

• Don’t use Total Commander! Upload speed of Total Commander is terrible!
• If you like open source programs choose FileZilla.
• If you like programs that have user-friendly interface, choose CuteFTP.

By the way, my favorite is CuteFTP!

USD 37.9 Billion in a year! The most interesting thing is %96 of the revenue comes from Adwords. That’s why we see advertisements on whole Googles services like Gmail, Search, Documents etc.

Check this out:

Google Revenue Infographic

If you want to sync Google Calendar and Outlook, Google Calendar Sync tool is all you need. There are 2-way and 1-way synchronizing alternatives. Try it:

http://dl.google.com/dl/googlecalendarsync/googlecalendarsync_installer.exe

Google Calendar Sync tool

If you have Google Apps for Business (I mean you pay for the service), you can use an excellent tool that name is Google Apps Sync for Outlook. It provides mail, calendar, contact, free/busy data syncronization capability.

http://www.google.com/apps/intl/en/business/outlook_sync.html

Lastly, if you bored of Outlook (How can it be possible?) and want to move whole data to Google Apps, Migration Tool is for you:

http://tools.google.com/dlpage/outlookmigration

You might have diffuculty understanding domain name status codes because there are quite a lot of codes. Look at the list and figure.

• ACTIVE: A domain can only be modified by the domain registrar.
• REGISTRY-LOCK: The domain can not be modified or deleted by the registrar. The registry must remove the REGISTRY-LOCK status for the registrar to modify the domain.
• REGISTRAR-LOCK: The domain can not be modified or deleted. The registrar must remove REGISTRAR-LOCK status to modify the domain.
• REGISTRY-HOLD: The domain can not be modified or deleted by the registrar. The registry must remove the REGISTRY-HOLD status for the registrar to modify the domain.
• REGISTRAR-HOLD: The domain can not be modified or deleted. The registrar must remove REGISTRAR-HOLD status to modify the domain.
• REDEMPTIONPERIOD: The registry sets this status when a registrar requests that the domain name be deleted from the registry and the domain has been registered for more than 5 calendar days (if the delete request is received within 5 days of initial domain registration it will instead be deleted immediately). The domain will not be included in the zone. The domain can not be modified or purged; it can only be restored. Any other registrar requests to modify or otherwise update the domain will be rejected. The domain will be held in this status for a maximum of 30 calendar days.
• PENDINGRESTORE: The registry sets this status after a registrar requests restoration of a domain that is in REDEMPTIONPERIOD status. The domain will be included in the zone. Registrar requests to modify or otherwise update the domain will be rejected. The domain will be held in this status while the registry waits for the registrar to provide required restoration documentation. If the registrar fails to provide documentation to the registry within 7 calendar days to confirm the restoration request, the domain will revert to REDEMPTIONPERIOD status. The domain status will be set to ACTIVE only if the registrar provides documentation to the registry within 7 calendar days to confirm the restoration request.
• PENDINGDELETE: The registry sets this status after a domain has been set in REDEMPTIONPERIOD status and the domain has not been restored by the registrar. The domain will not be included in the zone. Once in this status all registrar requests to modify or otherwise update the domain will be rejected. The domain will be purged from the registry database after being in this status for 5 calendar days.

How domain names expire?

The source: http://www.registercompass.com/wiki/domains/pendingdelete.aspx