exchange 2007 top number of mailbox size from Exchange Management shell

Open Exchange Management shell from Exchange server and run below command.
Where first N means first n numer mail boxes replace N with number..10 or 20 or 100...etc

Get-Mailbox -database DB2 -ResultSize Unlimited| Get-MailboxStatistics | Sort-Object TotalItemSize -descending |Select-Object DisplayName,ItemCount,@{name="MailboxSize";exp={$_.totalitemsize}} -first N

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There are currently no logon servers available to service the logon request

When bringing a new server on line, you may see an error that says: The Security System detected an authenticaton error for the server ldap/xxxxxxxt. The failure code from the authentication protocal Kerberos was "There are currently no logon servers available to service the logon request. Event id: 40960 category: SPENGO (Negotiator) (0xc000005e) This issue is the result of missing or the inability to contact the DNS SRV (SeRVice) records. You just brought a new server on line. To complete the process, the server has to register its own host A record and SVR record in DNS. To do this, Type the following at the command prompt: IPconfig /flushdns IPconfig /registerdns net stop netlogon net start netlogon flushing DNS will remove all old or improper DNS records registering dns records registers your Host A record restarting the netlogon will register your SRV records. __________________________________________________________________________________ Speaking of ...

test vpn bandwidth and speed with iperf

This article explains how to use a free utility called iPerf to test the speed of a VPN connection. In this example I am running iPerf on windows but there are other versions available (i.e. Linux). Download iPerf from http://linhost.info/2010/02/iperf-on-windows/ Put a copy on 2 computers with 1 either side of the VPN. In this example I have put in the c:\triangle folder On the “server” PC open a cmd prompt and navigate to the folder containing iperf. Note on computers running Win7 or Win2008 I recommend running the cmd prompt in elevated mode. Run the command iperf –s On the “client” PC open a cmd prompt and again navigate to the folder containing iperf. Run the command iperf –c After a short while the estimated bandwidth is displayed.

How fix Virtual Memory Too low in Windows XP,Vista,Windows 7,Windows Server 2003

Some times i got the icon on below right side of my system in Windows XP,Vista,Windows 7,Windows Server 2000,2003.How can Fix this solution.Here the solution. This solution work for all types of Windows i.e windows 95 to Windows 7. Virtual Memory is the space your computer uses when it's short of RAM(Random Access Memory),which is the memory used when running programs like Microsoft word,Power Point and other application in our system . Solution 1: Try to increase Your RAM size. Solution 2: Change the Paging Size of drive as shown below steps 1.Go to MyComputer--> Right Click--> Click Properties. 2.Click Advanced tab from System Properties tab. 3.Click Sett...

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