Perf Charts service experienced and internal error

If you encounter this problem in vSphere 4 just restart HTTP SSL service, modify SQL Browser from disabled to automatic and start the service.

Network redundancy VMWare

If you receive this warning in your VirtualCenter it means that you don't have two network cards connected to your service console. If you don't have enough network cards to make a redundant access to service console just apply the following procedure.

1)Go to cluster and right click, then click Edit settings
2)Click VMware HA then click Advanced Options on the right bottom side
3)Add the following as an option line "das.ignoreRedundantNetWarning" and value "True". Then of course click ok....
4)If the error is still there, either Reconfigure for HA on each host or remove HA and then add back on the cluster level.

Temporary email address

You need a temporary email address to register on a website for example ? http://www.dispostable.com

How to active report logging in Citrix licence server

1. Open the Citrix.opt file located by default in Program Files\Citrix\Licensing\MyFiles

2. Add the following line to the Citrix.opt file:
REPORTLOG +"C:\Program Files\Citrix\Licensing\LS\reportlog.rl"

3. Stop and restart the CitrixLicensing service or click Update License Data in the License Management Console or run lmreread –c “path to license file” at the command line. Each of these will reread the Citrix.opt file into the memory of the license server.

Device busy

Sometime when you try to unmount a partition you get a device busy message. To know which process is tied with the partition use the commando fuser /partitionname.

MailScanner upgrade problem under Debian

When you try to upgrade from MailScanner 4.58 you receive an error telling you the prerm script cannot stop the MailScanner process. Just edit the script in /var/lib/dpkg/info/mailscanner.prerm and remove the last IF group.

PNAgent with NATing

Sometimes you need to set NAT for your Citrix server. You have to use the command altaddr to let your Citrix know your WAN ip address.

Then you need to edit the file c:\inetpub\wwwroot\citrix\PNAgent\conf\webinterface.conf and edit ClientAddressMap to tell when the WAN ip must be sent back to the customer (i.e. a user connecting from outside the internet).

Linux Network Tools

Here are some of my favorites network tools.
NTOP (http://www.ntop.org): determine which host use which protocols, bandwidth ...
IFTOP (http://www.ex-parrot.com/pdw/iftop) : live view of your bandwidth
BANDWIDTHD (http://bandwidthd.sourceforge.net/) : report of your host's bandwidth

These tools need to be run on a bridge or on a Linux machine connected to a monitoring port on a switch.

Ubuntu DNS resolution

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List Citrix Components Versions

Thanks to my friend Laurent. He learned me a command I didn't know.
If you'd like to know the version of all your Citrix components just type cpatch /l.

SSH Certificate authentication for i5

I'm working for a customer of us who want to monitor some parameters on his i5. I use SSH to run commands and to extract the results. However I had a problem using certificate authentication. Authorized_users file, certificates, permissions ... everything was done as it must be but I didn't get access. After some debugging I realized the homedir on the i5 had to be in upper case though i5 is not case sensitive.

Interesting DNS stuff

http://www.robtex.com/ip/195.238.2.21

iPhone and Exchange SSL push mail

In order to get the push mail working with an SSL web access to Exchange. You have to make the following change on your Exchange server. Pay attention to the fact that this will also affect Windows Mobile sync.

Create a secondary virtual directory for Exchange server
You must use Internet IIS Manager to create this virtual directory for Exchange ActiveSync and Outlook Mobile Access to work. If you are using Windows Server 2003, follow these steps:

1. Start Internet Information Services (IIS) Manager.
2. Locate the Exchange virtual directory. The default location is as follows:
Web Sites\Default Web Site\Exchange
3. Right-click the Exchange virtual directory, click All Tasks, and then click Save Configuration to a File.
4. In the File name box, type a name. For example, type ExchangeVDir. Click OK.
5. Right-click the root of this Web site. Typically, this is Default Web Site. Click New, and then click Virtual Directory (from file).
6. In the Import Configuration dialog box, click Browse, locate the file that you created in step 4, click Open, and then click Read File.
7. Under Select a configuration to import , click Exchange, and then click OK.

A dialog box will appear that states that the "virtual directory already exists."
8. Select the Create a new virtual directory option. In the Alias box, type a name for the new virtual directory that you want Exchange ActiveSync and Outlook Mobile Access to use. For example, type exchange-oma. Click OK.
9. Right-click the new virtual directory. In this example, click exchange-oma. Click Properties.
10. Click the Directory Security tab.
11. Under Authentication and access control, click Edit.
12. Make sure that only the following authentication methods are enabled, and then click OK:
* Integrated Windows authentication
* Basic authentication
13. On the Directory Security tab, under IP address and domain name restrictions, click Edit.
14. Click the option for Denied access, click Add, click Single computer and type the IP address of the server that you are configuring, and then click OK twice.
15. Under Secure communications, click Edit. Make sure that Require secure channel (SSL) is not enabled, and then click OK.
16. Click OK, and then close the IIS Manager.
17. Click Start, click Run, type regedit, and then click OK.
18. Locate the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MasSync\Parameters
19. Right-click Parameters, click to New, and then click String Value.
20. Type ExchangeVDir, and then press ENTER. Right-click ExchangeVDir, and then click Modify.

NoteExchangeVDir is case-sensitive. If you do not type ExchangeVDir exactly as it appears in this article, ActiveSync does not find the key when it locates the exchange-oma folder.
21. In the Value data box, type the name of the new virtual directory that you created in step 8. For example, type /exchange-oma. Click OK.
22. Quit Registry Editor.
23. Restart the IIS Admin service. To do this, follow these steps:
1. Click Start, click Run, type services.msc, and then click OK.
2. In the list of services, right-click IIS Admin service, and then click Restart.
24. If you want to reuse Forms-based Authentication on the Exchange server, follow these steps to re-enable Forms-based Authentication on the /Exchange virtual directory in Exchange System Manager.
1. Open Exchange Manager.
2. Expand Administrative Groups, expand the first administrative group, and then expand Servers.
3. Expand the server container for the Exchange Server 2003 server that you will be configuring, expand Protocols, and then expand HTTP.
4. Under the HTTP container, right-click the Exchange Virtual Server container, and then click Properties.
5. Click the Settings tab, click to select the Enable Forms Based Authentication check box, and then click OK.
6. Close Exchange Manager.
7. Click Start, click Run, type IISRESET/NOFORCE, and then press ENTER to restart Internet Information Services (IIS).

HP Thinclient and Altiris

For a customer we have setup an environment with HP T5630. To manage these thinclients you got to use Altiris Deployement. Licence is included in the Thinclient.

Software is very powerfull but heavy too install. I've always got an error message telling me "Cannot run dbinstaller.exe". After some searches I found that MSSQL needed some reconfiguration. Activated named pipe and TCP/IP and setup was running fine.