if you are a linux dummy as me you might wonder how to install an ssh server on your Linux box.
I had to learn this is an easy task that can be performed by just entering the following command.
apt-get install openssh-server
This will download the package and install the service for Open SSH. after that you are able to access your server via Putty SSH or any other SSH Client.
After a self signed certificate that exchange creates when Exchange Server is installed has expired, you’ll have to renew the certificate on the Hub Transport and on the Edge Server if there is one.
You know you’ll have to do this if you find the following error in the eventlog of the Exchange Server.
Log Name: Application
Source: MSExchangeTransport
Date: 24.08.2010 10:48:21
Event ID: 12019
Task Category: TransportService
Level: Error
Keywords: Classic
User: N/A
Computer: server.domain.local
Description:
The remote internal transport certificate expired. Certificate subject: CN=edge.
To view the currently installed certificate use the Get-ExchangeCertificate ¦ List cmdlet
To create a new certificate you should use the New-ExchangeCertificate cmdlet.
You’ll have to create a new certificate on the Hub Transport as well as on the Edge server. You’ll have to re rebuild the EdgeSubscription on the Hub Transport server.
You can follow the instructions on the following page. Here
The Microsoft Event Description can be found on the following page. Here
What to do if the DVD drive is no longer available in Explorer?
Check device manager, it might be that there is an error on the device. If there is an error with Code 19, you’ll have to change the following:
open regedit
navigate to
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Class \ {4D36E965-E325-11CE-BFC1-08002BE10318}
there you’ll find “LowerFilters” and/or “UpperFilters”
delete these two keys and reboot the system
The DVD drive will be recognized as a new device and can be installed again. It will work properly after that re-installation.
What to do if you have to check if a remote system that’s running with 32Bit Windows would also support 64Bit?
The easiest way to do this is to download the application CPU-Z, this freeware application works on various windows based systems, even on server systems.
The application will then read out the informations on your CPU and you can see if the CPU supports EM64T.
Check the Link for further Informations and Download.
Symptom: On Windows XP machine update KB974417 cannot be installed and fails with the warning that it does not apply to any installed product.
Problem: There is another update that blocks the installation.
Solution: Uninstall Update KB976569 in add and remove software. You will find the update when showing updates in the list under .NET Framework 2.0 Service Pack 2. After uninstalling, you’ll have to reboot the computer. Install the KB974417 before reinstalling KB976569. In the end both updates will be installed.
Link to original article: Here
Problem: All clients in the network have windows firewall enabled. This may cause problems with the anti-virus to update the clients.
Solution: Disable all firewall services on the clients.
HowTo: Create a GPO that disables every computers windows firewall. You can find an article describing exactly how to do so can be found here.
Additional Info: By doing the stuff described in the link above, the service of the windows firewall is still running. You’ll have to deactivate the service via GPO as well. To do so, go to the group policy editor and ad the following entry: Computer Configuration\Control Panel Settings\Services. Add an entry for the windows firewall service. If your clients use windows XP you have to add an entry for a service called SharedAccess Start type should be set to Disabled. You might also configure to stop the service if it’s still running. If your clients are using windows 7 the service name would be MpsSvc.
Problem: sage50 installation fails on Windows 7
Reason: If you start the setup.exe on the DVD, the installation starts with the installation of pervasive database engine before installing sage50.
Solution: Go to the DVD, copy the complete pervasive directory to you local disc. Search the directory for a file called ptksetup.ini then search for the following row:
;PVSW_PSQL_INSTALL_XIO=1
replace 1 by 0 and remove the semicolon in front
PVSW_PSQL_INSTALL_XIO=0
then run the Installation of the pervasive database server out of the directory that you copied earlier.
after the installation is finished, go to the DVD again and start setup.exe. The installation will then work and the program can be used without any problems.
Have fun!
Problem: If you have a web-server with Server 2008 as operating system, you may experience very slow connections to the hosted website and errors in rdp sessions saying that there was a protocol error.
Reason: In Server 2008 IPv6 is enabled by default. This may lead to connection problems and unavailability of hosted services from other systems.
Solution: To solve these problems disable IPv6 on the server.
Attention: If you just uncheck the IPv6 check-box on your network card, you do not disable IPv6. To do so open registry go to the following hive HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\. There should be a key called “DisabledComponents” if so change it’s value to “FF” in hex. If it does not exist, create a new DWORD Key with the value “FF” After you did so, reboot the server and check if the performace has increased.
Source: Microsoft KB Article
Symptom: After updating NVC to NEM the Exchange IS is not starting
Problem:The NVC had a flag set if the NVC was on the same server as Exchange. If this flag is set and NVC is no longer available, Exchange cannot start the informationstore.
SolutionTo fix this issue, go to the registry:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeIS\VirusScan
Change the value from 1 to the following:
Key: Enabled
Type: REG_DWORD
Value: 0
I happend to see a Windows Vista Business PC fully patched that could not connect the network drives via GPO from 2008 domain. Group Policy Preference Client Side Extensions for Windows Vista (KB943729) patch was installed on the client. But still no network drives were mapped to the client.
In the eventlog of the client the following entry is created
Log Name: Application
Source: Group Policy Folders
Date: Date
Event ID: 4099
Task Category: (2)
Level: Warning
Keywords: Classic
User: SYSTEM
Computer: Computer Name
Description:
The client-side extension could not log RSoP data because it failed with error code ”0x8004401e This is not a valid MOF file”.
The reason is that the drive mapping ist not working if the following condition is true.
The user that you want the network drives to connect, is member of the local administrators group and the UAC feature of Windows Vista is turned on.
To resolve this issue you’ll have to do one of the following things:
1. remove the user from local admin group
2. disable UAC
3. Add an entry to the client registry as described in the following KB article: KB937624
After doing one of these steps you should do a reboot or gpupdate /force for the changes to apply.