SysNet Tips

ERROR :  The WinRM client cannot process the request. If the authentication scheme is different from Kerberos, or if the client computer is not joined to a domain, then HTTPS transport must be used or the destination machine must be added to the TrustedHosts configuration setting. When the local computer is not in a domain, the following procedure is required for remoting.     1. Configure the computer for HTTPS transport or add the names of the        remote computers to the TrustedHosts list on the local computer.        For instructions, see "How to Add a Computer to the TrustedHosts        List" below.     2. Verify that a password is set on the workgroup-based computer. If a        password is not set or the password value is empty, you cannot run        remote commands.    ...

SRV records are the important elements for Active Directory to function properly. In this session, just a quick share on What SRV records used for Active Directory: _msdcs This is a Microsoft-specific subdomain that stores SRV records for domain controllers with roles in AD. These roles include domain controllers, global catalog servers, and primary domain controller emulators. _sites This contains records for domain controllers based on site. Microsoft Clients like Windows 2000/XP/Vista can use this record to locate domain controllers and global catalog servers that are in their site, so that they can avoid using services across the WAN. _tcp This contains domain controllers in the AD domain. If windows clients need to find a DC in a specific site, they will look here. The TCP protocol will be used to request the information. _udp Kerberos clients can use UDP port 88 to request tickets and port 464 for password changes. DomainDnsZones Zone information that sh...

After upgrade to IE7/8, or when you install Windows 2008 by default, when you download files from the internet, you will see the following error: "Your current security settings do not allow this file to be downloaded" Microsoft do so is to fight unwanted program to be download to the PCs. However, if you would like to enable the mentioned settings: On your IE, click Tools -> Internet Options . Click on Security tab, on Internet , click Custom Level . On settings, find a section that shows download . On File download, put it Enable .

One picture is max 10k, will not really add size to AD Database. 1) Get ready your picture, ours in jpg format, less than 10k, remember. 2) In Exchange 2010, launch Exchange management shell and type this command: import-RecipientDataProperty -Identity poo -Picture -FileData (Byte[]] $(Get-content -path "C:\Photos\poo.jpg" -Encoding Byte -ReadCount 0)) 3) Launch your Outlook 2010 and mouse over the account in your e-mail

Let’s begin the guide without wasting time. Just make sure that you have a pen drive with 4GB + capacity if you are making a bootable USB flash drive. Requirements to create bootable Windows USB: # Windows 7 or Vista ISO # Pen drive with 4GB+ (2 GB is sufficient for XP) # 15 Minutes of free time Procedure: 1. Insert your USB flash/pen drive to your system and backup all the data from the USB as your USB drive will be formatted during the process. 2. Now download WinToFlash tool (free) from here . 3. Run the tool, and browse to your Windows 7, Vista, or XP DVD files (make sure that your USB drive letter is correct). 4. Click Create button to begin the bootable USB process. Wait for few minutes to see the bootable USB. 5. That’s all!

Snapshots serve as a mechanism that allows us to revert virtual machines back to a previous state in a timely manner. A common issue when dealing with virtual machines and taking multiple snapshots occurs when the virtual machine will no longer stay running. In these scenarios, the VM will typically pause itself and reported to be in a “Paused-Critical” state. This issue is caused by a lack of system resources available to the host. More specifically, this occurs when there is not enough free hard disk space available on the host drive where the virtual machine snapshots are stored. So how does this happen? Well, an AVHD file is created every time you create a snapshot of the VM. The problem is that these files are often quite large and can add up on you before you know it. Also, deleting the snapshots from Hyper-V manager will remove the link to them but won’t delete the AVHD files off of the physical disk. Your initial reaction when winding up in a Paused-Critical state ...

I just fixed this one. I had to create a registry entry in " \HKLM\SOFTWARE\Microsoft\Internet Explorer " with the version information. Make a new string value called " Version ", and enter the version information, in my case I entered "7.0.5730.13". I don't think that it matters too much what version you enter as long as it is later that the 4.01 that is required.

When I tried to configure the adapter, the following error occurred: “The IP address < ip address> you have entered for this network adapter is already assigned to another adapter…” So, in order to uninstall the old network adapter do the following: Click Start , point to All Programs , point to Accessories , and then click Command Prompt . At a command prompt, type the following command , and then press ENTER: set devmgr_show_nonpresent_devices=1 Type the following command a command prompt, and then press ENTER: start devmgmt.msc Troubleshoot the devices and drivers in Device Manager. NOTE : Click Show hidden devices on the View menu in Device Manager before you can see devices that are not connected to the computer. When you finish troubleshooting, close Device Manager. Type exit at the command prompt.Note that when you close the command prompt window, Window clears the devmgr_show_nonpresent_devices=1 variable that you set in step 2 and prevent...

An awesome website to test email addresses, the MX records and a test SMTP conversation for them is: http://centralops.net/co/EmailDossier.aspx Here is a screenshot of the type of information it produces:

If you are looking to migrate to Exchange 2010 from 2003 or 2007, or prehaps perform a new Exchange 2010 installation there is a cool tool Microsoft has just released called Deploy Assist. The Deployment Assist tool asks you a series of questions about your environment. Based on these questions it will then provide you with step by step instructions on how to perform the migration or fresh installation of exchange 2010. This is very handy as it tackles all kinds of network environments. To use this tool go to the following link: http://technet.microsoft.com/exdeploy2010

To find out which domain controller your PC is talking to, use the following command: nltest /dsgetdc:domainname.local or "set l" less informative but quicker and uses built in command This is very handy when testing your active directory sites and services topology to ensure it is setup correctly. If you want to understand the process in which a client computer locates its domain controller

High CPU usage due to hardware interrupts problem: Even with no program running, the CPU usage is 60% and the hard disk is going at full speed (indicating I/O?) I have done all the standard scans for malware/Viruses and came up with no viruses and very little ad/spyware. I noticed high CPU usage at times when there was no program running. I ran process explorer and found that the CPU usage due to hardware interrupt got up to about 80% and there are always at least 1,500 interrupts per scond (CSwitch Delta column). I believe this is excessive and I also believe it to be a hardware problem or possibly a driver issue.  This turns out  ATA/IDE controllers will often revert back to PIO mode instead of Ultra-DMA.  (According to MS KB article on the problem here .) Solution: Check the problem by examining the controller’s Primary and Secondary IDE settings: Device Manager -> IDE ATA/ATAPI controllers -> Primary or Secondary IDE Channel -> Properties ...

Accidentally deleted an important file? Lost something important when your computer crashed? No problem! Recuva recovers files deleted from your Windows computer, Recycle Bin, digital camera card, or MP3 player. And it's free! Restore that File or Photo using DiskDigger If you don’t have any luck with Recuva, you can always try out DiskDigger, another excellent piece of software. Note that DiskDigger doesn’t require installation, making it a really great tool to throw on your PC repair Flash drive. Start off by choosing the drive you want to recover from… Download Recuva from piriform.com Download DiskDigger from dmitrybrant.com ADD DEL Move ADD DEL Move ADD DEL Move ADD DEL Move ADD DEL Move ADD DEL Move

This guide describes important tuning parameters and settings that you can adjust to improve the performance of the Windows Server 2008 R2 operating system. This guide describes each setting and its potential effect to help you make an informed decision about its relevance to your system, workload, and performance goals. This paper is for information technology (IT) professionals and system administrators who need to tune the performance of a server that is running Windows Server 2008 R2. This information applies to the Windows Server 2008 R2 operating system. Included in this white paper: • Choosing and Tuning Server Hardware • Performance Tuning for the Networking Subsystem • Performance Tuning for the Storage Subsystem • Performance Tuning for Web Servers • Performance Tuning for File Servers • Performance Tuning for Active Directory Servers • Performance Tuning for Remote Desktop Session Host (formerly Terminal Server) • Performance Tuning for Remote Des...

Let’s look at what exclusion configuration should look like. On Hyper-V host you’ll find couple of core processes that’s crucial to host and VM performance. Prevent following processes from AV scans by excluding following as part of Hyper-V AV policy:   VMMS.exe | VMWP.exe . Also exclude root directories where VM configurations and Virtual Hard Disks are stored:   C:\ProgramData\Microsoft\Windows\Hyper-V     C:\Users\Public\Documents\Hyper-V\Virtual Hard Disks, Custom VM configuration, Virtual Hard Disk and Snapshot directories .  Next, create AV exclusions for following file extensions:   *.XML | *.VHD | *.AVHD | *.VFD | *. VSV | *.ISO . | *. BIN XML files These files contain the virtual machine configuration details.  There is one of these for each virtual machine and each snapshot of a virtual machine.  They are always named with the GUID used to internally identify the virtual machine or snapshot in question...

The short answer is “Virtual machine snapshots are supported in production environments, but not recommended.”  The longer answer is that there are a number of issues you should consider before deciding to use virtual machine snapshots in a production environment.  The are as follows: Performance: as virtual machine snapshots use differencing disks, there is a performance overhead to be considered.  This overhead is not too noticeable if you are already using dynamically expanding virtual hard disks, and you only plan to have a small number of snapshots around.  If you are using fixed size virtual hard disks – then there will be a noticeable performance hit to using a virtual machine snapshot. Disk space : once again, because virtual machine snapshots use differencing disks, there is an added disk space usage involved with having a virtual machine snapshot.  This is not too significant if you are using dynamically expanding virtual hard disks – ...

You may need to use the Inbox Repair Tool if you open your Outlook .pst file and receive this message: "Unable to expand the folder. The set of folders could not be opened. Errors could have been detected in the file drive :\Documents and Settings\ user \Local Settings\Application Data\Microsoft\Outlook\Outlook.pst. Quit all mail-enabled applications, and then use the Inbox Repair Tool. " Included in all versions of Outlook is Scan.pst, a tool that may help in the event your .pst file becomes corrupted. Run scan.pst repeatedly until there are no errors. To get at it, you'll need to navigate to this path using Windows Explorer: For Outlook XP & 2003: Hard Drive Letter :\Program Files\Common Files\System\MSMAPI\LocaleID (which is 1033 for the USA or similar) For Outlook 2007: Hard Drive Letter :\Program Files\Microsoft Office\OFFICE12. Now, inside this folder, you're looking for this particular setup file: "Scanpst.exe" When yo...

Are you someone who likes to dig really deep into the hardware configuration of your computer? If so, HWiNFO32 is probably the best program ever for getting detailed system hardware information on the processor, hard drives, video cards, network cards, OS, and more. HWiNFO32 – System Hardware Information

Nice article with suggestions on how to keep your PC running smoothly. Topics include Disk Check, Removing Temp Files, Defragmentation and other suggestions on how and when to run built-in Windows tools. All OS’s. Optimize your Windows computer

Find your PCs open ports quickly with Roadkill’s tiny Scan Port scanner. Ports filtered by a firewall will easily be identified too. Download Roadkill’s Scan Port v1.3