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  • Internal Code Signing: Key Distribution, or Certificate Server?

    - by Myrddin Emrys
    I should first note that we have nobody in IT with significant familiarity with self-signed certification. We have a moderately sprawling network (one forest, many locations), and we are now rolling out internal code signing; until now users have run untrusted code, or we even disabled(!) the warnings. Intranet applications, scripts, and sites will now be signed with self certification. I am aware of two obvious ways we can deploy this: Distributing the keys directly via a group policy, and setting up a cert server. Can someone explain the trade-offs between these two methods? How many certs before the group policy method is unwieldy? Are they large enough that remote users will have issues? Does the group policy method distribute duplicates on every login? Is there a better method I am not aware of? I can find a lot of documentation on certifications and various ways to create them, but I have not been able to find something that summarizes the difference between the distribution methods and what criteria make one or the other superior.

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  • Remote Desktop fails after VPN connection

    - by Samet Sorgut
    The local computer (comp 1) is connected to a remote computer (comp 2) with Remote Desktop. On the remote computer (comp 2), I try to establish an VPN connection to a different remote computer (comp 3). Once I try to establish the VPN connection from the remote computer (comp 2) to the second remote computer (comp 3), Remote Desktop freezes on comp 1. It is not possible to connect to comp 2 again via Remote Desktop. What can be done to connect to this remote computer (comp 2) after it establishes a VPN connection? The only thing that comes to my mind is to install a second NIC and configure Remote Desktop to accept connection from this NIC while VPN is working from the other... What do you suggest? EDIT: I want to use the internet connection of the VPN, so all traffic should go over the VPN but still RDP working. My IP: 100.0.0.1 The IP where I'm connecting via RDP: 200.0.0.20 (Mask: 255.255.255.192, Gateway: 200.0.0.193) Where the 200.0.0.1 connects to VPN the IP of the VPN is: 65.254.61.250 Will routing like this help (Command is issued in 200.0.0.20, the RDP location): route ADD 65.254.61.250 MASK 255.255.255.192 200.0.0.193 Couldn't add gives the error: The route addition failed: The parameter is incorrect. I tried before connecting to VPN.

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  • Do two portforward rules translate to "and"?

    - by blsub6
    I just set up an Exchange server to replace my DeskNow mail server. I want to start testing my internet mail exchange of my Exchange server. I can only set the MX records on my DNS up to my one external IP address so I was thinking that I could set up a firewall rule on my internet-facing firewall that port forwarded the smtp packets to two different servers. My question is: If I do that, will that mean that the smtp packets will be forwarded to just the first internal IP on the list? Or does it mean that the packet will be cloned and sent to both IPs?

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  • Windows Server Connected to Domain Without Being Domain Controller

    - by saluce
    Can a Windows Server be connected to an Active Directory domain without being a domain controller? Here's the scenario: I want to use Windows Server 2012 to run several virtual machines for testing our web application in a variety of environments. We have a corporate domain, and I'd like to use the corporate login (or at least a common login) on each of the virtual machines without necessarily having to get IT to set up each virtual machine on the corporate domain. Also, I need the server itself to be able to authenticate domain logins (the app uses domain login information for users to login). However, I absolutely do NOT want it to be a DC on the corporate network. Thus, my questions: Can a Windows Server be connected to an Active Directory domain without being a DC? Can a Windows Server authenticate users on another domain without being a part of that domain? Can a Windows Server be a domain controller in a small network (comprised of just the server and itself) and use the corporate domain's Active Directory for authenticating user logins to the server, the web app, and the virtual machines?

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  • How to know which disk has failed on a Mirrored Raid? marked as DR0

    - by Saariko
    Our 2ndry DC, which is on a W2K8R2 Mirrored software raid has lost it's sync, and disk management displays the failed redundancy error How do I know which of the disks has failed? (beside to try and replace one - and see if it loads and syncs) On the device manager, under disks I see both disks, one of them has an icon of: Disable, while the other doesn't Event log displays an event id 7 - bad block on Hard disk DR0 The thing is that looking in device manager, both disks are located in '0' location, which is bizzare

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  • How do I log back into a Windows Server 2003 guest OS after Hyper-V integration services installs and breaks my domain logins?

    - by Warren P
    After installing Hyper-V integration services, I appear to have a problem with logging in to my Windows Server 2003 virtual machine. Incorrect passwords and logins give the usual error message, but a correct login/password gives me this message: Windows cannot connect to the domain, either because the domain controller is down or otherwise unavailable, or because your computer account was not found. Please try again later. If this message continues to appear, contact your system administrator for assistance. Nothing pleases me more than Microsoft telling me (the ersatz system administrator) to contact my system administrator for help, when I suspect that I'm hooped. The virtual machine has a valid network connection, and has decided to invalidate all my previous logins on this account, so I can't log in and remotely fix anything, and I can't remotely connect to it from outside either. This appears to be a catch 22. Unfortunately I don't know any non-domain local logins for this virtual machine, so I suspect I am basically hooped, or that I need ophcrack. is there any alternative to ophcrack? Second and related question; I used Disk2VHD to do the conversion, and I could log in fine several times, until after the Hyper-V integration services were installed, then suddenly this happens and I can't log in now - was there something I did wrong? I can't get networking working inside the VM BEFORE I install integration services, and at the very moment that integration services is being installed, I'm getting locked out like this. I probably should always know the local login of any machine I'm upgrading so I don't get stuck like this in the future.... great. Now I am reminded again of this.

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  • Book Review: Defensive Database Programming With SQL Server

    It distils a great deal of practical experience; the writing of it was a considerable task; It packs in a great deal of information. Alex's book shows how to write robust database applications, and we can all learn from it. We took the book to a critic who never minces his words, and were relieved to find that Joe Celko liked it.

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  • Add Machine Key to machine.config in Load Balancing environment to multiple versions of .net framework

    - by davidb
    I have two web servers behind a F5 load balancer. Each web server has identical applications to the other. There was no issue until the config of the load balancer changed from source address persistence to least connections. Now in some applications I receieve this error Server Error in '/' Application. Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster. Source Error: The source code that generated this unhandled exception can only be shown when compiled in debug mode. To enable this, please follow one of the below steps, then request the URL: Add a "Debug=true" directive at the top of the file that generated the error. Example: or: 2) Add the following section to the configuration file of your application: Note that this second technique will cause all files within a given application to be compiled in debug mode. The first technique will cause only that particular file to be compiled in debug mode. Important: Running applications in debug mode does incur a memory/performance overhead. You should make sure that an application has debugging disabled before deploying into production scenario. How do I add a machine key to the machine.config file? Do I do it at server level in IIS or at website/application level for each site? Does the validation and decryption keys have to be the same across both web servers or are they different? Should they be different for each machine.config version of .net? I cannot find any documentation of this scenario.

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  • Visual Studio not auto-building when I press the debug button

    - by Kurru
    Hi I'm writing code in Visual Studio but whenever I want to test the application and press the green arrow for "Start debugging", Visual Studio does not automatically recompile the active solution for me and I have to manually build the solution then debug it. Visual Studio used to automatically build before debug and I want this back as contantly having to manually build is a serious pain. Thanks

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  • Windows 7 accounts on a 2008r2 DC keep getting locked out randomly

    - by Matt
    As the title states, this happens randomly to Windows 7 accounts on our Windows 2008R2 domain controller. We just had this start happening after changing from 123together hosted exchange to Rackspace hosted exchange. Also around this time our passwords on the DC started expiring, but not the exact day, and everyone has different days they need to change it before. It has only affected 10 out of 30 accounts, and I see no link between them. What are some fixes I should run or things to look for?

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  • How to change the default domain controller when querying AD in a different site ?

    - by Linefeed
    We have 2 different locations, and at both site we have multiple domain controllers (Win2008). In our application we use Serverless Binding to execute our LDAP queries http://msdn.microsoft.com/en-us/library/ms677945(v=vs.85).aspx. If we look at de DnsHostName of the LDAP://RootDse on site B we always get the default domain controller of site A. Therefor all LDAP queries go much slower. Is there a way to change the default domain controller per site ?

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  • Windows DFS Limitations

    - by Phil
    So far I have seen an article on performance and scalability mainly focusing on how long it takes to add new links. But is there any information about limitations regarding number of files, number of folders, total size, etc? Right now I have a single file server with millions of JPGs (approx 45 TB worth) that are shared on the network through several standard file shares. I plan to create a DFS namespace and replicate all these images to another server for high availability purposes. Will I encounter extra problems with DFS that I'm otherwise not experiencing with plain-jane file shares? Is there a more recommended way to replicate these millions of files and make them available on the network? EDIT: I would experiment on my own and write a blog post about it, but I don't have the hardware for the second server yet. I'd like to collect information before buying 45 TB of hard drive space...

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  • Is it a good practice to place the executable on a fileserver?

    - by Ice
    Assuming the components like *.dll's, *.ocx's installed and registered on the clients there exists the possibility to place the *.exe and some related files on the fileserver. To start the application there are links on the client's desktops which runs the \fileserver\AppPath\exe. Would you agree with such a layout? What if 'the client' is a terminal-server and 'the clients' means a terminal-server-farm?

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  • Forward RDP Connection from Server to Client

    - by Theveloper
    What I'm trying to achieve is in the following infrastructure: Server A running ADDS, DNS, DHCP, NPS LAN -Computer Client I -Computer Client II Server A NIC 1 goes to LAN Server A NIC 2 goes to Internet Server A provides DHCP and Internet access for Computer Clients How do I connect to Computer Client I or II through RDP from outside the network? Even when using credentials from Computer Client I (which are not in ADDS) the connection still only goes to the server.

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  • Is it possible to open an Active Director or Exchange Management Console user dialog directly from Powershell?

    - by Myrddin Emrys
    I'd like to be able to launch either the AD user dialog, or the EMC mailbox dialog directly from a Powershell script to open a specific user. The workflow goes something to the effect of "Does everything look correct on this user? Y/N" to continuing on, or to bringing up the account to edit. There's no reason to completely duplicate the functionality of these dialogs. I don't mind requiring that EMC or ADU&C already be open before the script is run, if necessary.

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  • How to print all users from windows-group to a textfile?

    - by Tim
    Hello, i'm trying to print all users of a group "Students" to a Textfile "Students.txt". I'm not in a domain, so this does not work: net group "Students" >> students.txt because i get following: This command can be used only on a Windows Domain Controller. Thank you in advance If anybody is interested in a VB.Net solution, i've programmed a Winform solution with a multiline Textbox to copy/paste the members (anyway, thanks for your help): Imports System.DirectoryServices 'first add a refernce to it from .Net Tab' .... Private Sub PrintGroupMember_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim students As List(Of DirectoryEntry) = MembersOfGroup("Students") For Each user As DirectoryEntry In students Me.TextBox1.Text &= user.Name & vbCrLf Next End Sub Public Function MembersOfGroup(ByVal GroupName As String) As List(Of DirectoryEntry) Dim members As New List(Of DirectoryEntry) Try Using search As New DirectoryEntry("WinNT://./" & GroupName & ",group") For Each member As Object In DirectCast(search.Invoke("Members"), IEnumerable) Dim memberEntry As New DirectoryEntry(member) members.Add(memberEntry) Next End Using Catch ex As Exception MessageBox.Show(ex.ToString) End Try Return members End Function

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  • How do you apply proxy settings per computer instead of per user?

    - by Oliver Salzburg
    So far, I've used a user group policy object utilizing Internet Explorer maintenance to set a proxy for the user in IE. We have now deployed the Enterprise Client (EC) starter group policy to our domain and this policy affects this behavior. The EC group policy uses the policy Make proxy settings per-machine (rather than per-user). This policy describes itself as: This policy is intended to ensure that proxy settings apply uniformly to the same computer and do not vary from user to user. Great! This seems to be an improvement over my previous setup. If you enable this policy, users cannot set user-specific proxy settings. They must use the zones created for all users of the computer. What zones and where do I configure the proxy settings for them? I assumed the policy would simply take the user settings and apply them, but that's not what's happening. Now no proxy server is set at all. So my previous settings obviously no longer have any effect. So far, I've only come up with solutions that involved direct manipulation of the Windows registry. Which is fine, I guess, but the way the proxy is configured for users makes it appear as if there could be a higher level approach.

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  • Do I need to disable access to a publisher database when setting up SQL Server 2000 Transactional Re

    - by Kev
    I have a production database i.e. where there are constant updates and I've configured this to be published to another server using Transactional Replication. When I configure transactional replication I've been doing the following: disable access to the source database backup source DB then restore to subscription server configure replication re-enable DB access to our apps The problem with this approach is scheduling in downtime, having to suspend all the various timed scheduled tasks we run and shutting down access to our various applications that are dependant on this database. Can I just configure transactional replication without disabling access to the publishing database and the subscriber database will correctly catch up? i.e. are all the DML statements queued on the publisher and as soon as the subscriber is ready they are picked off and executed?

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  • WSUS Showing Incorrect Version & Client Update Failure but they can check-in

    - by user132199
    One of the issues we are having is the clients will not download the updates from our WSUS server. They check-in as they are suppose too and find applicable updates but they are unable to actually download and install them. The GPO is set correctly. We decided to install the patch KB2720211to see if it would help eleviate this issue but it did not. In fact, even stranger, if I check the version that is installed on WSUS it reads 3.2.7600.226 but as far as I know it should read 3.2.7600.251. If I check Add/Remove programs to see what Windows Updates have been installed it even lists for WSUS that KB2720211 has been installed at version 3.2.7600.251. To install this update I followed the following directions Question: Has anyone seen this issue where the patch is installed yet not showing the correct version? What can I try to get my clients to update?

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  • Schedled Tasks and Environment Variables

    - by Andrew J. Brehm
    I have a scheduled task, a batch file, that uses an environment variables which is set system-wide. On server 1, the scheduled task runs under a domain account and the environment variable works. The environment variable also exists in my session and when I runas as the service account. On server 2, the scheduled task runs under a different domain account and the environment variable DOES NOT work. However, the environment variable does exist in my session and when I runas as the service account. On both servers the environment variable has been set system-wide by the same script originally. The script runs again every now and then and as far as I can see noone has tempered with the environment variable. The scheduled tasks are set up identically on the two servers (using the same XML file) and the two service accounts are identically configured (as far as I know). What am I doing wrong?

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  • IPv6 in a Small Business

    - by Martyn
    I’ve been tasked to identify a new server and IT equipment for the company I work for (employees <20). I’m looking at getting a SBS 2011 Standard box. My Question is: Apart from ensuring that our router is IPv6 compliant, is there anything else I need to do/investigate to ensure that we won’t have IPv6 related problems in the future? When investigating this I can only find references to DNS Mangers etc. The SBS 2011 box will be used for exchange and remote log in access – it won’t be hosting any websites. Also will VOIP phone systems be affected by IPv6? (We are running a rather old VOIP system, would that need to be updated?

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  • Why does my company's software download get blocked by anti-virus programs when downloading from the company website but not other websites?

    - by Adam Burgess
    My company distributes software via website download off of a URL that is on our company's website. The download is an .EXE. We are getting calls from multiple customers saying the download is being blocked. We can help them download by turning off the virus-scan software, but wondering what is causing the block. Here are the details: We have other downloadable .EXEs that download fine without being blocked from the same company website. Our problem download file downloads fine from other websites (i.e., Dropbox) without being blocked. In summary, this one particular download from our company website is being blocked by various anti-virus programs a high percentage of the time. Any suggestions?

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