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  • Failure to create keytab file using msktutil on Centos to W2K8

    - by user49321
    I'm trying to setup a centos 5.5 squid server to authenticate against a windows 2008 DC. I have followed the tutorial: http://serverfault.com/questions/66556/getting-squid-to-authenticate-with-kerberos-and-windows-2008-2003-7-xp However I have run into an issue. When I run the command: (Obviously changed for my enviroment) # msktutil -c -b "CN=COMPUTERS" -s HTTP/centos.dom.local -h centos.dom.local -k /etc/HTTP.keytab --computer-name centos-http --upn HTTP/centos.dom.local --server server.dom.local --verbose --enctypes 28 I get the following error (The whole message is too long to post here): Error: Unable to set machine password for centos: (3) Authentication error Error: set_password failed kinit works fine and the computer is added to the DC under COMPUTERS and SRV records created except no keytab is created.

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  • Troubleshooting Nonpaged and Paged Pool Errors in Windows

    Ben Lye uncovered a memory leak in the nonpaged pool which was crashing his servers with disquieting regularity. Luckily it was relatively easy to troubleshoot, and he's sharing the tools and techniques he used to get his servers back on track in double-quick time....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Forwarding RDP via a Linux machine using iptables: Not working

    - by Nimmy Lebby
    I have a Linux machine and a Windows machine behind a router that implements NAT (the diagram might be overkill, but was fun to make): I am forwarding RDP port (3389) on the router to the Linux machine because I want to audit RDP connections. For the Linux machine to forward RDP traffic, I wrote these iptables rules: iptables -t nat -A PREROUTING -p tcp --dport 3389 -j DNAT --to-destination win-box iptables -A FORWARD -p tcp --dport 3389 -j ACCEPT The port is listening on the Windows machine: C:\Users\nimmy>netstat -a Active Connections Proto Local Address Foreign Address State (..snip..) TCP 0.0.0.0:3389 WIN-BOX:0 LISTENING (..snip..) And the port is forwarding on the Linux machine: # tcpdump port 3389 tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes 01:33:11.451663 IP shieldsup.grc.com.56387 > linux-box.myapt.lan.ms-wbt-server: Flags [S], seq 94663035, win 8192, options [mss 1460], length 0 01:33:11.451846 IP shieldsup.grc.com.56387 > win-box.myapt.lan.ms-wbt-server: Flags [S], seq 94663035, win 8192, options [mss 1460], length 0 However, I am not getting any successful RDP connections from the outside. The port is not even responding: C:\Users\outside-nimmy>telnet example.com 3389 Connecting To example.com...Could not open connection to the host, on port 3389: Connect failed Any ideas? Update Per @Zhiqiang Ma, I looked at nf_conntrack proc file during a connection attempt and this is what I see (192.168.3.1 = linux-box, 192.168.3.5 = win-box): # cat /proc/net/nf_conntrack | grep 3389 ipv4 2 tcp 6 118 SYN_SENT src=4.79.142.206 dst=192.168.3.1 sport=43142 dport=3389 packets=6 bytes=264 [UNREPLIED] src=192.168.3.5 dst=4.79.142.206 sport=3389 dport=43142 packets=0 bytes=0 mark=0 secmark=0 zone=0 use=2 2nd update Got tcpdump on the router and it seems that win-box is sending an RST packet: 21:20:24.767792 IP shieldsup.grc.com.45349 > linux-box.myapt.lan.3389: S 19088743:19088743(0) win 8192 <mss 1460> 21:20:24.768038 IP shieldsup.grc.com.45349 > win-box.myapt.lan.3389: S 19088743:19088743(0) win 8192 <mss 1460> 21:20:24.770674 IP win-box.myapt.lan.3389 > shieldsup.grc.com.45349: R 721745706:721745706(0) ack 755785049 win 0 Why would Windows be doing this?

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  • Could my 64-bit server be somehow identifying itself as a 32-bit server?

    - by Deane
    Has anyone ever heard of a 64-bit OS identifying itself as a 32-bit OS? We have a Windows Server 2008 R2 x64 development server. We've been trying to activate it with a product key from MSDN, but it keeps telling us the the key is invalid. I've opened a ticket with MSDN for this. Then something odd happened -- I tried to install a 64-bit version of SQL Server 2005. After it extracted, we got this message: This version of hotfix.exe is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program... Now, we're pretty sure this is a 64-bit OS. Computer Properties says: System Type: 64-bit Operating System Also, we have both a "Program Files" and a "Program Files (x64)" directory. I don't know how the product key activator or the SQL install program attempts to divine the type of OS, but could it be...wrong?

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  • Links won't open in Outlook

    - by Scott Mitchell
    About a week ago Chrome (my default browser) stopped working and I ended up reinstalling. After that, however, links in Outlook 2007, when clicked, no longer open. Instead, I get a warning that reads: General failure. The URL was: URL. Application not found. I presume that there is some MIME or file type association that needs to be configured at the OS level, but I've not had any luck so far. My operating system is Windows 7. Any ideas? EDIT #1 Wayne Johnston suggested I set Chrome as my default browser, but when I go to the Set Default Programs screen in Windows 7 (via Control Panel) I do not see Chrome in the list of programs. How do I get it to show up there?

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  • XenServer VM's lose network settings

    - by Ash
    We deploy virtual machines using Citrix XenServer 6.0 for our clients. Two seperate clients experience the same issue: when a Server 2008 virtual machine is restarted, the static IP addresses (network address, subnet, gateway, primary DNS) don't appear to apply correctly as the IP's cannot be pinged, network services cannot be accessed etc. The issue is resolved by manually switching the network adapters to DHCP, then re-setting them to the original static IP's. While not a major issue, it's a pain when restarting servers due to Windows Updates, plus iSCSI drives need to be manually connected to Windows again via iSCSI Initiator. We have tried removed the network adapters from the virtual machine under XenCentre but without luck. Anyone experienced similar issues?

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  • Metro Apps on Win 8 aren't working with static ip behind auth proxy

    - by Kamal
    In Windows 8 Professional, Metro Apps and Windows Update do not work on static IP settings behind authenticated proxy server. They work on DHCP on the same proxy settings. (We have DHCP for wifi and static IP for LAN, both using the same proxy server). IE, Chrome and other desktop apps work nicely on both. Metro apps worked on an auth proxy (DHCP only), when I changed their proxy settings from the 'edit group policy' option. (StartSettingsEdit Group PolicyComputer ConfigurationAdministrative TemplatesNetwork IsolationInternet Proxy for Apps) Can this be fixed?

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  • Win7 Prof. Computer won't wake on lan via Magic Packet from outside network

    - by Michael
    Hi all. I just purchased a new computer running Windows 7 Professional x64. I'd like to save power by having it sleep after an hour, but I would also like to be able to Remote Desktop into it at my leisure. I set up a static IP and have port forwarding set up on the router. If the computer is awake, the RDP connection works just fine. I downloaded and installed Wake-On-Lan thanks to this article If I put my new computer to sleep and send the magic packet from my old computer inside of my home network it wakes up. If I do the same thing, however, from my work computer outside the network it does not. I figured the Firewall was blocking the incoming traffic, but nothing in the Windows Firewall logs points to this happening. I'm wondering if anyone has any suggestions or any tests I can run through in order to narrow down what the problem might be. Thanks in advance for any help you might be able to offer.

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  • Differences between Remote Desktop and Terminal services

    - by Uwe
    What is the difference between Remote Desktop and Terminal services? We run a windows 2008 R2 server. There are several administrators who need to access this server. Windows 2008 allows only two concurrent sessions with different users. So I thought of installing terminal services. But I wonder what will happen to the server if I do so? What will be installed additionally? Will there be more features, ports, issues with the server?

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  • homegroup administrator user no longer exists

    - by Beninja
    I had a PC with windows 7 that was the homegroup administrator for my network. I recently upgraded to windows 8 I went to homegroup in control panel and saw that the original homegroup was never removed. It says to talk to the administrator on and obtain the password to join the homegroup. I need to create a new homegroup but I cant unless I somehow remove the old one. And I cant do that because the user that had rights to the old one no longer exists. Please help!! Ben

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  • Is there an application I can run that will tell me how fast my computer is running?

    - by Robert Hume
    At work I log into a virtual Windows machine. I'm told it runs as fast as a PC, but I'm skeptical. Is there an application I can run on the machine that will tell me how faster the machine is actually running? It would be nice if it ran on Windows and on Mac. Updating with more details -- I was asked "why does it matter" -- here's why: It matters because I'm a programmer and I need as much speed (CPU and memory) as possible to do my work. IMO, the virtual machine is noticeably slower than a basic $800 PC would be, but I need a way a proving it. Websites like Bandwidthtest.com can show me my internet speed, so I'm wondering if there's an app that can test my computer's speed.

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  • Need help diagnosing cause of BSOD

    - by n00neimp0rtant
    I've got a Windows 7 PC here that was getting very frequent BSODs. The error codes were variant (IRQL_NOT_LESS_OR_EQUAL, PAGE_FAULT_IN_NONPAGED_AREA, ATTEMPTED_WRITE_TO_READONLY_MEMORY), and it was impossible to use the computer for longer than an hour without getting one. I backed it all up and reinstalled Windows completely, thinking that it was a corrupt driver issue. Unfortunately, I'm still getting the BSODs with the same error messages on this fresh installation. This tells me that it must be some faulty piece of hardware, but I'm not sure what it would be. I ran Memtest+ on the machine, but did not get any errors after 2 passes. I also ran a few built-in recovery mode scans from the HP recovery partition. I need some ideas on how to test the rest of the hardware to solve this issue.

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  • How important is patch management?

    - by James Hill
    Problem I'm trying to sell the idea of organizational patch/update management and antivirus management to my superiors. Thus far, my proposition has been met with two responses: We haven't had any issues yet (I would add that we know of) We just don't think it's that big of a risk. Question Are there any resources available that can help me sell this idea? I've been told that 55-85% of all security related issues can be resolved by proper anti-virus and patch/update management but the individual that told me couldn't substantiate the claim. Can it be substantiated? Additional Information 1/5 of our computers (the ones on the building) have Windows update turned on by default and anti-virus installed. 4/5 of our computers are outside corporate and the users currently have full control over anti-virus and Windows updates (I know this is an issue, one step at a time).

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  • How to hide a partition?

    - by snark
    I bought a small 32 GB SSD to store the operating system (Windows 7) and my applications. I'll copy the existing boot partition (30 GB) from my harddisk (WD Velociraptor) to the SSD using GParted but I'd like to keep the existing partition intact (keeping all data on it) so I can go back to it if there is a problem with the SSD. How can I hide the partition so it is not visible anymore to Windows? What should I change with GParted? Second question: how can I keep the harddisk partition synced with the SSD so I have a backup? I'm looking for a near real-time solution (not something like Acronis Drive Image).

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