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  • Why is nslookup reporting two IP addresses?

    - by Jeff
    I made a DNS change a few hours ago and I just ran the following command with the following output: nslookup mydomain.com ns1.mynameserver.com Server: ns1.mynameserver.com Address: 111.111.111.111 Name: mydomain.com Addresses: 222.222.222.222 333.333.333.333 222.222.222.222 is old IP. 333.333.333.333 is the new IP address. Why are

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  • Linux IPv6: DHCP and /127 prefixes

    - by Jeff Ferland
    I've tried multiple pieces of DHCP client and software in attempting to setup a solution for allocating a /127 prefix to virtual machines so that each maintains its own layer 2 isolation. Because there would only be one host assigned to each network, a /64 is impractical. While the prefix size could reasonably be somewhere in the /64-127

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  • Video card not detected in POST on initial boot.

    - by Jeff M
    I have a minor problem with my desktop computer after cleaning it out for dust. When I first boot up the computer, the video card does not get detected so I can't see anything. In POST, I'm getting the "can't detect video card" beeps. The boot sequence continues normally, just without video. However, if I restart it (using the restart

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  • Why is idle windows VM using so much CPU?

    - by Jeff Shattock
    I have 2 VMs running as guests on a KVM virtualization platform running on Ubuntu 10.04. One VM is an Ubuntu 10.04 system, the other is a Windows 7 system. When both machines are completely logged out, the Linux machine uses 1% CPU, the Windows one 45-50%, according to top. The graphs in virt-manager seem to back this up. Theres

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  • Programatically Determine Exchange Attachment Limit

    - by Jeff Ballard
    Is there any way to query the exchange server to determine the maximum attachment file size? I'd be doing this in ASP.NET/C#. I'd like to be able to validate the file they want to attach is not over the limit before the user attempts to send the file to the server as opposed to having the server send back an exception when it

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  • View Public Key in Domain Key for a Domain

    - by Josh
    Using Jeff's blog post I'm creating domain keys for my account. I wanted to verify the setup using Get or Host command with Bind for Windows but I'm lost one of the commands. I can see view the _domainkey. txt file with this command: host -t txt _domainkey.stackoverflow.com but I'm at a loss at how I'd find the selector

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  • Time issues on the Network -- How to find the Root Cause

    - by Jeff
    A number of application servers started erroring out in my domain. Troubleshooting led me to a missconfiguration of NTP. I fixed the issue, but I don't know how the issue arose in the first place. The only errors I can find are System Error: 1097 Source: useenv System Error: 1058 Source: useenv System Error: 1030

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  • Transport rule - Exchange 2010

    - by Jeff
    I have two transport rules on my exchange server. One is: > Apply rule to messages: From users that are 'outside the organization' > and when any of the recipients in the To or Cc fields is a member of > 'nointernetmail@company.com' Forward the messageto sender's manager > for moderation The

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  • Domain user cannot connect to Exchange

    - by Jeff
    I can login to the local PC and connect to Exchange server - on the same physical network if i log into the domain i cannot connect to the Exchange server. DNS / DHCP all functioning as expected. User has AD account with Domain Admin rights. Quite confusing!

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  • Troubleshooting an overheating CPU

    - by Jeff Fry
    I & my father just recently put together a new PC. Specs below. From the very beginning, on boot it will often complain that the CPU is too hot. If I sit in BIOS and watch the CPU, it'll drop back down from red to blue (<72C), at which point I've tended to just boot into Windows...and haven't had

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  • Rackspace Cloud Sites API (Not Cloud Servers)

    - by Jeff
    I'm looking for a way to pull data from my Rackspace Cloud SITES account. The data I want to pull is bandwidth, diskspace, and compute cycles (all available from control panel). I'd like to set up my own warning system, to be notified if I'm close to my limits on any given month. Does

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  • Blocking IP address with port forwarding

    - by Jeff Storey
    I have a website setup behind a router, so the router has the external facing address and it will forward requests to the webserver inside the network. If there are X number of invalid login attempts, that IP address will be blocked from logging in. The problem is that because the site

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  • Managing service passwords with Puppet

    - by Jeff Ferland
    I'm setting up my Bacula configuration in Puppet. One thing I want to do is ensure that each password field is different. My current thought is to hash the hostname with a secret value that would ensure each file daemon has a unique password and that password can be written to both the

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