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  • How to handle server failure in an n-tier architecture?

    - by andy
    Imagine I have an n-tier architecture in an auto-scaled cloud environment with say: a load balancer in a failover pair reverse proxy tier web app tier db tier Each tier needs to connect to the instances in the tier below. What are the standard ways of connecting tiers to make them resilient to failure of nodes in each tier? i.e. how does

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  • VPN Error 691 but server says authenticated on server

    - by Andy
    Hello all, I have a problem with a vpn connection on Windows XP SP3 that appears to be related to an account (maybe privilleges or an option that I have missed). When connecting using my account, which is a domain administrator account it will connect to through the vpn fine. However, using an account created for another person they

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  • How can I suppress /etc/issue without losing error messages?

    - by Andy
    Is it possible to tell the ssh client to not print the connects of /etc/issue to stdout when connecting to a remote host, but to print out any other diagnostic (e.g. error) messages? Either using ssh -q or having LogLevel quiet in ~/.ssh/config suppresses the /etc/issue printing, but also turn off error messages. I've tried touching

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  • Mobile Intel® GMA 4500MHD boost

    - by Andy Smith
    My machine has a Mobile Intel® GMA 4500MHD integrated graphics chipset. The machine is currently running 64 bit windows 7 premium with 3GB of ram (1x1gb and 1x2gb). I note that the Mobile Intel® GMA 4500MHD shares the physical memory to process the graphics. now, the total available graphics memory can be up to 1,340 MB with a

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  • Full Disk Encryption for Mac (Not PGP)

    - by Andy
    I purchased PGP Whole Disk Encryption for my Macbook Pro, and it's exactly what I need. After the Symantec acquisition, PGP no longer sells single licenses of the software so I can't purchase a second copy for my iMac. Since I can no longer buy PGP Whole Disk Encryption, can anyone suggest an alternative? I'm currently using

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  • Bridging Network Devices with Multiple IPs

    - by Andy
    I have a small server with a single NIC that I am trying to get a bridge functioning on so that I can run KVM. On this NIC I have a couple IPs statically assigned to it: eth0 = 192.168.1.1 eth0:1 = 192.168.1.2 eth0:2 = 192.168.1.3 eth0:3 -> Assign the bridge to this I am attempting to set up a bridge using the following

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  • Exchange enrypted messages with a single recipient

    - by Andy
    I need to exchange encrypted messages with another party. These would be in the form of email like communication (not instant chat). The solution needs to be portable (USB stick). I've tried "Portable Thunderbird/Enigmail/Gnupg/Hotmail account" but it's just impossible to setup portable, countless meaningless error messages.

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  • Sun 280R architecture

    - by Andy
    How do I find out which architecture my Sun 280R is based on (eg . 501-6485 or 501-6690 etc) The command arch returns "sun4". Im running Solaris 10 Thanks

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  • PERC 5/i Enable alarm on disks failures

    - by Andy M
    I'm trying to enable one the alarm of my server's raid controller PERC 5/i. Using this documentation, under the chapter Audible Alarm Warnings, it's explained that enabling an audible alarm is allowed in order to quickly spot failures on my hard disks. My trouble is that when entering the disk controller configuration

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  • monitoring TCP/IP performance on Solaris

    - by Andy Faibishenko
    I am trying to tune a high message traffic system running on Solaris. The architecture is a large number (600) of clients which connect via TCP to a big Solaris server and then send/receive relatively small messages (.5 to 1K payload) at high rates. The goal is to minimize the latency of each message processed. I

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  • Monitoring bespoke software with Zenoss

    - by Andy S
    We've got a lot of back-end applications that we need to monitor the performance of (metrics such as orders waiting to be processed, time since last run, etc). Currently, this is done by an in-house watchdog application that fires out emails whenever a threshold is exceeded, but there's no way to acknowledge an

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  • CREDSSP 500 errors

    - by Andy Milsark
    Hello all, We are experience a 500 http error when trying to run remote powershell on a win 2008 R2 server. I have run enable-wsmancredssp for both client and server roles on this machine. I have also run "winrm quickconfig". Also the allowfreshcredentials delegation group policy is setup correctly as well.

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  • How can you test communication on a COM/Serial port?

    - by Andy
    We have a OHAUAS Weighting scales with a COM port. if we connect this to a PC we should be able to get the weight on the computer by sending a command to it. Is there a way to test this? i tried the command line echo "LP" com1 but this does nothing. A small C# application that listens to this port seems to be

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  • Step by step USB Wi-Fi driver install for mint 15

    - by Andy
    I'm running Linux mint 15 32 bit on a Dell inspiron 2200. I have given up trying to get the Broadcom BCM4318 built in wireless working, so bought a Dynamode Nano 802.11n wireless USB adapter. It came with an install disc. I have no idea how to install it. Could someone please point me in the right direction for

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  • Chrome not selecting correct language for Help tab

    - by Andy
    When I click Help in Chrome, a new tab appears with the Google help links etc as expected, but I have a message saying: "This Help Centre is not currently available in your language...", etc. The drop down box at the bottom is not selected correctly for en-GB (my location). Instead it is set at the first

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