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  • Which is faster for read access on EC2; local drive or EBS?

    - by Phillip Oldham
    Which is faster for read access on an EC2 instance; the "local" drive or an attached EBS volume? I have some data that needs to be persisted so have placed this on an EBS volume. I'm using OpenSolaris, so this volume has been attached as a ZFS pool. However, I have a large chunk of EC2 disk space that's going to go unused, so I'm considering re-purposing this as a ZFS cache volume but I don't want to do this if the disk access is going to be slower than that of the EBS volume as it would potentially have a detrimental effect.

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  • Which is faster for read access on EC2; local drive or EBS?

    - by Phillip Oldham
    Which is faster for read access on an EC2 instance; the "local" drive or an attached EBS volume? I have some data that needs to be persisted so have placed this on an EBS volume. I'm using OpenSolaris, so this volume has been attached as a ZFS pool. However, I have a large chunk of EC2 disk space that's going to go unused, so I'm considering re-purposing this as a ZFS cache volume but I don't want to do this if the disk access is going to be slower than that of the EBS volume as it would potentially have a detrimental effect.

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  • Access points fighting for dominance?

    - by Phillip Oldham
    We have a small office with a large number of wireless devices (a mixture of desktop machines, laptops, and wifi-enabled phones) all working from a single Apple Airport Extreme which extends our wired network. I've added another Airport Extreme for resiliency, since we've been seeing a decrease in performance and (as far as I understand) access points can only handle a small number of clients. I set the new AP to extend the current network so that the clients weren't constantly switching between different wireless networks, however as soon as this AP was configured all the wireless devices started seeing network trouble, flicking on and off. I'm assuming that this is because both APs are reasonably strong, and the client can't decide which to use. What is the best route to follow to resolve this? What I'm aiming for is wireless resiliency; preferably having two APs share the network load, or if this isn't an option then having a primary AP with a "fail-over", should the primary go down for any reason.

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  • Auto re-attach EBS volume on start-up?

    - by Phillip Oldham
    I'm setting up a database server on EC2, and I need to ensure that an EBS volume is automatically attached and is available before the database service starts up. I'm using SMF so I can test whether a particular filesystem is available before starting the db service, so there's no problem from that perspective, however I'm not quite sure how to tell the server to auto-attach the EBS volume during/after boot. What would be the best strategy for this?

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  • What options do I need to pass to compile something to /usr/lib64?

    - by Phillip Oldham
    I'm trying to install a newer version of libevent than is on my machine, so I can install memcached. However, the install for memcached complains that the libevent library isn't in /usr/lib64 and that it isn't 64bit. What options do I need to pass to ./configure to get it to compile as 64bit and/or into the /usr/lib64 directory? This is what I have at the moment: CHOST="x86_64-pc-linux-gnu" CFLAGS="-O2" CXX=gcc CXXFLAGS="-O2" \ CC=gcc CXX=gcc \ ./configure --prefix=/usr Thanks!

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  • Is it secure to store the cert/key on a private AMI?

    - by Phillip Oldham
    Are there any major security implications to bundling a private AMI which contains the private key/certificate & environment variables? For resiliency I'm creating an EC2 image which should be able to boot and configure itself without any intervention. After boot it will attempt to: Attach & mount specific EBS volume(s) Associate a specific Elastic IP Start issuing backups of the EBS volume(s) to S3 However, to do this it will need the private key/pem files and will need certain environment variables to be available on start-up. Since this is a private AMI I'm wondering if it will be "safe" to store these variables/files directly in the image so that I don't need to specify any user-data information and can therefore start a new instance remotely (from my iPhone, if needed) should the instance be terminated for any reason.

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  • word 2010 Macro to name and Save file when opened

    - by Phillip Clark
    I have a word document template and will be using a hyper link in Excel to access the word file. The issue I need to resolve is making sure once it is opened a message field box is "popped" up asking the user to create a new file name ... (in this case the current date) for each time the file is opened. In the message pop when finished entering in file name they click yes and then the save screen comes up with the path/file type (macro enabled document) and the file name they have already entered in the pop up.. All they should have to do from the save screen is click ok and it saves the file to a certain path/folder on the C drive of the computer. Once they finish typing in their notes they click a active x button to save and close and they are finished. If anyone can help with this it would be fantastic.

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  • App to slice'n'dice video, specifically remove chunks, on a Mac?

    - by Phillip Oldham
    I have a couple of collections of DVD Box-Sets I've ripped to my mac. Now I'd like to sweeten the viewing experience by removing the title sequences and credits so that viewing doesn't mean I have to keep reaching for the remote to skip 30 seconds of annoying music (think watching multiple episodes of Family Guy). If I can find an app that will let me do this reasonably quickly manually that would be great, but it would be perfect if I could dump a load of commands into a file and have everything trimmed while the mac is "inactive". I'm thinking that if I can specify chunks of time to remove from the original file that would be perfect. I had a quick look at importing into iMovie to do it manually and gave up at the "Processing Thumbnails" stage as it said it would be a couple of hours to produce them for a 45min mp4 file, which I can understand at 25fps but I'm not willing to wait, especially when I've got over a week's worth of files. Any suggestions?

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  • How can I password-protect a Mac shared folder on a Windows workgroup?

    - by Phillip Oldham
    We have a Mac-mini running 10.5.8 which already acts as a fileserver for our simple Windows (mixed XP/Vista) workgroup. The Mac-mini is on the same workgroup and the files are shared via SMB, FTP, and AFP. Basic file-sharing is working, and has been for some time. We'd now like to add an additional directory/share which can be secured by a password so that only a small number on the network have access. Is this possible? I've already tried creating the additional folder on the mac system, adding it to the shared folders, and limiting it to a specific "shared user", however it's not possible to log-in from an XP machine. Adding a sub-directory to the currently working share and giving limiting it's access to the shared user doesn't work either.

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  • How can I password-protect a Mac shared folder on a Windows workgroup?

    - by Phillip Oldham
    We have a Mac-mini running 10.5.8 which already acts as a fileserver for our simple Windows (mixed XP/Vista) workgroup. The Mac-mini is on the same workgroup and the files are shared via SMB, FTP, and AFP. Basic file-sharing is working, and has been for some time. We'd now like to add an additional directory/share which can be secured by a password so that only a small number on the network have access. Is this possible? I've already tried creating the additional folder on the mac system, adding it to the shared folders, and limiting it to a specific "shared user", however it's not possible to log-in from an XP machine. Adding a sub-directory to the currently working share and giving limiting it's access to the shared user doesn't work either.

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  • SMF restarting service whenever there's output?

    - by Phillip Oldham
    I'm trying to add a custom service to SMF's configuration, which seems successful in that the service starts and there is a log file, but therein lies the problem; the service, on start-up, prints some logging messages to the stderr. It seems that SMF is seeing those messages and, believing them to be errors, restarts the service, giving up after a number of tries and leaving the service off. Here's part of the log output: [ Mar 30 14:59:54 Enabled. ] [ Mar 30 14:59:54 Executing start method ("java server.CustomServer"). ] Starting server... [ Mar 30 15:00:04 Method or service exit timed out. Killing contract 107. ] Running the server directly on the commandline is fine, and AFACS there are no errors being encountered during startup, other than the output. What would be the best way to manage this service with SMF? The logging is needed for diagnosing problems, and would be problematic to disable. Is it possible to configure this service to only restart if the service exists?

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  • Use an iPhone as a bluetooth headset for a mac?

    - by Phillip Oldham
    Is there any way, such as an iPhone app, that will let me connect my iPhone to my iMac via bluetooth, so that the iMac pushes all audio through the iPhone? Specifically, what I'm looking to do is be able to watch movies on my iMac with the sound being played through my iPhone & in turn the ear buds.

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  • Active Directoy GPO

    - by Phillip R.
    I am looking into some weird issues with active directory and group policy. This domain has been upgraded from windows NT and has a few different administrators over the years. I am looking through the Default Domain group policy and Default Domain Controller group policy. In the security areas and I will use the log on locally area as an example, it shows SIDes that begin with asterisks and are quite long they look sort of like the following *S-1-5-21-787626... Normally, when I see something like this I would think that the User account was no longer there and this was never cleaned up. Am I wrong in my assumption? Thanks in advance

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  • Oracle Linux Friday Spotlight - October 18, 2013

    - by Chris Kawalek
    Happy Friday! Echoing our popular series over on the Oracle Virtualization blog, we'll now be spotlighting something interesting about Oracle Linux for you every Friday. This week, we have a really cool video done by Intel that features Oracle's Phillip Goerl discussing the Oracle Linux development model and how it relates to Intel Xeon. Click below to jump to YouTube and play the video: See you next week! -Chris 

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  • C# Windows Mobile 6.5 and TCP connections

    - by Phillip
    Hello, I am developing an application which makes a TCP connection out to our company server to pull down data and provide real-time data updates when the information changes. I am using the .NET Compact Framework for the development and the .NET Framework 3.5 (soon to update to 4.0) for the server-side TCP connection. I want to leave the connection open after the initial data is sent to the device from the server in order to keep the server in contact with the device should data updates need to be sent to the device. We already considered doing a WCF or connect/disconnect type of connection but we believe the overhead on the server for creating the session, transmitting and session cleanup would be unacceptable. (each device would be connecting every 60-90 seconds.) So, leaving the connection open is the best option. What I need to know is, when I leave the TCP connection open, do I need to manually transmit a heartbeat (and if so how do I do that with the .NET Compact Framework) or will the framework/stack do that for me? We have code that allows up to reconnect if the device gets disconnected (from network switching or a voice call) so that is handled. Thanks,

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  • Copy .exe to Explorer.exe!

    - by Phillip
    What would happen if an ordinary .exe file is copied to explorer.exe? Will it be automatically running as long as explorer.exe is running? This seems like a major security whole...is it even possible? Does anti-virus protect against that sort of thing?

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  • How do I get Java to use the serial port in Linux?

    - by Phillip Gibb
    We make use of a java application that manages a pinpad via the serial port. This works perfectly on windows with the Sun Comm.jar, the supplied dll and the properties file. Now we are attempting to use this solution on Linux (actually it does run on various other flavours of linux out in the field) - with Ubuntu server mode. After much attempts - blood, sweat and almost tears we have this scenario: Java version 1.4.2_17 Linux - Ubuntu Comm libs - Comm3 supplied by sun with the default driver specified An external comm test shows the comm ports: /dev/ttyS0 and /dev/ttyS1 But the java application says unable to open port /dev/ttyS1 (using the RXRT files produces invalid port errors) Has anyone been able to use java 1.4.2 on linux for serial port communication and found a solution that I could apply in my scenario? greatly appreciated Phill

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  • How to add handler in dynamic datatemplate

    - by Phillip Ngan
    I am successfully declaring a data template in a code behind as follows: private static DataTemplate CreateTemplate(string sortMemberPath, HorizontalAlignment horzAlignment) { const string xamlFormat = "<DataTemplate xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" >" + "<StackPanel > " + " <TextBlock Margin=\"2,0\" VerticalAlignment=\"Center\" HorizontalAlignment=\"_HALIGNMENT_\" " + " Text=\"hello there\"> " + " </TextBlock> " + "</StackPanel>" + "</DataTemplate>"; return (DataTemplate) XamlReader.Load(xamlReturned); } But now I want to add a size changed handler by changing the line: + "<StackPanel > " to + "<StackPanel SizeChanged="SizeChangedHandler" > " I have the method "SizeChangedHandler" declared in the code behind. This results in a xaml parse error when the control attempts to load at runtime. I suspect that it can't find the handler "SizeChangedHandler". How can I specify this handler so that the xaml parser is happy.

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