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• Alignment requirements: converting basic disk to dynamic disk in order to set up software RAID?

  - by 0xC0000022L

  On Windows 7 x64 Professional I am struggling to convert a basic disk to a dynamic one. Under Disk Management in the MMC the conversion is supposed to be initiated automatically, but it doesn't. My guess: because of using third-party partitioning tools there isn't enough space in front and after the partitions (system-reserved/boot + system volume) to store the required meta-data. When demoting a dynamic disk to a basic disk manually, I noticed that some space seems to be required before and after the partitions. What are the exact alignment requirements that allow the on-board tools in Windows to do the conversion?

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• What compatibility trade-offs do we need to make in order to use a hardened SSL config for Nginx?

  - by nathan.f77

  I found some hardened SSL settings in github.com/ioerror/duraconf. Here is the header from the config: This is an example of a high security, somewhat compatible SSLv3 and TLSv1 enabled HTTPS proxy server. The server only allows modes that provide perfect forward secrecy; no other modes are offered. Anonymous cipher modes are disabled. This configuation does not include the HSTS header to ensure that users do not accidentally connect to an insecure HTTP service after their first visit. It only supports strong ciphers in PFS mode: ssl_prefer_server_ciphers on; ssl_session_cache shared:SSL:10m; ssl_session_timeout 10m; # Only strong ciphers in PFS mode ssl_ciphers ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA; ssl_protocols SSLv3 TLSv1; If we were to use these settings on our website, what does "somewhat compatible" mean? For example, would IE6 still be able to connect?

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• What "pieces" are needed in order to set up a cluster of physical servers?

  - by Chris Dutrow

  Background: Currently, we use Rackspace cloud servers. We have no intention to stop using them, but would like to look into setting up a cluster of physical servers (probably desktop computers in the $400 range with 8gb memory each) to offset some of our load and work as a secondary, more powerful, less reliable system. To put things in perspective, we can buy comparable desktop computers for the same price as we pay in one month to rent them on Rackspace Cloud. I understand that this is generally a dumb idea. However, in this particular instance, the server cluster is needed for its computation power. It is not mission-critical, it does not host a consumer-facing website, and if it goes down for a day or two, its not really a problem. Currently, we have access to business class verizon fios. If I understand correctly, we can get at least 25 dedicated IP addresses with this service, this should be enough. Requirements: Each server runs Linux Centos 6.3 Some of the servers run Python and execute processes from a task queue (Redis or RabbitMQ) Some of the servers are capable of serving static files and Python driven REST APIs Some of the servers host a Cassandra database cluster One or more of the servers are a Redis database servers One or more of the servers are PostgreSQL servers Questions: What kind of router or switch is needed? We would like the computers to be able to communicate effectively with each other via internal IP addresses. This is especially important for communicating with servers hosting Redis that need to be able to respond to requests very quickly. Are there special switches or routers that need to be used to connect the servers together? Are Desktop computers ok for this? We have found that we are mostly RAM-bottle necked, I understand that some servers have highly superior CPUs, but I'm not sure we need CPU power as much as we need RAM, which is cheap in Desktop computers. Will we have problems with the WIFI cards in the desktops or any other unexpected hardware limitation? What tools should be used to "image" the servers. For example, when we get an installation right for a Redis server or Cassandra node, are there tools that come with Linux Centos 6.3 to image the server to a USB drive or something like that? Or do we need to use some other software for this? What other things are we missing that we should be concerned about? Thanks so much!

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• how do i set index priorty on nginx in order to load index.html before wordpress' .php files

  - by orbitalshocK

  hello there, gents. I'm an absolute beginner in linux, the CLI, as well as nginx and wordpress. i'm trying to make a 'coming soon' landing page that will take priority over the main wordpress installation i just set up. I want to make .html load before php, or get information on the Best Practices approach to this. I just now realized i could easily use the wordpress' generic "under construction" page and modify it. I'm sure it has one; i'm sure there's a plugin. Stats linode 1024 ubuntu 12.04 nginx 1.6.1 single wordpress installation (for now) set up using easyengine, but going to restart and configure nginx for my linode specifically probably. I managed to find one piece of instruction on how to change the httpd file to specify priority for apache 2, but did not find the same documentation for nginx. If it's not on the first page of google, then serverfault needs the question answered! Viva la Server Fault first page results!

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• Mac OS X software always order files alphabetically rather than by type.

  - by george

  I have noticed many Mac applications sort the files alphabetically rather than by type. A good example would be Coda by panic.com. The files in the file menu are organized alphabetically. I requested for them to add the feature to organize files by type, and they've said that it's a Finder thing. So I looked at other applications to see if they were organizing by type. I noticed Dreamweaver CS4 had this same problem and now including Dreamweaver CS5. There has to be something in the Mac that does this and that I can modify. I played with Spotlight and it now displays its files by type (thinking that's what I can do) but it didn't take effect in other applications. What library are these applications using to display a file menu for their files?

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• Mac OS X software always order files alphabetically rather than by type.

  - by george

  I have noticed many Mac applications sort the files alphabetically rather than by type. A good example would be Coda by panic.com. The files in the file menu are organized alphabetically. I requested for them to add the feature to organize files by type, and they've said that it's a Finder thing. So I looked at other applications to see if they were organizing by type. I noticed Dreamweaver CS4 had this same problem and now including Dreamweaver CS5. There has to be something in the Mac that does this and that I can modify. I played with Spotlight and it now displays its files by type (thinking that's what I can do) but it didn't take effect in other applications. What library are these applications using to display a file menu for their files? here is an example-- file menu layout of coda by panic.com. (i couldnt post another link because it wouldnt let me). can you see how everything is organised alphabetically rather than by folder? i just want the file menu to show all folders first then all the files. 1) http://www.iaddesign.com/coda.png there must be a way to modify mac to let me to do this.

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• Is there a way to bridge two outgoing TCP connections in order to bypass firewalls and NAT?

  - by TK Kocheran

  We're all familiar with the problem of port-forwarding and NAT: if you want to expose something to accepting an incoming connection, you need to configure port-forwarding on the router or conjure up some other black magickery to "punch holes" in the firewall using UDP or something. I'm fairly new to the whole "hole-punching" concept so could someone explain how it works? Essentially, I'd like to understand how hole-punching would work and the theory behind it, as well as if two TCP connections could be bridged via a third party. Since there's no issue with outgoing TCP connections since it's handled with NAT, could a third party bridge the connections so that the two parties are still connected but without the bandwidth cost of traffic going through the third party?

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• Which cloud service is best?? can you order it??

  - by mathew

  Hi there are many cloud services out there but famous are mentioned below...can any one tell me which one is first,second,third etc....in terms of money,performance and reliability.. 1) Amazon 2) Rackspace 3) Softlayer 4) Vps.net I dont know other actually I am only looking for Linux services .... Mathew

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• Startup script on Ubuntu 12.04 not getting executed. Dependencies / load order.

  - by user861181

  I want to create a simple startup script on Ubuntu 12.04: myscript.sh #!/bin/sh sudo /etc/init.d/nginx start cd ~/app/current god -c config/resque.god sudo /etc/init.d/redis-server start echo "SCRIPT RUN" I have it at /etc/init.d/myscript.sh When I do sudo chkconfig --level 2345 myscript.sh I get myscript.sh 2345 When I do sudo chkconfig --add myscript.sh I get insserv: warning: script 'K01myscript.sh' missing LSB tags and overrides insserv: warning: script 'myscript.sh' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dbus' missing LSB tags and overrides .... myscript.sh 0:off 1:off 2:on 3:on 4:on 5:on 6:off ** EDIT:: I checked the boot.log and it turns out that the script is run, but the problem is that god is not loaded yet when the script is executed. Apparently I want to load this script as the very last thing at startup (or somehow check if god is loaded and then start the script).

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• Check IMAP via PHP for mesages in order to interact with them via PHP?

  - by Roger

  I use Google to administer my e-mails and I run Nginx + PHP. If I want to check incoming mail to interact with each message subject (to trigger an action), as far as I know, I have only two options: 1) access Google via IMAP PHP / cron job or 2) forward the messages to my server where I can have a subdomain set to pipe the messages to a PHP script. Frankly, I'd preffer the first option because I have already all the IMAP functions tested and done. And if the second solution is really the best, I'd preffer to use Postfix. However, id like some light grom somebody who has already browsed this unknown waters. Thank you.

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• what i should do in order to build curl without error?

  - by hugemeow

  failed when i run ./buildconf the error information is as follows: [mirror@home curl]$ ls acinclude.m4 CMakeLists.txt GIT-INFO MacOSX-Framework packages TODO-RELEASE Android.mk configure.ac include Makefile.am perl vc6curl.dsw buildconf COPYING install-sh Makefile.dist README winbuild buildconf.bat CTestConfig.cmake lib Makefile.msvc.names RELEASE-NOTES CHANGES curl-config.in libcurl.pc.in maketgz sample.emacs CHANGES.0 curl-style.el log2changes.pl missing src CMake docs m4 mkinstalldirs tests [mirror@home curl]$ ./config [mirror@home curl]$ ./buildconf buildconf: autoconf version 2.63 (ok) buildconf: autom4te version 2.59 (ERROR: does not match autoconf version) [mirror@home curl]$ echo $? 1

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• Why does Gnome use the order-by triangle the opposite way as Windows does?

  - by StackedCrooked

  I included this screenshot for clarity: The triangle is (according to my logic) wrongly rotated. Is this a bug, or an intentional choice?

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• How can I change the binding order of network adapters in Windows 7?

  - by Chris Farmer

  The end goal here is that I am trying to install an Oracle 10g server on my Windows 7 x64 dev box. I use DHCP, and the Oracle installer is throwing up this warning: Checking Network Configuration requirements ... Check complete. The overall result of this check is: Failed <<<< Problem: The install has detected that the primary IP address of the system is DHCP-assigned. Recommendation: Oracle supports installations on systems with DHCP-assigned IP addresses; However, before you can do this, you must configure the Microsoft LoopBack Adapter to be the primary network adapter on the system. See the Installation Guide for more details on installing the software on systems configured with DHCP. I have installed the loopback adapter, but I am not sure how to make it the primary network adapter. I see this Microsoft KB article on the subject but it's Windows XP-oriented, and I can't seem to find a comparable one for Windows 7. Some of the options it talks about don't seem to be present in the views of the adapters that I see. So, how can I make the loopback adapter become the primary adapter?

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• Do I always need two NIC's in order to install VPN on my server?

  - by Lars

  I am watching some video guide on how to setup a VPN Server and he says you need two network cards (one internal, one external). I only have one right now, is there any way around this?

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• How to goup EC2 instances in order to delegate administrations to differents teams?

  - by Olivier

  Is it possible (using ARN) to make severals groups of instances. Then using differents policy to grant some access to a group of instance only and not the other instances? For example : { "Statement": [ { "Action": "ec2:*", "Effect": "Allow", "Resource": "*" }, { "Effect": "Allow", "Action": "elasticloadbalancing:*", "Resource": "*" }, { "Effect": "Allow", "Action": "cloudwatch:*", "Resource": "*" }, { "Effect": "Allow", "Action": "autoscaling:*", "Resource": "*" } ] } Instead of "*" could we use a group or something like that? like a specific subnet? a Tag? or whatever... Thanks for your help

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• mac osx software always order files alphabetically rather than by type.

  - by george

  i have noticed many mac applications sort the files alphabetically rather than by type. a good example would be coda by panic.com the files in the file menu are organized alphabetically, i requested for them to add the feature to organize files by type and they've said that its a finder thing. so i went in search to look at other applications to see if they were organizing by type i noticed dreamweaver cs4 had this same problem and now including dreamweaver cs5. there has to be something in the mac that does this and that i can modify. i played with spotlight and it now displays its files by type (thinking thats what i can do) but it didnt take affect in other applications. what library are these applications using to display a file menu for its files?

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• Which firewall ports do I need to open in order for a domain trust to work?

  - by Massimo

  I have two Active Directory domains in two different forests; each domain has two DCs (all of them Windows Server 2008 R2). The domains are also in different networks, with a firewall connecting them. I need to create a two-way forest trust between the two domains and forest. How do I configure the firewall to allow this? I found this article, but it doesn't explain very clearly which traffic is required between DCs, and which traffic (if any) in needed instead between domain computers in one domain and DCs for the other one. I'm allowed to permit all traffic between the DCs, but allowing computers in one network to access DCs in the other one would be a little more difficult.

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• Windows AD: Is loopback processing absolutely necessary in order to apply a user policy to users logging into computers in the OU?

  - by Brett

  I've had our AD setup running on server 2008r2 and now 2012, and I swear, a user policy applied to an OU containing only computers actually does apply to users logging into those computers, without loopback processing enabled. Everything I read seems to say that is not how it should work, but it does. Is this normal behavior? Just tested again - created a policy with a drive map (which is a user policy), applied it to an OU containing my terminal server, forced a gpupdate, logged out/in, and sure enough, the drive is mapped. I did NOT turn on loopback processing.

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• Is it necessary to change the default users and groups in VMware esxi 4.0 in order to have a secure

  - by Teevus

  By default esxi creates a number of users and groups including: daemon nfsnobody root nobody vimuser dcui How secure is this default security setup? Besides changing the root password, is it advisable to modify the default users and groups? E.g. does esxi use default passwords for the accounts or anything else that could be exploited by malicious users? My scenario is very basic and I don't require any custom users or groups as only sysadmins will ever need to administer the virtual infrastructure, and they can do so using the root account. Thanks

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• Can mod_rewrite Conditions/Rules be executed in random order?

  - by Tom

  I have some mod rewrite rules that test for the presence of a file on various NFS mounts and I would like that the tests occur randomly, as a very rudimentary way to distribute load. For example: RewriteEngine on RewriteCond %{REQUEST_URI} ^/(.+)$ RewriteCond /mnt/mount1/%1 -f RewriteRule ^/(.+)$ /mnt/mount1/$1 [L] RewriteCond %{REQUEST_URI} ^/(.+)$ RewriteCond /mnt/mount2/%1 -f RewriteRule ^/(.+)$ /mount2/$1 [L] RewriteCond %{REQUEST_URI} ^/(.+)$ RewriteCond /mnt/mount3/%1 -f RewriteRule ^/(.+)$ /mnt/mount3/$1 [L] RewriteCond %{REQUEST_URI} ^/(.+)$ RewriteCond /mnt/mount4/%1 -f RewriteRule ^/(.+)$ /mnt/mount4/$1 [L] As far as I understand mod_rewrite Apache will look for the file on /mnt/mount1, then mount2, mount3 and so on. Can I randomize this on each request? I understand this is an odd request but I need a creative solution to some unforeseen downtime. On a side note, do I need to redeclare RewriteCond %{REQUEST_URI} ^/(.+)$ each time like I have done? Thanks

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• Sync Framework - In order to evaluate an indexed property, the property must be qualified and the ar

  - by Khor

  I trying to do a snapshot between SQLCE 3.5 SP1 and SQL Server 2008 by using the sync framework. I received a inner exception stated that "{"Unable to enumerate changes at the DbServerSyncProvider for table 'ArInvoice' in synchronization group 'ArInvoiceSyncTableSyncGroup'."}". The inner text for the inner exception stated that "Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.". And the item for the inner exception indicated that "In order to evaluate an indexed property, the property must be qualified and the arguments must be explicitly supplied by the user.". What is going wrong? Any setting i miss out?

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• Android TelephonyManager.getNetworkType() returned constant values in bearer speed order?

  - by Rob Shepherd

  TelephonyManager.getNetworkType() returns one of the constant values. It appears that the constant values have an integer order, by possible bearer link speed. I know using constant values used in the following manner is generally bad, however could one use this to determine a basic cutoff for application functionality and have it work between API levels? (in API-v1 there was nothing above 0x03) if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_EDGE ) { return "3G! party on!"; } else if( telephonyManager.getNetworkType() > TelephonyManager.NETWORK_TYPE_UNKNOWN ) { return "2G, OK. just don't go nuts!"; } else { return "No data sorry" }

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• jQuery event handlers always execute in order they were bound - any way around this?

  - by asgeo1

  It can be anoying that jQuery event handlers always execute in the order they were bound. For example: $('span').click(doStuff1()); $('span').click(doStuff2()); clicking on the span will cause doStuff1() to fire, followed by doStuff2(). At the time I bind doStuff2(), I would like the option to bind it before doStuff1(), but there doesn't appear to be any easy way to do this. I suppose most people would say, just write the code like this: $('span').click(function (){ doStuff2(); doStuff1(); }); But this is just a simple example - in practise it is not always convienient to do that. There are situations when you want to bind an event, and the object you are binding to already has events. And in this case you may simply want the new event to fire before any other existing events. So what is the best way to achieve this in jQuery?

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• What is the order of execution in ASP.NET MVC Controller?

  - by Xinxua

  Say I have a controller called "HomeController" which inherits from Mvc.Controller. Also say I have written the constructor of the controller and some filters for some actions. Public Class ClientController Inherits System.Web.Mvc.Controller Public Sub New() ''Some code End Sub <SomeActionFilter()> _ Function Index() As ActionResult Return View() End Function End Class My questions are : What is the order of execution of constructor, filter, action? Can I have a filter for the Constructor, if I do not want to run the code in it by checking for some conditions?

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• Why in landscape orientation in simulator all the subviews appear out of order?

  - by wolverine

  I was doing a sample app in ipad. I added about 4 to 5 imageviews to the left side of the view vertically. This view will appear when we select the corresponding entry in the splitviewcontroller. In ipad simulator too, all the images were loading and all are working fine in portrait orientation. But when I rotate the simulator to landscape orientation, these imageviews doesnt appear where i placed them. Some of them overlapping each other, some have half of their part in the navigation bar and all. Has gone completely out of order. I am confused why is all this happening. Can anyone help me solve this issue?

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