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• How to sync passwords one-way between windows domains without trust relationship?

  - by Franco C.

  We're migrating from Windows 2003 to 2008 SBS. We will run concurrently for a short period of time. I cannot establish a trust relationship between Server 2003 & Server 2008 SBS and I would like to know if there is a way to sync the passwords between 2003-2008? For example, I would like to dump the pre-encrypted passswords to a file in 2003 and then use this to update the passwords for the correspoding usernames in 2008 SBS. Is this possible? I have no need to ever see the clear text version of the passwords. I see one commercial product, but it hardly seems worth it given the temporary nature of my project... Thanks, Franco

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• How can I ensure my Samsung Series 7 is actually using the Radeon switchable graphics?

  - by patricksweeney

  I have a Samsung Series 7 with the Radeon 6750M switchable graphics. The ATI software lets you force programs to use the dedicated card. However, I'm not convinced it is actually ever using it, as the frame rates on some non-taxing games (Portal, TF2) are merely OK. To make matters worse, it looks like the ATI Catalyst Control has vanished from my laptop. To make it even worse, you can't download the driver and ATI CCC from ATI's site, you need to download it from Samsung, and the ZIP they provide is corrupted. How can I ensure my Samsung Series 7 is actually using the Radeon switchable graphics?

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• How computers display raw, low-level text and graphics

  - by panic

  My ever-growing interest in computers is making me ask deeper questions, that we don't seem to have to ask anymore. Our computers, at boot, as far as I understand it, are in text mode, in which a character can be displayed using the software interrupt 0x10 when AH=0x0e. We've all seen the famous booting font that always looks the same, regardless of what computer is booting. So, how on earth do computers output graphics at the lowest level, say, below the OS? And also, surely graphics aren't outputted a pixel at a time using software interrupts, as that sounds very slow? Is there a standard that defines basic outputting of vertices, polygons, fonts, etc. (below OpenGL for example, which OpenGL might use)? What makes me ask is why OS' can often be fine without official drivers installed; how do they do that? Apologies if my assumptions are incorrect. I would be very grateful for elaboration on these topics!

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• Why is "chmod -R 777 /" destructive?

  - by samwise

  This is a Canonical Question about File Permission and Why 777 is "destructive". I'm not asking how to fix this problem, as there are a ton of references of that already on Server Fault (reinstall OS). Why does it do anything destructive at all? If you've ever ran this command you pretty much immediately destroy your operating system. I'm not clear why removing restrictions has any impact on existing processes. For example, if I don't have read access to something and after a quick mistype in the terminal suddenly I now have access well... why does that cause Linux to break?

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• Preferred method for allowing unprivileged UNIX/Linux users to view syslog information

  - by Joshua Hoblitt

  I have some non-privileged "role accounts" that need the ability to view [some of] the local syslogs (eg. /var/log/messages) for debugging purposes. This is explicitly local log data, not remote syslog, logstash, etc. Obviously, there's several ways to address this issue. What I'd like to know is if there is a fairly "standardized" way to solve this issue. Typically, I solve this problem with sudo but either POSIX groups or acls is attractive as it's few chars for the users to type and it removes entries from the sudo log. However, I don't believe I've ever seen that done before. What is your experience? How do large install base sites address this?

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• How to generate correlated binary variables

  - by jonalm

  Dear All I need to generate a series of N random binary variables with a given correlation function. Let x = {x_i} be a series of binary variables (taking the value 0 or 1, i running form 1 to N). The marginal probability is given Pr(x_i = 1) = p, and the values should be correlated in the following way E[ x_i x_j ] = const * |i-j|^-alfa where alfa is a positive number. Is it possible to generate a series like this? preferably in python.

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• Sikuli List of Functions & Operators

  - by PPTim

  Hello, I've just discovered Sikuli, and would like to see a comprehensive functions list without digging through the online-examples and demos. Has anyone found such a list? Furthermore, apparently Sikuli supports more complex loops and function calls as well, and seems to be based in Python(!!). Examples would be great. Thanks.

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• VMware - Broadcom 1000Gbps NIC does not link at 100Mbps to a Cisco switch port

  - by Spirit

  Today we've stumbled on a very awkward situation with our VMWare Server. The server is with ESX 3.5 that has a 1Gbps NIC. We bought a brand new managed Cisco Linksys switch with 10/100Mbps interface ports but when we plugged the cable in one of the ports the link simply does not wanted to activate :S... Does anyone with more VMware experience have ever had similar problem? From what I know is that 1Gbps NICs are backwards compatible with 100Mbps switches. This is what we've tryed so far but with no success: Tryed: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004089 Tryed to modify the /etc/modules.conf folowing the guide from this article http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=813 After the changes I have restarted the networking services using # service network restart, # service mgmt-vmware restart and # service vmware-vpxa restart It seems that no matter how many times, or whatever approach/method (GUI or Shell) we try to change the speed and duplex of the network adapter and to force it to 100mbps it only accepts 1Gbps .. I am starting to go nuts :@

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• 32bit ODBC Postgres driver on Windows 2008 R2 x64

  - by uaise

  I'm trying to install the Postgres ODBC 32bit driver on a Windows 2008 R2 64bit machine. After installing it, with no errors, I go to the ODBC panel, the 32bit version under the /syswow64 folder and try to add the driver, select the Postgres driver from the list but I get an error 126, saying he can't find the driver at the specified path. The problem is that the path he shows me, is the exact path the driver is in, I double checked on the registery (on the HKLM\SOFTWARE\Wow6432Node\ODBC\ODBCINST.INI\ location) and it's fine there too. A couple more people on technet have the same issue too. Did anyone ever run into this? Any ideas would be greatly appreciated. edit: the driver works fine on my win7 x64 test machine, this behaviour only happens on the server.

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• Using command line to connect to a wireless network with an http login

  - by Shane

  I'm trying to connect to a wifi network where it hijacks all requests and redirects you to a page where you have to agree to a terms of use before it lets you connect to the actual outside world. This is a pretty common practice, and usually doesn't pose much of a problem. However, I've got a computer running Ubuntu 9.10 server with no windowing system. How can I use the command line to agree to the terms of use? I don't have internet access on the computer to download packages via apt-get or anything like that. Sure, I can think of any number of workarounds, but I suspect there's an easy way to use wget or curl or something. Basically, I need a command line solution for sending an HTTP POST request essentially clicking on a button. For future reference, it'd be helpful to know how to send a POST request with, say, a username and password if I ever find myself in that situation in another hotel or airport.

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• Reverse Proxy (mod_rewrite) and Rails (absolute paths)

  - by SooDesuNe

  I have front end rails app, that reverse proxies to any of a number of backend rails apps depending on URL, for example http://www.my_host.com/app_one reverse proxies to http://www.remote_host_running_app_one.com such that a URL like http://www.my_host.com/app_one/users will display the contents of http://www.remote_host_running_app_one.com/users I have a large, and ever expanding number of backends, so they can not be explicitly listed anywhere other than a database. This is no problem for mod_rewrite using a prg:/ rewrite map reverse proxy. The question is, the urls returned by rails helpers have the form /controller/action making them absolute to the root. This is a problem for the page served by mod_rewrite because links on the proxied page appear as absolute to the domain. i.e.: http://www.my_host.com/app_one/controller/action has links that end up looking like /controller/action/ when they need to look like /app_one/controller/action mod_proxy_html seems like the right idea, but it doesn't seem to be as dynamic as I would need, since the rules need to be hard coded into the config files. Is there a way to fix this server-side, so that the links will be routed correctly?

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• New interesting languages

  - by wvd

  Hello all, I've been programming for 4 years now and I feel it's time for a new language. I've been doing Python, Java and some C++/Erlang/Haskell along those 4 years but I'm looking for a new language. I'm mainly looking for one which I could use later when I'm getting hired, but it also needs to be relatively new. Any ideas? Thanks, William van Doorn

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• script to test mail server

  - by WebDude

  Ever since a windows update that took down my IIS6 mail server a few weeks back, I've been really paranoid about my mail server working. So every time I run a windows update I fire up command prompt and send myself a quick test mail. Like so: > telnet localhost 25 > helo domain.com > mail from: [email protected] > rcpt to: [email protected] > data some random body to mail myself . This is a realy great way to test my mail server, but it's a pain in the neck to do quickly. Is there anyway i can run this in a batch script or something as a quick test? I've tried a bat file but this just waits after i call telnet I've also explored if telnet accepts any input files and it does not seem to. What's the best way to do this?

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• My computer is playing audio without any program open

  - by super x man

  This is the weirdest thing ever that has happened to my computer (running Windows 7). I haven't installed anything lastly, except lavasoft adware antivirus When my computer stats then audio starts playing, mostly hip hop There is no programs opened. I tried killing all unknown processed, no success. I tried resetting the firewall options of the antivirus, no success. If I disconnect from internet, then it works. The antivirus is not detecting anything. Is somebody is streaming from another house? Is that possible? and making my life impossible. How can I check and stop this?

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• How to follow up new technologies and software releases as they come out

  - by Developer

  I don't know if this is right place to ask question, if not please move it to right area please. Is there a website/app/forum/newsletter where I can followup different softwares or technology and feature soon after their new releases. i.e. ipad iphone ios 7 release as soon as it will release with its feature. andriod next version soon after it release with its feature. coreldraw x7 whenever it will rlease zend framework new version when ever it will release. mac php new version photoshop new version ....... there are lot more list than that which goes on and on and Its difficult to follow up new technology as they come out. Any better and less time consuming way to follow up.

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• Jython: is there a clean way to implement a Java interfaces with function references?

  - by auramo

  I know that I can implement a Java interface with Jython like this: class MyListener (Listener): def foo(self, event): print(str(event)) Python has first-class functions so that seems like an overkill - especially for interfaces with one method. Is there a way to just pass a lambda or function which implements a single method in an interface instead?

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• IIS - Script for repeated hacks on a website

  - by dodegaard

  I currently have a site that is armored by ELMAH as its reporting mechanism. Each time someone hits a URL that is incorrect it notifies me or logs to the system. This is annoying for someone fat-fingering the URL with a misspelling but great when a hacker is trying to crack a site of mine. Has anyone ever written a script for IIS 7 on Win 2K8 that blocks an IP based on repeated attempts to hit a website? I've looked at Snort and other IDS systems but if I could get a script that could be linked to my ELMAH system it might be the perfect thing. PowerScript, etc. is what I was thinking. Hints and recommendations are wonderful and if you think a true intrusion detection system is recommended give me your ideas. Thanks in advance.

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• How to process audio in real time?

  - by user1756648

  I am giving some audio input through microphone. I recorded it in Audacity, it looks something like as shown below. I want to process this audio in real time. I mainly want to do this. 1) see real time audio amplitude vs time graph 2) perform some actions based on some thing (like if a specific type of hike is seen in audio, then do something, else do something else) Is there any python module or C library that can allow me to do this ?

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• Hidden features of Emacs Lisp?

  - by anon

  What are some features of Emacs Lisp that you use to solve real problems? One feature per answer Give an example and short description of the feature, not just a link to documentation Label the feature using bold title as the first line See also: Hidden features of Python Hidden features of Ruby Hidden features of Perl Hidden features of Java

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• Why has my Mac been running fsck_hfs for two days now?

  - by Nate

  I first noticed that fsck_hfs was running, taking up 50-75% of a CPU, yesterday. It continues to run today. ps shows that it is doing /sbin/fsck_hfs -f -n -x -E /dev/disk3. Only problem: I don’t think I have a /dev/disk3. Why is it running? Will it ever finish? Can I kill it? What is /dev/disk3? Could it be my Time Machine volume, which is not mounted at the moment? System Info: MacBook Pro (2008). It has two disks installed—the internal disk (/dev/disk1) and a PC Card SSD (/dev/disk0, surprisingly). It connects to a remote Time Machine volume attached to an Airport Extreme base station.

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• Annoying Search Behavior - Search Companion

  - by DavidStein

  I'm running Windows XP Professional, and ever since the last service pack I've had a searching problem. When I want to search a network drive, I get the following message: This folder is not indexed. To search this directory plase use Search Companion or add this directory to your index via options. Basically, I have two questions. Is there some way that I can use the indexed search where appropriate and then have it switch over to the Search Companion automatically? Second, how does a programmer look at this code and think this is a good idea? I realize that this question is rhetorical. However, I must enter my search string into one search, receive the error, and then click "Search Companion" to bring up the new search window. This window doesn't even take the defaults from the previous one so I have to specify the search string and drive again.

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• Both screens always stay on after adding second monitor

  - by J.Merrill

  I had a single 1920x1080 monitor on a Windows 7 desktop PC and, per "power management" (not screen saver), the screen would go blank after 10 minutes. I added another monitor (2560x1600 if that matters) and since then, neither screen has ever blanked. I've tried turning on the "blank" screen saver, but that didn't help either -- I can go away for hours and when I come back, both screens are on. I've seen others with similar issues apparently caused by e.g. wireless mice that seem to move infinitesimally, but I've got the same wired mouse I had before. I can't understand why neither the screen saver nor power management is doing what it should to blank the screens, when "power management" used to do it when there was only one monitor. Maybe it doesn't matter so much with current LCD display technology (no "burn in") but doesn't a monitor use more power when "power management" hasn't turned off the display? Thanks for any suggestions.

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• Filtering attachment types in Google Apps (free Google Business)

  - by Ernest

  We have Google apps in our company for mail delivery, our business can't pay the business version yet, however, we need to control the attachment types that employees download. We recently switched from another hosting provider who recomended us to plug Google Apps for mail when we moved the domain, we had a firewall before which was able to prevent certain file types to be downloaded. I know the business version has section for filtering mail (postini services). Is there a hack around my problem? Anyone ever had this problem? Thank you! UPDATE: The main problem is gmail apps uses ssl connection, can this be changed ? how can i get the firewall to filter files only allowing *.doc, *.xls y *.pdf.

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• Which language should I learn?

  - by Alex

  I am already pretty good at PHP and now want to expand my knowledge to desktop programming.. which language would be: The one's I'm mainly looking into are: Java, C#, C++, Python 1) Easier to learn? 2) Most suitable for Making 3D games and applications with sockets? One more thing - Although I'm looking to code for Windows, I may also want to do a bit of programming for Mac OS after a while.

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• BES 5.x issues when connecting to Exchange 2010 SP2 RU4

  - by makerofthings7

  Ever since we updated from SP1 RU4 to SP2 RU4 we have noticed that our BES devices will simply stop receiving email. This has occurred at least 5 times in the past few weeks. Today, while speaking with RIM support (a T3 contract), they said that they have reports of sporadic connectivity issues from some BES users. This has been occurring with Exchange 2010 SP2 RU4, and have no public information to give us. We were able to temporarily get things running by doing any or all of the following Restart the BES server Recreate the MAPI profile (deleted the keys in the registry) Restart the CAS servers Wait it out (2 hours) What other options should I take to resolve this issue?

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