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• Inverting colors of a PDF

  - by legr3c

  I need to invert all the colors of a PDF document (background, text, graphics, and images). I want it persistent in the file so the inverted viewing options, that some viewers offer, won't help. Rasterizing the document and using image manipulation software is also not an option. I read somewhere that this can be done with the Enfocus PitStop plugin for Acrobat. However I didn't see a corresponding command anywhere. Am I missing something? Then I read that the ARTS PDF Crackerjack plugin for Acrobat offers negative printing so I tried that, too. The option is there but it simply doesn't work. I have been searching for very long for a way to do this. It seems like a common enough task but I just can't find out how to do it. Are there maybe any virtual printer drivers or something of the sort that support negative printing? Can anyone help?

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• can server 2008's task scheduler run a php file?

  - by rg89

  Hello. I have a server 2008 64 bit machine with php5 via fastcgi installed. I want to run a .php script every day at 3 AM. I set up a task and "Last Run Result" says "%1 is not a valid Win32 application" The event properties describe more failure: "Task Scheduler failed to launch action "D:\InetPub\tools\something\build.php" in instance "{88cc01f4-9554-4b8f-9836-34d806337d7f}" of task "\Something". Additional Data: Error Value: 2147942593." Task Category: Action failed to start Is it possible to run scripts using the task scheduler? If not, how should I go about automating the execution of a php script? Thanks

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• two identical broadband lines working as one

  - by Katafalkas

  I have been trying to find an answer to this, but all I get is hobbyists trying to connect they linksys's and get some magic out of it. So I am thinking of a way I could combine two 100Mbp Fiber Optics lines into a single connection for our office. I assume it involves some CISCO learning or something like this. Was thinking that I might need to configure some big router to load-balance the NAT'ing in some way. I assume that meny of you have done something similar and maybe someone could share the knowledge or at least provide some tips ?

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• Force ntpd to make changes in smaller steps

  - by David Wolever

  The NTP documentation says: Under ordinariy conditions, ntpd adjusts the clock in small steps so that the timescale is effectively continuous and without discontinuities - http://doc.ntp.org/4.1.0/ntpd.htm However, this is not at all what I have noticed in practice. If I manually change the system time backwards or forwards 5 or 10 seconds then start ntpd, I notice that it adjusts the clock in one shot. For example, with this code: #!/usr/bin/env python import time last = time.time() while True: time.sleep(1) print time.time() - last last = time.time() When I first change the time, I'll notice something like: 1.00194311142 8.29711604118 1.0010509491 Then when I start NTPd, I'll see something like: 1.00194311142 -8.117301941 1.0010509491 Is there any way to force ntpd to make the adjustments in smaller steps?

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• How to host ASP.NET application externally?

  - by Josh

  I have an ASP.NET application that I can get to locally by going to 192.168.1.102:81/TestApp. I would like to host the application externally by going to domain.com:81/TestApp (I already have my domain pointing to my router and this works fine - I have apache running on port 80 on another server). I modified the router settings to point any request coming through port 81 to 192.168.1.102. I am still having trouble accessing the ASP.NET site (I get the error message that "This link appears to be broken"). Am I missing something? How can I redirect domain.com:81/TestApp to my ASP.NET application? Thanks.

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• Recursively apply ACL permissions on Mac OS X (Server)?

  - by mralexgray

  For years I've used the strong-armed-duo of these two suckers... sudo chmod +a "localadmin allow read,write,append,execute,\ delete,readattr,writeattr,readextattr,writeextattr,\ readsecurity,writesecurity,chown" sudo chmod +a "localadmin allow list,search,add_file,add_subdirectory,\ delete_child,readattr,writeattr,readextattr,\ writeextattr,readsecurity,writesecurity,chown" to, for what I figured was a recursive, and all-encompassing, whole-volume-go-ahead for each and every privilege available (for a user, localadmin). Nice when I, localadmin, want to "do something" without a lot of whining about permissions, etc. The beauty is, this method obviates the necessity to change ownership / group membership, or executable bit on anything. But is it recursive? I am beginning to think, it's not. If so, how do I do THAT? And how can one check something like this? Adding this single-user to the ACL doesn't show up in the Finder, so… Alright, cheers.

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• windows 7 is not working with Ubuntu 12.04

  - by Anand Soni

  I have one problem, I am unable to start windows 7 which is installed with Ubuntu 12.04 because I want to utilize all resource in diff. OS. Let me tell you the installation I have done. I have installed everything with USB because my CD ROM is damaged. 1) I have installed Windows 7 in c: then I have installed Ubuntu 12.04 in C: Now when I start my PC it shows list of OS first like -Ubuntu 12.04 -Windows 7 When I click on Windows 7 it do not starts and again shows the list of OS. I have also tried to reinstall the windows 7 using USB but it gives error of something UI or Boot configuration error. Even now Ubuntu 12.04 is also not reinstalling. Now what I want to do is install windows 7 and install ubuntu 12.04 in virtual box so that I can run both system as this is not working. But can't because I can't open Window 7 even can't format my drive. Please suggest something.

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• Fresh Apache install can't be connected to

  - by Wayne M

  I've got to be missing something here. I have a brand new CentOS server with a LAMP install on it. My domain host (GoDaddy) has the server's IP address configured as the "A Record". Since the server will host subdomains I have enabled NameVirtualHost and set up a virtual host pointing to the web app on the server. I haven't touched anything else in Apache, and it's listening on Port 80 like it should be. However, I can't connect to the server either by DNS or by IP address. I've set up several servers exactly like this one and never run into this before. What could be causing this? Did someone on the host set up a firewall or something that blocks port 80? As I said, I can't connect to the server via anything, but it's a barebones box with LAMP installed on it.

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• How can I change the subject of messages on an Exchange server automatically?

  - by Chris R

  I want to do something more than just normal mail - folder rules; I want to put a layer in front of my exchange server that lets me, for example, rewrite subjects into a more readable form. I get automated messages whose subject format makes them almost useless. Changing the emitting software is not going to happen, so I need to do something client side. I'm interested in anything that would allow me to do this, either on a mac, or on an older linux distro. Preferably the latter, and preferably in a way that I can turn on and forget about.

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• connecting to internal webserver on specific port

  - by bergin

  Hello, We have the BT broadband forwarding on to an internal machine with an IIS web server running. Thats fine, it goes to the sharepoint app, so the outside world can see this app. Thing is we need another app running (a MVC ASP.Net app) and I have set it to :8080. Internally I can get to it fine, but not when I type the IP number. eg. 80.100.232.129:8080 is this something I need to set on the broadband router or something with SBS or somewhere else? thanks in advance

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• what is the best setting for using lighttpd on 8G ram?

  - by user39639

  I have running 8GB ram and 8 x Xeon 3361 system! What is the best setting for running simultaneous connection! What is the maximum? Is setting like this correct? server.max-keep-alive-requests = 0 server.max-keep-alive-idle = 10 server.max-read-idle = 60 server.max-write-idle = 60 server.event-handler = "linux-sysepoll" server.max-fds = 2048 fastcgi.server = ( ".php" = ( "localhost" = ( "socket" = "/tmp/php-fastcgi.socket", "bin-path" = "/usr/bin/php-cgi", "max-procs" = 20, "bin-environment" = ( "PHP_FCGI_CHILDREN" = "40", "PHP_FCGI_MAX_REQUESTS" = "800" ), "broken-scriptfilename" = "enable" ) ) ) please help me!

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• Network monitoring library, or objects, for a cloud

  - by Andrew Smith

  I am looking for library to support server / switch monitoring, to actually be able to check with the device if it's working OK. However this requires some sort of auto-detection and device support. Basically I need to automatically detect a new device, start monitoring it like CPU and PING. So how do I auto-detect the machine remotely, this is something I need library for. Rackspace has something like this - "Cloud Monitoring API". But is there anything opensource which can be used same way? The Nagios and others doesnt have such API, and the big and expensive systems are too big to handle in public cloud, so there must be some other network monitoring engine with API, which can add a new servers automatically and support user isolation for example so I dont see other servers except mine.

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• My laptop suppose to have 6 GB ram but it's only 2 GB installed

  - by monablo

  My laptop is supposed to have 6 GB ram but it only detects 2 GB of it, so I don't know what to do. I searched the web for answer and what i get that there's 2 possible problem: 1- That 4 GB ram card is broken and not working 2- or the 2 ram card have a different path so the windows chose the path of the smaller ram card which would be the 2 GB ram I don't know what is the path in first place so I really don't know what to do. How would I troubleshoot, and work out why the 4 GB stick is not being detected? My laptop's specifications are as follows: Windows 7 Home premium 64- bit Operating system processor : intel (R) core(TM) i7 CPU Q740 @1.73 GHz 1.73GHz installed memory(RAM) : 2.00 GB (but it suppose to be 6 GB -_- ) My laptop is Dell and it's Model N5010

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• some keyboard keys not working properly

  - by surfmadpig

  I'm using windows 7. All of a sudden, a couple of hours ago, this happened: My keyboard number keys [above the letters] stopped working properly, both as numbers and as symbols. Only 5 and 6 are functional. Also, I've noticed that the End key isn't working either, and perhaps a couple more from that group. I'm pretty sure it has something to do with those evil Sticky Keys/Filter Keys/ whatever those ease of access things are, BUT I've turned off all the ease of access keyboard options and nothing has changed. Is it possible that something is still turned on while I unchecked it? Are the on/off checkboxes to control WHEN it happens or IF it happens? I also tried rebooting and uninstalling/reinstalling keyboard from device manager, to no avail. It's certainly a software issue and not a hardware issue, as I've tried another keyboard and the problem persists. And, predictably enough, it's annoying. Any ideas?

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• List existing file server permission groups/users

  - by Patrick

  So we have taken over a new client and their existing file server is frankly a mess. We have migrated their old file server from a 2k box to a 2k8 DFS cluster and now I'm looking at rebuilding both the folder structure and their permissions. Unfortunately its been half done with AD groups (poorly named/no description/notes) and half with individuals named in security on the folders themselves. What I'm looking to do is to dump a complete list of all the folders with their security permissions (ideally I'd like to ignore files but not essential). CACLS got me half way there but fails with an odd error message and its output isn't particularly user friendly and I'm working with roughly 2Tb/250,000 files here so I really need something that gives me a bit more functionality. Question : does anyone have any experience of something similar/know of a bit of software that might help me out?

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• Browser which shows what's been downloaded so far regardless of formatting and layout ?

  - by Mick

  Every now and then a website becomes super-slow (but not broken) because there are too many people looking at it at the same time. When I try and view such a site, say with Firefox, I can see that it is downloading all sorts of components of the site because of the progress information printed at the bottom of the window and I'm sitting there thinking "If only the browser would show me what it's got so far. I don't care if its a jumbled mess, I just want to see what you've got". Does any browser offer such an option?

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• What's normal Taskbar behavior (windows)

  - by Erik

  I'm a fairly new user to windows, and Vista is my first version. I'm a bit confused about the taskbar -- either its behaving oddly or I'm just confused, or I've broken something. When I've got a lot of windows on screen, I thought that clicking on a window's taskbar icon would bring that window to the front. I thought it had been doing that in the past, but I'm not entirely sure. When I click it, it just flashes, a second click minimized, and a third click reopens and brings it to the front. Is this normal?

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• ideal memory configuration 4 bank, ddr3, AM3+ FX - 1 vs 2 vs 4 dimms?

  - by TardisGuy

  Ok, so ive been looking around, trying to learn and understand the way that ram works. Ive gotten one answer that said "The addressing is best for 2 sticks, and when you use 4; it slows down" Another answer said something like: Theres bank/channel interleave that makes the memory read like one stick Also I read something about the memory density also being a factor. I dug further and found out that theres a higher speed limit on my board for 2 sticks vs 4, so now im trying to put an image in my head of how and why, and... pfft. Can anyone explain, or recommend a resource that would answer these questions?

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• What service can hold CPU at lowest frequency possible when on battery load under Ubuntu?

  - by vava

  When I'm running on battery even with "performance" frequency scaling governor, something regularly lowers CPU speed to it's lowest value. I don't really want that, my AC strip usually in another room so I don't really need to save power. How can I find what service doing that? laptop_mode is disabled so that's not it. Update: Looks like CPU being scaled down only if it is under load. If it is more or less idle, it could stay on any frequency pretty much forever, but once it gets loaded, it quickly jumps to it's lowest frequency. Another update: Something sets maximum frequency CPU can have. Ubuntu launchpad bug 242006

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• Just how slow should my VPN be?

  - by David Heggie

  I have a VPN setup between a remote office with 2 ADSL connections (8Mb downstream, 512Kb upstream) and a main office with a 10Mb EFM connection (10Mb both up and down). The VPN is an IPSec connection using a DrayTek 2930 router for the ADSL and a DrayTek 3200 router at the EFM end. However, I'm unable to get speeds over this connection (tested with iperf) of anything over 600Kb or so down from the main office (traffic will pretty much always be from the main office to the remote office) Whilst I realise that there is an overhead and I'm never going to get the "full" bandwidth available over this VPN, I'd like to think that there's something I should be looking at that may help improve it. I've tried using the DrayTek's built-in "VPN Trunking" features which are supposed to load-balance connections, but this doesn't seem to improve matters much. I guess my question is - is this the kind of performance I should expect from this kind of setup and I'll just have to live with it, or should I be able to squeeze something more out of it through some VPN magic?

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• Navigate to a virtual member from an overriden member in the derived type

  - by axrwkr

  Using visual studio, in the editor window, I am able to navigate from the usage of a member to the line and file where it is declared by pressing F12 while the cursor is over that member by or right clicking on the member and selecting "Go To Definition". I would like to find a way to navigate from an override member to the base class member that it overrides. For example, if I have the following class with one method public class SomeClass { public virtual void TheMethod() { // do something } } An I override that method somewhere else in the project or solution similar to the following public OtherClass : SomeClass { public override void TheMethod() { // do something else } } I want to navigate from the declaration of TheMethod in OtherClass to the declaration of TheMethod in SomeClass Is there a way to do this? I've found that I can find the definition of the member in the base class by pressing Shift + F12 (Find all References) and then looking through the list occurances, this works fine most of the time, since the list isn't usually that long but it would be much better to have a way to go there directly.

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• DOS application to allow remote management of files over serial link

  - by tomlogic

  Harken back to the days of DOS. I have an embedded DOS handheld device, and I'm looking for a tool to manage the files stored on it. I picture an application I can launch on the device that opens COM1 up for commands to get a directory listing, send/receive files via x/y/zmodem, move/delete files, and create/move/delete directories. A Windows application can then download a recursive file listing and then manage those files (for example, synchronizing with a local directory). Keep in mind that this is DOS -- 8.3 filenames, 640K of RAM and a 19200bps serial link (yuk!). I'd prefer something with source in case we need to add additional features (for example, the ability to get a checksum of a file for change detection). Now that I've written this description, I realize I'm asking for something like LapLink or pcAnywhere. Norton no longer sells DOS versions of pcAnywhere and LapLink V for DOS seems pricy at $50. Are you aware of any similar apps from those good old days?

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• SSH and Latent Connections (e.g., satellite connections)

  - by user71494

  Most of the week I live in the city where I have a typical broadband connection, but most weekends I'm out of town and only have access to a satellite connection. Trying to work over SSH on a satellite connection, while possible, is hardly desirable due to the high latency ( 1 second). My question is this: Is there any software that will do something like buffering keystrokes on my local machine before they're sent over SSH to help make the lag on individual keystrokes a little bit more transparent? Essentially I'm looking for something that would reduce the effects of the high latency for everything except for commands (e.g., opening files, changing to a new directory, etc.). I've already discovered that vim can open remote files locally and rewrite them remotely, but, while this is a huge help, it is not quite what I'm looking for since it only works when editing files, and requires opening a connection every time a read/write occurs. (For anyone who may not know how to do this and is curious, just use this command: 'vim scp://host/file/path/here)

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• Why does OVFTool hang randomly?

  - by Billy ONeal

  Hello everyone :) Some great helpers here have shown me the VMWare OVF tool for template deployment. My problem is that the tool itself stops at the "Disk Transfer Completed" step half the time I use it. This seems to be random, and when it happens I have to terminate OVFTool and start the transfer over again. The second attempt usually succeeds. Is there something I have broken on the server that might affect this? I'm using the free edition of ESXi 4.0. Billy3

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• How can I stream video from my XP sp3 desktop to my win 7 laptop?

  - by Robb

  I would like to stream media from my XP sp3 desktop to my Win7 laptop. I currently have Windows Media Player 11 on both machines. The XP one is set up for the media sharing service as far as I can tell. I have also set the 'Play To' option to my Win 7 machine on the XP WMP. However, the only way I've been able to 'stream' is to simply tell my Win7 WMP to add a network folder to its libraries. This seems to work over the wifi but it does stutter a touch, even with a 20 second buffer. The stuttering also appears randomly, maybe 4-5 times during a 22 minute show. I feel like I'm doing something wrong. Is this setup OK or am I missing something?

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