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• Utility to take daily screenshots of a webpage

  - by Kevin L.

  I would like to have a visual history of my Tomato bandwidth graphs, so that I can roughly/manually correlate them with some other factors. Tomato can squirrel away the actual data points, but I'd rather not deal with importing it into some visualization tool. For sheer simplicity, a single image per day would be preferable. I'd like a program that can wake up at say, midnight, take a screenshot of a given webpage (the URL will always be the same), and save that image to a folder, maybe named after the date/time. I'd prefer OS X, but Windows and Linux are fair game too; I use all three. Any suggestions?

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• Java and Sendmail HELO requires domain address

  - by ealgestorm

  I am trying to set up emailing from a java web application hosted on a linux server (Cent OS) in apache. Sendmail is working fine from the command line as root on localhost but when trying to send emails from the java web app (also on the same server from localhost) the following java exception is thrown. 501 5.0.0 HELO requires domain address EDIT: I have read that some people have found this is due to an incorrect hosts entry currently the hosts file contains 127.0.0.1 Centos-VPS localhost.localdomain localhost and i'm not sure what the Centos-VPS bit at the start is for but this is a clients hosted server so don't really want to break stuff EDIT see the RFC is helpful ... 501 Syntax error in parameters or arguments Now I know what the problem is! (note the sarcasm people.)

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• Almost all of my programs arn't recognized anymore.

  - by alaster

  I had a virus on my computer and was able to remove it, however, now almost all of my programs won't work. Even trying to open freecell pulls up the "select a software to run this in" window. I can't even install software anymore because after downloading a setup file and clicking on it, it too opens the "choose a program to run this in" window. I'm trying to find a way to fix without reinstalling the OS. Does anyone know a way to restore the file/files that are missing that are causing this problem without starting over?

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• How to map a virtual desktop to a monitor in a multiple monitor setup?

  - by t3

  OS: Microsoft Windows Vista SP2, Microsoft Windows 7 My laptop is plugged to a docking station that supports dual monitors, which I use extensively. I have windows placed where I want them. All is well and predictable with this setup until I un-dock. The moment I un-dock all windows that I placed in the secondary monitor piles up in the primary monitor and it is an unholy mess. So, I am looking for a solution where if I use virtual desktops, one of them can be mapped to a monitor and when un-docked what was there in the secondary monitor stays in a virtual desktop. Do you folks know of a tool or workaround that can address my quandary?

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• NetworkManager detects no networks with a RTL8188CE

  - by Cormac O'Brien

  I'm on a 2011 Lenovo Thinkpad T420i with a Realtek RTL8188CE WiFi adapter. Here's the scenario: I pop in the Ubuntu LiveCD to install. Laptop detects all networks in range, I connect to my home network, internet working great. Once Ubuntu finishes installing, the home network I am connected to is the only one which appears in the applet list. Upon restarting or waking from suspend, NetworkManager does not detect any networks – it simply displays "Disconnected" under the Wireless Network section of the menu. I am able to connect to my home network by using the "Connect to Hidden Wireless Network" option and it works immediately. I have yet to test if this works with other SSIDs. I have tried reinstalling the entire OS as well as NetworkManager and my wireless drivers. For hardware info, I ran: cormac@cormac-T420:~$ sudo lshw -c network Here is the output for my wireless card: *-network description: Wireless interface product: RTL8188CE 802.11b/g/n WiFi Adapter vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: wlan0 version: 01 serial: d0:df:9a:08:73:50 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=rtl8192ce driverversion=3.2.0-26-generic firmware=N/A ip=192.168.1.138 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn resources: irq:17 ioport:5000(size=256) memory:f2500000-f2503fff I can provide more information if required. This was not a problem in Natty or Oneiric. I hope this can be fixed, I don't want to have to ask for an SSID wherever I need to connect.

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• Empty MacBook Pro, no SuperDrive. How do I install Windows?

  - by MCcz

  My situation is this: HDD1: Empty 180 GB SSD HDD2: Empty 500 GB HDD (instead of SuperDrive) Accessories: Windows 8 ISO 64 Gig USB stick Second computer SuperDrive in USB enclosure What I need: Install Windows 8 on the SSD in the laptop What I tried: Create bootable USB – Doesn't work. Macbook doesnt show me USB as an option after holding OPTION key. Install Windows through SuperDrive connected via USB – Doesn't work. On the internet, there are thousands of articles telling me all kinds of solutions, expecting me to have Mac OS on my laptop. Is there any solution to this?

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• Persistent retrying resuming downloads with curl

  - by Svish

  I'm on a mac and have a list of files I would like to download from an ftp server. The connection is a bit buggy so I want it to retry and resume if connection is dropped. I know I can do this with wget, but unfortunately Mac OS X doesn't come with wget. I could install it, but to do that (unless I have missed something) I need to install XCode and MacPorts first, which I would like to avoid. Curl is available though it seems, but I don't know how that works or how to use it really. If I have a list of files in a text file (one full path per line, like ftp://user:pass@server/dir/file1) how can I use curl to download all those files? And can I get curl to never give up? Like, retry infinitely and resume downloads where it left off and such?

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• No audio driver for ECS 7050-M v1.0a for Windows 7?

  - by NudeRaider

  I have an Elitegroup 7050-M v1.0a motherboard and I've used the Realtek HD audio driver it came with for years under Windows XP. There was a nice mixer panel, an equalizer and sound profiles that added effects. All of these menus are gone now that I've moved on to Windows 7 64 Bit. All I have is the basic settings under system control - sound, but they are not nearly as detailed. To clarify: Sound works, but the advanced settings I got when using older OS's are gone. Older drivers don't seem to work under Win7 and I can't find one for Win7. So how can I fully utilize the capabilities of my HD sound chip under Win7?

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• Apache on Windows in production environment? Why not?

  - by tillda

  "Everyone" know that Apache is for Linux/Unix and on Windows IIS is the way to go. However, I'm not a pro at Linux and it would be an enormous relief for me to use just the same setup in the production environment that I use during development. I'm a solo developer and I'm trying to make things as simple as possible. I've already got rid of other issues like storage (-cloud) emails (-postmark). So, what are the real drawbacks that can happen when I just put Apache in Windows virtual private server from Rackspace and use it as the main production environment for a PHP project? Money for more VPS resources is not that big issue compared to the possibility of not having to learn a different OS. Super-heavy traffic is not expected. Also my PHP project can be quite optimized. There are some heavy scripts, but only for the inside (logged) users. All else can be served more or less statically.

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• Specific apache + mysql settings for a light-weight site

  - by Good Person

  I have a small website with a Joomla and a Moodle set up. It seems that both of these are very slow. The server (CentOS release 5.5 (Final)) is a virtual dedicated server with about 2GB of ram. I don't expect to ever get more than 10-15 people on at the same time (and if that is high) What settings could I change in either apache, mysql, or even the OS to increase the performance of my site? I'm not concerned about running out of resources if I get too many visitors. If you need more specific data leave a comment and I'll edit the question.

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• Web map services displaying poorly

  - by user29261

  Web map services no longer display correctly in ArcGIS and Google Earth - no one else on network is experiencing these. Using windows 7 OS. These problem began abruptly (1 day they were working, the next they were not). Specific problems include not displaying at all; correct display on 10% of the monitor and repeating lines of coloured squiggles and text on the remaining 90%; and small, widely spaced, pixels in place of colour fill. Links where this occurs: arcgis http://wms.ess-ws.nrcan.gc.ca/wms/toporama_en Google earth http://openmaps.gov.bc.ca/kml/BCGov_Web_Map_Library.kml I can't pinpoint any changes to the computer setup which may have prompted this, however, adding arcgis 10.1 SP 1 occured around the same time. Probably just a coincidence. Anyone had similar problems? or solutions to these? Thanks for any thoughts. Jim

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• Amazon - install a complete server on EBS

  - by user1169575

  is it possible to install a full working OS with a webserver, db, and all needed stuff on an EBS storage? If so, would I immediatly gain benefits by mounting this EBS on a better instance? Otherwise (if I cannot install a complete image, or if you don't think it's reasonable) can I install the software so that I only need to mount the EBS on a new instance to have it working? I purchased a Medium Reserved Instance, but when there will be the need to get a better instance I'd like to move the whole db/website, I'd simply buy a better instance and then attach the EBS. Is it possibile? I'm imaging about it like an hard drive that would be mounted on a better server. Of course, more RAM would allow me to increase caching limits, and that's ok, but I don't want to reinstall anything (the main website is a magentocommerce and it's pretty painful to move it). P.S. is the Standard EBS (100 IOPS) valid or do I need to choose a Provisioned IOPS (up to 1000 IOPS)?

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• Most efficient RAID configuration with 6 disks?

  - by Bob King

  I have a hand-me-down server that I'm setting up at home and it's got 6 72Gb hard disks (as well as 2 18Gb drives that I'm using for the OS). What is the best way to configure those 6 drives? Should I RAID 5 or 6, or go with something simpler, like mirroring? I'm planning to use it to hold a source control repository, and possibly data for a development SQL server. The machine has a hardware raid controller. It is an old IBM server.

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• Mirroring of Apps across servers

  - by user1038814

  We wish to host multiple apps across multiple servers. What we are looking for (ideally) is an existing solution which will work. For example, normally to do it we'd follow a route (for failover) like: App is installed on one server along with mysql database App is also installed on a second server. Rsync is used to mirror the files over to the second server and ensure consistency MySQL is installed with a Master-Slave setup. We use a service such as DNS Made Easy which has a DNS failover. If one server goes down it automatically routes traffic to the backup server We have done the above a few times and generally its fine. The issue I have here is that the above is for one app. What I would like to look at is how we can manage for multiple apps and if there is a layer (such as VMWare) that has complete mirroring built in at the OS level? For example how do web hosts currently do it when they ensure that more than one machine is running a bunch of hosted websites. If you were running hosting and you had 200 clients on a server you would want the same clients across 2 or more servers and want everything mirrored. Any advice would be much appreciated.

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• 12.04 doesn't boot anymore after a power failure

  - by Felix

  I'm a Windows user and I have no experience with Linux and Ubuntu. I installed Ubuntu 12.04 on my netbook (Asus 1215B) and everything works fine. Yesterday I ran the "update application" and updated over 120 "things" (I have no idea what exactly). After that I was asked to reboot, and I did. Ubuntu starts again and at the load screen with these 5 dots that normally begin to change color, it freezes. After 20 minutes I took out the battery to try another reboot (yes, not the the best idea), and now nothing happens. I boot from the HDD and I get an Error BOOTMGR is missing. I have important data on the hard drive. Is there an option to get this fixed? Or if not, to at least get the data from the hard drive? Ubuntu 12.04 64-bit Edit: it is ONLY Ubuntu on this Netbook, which uses the whole 500gb HDD as 1 Partition. Filesystem is NTFS. Whole Hardware seems okay. The USB drive which i used to instl the Os was formated in fat32

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• Grub2 cannot detect Windows 8

  - by MetaChrome

  At installation it did not detect Windows. I mounted the Windows partition and have run os-prober with no results returning. I am able to boot Windows or Ubuntu by specifying the partition in UEFI boot order. The bios does not appear to allow booting with legacy. SecureBoot is on. This is with Ubuntu 12.04 LTS on a Inspiron 15. Here is the gdisk: 1 2048 1026047 500.0 MiB EF00 EFI system partition 2 1026048 1107967 40.0 MiB FFFF Basic data partition 3 1107968 1370111 128.0 MiB 0C01 Microsoft reserved part 4 1370112 2394111 500.0 MiB 2700 Basic data partition 5 2394112 544743423 258.6 GiB 0700 Basic data partition 6 606183424 625140399 9.0 GiB 2700 Microsoft recovery part 7 544743424 545230847 238.0 MiB 0700 (/boot) 8 545230848 556949503 5.6 GiB 8200 (swap) 9 556949504 606181375 23.5 GiB 0700 (/) When installing ubuntu, I believe I specified that the bootloader be installed on /dev/sda. I added the following to /etc/grub.d/40_custom but booting ubuntu did not offer a grub menu: menuentry "Windows 8" { set root = "(hd0,4)" chainloader +1 } When booting I think I see "EFI Disk error" flash very quickly before Ubuntu starts booting.

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• Can't resolve Mac's machine name on VPN

  - by Raghuveer

  My mac'c machine name is something like this: hostname.company.com but whenever I connect to VPN, it becomes something like vpn-xxxx.company.com where xxxx are some random numbers. Because of this, some of my scripts which are dependent on host name gets blocked. We use the standard mac's vpn setup which comes with OS X Lion (under network preferences). How can I resolve to the correct mac's name even if I am on vpn ? That is even if I am connected to VPN, my machine name should resolve to hostname.company.com and NOT to vpn-xxxx.company.com. Any suggestions would be really appreciated.

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• Windows W8, L8 and now H8

  - by raccoon_tim

  Windows 8 is having to endure with a lot of headwind at the moment. The weather forecast doesn’t appear to improve in the near future either with prominent game developers and publishers taking to the barricades accusing Microsoft of building a closed ecosystem. I am forced to side with this opinion as I too see services the likes of Steam as playing an important role in the gaming world, which just happens to be an industry that cannot be sidelined. What Microsoft is attempting to do is merge the PC and mobile markets. The Windows Marketplace is to be the only place where you can purchase Windows applications in the future starting now with Metro apps. This is what Apple, Google and Microsoft have been doing with mobile devices for some time now and it’s what we have all come to expect. The PC market is different, however. It has always been open, which has resulted in a diverse market allowing for third parties to build successful distribution and marketing networks. You could argue that Microsoft is just doing something that Steam has been doing for a long time now but the difference is that Microsoft would own both the marketplace AND that operating system, which would eventually give it dominance over the whole Windows application distribution network. Currently there is no real alternative to Windows in the PC gaming world but I would expect to see Mac OS and Linux getting more popular if Microsoft does not notice the signals coming from the gaming industry and choose to once again open up the markets on the PC.

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• Is GPU active when there are not any monitors?

  - by Mixer

  Does GPU render anything when there is no monitor plugged in? Today I turned my old PC into some kind of a "server" which means that I want it running 24/7. I don't need any display (I will operate through ssh) so when everything was set up I removed my monitor. After a hour I checked my graphic card's cooling system and it was still hot. My graphic card is GeForce 8600 (with DVI connector), OS is Debian Linux. What is the best solution in this situation (standalone server) if GPU is active and I don't want it to waste power?

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• Hardware changes to require XP Activation ? (for a Virtual Machine)

  - by NVRAM

  I have WXP-64 running on a VM and, for testing and performance reasons, I would like to occasionally change the allocations for it. Changes might include: Number of CPU cores, Amount of RAM Add/remove network adapters. But I'm concerned that XP will demand re-activation and that I might eventually have licensing issues if I do this. So, can anyone tell me: What kind of changes trigger re-activation in XP? Is there limits or caveat with regard to re-activation? I've perused this question and the article it references, but wanted more recent and verified info. (FWIW, I'm not trying to cheat: the OS copy was purchased explicitly for the VM.)

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• Working Qt controls in a 3d environment

  - by Jay

  I need some advice from a Qt expert. The background: I have a 3D engine (ogre3d) working in concert with Qt. The 3D Content is displayed in a widget (using a custom OS window in the client area). I'm able to overlay arbitrary Qt widgets onto the 3d world using the widget render() method and a shared bitmap. This makes a great "heads up display". I can use the standard Qt style sheets and animation using this technique. My goal I'd like to go a step further and allow the user to move these rendered widgets using the mouse. I'd like some advice on the best way to implement this. Possible solutions: The widgets in the HUD are not part of the inheritance chain. I render them manually. They don't get events though. I could add them to the inheritance chain so they get events in the usual way. Then I would need to change them to render to my shared bitmap instead of to the operating system. I looked at this once but couldn't find enough information to implement it. Capture mouse events in the 3D display widget and EMIT them to child controls. I basically create my own event handling chain. Any suggestions on how to implement this? I'm also considering switching to Qt5. I'm not sure how that might affect this decision.

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• Is it possible to share Skype's profile across OSs?

  - by Mihail

  in my machine I have two Windows OSs plus a Linux based one and I have Skype in them all. I don't mind Linux because there software is already different, but I wanted to sync my profile between both Windows so that I have access to all the conversiations and settings independently of which I'm using. So I created a directory junction of %AppData%\Skype\username but when I change OS when I start Skype I get a message telling me that the password was wrong and I have to input it again. This works until I change to the other where I get the same message. Is it possible to share Skype's profile across OSs? If so, how?

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• How come there is still so much programming work?

  - by jd_505

  First I'd like to say that I am not pretty sure that this question will meet the guidelines. I think it can goes under the "Freelancing and business concerns" bullet, but I am not sure. Anyway, I will give it a shot. I wonder how the programming jobs hasn't yet "dried" because of the software evolution, for example, I am a developer myself, which means that I do care about software (I mean I am not of the type of guys that needs a computer mainly to just browse the Internet), and still I wouldn't mind if I never receive any more updates on my Ubuntu machine. I find that it provides everything I need, and while the updates provide various bug fixes/improvements, I wouldn't mind using it with it's current state for the rest of my life, for 2 years of Ubuntu usage I have never bumped at a serious bug/problem. Another example is Windows, almost half of it's users still use XP, which is practically ancient, yet they find it satisfying all their needs (and I agreee with them). I could go with many more examples, but by now you are understanding my point and my question. While new "trends" appears all of the time (like a new mobile OS) which runs on new platforms and requires some fresh development work, still the majority of the software effort goes in to what I consider as "completed projects", or at least a state of a project which is enough to be considered as completed. Do you have an explanation ? I can't think of the right tags for this question, please edit it the way you find it to be most appropriate. Thanks.

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• Where can I store driver files so that Windows sees them when it 'searches automatically' for them?

  - by qroberts

  I am in the process of creating a few generic images and I have downloaded all the drivers for all the models of machines we use here. I can extract these drivers to any location but I am not sure where Windows looks when it is searching for drivers. Is there a driver store somewhere in Windows that it searches through? These images will be created for: Windows XP, Windows 7 x86/x64 Are the locations different between Windows XP and Windows 7? Are they different if the OS is x64 based? I know Windows likes to differentiate 32/64bit software all over the place, not sure if they do the same with driver stores.

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• TCP Sessions and IP Changes

  - by Kyle Brandt

  What happens to a TCP session when the IP of a client changes? I did a simple test of having netcat listen on a port, and connecting to that port from a client machine. I then changed the IP of the client while that nc session was open and sent some data, no data was received by server after changing the IP. I know they are different layers, but does TCP use IPs for part of how it distinguishes sessions? Does my example not work because of how the application handles it, or is this not working because of something happening at TCP/IP/Ethernet layers? Does this depend on the OS implementation? ( I am most interested in Linux at the moment)

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