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• Time out while mounting samba share

  - by nullDev

  I am trying to mount a hard-disk connected to my WDTV Live box. The following command smbclient -L 192.168.1.2 -U guest gives the following output: Domain=[WORKGROUP] OS=[Unix] Server=[Samba 3.5.1] Sharename Type Comment --------- ---- ------- Expansion_Drive Disk Expansion_Drive MICROVAULT Disk MICROVAULT IPC$ IPC IPC Service (WDTV LIVE) Domain=[WORKGROUP] OS=[Unix] Server=[Samba 3.5.1] Server Comment --------- ------- WDTVLIVE WDTV LIVE Workgroup Master --------- ------- WORKGROUP But if I try sudo smbmount //WDTVLIVE/Expansion_Drive /home/ashish/wdtvlive/ -o guest,rw I get the following: Warning: mapping 'guest' to 'guest,sec=none' mount error(110): Connection timed out Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) I am able to browse and mount through Nautilus as well, but I dont want the drive to be mounted at gvfs.

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• How can I convert .mp4 files to .3gp using ffmpeg?

  - by harisibrahimkv

  I would like to download a few videos from youtube and convert them to 3gp so that I can play them on my phone. I would like to know how this can be done using ffmpeg. I tried the various results on the net only to get the following errors. I used: ffmpeg -i dil.mp4 -sameq -ab 64k -ar 44100 dilenada.3gp I got: Unsupported codec for output stream #0.1 Seems stream 0 codec frame rate differs from container frame rate: 2000.00 (2000/1) - 29.92 (359/12) I used: ffmpeg -y -i dil.mp4 -r 20 -s 352x288 -b 400k -acodec libfaac -ac 1 -ar 2000 -ab 24k dilenada.3gp I got: Seems stream 0 codec frame rate differs from container frame rate: 2000.00 (2000/1) -> 29.92 (359/12) Unknown encoder 'libfaac' What am I doing wrong?

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• Logitech M515 does not work after upgrade to 12.04

  - by user877329

  After upgrading to 12.04, my Logitech M515 does not work here is some output from the terminal: lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 003: ID 0411:002a BUFFALO INC. (formerly MelCo., Inc.) Bus 001 Device 004: ID 055d:3021 Samsung Electro-Mechanics Co. Bus 002 Device 002: ID 413c:2005 Dell Computer Corp. RT7D50 Keyboard Bus 004 Device 002: ID 0582:0074 Roland Corp. EDIROL UA-25 Bus 005 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver dmesg | grep Logitech [ 30.470528] logitech-djreceiver 0003:046D:C52B.0004: hiddev0,hidraw1: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.3-2/input2 The cursor does not move. Also the mouse was working in 11.10 and is working in Windows NT 5.1.2600.

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• Optical Character Recognition software recommendations?

  - by Tim

  I have seen some ebooks/papers that were apparently scanned from their paper versions but the text in the ebooks/papers can amazingly be copied out. I suppose the directly-scanned versions must have been processed by some Optical Character Recognition software. So I would like to know what are the recommended Optical Character Recognition softwares? Especially those that are either for Ubuntu or free? If those for Windows are far more superior, please let me know as well. I am particularly interested in those OCRs that can accept a scanned pdf file as input and still produce as output another pdf file that looks the same as the input one but with its text copyable. Thanks and regards! Please limit one software per answer

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• Install Samba 3.0.24 on Ubuntu Server 10.04 from Source

  - by Nilpo

  Has anyone had any luck compiling and installing Samba 3.0.24 on Ubuntu 10.04? I'm trying to set up realtime virus scanning on Samba shares (ClamAV) using the legacy version of Samba as it is the latest release supported by samba-vscan-0.3.6b. I'm no expert at this but I think I have all of the dependencies covered and I'm following the documentation with the source code but I'm getting errors as if there is a problem with the source code. I downloaded the source directly from http://ftp.samba.org/pub/samba/stable/samba-3.0.24.tar.gz After running ./configure and make, I get the following error. Compiling client/mount.cifs.c client/mount.cifs.c: In function ‘main’: client/mount.cifs.c:1068: error: ‘PATH_MAX’ undeclared (first use in this function) client/mount.cifs.c:1068: error: (Each undeclared identifier is reported only once client/mount.cifs.c:1068: error: for each function it appears in.) make: *** [client/mount.cifs.o] Error 1 You can view the full output log here. Can anyone help me get this installed or suggest another means of implementing realtime virus scanning on Samba shares?

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• ubuntu 14 painfully slow on dell r200

  - by sirmonkey

  I didn't notice it at first. The machines (there is 20 plus) are to be used a simple file servers. It wasn't until samba just wouldn't act right that I installed a desktop gui and started more diagnoseing the problem did I catch the slow preformance... I've tested 4 servers they all suck. And windows 7 runs fantastic on them. I have Google and searched. But nothing to explain this. The easy test is dmesg is so slow you can almost read it. I'm guessing it's an apic or cpu power management issue. What output would you all like????? It is a core2 machine with 4Gb of ram. On board data.

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• algorithm to print the digits in the correct order

  - by Aga Waw

  I've been trying to write an algorithm that will print separately the digits from an integer. I have to write it in Pseudocode. I know how to write an algorithm that reverse the digits. digi(n): while n != 0: x = n % 10 n = n // 10 print (x) But I don't know how to write an algorithm to print the digits in the correct order. f.eg. the input is integer 123467 and the output is: 1 2 3 4 6 7 The numbers will be input from the user, and we cannot convert them to a string. I just need help gettin started on writing algorithms. Thanks

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• Using HTML entities in XML Literals (Avner Aharoni)

  One of the common use-cases of XML literals is creating HTML. However, HTML entities cannot be used in XML literals since LINQ to XML directly supports only the Data type definitions (DTD) defined in the XML 1.0 spec. You can read more about it here. The workaround is to use the Unicode representation of the entity, although its not as readable as the HTML entities, the output is the same. Here are two examples of HTML entities from the XHTML spec :   Entity...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Using HTML entities in XML Literals (Avner Aharoni)

  One of the common use-cases of XML literals is creating HTML. However, HTML entities cannot be used in XML literals since LINQ to XML directly supports only the Data type definitions (DTD) defined in the XML 1.0 spec. You can read more about it here. The workaround is to use the Unicode representation of the entity, although its not as readable as the HTML entities, the output is the same. Here are two examples of HTML entities from the XHTML spec :   Entity...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Ripping MP3s in Rhythmbox Ubuntu 12.10 (64 bit)?

  - by James Fellows Yates

  I installed a couple of days ago Ubuntu 12.10 (64 bit). I today tried ripping a CD in the MP3 format. However, whenever I try to rip, it says it is missing an extra multimedia plugin "Gstreamer extra plug-ins (i386)". I then try to install the :i386 version of the gstreamer-ugly plugins, but then I get the same problem but with the id3-demuxer (or something similar) The Terminal output I get from both problems (but replace the "MPEG-1 Layer 3 (MP3) encoder" with the "ID3-demuxer" name) is: james@clefairy:~$ rhythmbox (rhythmbox:24122): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed Rhythmbox-Message: Missing plugin: gstreamer|0.10|rhythmbox|MPEG-1 Layer 3 (MP3) encoder|encoder-audio/mpeg, mpegversion=(int)1, layer=(int)3 /usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed import gobject._gobject It doesn't help that each time I have to install/remove the entire Gstreamer-ugly collection each time - I can't find that specific file. The CD plays fine, it's the ripping plugin that doesn't seem to work. I didn't have this problem previously on 12.04 (64 bit).

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• How to get distinct values from the List&lt;T&gt; with LINQ

  - by Vincent Maverick Durano

  Recently I was working with data from a generic List<T> and one of my objectives is to get the distinct values that is found in the List. Consider that we have this simple class that holds the following properties: public class Product { public string Make { get; set; } public string Model { get; set; } }   Now in the page code behind we will create a list of product by doing the following: private List<Product> GetProducts() { List<Product> products = new List<Product>(); Product p = new Product(); p.Make = "Samsung"; p.Model = "Galaxy S 1"; products.Add(p); p = new Product(); p.Make = "Samsung"; p.Model = "Galaxy S 2"; products.Add(p); p = new Product(); p.Make = "Samsung"; p.Model = "Galaxy Note"; products.Add(p); p = new Product(); p.Make = "Apple"; p.Model = "iPhone 4"; products.Add(p); p = new Product(); p.Make = "Apple"; p.Model = "iPhone 4s"; products.Add(p); p = new Product(); p.Make = "HTC"; p.Model = "Sensation"; products.Add(p); p = new Product(); p.Make = "HTC"; p.Model = "Desire"; products.Add(p); p = new Product(); p.Make = "Nokia"; p.Model = "Some Model"; products.Add(p); p = new Product(); p.Make = "Nokia"; p.Model = "Some Model"; products.Add(p); p = new Product(); p.Make = "Sony Ericsson"; p.Model = "800i"; products.Add(p); p = new Product(); p.Make = "Sony Ericsson"; p.Model = "800i"; products.Add(p); return products; }   And then let’s bind the products to the GridView. protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Gridview1.DataSource = GetProducts(); Gridview1.DataBind(); } }   Running the code will display something like this in the page: Now what I want is to get the distinct row values from the list. So what I did is to use the LINQ Distinct operator and unfortunately it doesn't work. In order for it work is you must use the overload method of the Distinct operator for you to get the desired results. So I’ve added this IEqualityComparer<T> class to compare values: class ProductComparer : IEqualityComparer<Product> { public bool Equals(Product x, Product y) { if (Object.ReferenceEquals(x, y)) return true; if (Object.ReferenceEquals(x, null) || Object.ReferenceEquals(y, null)) return false; return x.Make == y.Make && x.Model == y.Model; } public int GetHashCode(Product product) { if (Object.ReferenceEquals(product, null)) return 0; int hashProductName = product.Make == null ? 0 : product.Make.GetHashCode(); int hashProductCode = product.Model.GetHashCode(); return hashProductName ^ hashProductCode; } }   After that you can then bind the GridView like this: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { Gridview1.DataSource = GetProducts().Distinct(new ProductComparer()); Gridview1.DataBind(); } }   Running the page will give you the desired output below: As you notice, it now eliminates the duplicate rows in the GridView. Now what if we only want to get the distinct values for a certain field. For example I want to get the distinct “Make” values such as Samsung, Apple, HTC, Nokia and Sony Ericsson and populate them to a DropDownList control for filtering purposes. I was hoping the the Distinct operator has an overload that can compare values based on the property value like (GetProducts().Distinct(o => o.PropertyToCompare). But unfortunately it doesn’t provide that overload so what I did as a workaround is to use the GroupBy,Select and First LINQ query operators to achieve what I want. Here’s the code to get the distinct values of a certain field. protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { DropDownList1.DataSource = GetProducts().GroupBy(o => o.Make).Select(o => o.First()); DropDownList1.DataTextField = "Make"; DropDownList1.DataValueField = "Model"; DropDownList1.DataBind(); } } Running the code will display the following output below:   That’s it! I hope someone find this post useful!

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• How to control fan speed and temperatures on Asus A8Js laptop running Ubuntu Server?

  - by Azeworai

  Hi, I have tried installing asusfan and lm-sensors but I'm unable to control my fans to cool my laptop down sufficiently. Currently it overheats at about 100 degrees celsius and my sensors output somehow does not have any fan information on it: jackson@OLYMPIA:~$ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +69.0°C (crit = +110.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +66.0°C (high = +100.0°C, crit = +100.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +66.0°C (high = +100.0°C, crit = +100.0°C) I have checked my bios and there isn't any fan settings there. I can consistently overheat just by converting a video via Handbrake. I have ubuntu-desktop installed for a GUI. Is there a way for me to control my fans to start spinning before it reaches a critical temperature and kills itself?

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• Confused with X.ORG version number

  - by caligula

  There is my trouble: I'm trying to install ATI drivers on my Dell Vostro 3350 laptop. On the AMD's site I followed steps to determine which driver should I use. After selecting what hardware I use I got a link to download amd-driver-installer-12-3-x86.x86_64.run and below was a description of that driver that it was compatible with X.Org version from 6.7 to 7.6. And I do not know what version of X.Org my Ubuntu uses. Cause after googling I found that version is 7.6 in Ubuntu 11.10. But after typing: X -version I got the output: X.Org X Server 1.10.4 Release Date: 2011-08-19 X Protocol Version 11, Revision 0 So what is the exact version of X.Org in Ubuntu 11.10 and how should one reliably determine it? Can anyone construe? Thanks.

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• How to unit test image processing code?

  - by rold2007

  I'm working in image processing (mainly OCR) and I wonder how I should integrate unit tests in my development. I'm already using unit tests for more "common" type of code but when dealing with image processing code I'm not sure how to deal with it. This kind of code always need some image data input/output and mocking this is not obvious. For now I'm mostly doing integration tests but they take a while to run and I would like some ideas on how to break down this kind of code into unit tests so that I can run them more quickly.

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• How to control fan speed and temperatures on Asus A8Js laptop?

  - by Azeworai

  Hi, I have tried installing asusfan and lm-sensors but I'm unable to control my fans to cool my laptop down sufficiently. Currently it overheats at about 100 degrees celsius and my sensors output somehow does not have any fan information on it: jackson@OLYMPIA:~$ sensors acpitz-virtual-0 Adapter: Virtual device temp1: +69.0°C (crit = +110.0°C) coretemp-isa-0000 Adapter: ISA adapter Core 0: +66.0°C (high = +100.0°C, crit = +100.0°C) coretemp-isa-0001 Adapter: ISA adapter Core 1: +66.0°C (high = +100.0°C, crit = +100.0°C) I have checked my bios and there isn't any fan settings there. I can consistently overheat just by converting a video via Handbrake. I have ubuntu-desktop installed for a GUI. Is there a way for me to control my fans to start spinning before it reaches a critical temperature and kills itself?

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• Dual monitor setup with Intel graphics and Nvidia Geforce GT 425M on 12.04

  - by fo_x86

  I have a Dell XPS L401x and just installed 12.04. I have a mini-display and an HDMI output, and I could hook up two Dell UltraSharp monitors to each port on Windows 7, and get a triple monitor setup. Doing a bit of research, it seems like the mini-display is wired to the integrated graphics card whereas HDMI is hooked up to Nvidia graphics card. I've also installed Bumblebee as it seemed like that was the proper way of installing Nvidia drivers on Ubuntu. At the moment none of my monitors is being recognized by Ubuntu. Is it even possible to have a triple monitor (laptop display + 2 external) setup? Has anyone successfully done this?

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• Upgrade to 14.04 broke gsettings

  - by zrneely

  I have a cron job which runs every 30 minutes that changes the background image by running this bash script: #!/bin/bash export DISPLAY=:0 export GSETTINGS_BACKEND=dconf wpdir="/home/username/Pictures/wallpapers/" prefix="file://" file=`ls $wpdir | shuf -n 1` gsettings set org.gnome.desktop.background picture-uri "$prefix$wpdir$file" This worked perfectly until I upgraded to 14.04. Now, running the script produces this output: (process:27459): dconf-WARNING **: failed to commit changes to dconf: Could not connect: Connection refused What can I do to fix this? Google didn't turn up any useful results. EDIT: I noticed that running this does change the background displayed on the lock screen, but it does not affect the desktop background.

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• Sound works for only one user at a time

  - by Patrick

  I've noticed that sound becomes unavailable to me when someone else is logged into my machine and playing music (or has facebook open) in the other account. I've had to ask them to unlock their account and turn it off so I can get sound in my own stuff. Even in sound preferences, the hardware itself disappears and output is "dummy sound". Is there a way to prevent this from happening? What would be really good is if I could turn down the volume (or mute entirely) all the sounds on all other accounts on a per-user basis from my sound preferences without affecting whatever setting they have - essentially saying whenever user A is logged in, all sounds from user B's account are muted and anything from user C's account is at 50% while I can still have my own at full volume.

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• Can't activate "mirror display"

  - by Nemo Peeters

  I have Ubuntu 12.04 on a Dell latitude E6410, I have a problem when using the VGA output I always have dual monitor and can't switch on the "mirror display" toggle under systems setting/displays. It's rather annoying when having to do presentation with a video projector. the option "mirror display" is in light grey and I can"t tick the box. Thanks for those who might have an idea how to resolve this? update: driver is: Intel® Ironlake Mobile x86/MMX/SSE2 card something like this ? description: VGA compatible controller product: Core Processor Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 02 width: 64 bits clock: 33MHz

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• Cannot boot Win7 after updating to ubuntu 11.10

  - by angryInsomniac

  I had a dual boot setup on my system, with ubuntu 11.04 and Win7. Yesterday I updated ubuntu to 11.10. Now , I cannot seem to be able to load Win7 , I do see an entry for it on the boot menu. I select that entry and then the screen goes black , with everything coming to a standstill. I tried to wait for it to respond but nothing happened. I went through the forums and tried "grub-update" but when I do that , nothing really happens. I am not sure of this , but I get no output from grub for upto 10 minutes ( can grub-update be made verbose ) How can I fix this and get back to booting both OS'es properly ?

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• Source Browsing in FireFox

  - by lavanyadeepak

  Source Browsing in FireFox Just casually observed this a few minutes back with my Mozilla Firefox 3.6.3. When you do a view source of any  page in Internet Explorer it just renders as editable inoperative HTML. However in Firefox the hyperlinks are shown clickable and active. When you click on any hyperlink the most obvious and expected output would be that the target page would appear in one of the new tab in the parent browser. However the View Source window refreshed with the HTML source of the new page. I believe this gesture of Firefox would help us to take a journey back into Lynx Text Browsing in a way.

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• You do not appear to be using the NVIDIA X driver

  - by Vishal shekhar

  my laptop has nvidia GT540m yesterday i install nvidia-current after updating fromsudo apt-add-repository ppa:ubuntu-x-swat/x-updates then i write sudo nvidia-xconfig and then reboot my desktop visual effect changes and it look good like nvidia is working but still glx i not working and nvidia-setting tells me that You do not appear to be using the NVIDIA X driver my dkms status is nvidia-current, 304.43, 3.2.0-30-generic-pae, i686: installed lspci |grep VGA output : 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation GF108 [GeForce GT 540M] (rev a1) also i can not login to my admin account but when i login to standard user or guest it works but still NVIDIA X driver is not working can any one suggest something so that NVIDIA X Driver start working as i seen many forum but none worked for me earlier i tried nvidia-173 ,nvidia-current(before x-swat/updates reprository) but none works for me

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• Free LINQPad is a great way to learn LINQ!

  - by CatherineRussell

  LINQPad is a great way to learn LINQ: it comes loaded with 500 examples from the book, C# 4.0 in a Nutshell.  There's no better way to experience the coolness of LINQ and functional programming. LINQPad is more than just a LINQ tool: it's an ergonomic C#/VB scratchpad that instantly executes any C#/VB expression, statement block or program with rich output formatting – the ultimate in dynamic development. Put an end to those hundreds of Visual Studio Console projects cluttering your source folder! Best of all, LINQPad standard edition is free and can run without installation (or with a low-impact setup). The executable is 3MB and is self-updating. To get it, go to: http://www.linqpad.net/

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• Why do Core Data sqlite table columns start with 'Z'?

  - by Dia

  I was looking at the sqlite table that Core Data generates and noticed that all table columns start with 'Z'. I realize this is an implementation detail, but I was curious as to why that's the case and if there was a design decision involved in this. Anyone happen to know or guess why? Here's a sample schema output of Core Data sqlite database: sqlite .schema CREATE TABLE ZPOST ( Z_PK INTEGER PRIMARY KEY, Z_ENT INTEGER, Z_OPT INTEGER, ZPOSTID INTEGER, ZUSER INTEGER, ZCREATEDAT TIMESTAMP, ZTEXT VARCHAR ); CREATE TABLE ZUSER ( Z_PK INTEGER PRIMARY KEY, Z_ENT INTEGER, Z_OPT INTEGER, ZUSERID INTEGER, ZAVATARIMAGEURLSTRING VARCHAR, ZUSERNAME VARCHAR ); CREATE TABLE Z_METADATA (Z_VERSION INTEGER PRIMARY KEY, Z_UUID VARCHAR(255), Z_PLIST BLOB); CREATE TABLE Z_PRIMARYKEY (Z_ENT INTEGER PRIMARY KEY, Z_NAME VARCHAR, Z_SUPER INTEGER, Z_MAX INTEGER);

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• Transferring local site to shared hosting

  - by Pete

  I'm looking to setup a simple online text processing tool similar to the Clang demo. The processing program itself is a C++ program which I can modify to provide the desired output I need. Since I use Linux+Perl daily and have used Apache in the past, I'd like to get this working locally first. My two questions are: Is it possible to do this with only Apache and Perl? I've looked into frameworks for doing this and quickly ran into The Paradox Of Choice. Will I be able to easily transfer a working local site to a shared hosting service? I want to administer as little as possible. My understanding is since this needs to run a C++ program that CGI is a requirement and thus I need to administer the httpd server. Hopefully this doesn't mean a VPS. Thanks

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