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• VPS hosting for a social network

  - by Jana

  Hi, I've developed a social network and I've been using shared hosting for that since it was launched. With that I wasn't able to send emails in bulk in cases like "newsletters" and "invitations to join my site". Plus most importantly most of the mails I send ended up in user's SPAM list.I'm planning to move into VPS as it may not have limits added. I'm wondering what's the cheapest VPS host available. I'm not pretty much familiar with Linux commands and seeking cPanel to do the work for me. Will the following configuration suit for a "new" social network like mine which has a less load? 1000Mhz Guaranteed 512MB Guaranteed RAM 20GB (RAID) Disk Space 1000GB/month Bandwidth 2 IP(s) & 5 Backups Semi Managed Thanks in advance

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• Resizing FileReference image then reuploading, only reuploads original image.

  - by pfunc

  I can;t figure out how to do this. Someone selects and image after calling FileReference.browse(). I take that image and make a thumbnail in flash. Then I upload that image like so: var newFileReq:URLRequest = new URLRequest(FILE_UPLOAD_TEMP); newFileReq.contentType = "application/octet-stream"; var fileReqVars:URLVariables = new URLVariables(); fileReqVars.image = myThumbImage; fileReqVars.folder = "Thumbs"; newFileReq.data = fileReqVars; newFileReq.method = URLRequestMethod.POST; //upload the first image fileRef.addEventListener(Event.COMPLETE, onFirstFileUp); fileRef.upload(newFileReq, "Filedata"); All this does it upload the original image. How do I change the fileRef to upload the new thumb? I have traced out the size of the "myThumbImage" and it is correct. I have placed it visually on the stage after creating the thumb, and it seems like it works. But when I upload it to an aspx page (that basically just throws it into a folder), it uploads the original larger image.

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• Is there a best practice for concatenating MP3 Files, adjusting sample rates to match, while preserving original files?

  - by Scott

  Hello overflow community! Does anyone know if there is a "best practice" to concatenate mp3 files to create new files, while preserving the original files? I am working on a CentOS Linux machine, in command line. I will eventually call the command line from a PHP script. I have been doing research and I have come up with a process that I think could work. It combines general advice from different forums, blogs, and sources like this one. So here I go: Create a temporary folder Loop through files to create a new, converted copy, of file into a "raw" format (which one, I don't know. I didn't know "raw" files existed before too long ago. I could use some suggestions on this) Store the path to the temporary files, in the temporary folder, and then loop through the files to concatenate them and then put the new merged file the final "processed directory" Delete the contents of the temporary file with the temporary raw files inside. Convert the final file from "raw" to mp3 and enjoy the finished result I'm thinking that this course of action might be best because I can't necessarily control the quality of the original "source" mp3s. The only other option I could think of would be to create a script that would perform a similar process upon files being added to the system leaving only the files with the "proper" format and removing the original "erroneous" file. Hopefully you can see that I have put some thought into this and that I'm trying to leverage the collective knowledge of this community to choose the best direction. Perhaps there is a better path that I could take? By concatenate, I mean to join together in sequence to create a new audio file from the "concatenated files."

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• Two Applications using the same index file with Hibernate Search

  - by Dominik Obermaier

  Hi, I want to know if it is possible to use the same index file for an entity in two applications. Let me be more specific: We have an online Application with a frondend for the users and an application for the backend tasks (= administrator interface). Both are running on the same JBOSS AS. Both Applications are using the same database, so they are using the same entities. Of course the package names are not the same in both applications for the entities. So this is our usecase: A user should be able to search via the frondend. The user is only allowed to see results which are tagged with "visible". This tagging happens in our admin interface, so the index for the frontend should be updated every time an entity is tagged as "visible" in the backend. Of course both applications do have the same index root folder. In my index folder there are 2 index files: de.x.x.admin.model.Product de.x.x.frondend.model.Product How to "merge" this via Hibernate Search Configuration? I just did not get it via the documentation... Thanks for any help!

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• Why not install Msvcr71.dll into system32?

  - by hillu

  While looking for an authoritative source for the missing Msvcr71.dll that is needed by a few old applications, I stumbled across the MSDN article Redistribution of the shared C runtime component in Visual C++. The advice given to developers is to drop the DLL into the application's directory instead of system32 since DLLs in this directory are considered before the system paths. What can/will go wrong if I (as an administrator, not a developer) decide to take the lazy path and install Msvcr71.dll (and Msvcp71.dll while I'm at it) into the system32 directory (of 32 bit Windows XP or Windows 7 systems) instead of putting a copy in each application's directory? Is there another good solution to provide the applications with the needed DLLs that doesn't involve copying stuff to the application directories? added after first answers: I understand that incompatible API changes may have been made to the mentioned DLLs, but pretty much every mention of incompatibilities I have found using Google had to do with games or video codecs. Right now, I expect that the risk of breakage is pretty small. Am I missing something?

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• How do you organise multiple git repositories?

  - by dbr

  With SVN, I had a single big repository I kept on a server, and checked-out on a few machines. This was a pretty good backup system, and allowed me easily work on any of the machines. I could checkout a specific project, commit and it updated the 'master' project, or I could checkout the entire thing. Now, I have a bunch of git repositories, for various projects, several of which are on github. I also have the SVN repository I mentioned, imported via the git-svn command.. Basically, I like having all my code (not just projects, but random snippets and scripts, some things like my CV, articles I've written, websites I've made and so on) in one big repository I can easily clone onto remote machines, or memory-sticks/harddrives as backup. The problem is, since it's a private repository, and git doesn't allow checking out of a specific folder (that I could push to github as a separate project, but have the changes appear in both the master-repo, and the sub-repos) I could use the git submodule system, but it doesn't act how I want it too (submodules are pointers to other repositories, and don't really contain the actual code, so it's useless for backup) Currently I have a folder of git-repos (for example, ~/code_projects/proj1/.git/ ~/code_projects/proj2/.git/), and after doing changes to proj1 I do git push github, then I copy the files into ~/Documents/code/python/projects/proj1/ and do a single commit (instead of the numerous ones in the individual repos). Then do git push backupdrive1, git push mymemorystick etc So, the question: How do your personal code and projects with git repositories, and keep them synced and backed-up?

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• Need help with PHP URL encoding/decoding

  - by Kenan

  On one page I'm "masking"/encoding URL which is passed to another page, there I decode URL and start file delivering to user. I found some function for encoding/decoding URL's, but sometime encoded URL contains "+" or "/" and decoded link is broken. I must use "folder structure" for link, can not use QueryString! Here is encoding function: $urll = 'SomeUrl.zip'; $key = '123'; $result = ''; for($i=0; $i<strlen($urll); $i++) { $char = substr($urll, $i, 1); $keychar = substr($key, ($i % strlen($key))-1, 1); $char = chr(ord($char)+ord($keychar)); $result.=$char; } $result = urlencode(base64_encode($result)); echo '<a href="/user/download/'.$result.'/">PC</a>'; Here is decoding: $urll = 'segment_3'; //Don't worry for this one its CMS retrieving 3rd "folder" $key = '123'; $resultt = ''; $string = ''; $string = base64_decode(urldecode($urll)); for($i=0; $i<strlen($string); $i++) { $char = substr($string, $i, 1); $keychar = substr($key, ($i % strlen($key))-1, 1); $char = chr(ord($char)-ord($keychar)); $resultt.=$char; } echo '<br />DEC: '. $resultt; So how to encode and decode url. Thanks

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• Open txt files from a directory, compare the values, and output the top 15 in PHP

  - by Anon

  Hello, I recently designed a referral game website for the fun of it. There's a simple MySQL user system with a email verification. It's using the UserCake user management system. On top of this i added a php page that the user could give to "victims" that when they visit it they get "infected" and can infect other users or "victims". This page uses GET to get the username from the url. I have a folder that when a user registers it creates a file with 4 digits and then the username. (ex; 0000Username.txt) All the numbers are the same, it's just so that if a user discovers the folder they won't be able to find the files. There is also a txt file in the same format with IPS in the name. (ex; 0000IPSUsername.txt) The file when visited gets the username from the url, then checks if the text file for that username exists. If the username is present in the url, and a valid user it opens the IPS file and adds the IP of the visitor, then opens the user text file, takes the value and adds one to it, and saves. At the end it makes the difference between saying "You are infected, Username has infected (amount) people." or just you have been infected. Now to what i need! I need to add a hi-scores to the website so people can compete to be the one with the most "infections". I thought i could use readdir to get a list of the files and open them with the value in an array, but i need it to also strip the username from the file name. It would be best if it just saves to a text file like "Username | value" because then i can add echo's of the html tags and have it include the file in the page i want it to be one. Many thanks in advance.

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• Giving writing permissions for IIS user at Windows 2003 Server

  - by Steve

  I am running a website over Windows 2003 Server and IIS6 and I am having problems to write or delete files in some temporary folder obtaining this kind of warmings: Warning: unlink(C:\Inetpub\wwwroot\cakephp\app\tmp\cache\persistent\myapp_cake_core_cake_): Permission denied in C:\Inetpub\wwwroot\cakephp\lib\Cake\Cache\Engine\FileEngine.php on line 254 I went to the tmp directory and at the properties I gave the IIS User the following permissions: Read & Execute List folder Contents Read And it still showing the same warnings. When I am on the properties window, if I click on Advanced the IIS username appears twice. One with Allow type and read & execute permissions and the other with Deny type and Special permissions. My question is: Should I give this user not only the Read & Execute permissions but also this ones?: Create Attributes Create Files/ Write Data Create Folders/ Append Data Delete Subfolders and Files Delete They are available to select if I Click on the edit button over the username. Wouldn't I be opening a security hole if I do this? Otherwise, how can I do to read and delete the files my website uses? Thanks.

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• Reducing CPU load to absolute minimum [on hold]

  - by user191338

  I have had a couple of things gone missing I believe stolen in my shared apartment and want to run my laptop constantly with a webcam attached, running webcam surveillance software to record/ take pictures when motion is sensed. Id like to take whatever steps are necessary to be able to run the laptop constantly without the fan coming on, as its quite loud and even though it will be hidden it can be heard. Thus Id like to know what steps I can take to reduce CPU to the bare minimum for the laptop to boot up and run the camera software and send images via ftp / email when necessary. I have windows 7 installed, though I can reinstall it clean. Which are the windows services can I turn off, and more extreme disabling or measures of whatever kind which I can take. The OS would need to run the camera, wifi / networking. Thanks very much for any help.

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• YUM and RPM crash due to the liblua-5.1 library being missing

  - by A troubled linux newbie.

  I've been playing around with a LiveUsb install of basic Fedora with persistence. I attempted to install moonscript, which requires Lua and LuaRocks. After installing Lua and discovering there were flaws in the install which prevented LuaRocks from working, I used rpm to force Lua off so I could use yum to re-install it. The result was an error of this sort being yielded by both rpm and yum: There was a problem importing one of the Python modules required to run yum. The error leading to this problem was: liblua-5.1.so: cannot open shared object file: No such file or directory I've concluded from this that my Lua version installed a library which both yum and rpm are now connected to. Is there anyway to fix this without reformatting my drive and installing everything from scratch?

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• Installing php(suexec) for Apache

  - by John

  I've got Apache installed and running but how do i install and run PHP as fastcgi so it runs as its own user? here is my apache config: ./configure --prefix=/usr/local/apache2 --enable-rewrite=shared --enable-so --enable-suexec --disable-asis --disable-autoindex --enable-cache --enable-deflate --enable-disk-cache --enable-expires --enable-file-cache --enable-mem-cache --enable-ssl --enable-vhost-alias --with-mpm=prefork --with-port=8080 here is my php config: ./configure prefix=/usr/local/php --without-pear --enable-safe-mode --enable-magic-quotes --with-apxs2=/usr/local/apache2/bin/apxs --disable-cli --disable-cgi --enable-force-cgi-redirect --enable-fastcgi --with-mysql --with-gd --with-jpeg-dir=/usr/lib --with-png-dir=/usr/lib --with-freetype-dir=/usr/lib --enable-calendar --with-curl --enable-mbstring --with-mcrypt

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• Has anyone figured out how to use same username with different passwords (Windows)

  - by Coder

  Tried Googling, tried net use, and anything I could, with no results. I have a PC with users, and I have a network server with shared folders. For some users the usernames of the share and local account match, but the passwords are different (a good security practice). Unfortunately, Windows doesn't want to remap the drives on login, and asks for credentials when I try to connect. If I enter the password, the connection succeeds, but it still fails on next login, even if I have checked the "remember" checkbox. On PC: usera@machinea pass1 On NAS: usera@nas pass2 net use z: \\nasip\usera /user:nasip\usera pass2 /persistent:yes Credential store seems to have the user credentials stored... But the mapping fails all the time.

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• How to use 2 or more internet connections on the same network?

  - by Rogue

  Living in a joint family we have 3 internet connections, each floor has one internet connection which is split per floor. Each internet connection is shared between 4-5 computers using a switch per floor. Each of these internet sharing networks are independent of each other. What I want to achieve here is a local network (for local messenger and file sharing) that can combine all the 3 independent networks, problem is that whenever I try to do that the whole network tends to use just one internet connection. I have all the necessary hardware. How do I solve this problem, one approach could be that I could get one PC to act as a server and bridge the internet connections and then the whole network would have to access the internet through this server. Theoretically this could be possible but I have never tried this approach in real life. Also if certain computers need be restricted from internet access how would this be possible on the same network?

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• Am I using too much memory? (Rails on EC2 with Resque)

  - by Stpn

  I am looking at the memory usage of the Rails application (it uses background processes via Resque) and since the common answer to the question, "how many workers is too many" was "test and see", I ran some memory commands and wonder if someone can help figuring if the memory usage is high enough already, or I can still add some extra workers.. so (this is all under the maximum load): $ free -t -m total used free shared buffers cached Mem: 1756 1532 223 0 12 229 -/+ buffers/cache: 1291 464 Swap: 895 10 885 Total: 2652 1543 1108 $ vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 10588 156172 13400 326476 1 6 4 0 5 4 1 0 99 0 If there is any extra info I can provide to help answer this, I would be happy to do so. If the question is strange in some way, please let me know I'd be glad to fix etc..

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• How do I solve the .NET CF exception "Can't find PInvoke DLL"?

  - by Ignas Limanauskas

  This is to all the C# gurus. I have been banging my head on this for some time already, tried all kinds of advice on the net with no avail. The action is happening in Windows Mobile 5.0. I have a DLL named MyDll.dll. In the MyDll.h I have: extern "C" __declspec(dllexport) int MyDllFunction(int one, int two); The definition of MyDllFunction in MyDll.cpp is: int MyDllFunction(int one, int two) { return one + two; } The C# class contains the following declaration: [DllImport("MyDll.dll")] extern public static int MyDllFunction(int one, int two); In the same class I am calling MyDllFunction the following way: int res = MyDllFunction(10, 10); And this is where the bloody thing keeps giving me "Can't find PInvoke DLL 'MyDll.dll'". I have verified that I can actually do the PInvoke on system calls, such as "GetAsyncKeyState(1)", declared as: [DllImport("coredll.dll")] protected static extern short GetAsyncKeyState(int vKey); The MyDll.dll is in the same folder as the executable, and I have also tried putting it into the /Windows folder with no changes nor success. Any advice or solutions are greatly appreciated.

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• Standalone server setup for compute capacity

  - by mikera

  I'm developing an application for my company that will require a lot of compute capacity (running some very big mathematical calculations), and looking for some form of server setup to do this. For various reasons, we want to run this on-site in our office rather than hosting it externally. It's been a while since I last had to set up my own servers so I thought I would tap into the collective wisdom of serverfault! My broad requirements are: Budget $30-50k, with an aim to get as much compute capacity as possible for that budget 64-bit servers suitable to run Ubuntu Linux + Java Some relatively standalone rack that can be installed in secure office space Fast/low latency network connections between the servers, but don't really care about connectivity to the outside world Storage capacity shared between the servers - they don't necessarily need their own storage providing they can be booted from a common image Downtime can be tolerated (since the calculations are run in batch mode) The software itself is fault-tolerant, so there is no need for extra resiliency in the server setup (cheap replaceable commodity parts will be fine in general) Given these requirements what kind of setup would you recommend and why?

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• Sort command not working as expected

  - by user964689

  If anybody can help me to write a loop to iterate over files in a folder it would save me a huge amount of time. I think it must be quite a simple solution ,but I currently don't know how to nest a loop within a loop. So far I have this script: cd /folderlocation/ for i in `</textfile_containing_lines_to_iterate_through` do #size=`echo $i | perl -nE '/:([\d-]+)/ && say abs(eval $1)'` #echo "$size" zcat dataset | head -n 18 > temp"$i".vcf tabix dataset $i >> temp"$i".vcf vcftools --window-pi 1000000 --vcf temp10individuals"$i".vcf >> run_summary.txt cat out.windowed.pi >> outputfile_2 #rm temp* done grep -v "PI" outputfile_2 > outputfile rm outputfile_2 I need to expand this so that the script will run multiple times, through all of the 'textfiles_containing_lines_to_iterate_through'. Currently I change the name of the textfile manually each time and re-run the script. So I'd need a loop that does this for file in folder, and also that uses the name of the file as part of the outputfile name so that I can match an output file to an inputfile. Any help would be really useful and greatly appreciated! Many thanks in advance.

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• windows cache not working as it should?

  - by piotrektt

  I run windows 2012 server with data center. The setup is with 60GB of RAM. I have one file shared on VHD and when I copy this file locally the RAM cache is all used up but when multiple computers connect to the share it the cache is not used. The network is 8Gb. The whole network is around 200 computers that need to read that one file but on this setup only 10 connection kills the server. Is there any way to check what is going on? What other solution can I use to manage cache in windows?

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• Mcafee Auto-update from UNC path problem

  - by Vicky

  I have a network with 50 computers with no internet access. So instead of updating in each of them using dat file individually I tried to create a shared folder in server, and created a UNC in site repository. I downloaded the file DAT Package For Use with Mcafee AutoUpdate Architect & ePO 3.0 from http://www.mcafee.com/apps/downloads/security-updates/security-updates.aspx. When I try to update it is giving an error Error occurred while downloading file SiteStat.xml. So how fix it?

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• Monitor or log directory permission changes?

  - by Myles

  I'm having an issue with a cPanel shared server running CentOS 5 where a few directories under the public_html folder keep getting changed to 777 from 755. The customer says they are not changing it and i'm wondering if there is a way to monitor these specific directories to find out who/what is changing the permissions. I have looked into using auditctl and after testing it and changing the permissions myself I don't see anything in the logs so i'm not sure if i'm doing it right or if it's even possible. Does anybody have any suggestions or ideas on how I could figure out what is changing the permissions? Thanks!!

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• HTTP Redirect from www.mydomain.com to my amazon ec2 account (instance)?

  - by fabius

  Hello! I have a domain, that is registered at a service provider but my site (wordpress blog) is hosted in a shared account with a friend in another other host service. I want to become seperate from this friend because I'm tired of boring him with my blog downtimes. Now, my problem is that I signed up to Amazon EC2 service and I created a instance (a virtual machine) to host my wordpress blog and now I'd like to redirect mydomain.com to this instance at Amazon EC2 and I don't know how to proceed in order to achieve that. The instance at Amazon EC2 is up and running (it's a 64bit linux machine) but I couldn't redirect mydomain.com to this instance at my host service webpanel. Could someone help me please???

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• Lots of files being used by blank web page. What are they?

  - by byronyasgur

  I am trying to optimise a website and I was using the network waterfall facility in Google Chrome. When I looked at the results there were lots of files which I didnt recognise. I first thought they might be something to do with Google Chrome itself, so I put a blank HTML file on my desktop and checked but there was nothing in the waterfall except the file itself. So I put a blank file on my server and I got the output below. What are all these files, are they all necessary, is this normal and do I need to be in any way concerned. My hosting provider has always been excellent in every regard that I'm aware of. My host is shared hosting, using cpanel and is based on a LAMP server. I also note that a couple of those file have problems but I have no idea how to fault find that or whether it's a concern. EDIT: I have cleared the cache so I don't think it's a browser cache issue.

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• Why can I not access any file or directory created by PHP from FTP-client?

  - by user43053

  Hello there, If I create a directory with mkdir(), or create a file with fopen(), file_put_contents() or SimpleXMLElement::asXML(), I am unable to access the file with my FTP-client or c-Panel File Manager. If I try to delete or edit them, I get errors. Dreamweaver suggests it is a permission problem or a network or filesystem fault (but I've set the permissions with chmod() to 0777, and when I check the cPanel, it confirms chmod 777. I also tried to use fileowner() and the function returns int(99), the same owner as those files that I could access with my FTP-client. It seems files and directories created with PHP can only be modified or be deleted with PHP. I thought this must be a server setup related issue, so I write it here. I am on a shared server, and I have no idea about setting up servers. Thank you for your time. Kind regards Marius

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• Security considerations for my first eStore.

  - by Rohit

  I have a website through which I am going to sell few products. It is hosted on a simple shared-hosting and does not have SSL. On the products page, each product has a Buy Now button created from my PayPal Merchant account. PayPal recommends to use it's Button Factory to create secure buttons and save it inside PayPal itself. I have followed the same advice and the code of any button is secure and does not disclose any information on either a product or it's price. When the user clicks on a Buy Now button, he/she is taken to PayPal site where a page is opened in SSL for the user to fill in the credit card and shipping details. After a successful transaction, the control is passed back to my site. I want to know whether there is still any chance when security could be compromised.

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