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Articles indexed in June 2013

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  • Console Errors - Not a Jquery Guru Yet

    - by user2528902
    I am hoping that someone can help me to correct some issues that I am having with a custom script. I took over the management of a site and there seems to be an issue with the following code: /* jQUERY CUSTOM FUNCTION ------------------------------ */ jQuery(document).ready(function($) { $('.ngg-gallery-thumbnail-box').mouseenter(function(){ var elmID = "#"+this.id+" img"; $(elmID).fadeOut(300); }); $('.ngg-gallery-thumbnail-box').mouseleave(function(){ var elmID = "#"+this.id+" img"; $(elmID).fadeIn(300); }); var numbers = $('.ngg-gallery-thumbnail-box').size(); function A(i){ setInterval(function(){autoSlide(i)}, 7000); } A(0); function autoSlide(i) { var numbers = $('.ngg-gallery-thumbnail-box').size(); var elmCls = $("#ref").attr("class"); $(elmCls).fadeIn(300); var randNum = Math.floor((Math.random()*numbers)+1); var elmClass = ".elm"+randNum+" img"; $("#ref").attr("class", elmClass); $(elmClass).fadeOut(300); setInterval(function(){arguments.callee.caller(randNum)}, 7000); } }); The error that I am seeing in the console on Firebug is "TypeError: arguments.callee.caller is not a function. I am just getting started with jQuery and have no idea how to fix this issue. Any assistance with altering the code so that it still works but doesn't throw up all of these errors (if I load the site and let it sit in my browser for 10 minutes I have over 10000 errors in the console) would be greatly appreciated!

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  • Converted some PHP functions to c# but getting different results

    - by Tom Beech
    With a bit of help from people on here, i've converted the following PHP functions to C# - But I get very different results between the two and can't work out where i've gone wrong: PHP: function randomKey($amount) { $keyset = "abcdefghijklmABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $randkey = ""; for ($i=0; $i<$amount; $i++) $randkey .= substr($keyset, rand(0, strlen($keyset)-1), 1); return $randkey; } public static function hashPassword($password) { $salt = self::randomKey(self::SALTLEN); $site = new Sites(); $s = $site->get(); return self::hashSHA1($s->siteseed.$password.$salt.$s->siteseed).$salt; } c# public static string randomKey(int amount) { string keyset = "abcdefghijklmABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; string randkey = string.Empty; Random random = new Random(); for (int i = 0; i < amount; i++) { randkey += keyset.Substring(0, random.Next(2, keyset.Length - 2)); } return randkey; } static string hashPassword(string password) { string salt = randomKey(4); string siteSeed = "6facef08253c4e3a709e17d9ff4ba197"; return CalculateSHA1(siteSeed + password + salt + siteSeed) + siteSeed; } static string CalculateSHA1(string ipString) { SHA1 sha1 = new SHA1CryptoServiceProvider(); byte[] ipBytes = Encoding.Default.GetBytes(ipString.ToCharArray()); byte[] opBytes = sha1.ComputeHash(ipBytes); StringBuilder stringBuilder = new StringBuilder(40); for (int i = 0; i < opBytes.Length; i++) { stringBuilder.Append(opBytes[i].ToString("x2")); } return stringBuilder.ToString(); } EDIT The string 'password' in the PHP function comes out as "d899d91adf31e0b37e7b99c5d2316ed3f6a999443OZl" in the c# it comes out as: "905d25819d950cf73f629fc346c485c819a3094a6facef08253c4e3a709e17d9ff4ba197"

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  • Console in VS 2012 Express for C++?

    - by Live2Code
    I'm very new to programming, so be nice. I was using Eclipse for C/C++ devs for a while, but it seemed quite buggy so I was advised to switch to Visual Studio Express. I'm just testing out with a simple "Hello World" program #include <iostream> #include <string> using namespace std; int main( int argc, char ** argv ) { string response; cout << "Gimme a string: " << flush; cin >> response; cout << "The string is: " << response << endl; system("pause"); return 0; } not much to go wrong there anyway, I noticed that there is no "console" like in Eclipse. All of the text pops up in a little command prompt window. And, also, this window closes right after displaying new text if there is no other things to do after it (like a cin). I have been told that I can use system("pause") but there has to be a better way. In Eclipse, the text would not suddenly disappear because the console window closed. i know this question might be a little confusing, comment and I'll try to explain what I'm saying. Or paste the codes into your Visual Studio 2012 Express Edition. But is there a way to display all of my text and whatever in a "console" as opposed to a command prompt-type window; and why does it always close before I can read the last thing?

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  • chrome extension login security with iframe

    - by Weaver
    I should note, I'm not a chrome extension expert. However, I'm looking for some advice or high level solution to a security concern I have with my chrome extension. I've searched quite a bit but can't seem to find a concrete answer. The situation I have a chrome extension that needs to have the user login to our backend server. However, it was decided for design reasons that the default chrome popup balloon was undesirable. Thus I've used a modal dialog and jquery to make a styled popup that is injected with content scripts. Hence, the popup is injected into the DOM o the page you are visiting. The Problem Everything works, however now that I need to implement login functionality I've noticed a vulnerability: If the site we've injected our popup into knows the password fields ID they could run a script to continuously monitor the password and username field and store that data. Call me paranoid, but I see it as a risk. In fact,I wrote a mockup attack site that can correctly pull the user and password when entered into the given fields. My devised solution I took a look at some other chrome extensions, like Buffer, and noticed what they do is load their popup from their website and, instead, embed an iFrame which contains the popup in it. The popup would interact with the server inside the iframe. My understanding is iframes are subject to same-origin scripting policies as other websites, but I may be mistaken. As such, would doing the same thing be secure? TLDR To simplify, if I embedded an https login form from our server into a given DOM, via a chrome extension, are there security concerns to password sniffing? If this is not the best way to deal with chrome extension logins, do you have suggestions with what is? Perhaps there is a way to declare text fields that javascript can simply not interact with? Not too sure! Thank you so much for your time! I will happily clarify anything required.

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  • How to get distinct values from a column with all its corresponding values in another column

    - by Vishnu
    I know the question is bit confusing. Please read below. I have a table table_categories (id INT(11), cname VARCHAR(25),survey_id INT(11)) I want to retrieve the values for the column cname without duplication, that is distinct values but with all the values in the other column. id cname survey_id -- -------- --------- 1 Trader 2 2 Beginner 2 25 Human 1 26 Human 2 From the above example I want to retrieve distinct cnames with all the values of the survey_id. I don't want to use any programming language. Is there any way by using a single query. Please give me a solution in MySQL.

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  • Web Crawler C# .Net

    - by sora0419
    I'm not sure if this is actually called the web crawler, but this is what I'm trying to do. I'm building a program in visual studio 2010 using C# .Net. I want to find all the urls that has the same first part. Say I have a homepage: www.mywebsite.com, and there are several subpage: /tab1, /tab2, /tab3, etc. Is there a way to get a list of all urls that begins with www.mywebsite.com? So by providing www.mywebsite.com, the program returns www.mywebsite.com/tab1, www.mywebsite.com/tab2, www.mywebsite.com/tab3, etc. ps. I do not know how many total sub pages there are. --edit at 12:04pm-- sorry for the lack of explanation. I want to know how to write a crawler in C# that do the above task. All I know is the main url www.mywebsite.com, and the goal is to find all its sub pages. -- edit at 12:16pm-- Also, there is no links on the main page, the html is basically blank. I just know that the subpages exist, but have no way to link to it except for providing the exact urls.

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  • Convert UTC date to actual date and time

    - by evann
    I have a chart of bitcoin prices. I have the correct prices on the Y-axis, but I cannot get the correct time on the X-axis. The time shows up in a UTC format in my console. I am adding price and date to the series each iteration. I need to get the date of that particular result and find the YEAR, MONTH and DAY of that so I can put it in the right format. Any help is appreciated thanks. $.ajax({ url: "/chart/ajax_get_chart", // the URL of the controller action method dataType: "json", type: "GET", success: function (result) { var result = JSON.parse(result); series = []; for (var i = 0; i < result.length; i++) { tempArray = [parseFloat(result[i]['price'])]; tempDate = Date.parse(result[i]['date']); series.push(tempDate); series.push(tempArray); }

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  • DB2 Select - Replace STATES with two character code

    - by user2528724
    I have a Users Table where it stores city, state and country along with other Users attributes. The states are stored as California, Alabama and so forth. Now I want to retrieve the user information for certain records but the state should get translated to two digit code. Say 'California' should be 'CA'. How should I go about doing this. I was thinking to create a mapping table for state names with there abbreviation and then use some sort of replace function to do it. Any ideas ?

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  • show() progressdialog in asynctask inside fragment

    - by just_user
    I'm trying to display a progressDialog while getting an image from a url to a imageview. When trying to show the progressDialog the parent activity has leaked window... Strange thing is that I have two fragments in the this activity, in the first fragment this exact same way of calling the progressdialog works but when the fragment is replaced and i try to make it again it crashes. This is the asynctask I'm using inside the second fragment with the crash: class SkinPreviewImage extends AsyncTask<Void, Void, Void> { private ProgressDialog progressDialog; @Override protected void onPreExecute() { progressDialog = new ProgressDialog(getActivity()); progressDialog.setMessage("Loading preview..."); if(progressDialog != null) progressDialog.show(); progressDialog.setOnCancelListener(new OnCancelListener() { public void onCancel(DialogInterface arg0) { SkinPreviewImage.this.cancel(true); } }); } @Override protected Void doInBackground(Void... params) { try { URL newurl = new URL(url); Bitmap mIcon_val = BitmapFactory.decodeStream(newurl.openConnection().getInputStream()); skinPreview.setImageBitmap(mIcon_val); } catch (IOException e) { Log.e("SkinStoreDetail", e.getMessage()); } return null; } @Override protected void onPostExecute(Void v) { if(progressDialog != null) progressDialog.dismiss(); } } I've seen a few similar questions but the one closest to solve my problem used a groupactivity for the parent which I'm not using. Any suggestions?

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  • Can't find the error in my javascript code

    - by Olivier
    This js program should display the first 100 prime numbers, but instead it crashes each and every time and I can't find the error! Could someone point me towards the best way to debug js code?! Thank you! // initialisation of the array p holding the first 100 prime numbers var p = []; // set the first prime number to 2 p.push(2); // find the first 100 prime numbers and place them in the array p var i = 3; while (p.length < 100) { var prime = true; loop: for (var item in p){ if (i%item === 0){ prime = false; break loop; } } if (prime) p.push(i); i = i + 2; } // display the first 100 prime numbers found var i=1; for (var item in p){ document.writeln(i,item); i++; }

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  • MinGW screw up with COLORREF and RGB

    - by kjoppy
    I am trying to build a 3rd party open source project using MinGW. One of the dependencies is wxWidgets. When I try to make the project from MSYS I get a compiler error from /MinGW/msys/1.0/local/include/wx-2.8/wx/msw/private.h In function 'COLORREF wxColourToRGB(const wxColour&)': error: cannot convert 'RGB' to 'COLORREF {aka long unsigned in}' in return This is somewhat odd given that, according to Microsoft the RGB macro returns a COLORREF. In fact, looking in H:\MinGW\include I find wingdi.h with the following code #define RGB(r,g,b) ((COLORREF)((BYTE)(r)|((BYTE)(g) << 8)|((BYTE)(b) << 16))) What sort of thing would cause this error? Is there some way I can check to see if COLORREF and RGB are being included from wingdi.h and not somewhere else? Is that even worth checking? Specifications GCC version 4.7.2 wxWidgets version 2.8.12 (I'm new to C++ and MinGW specifically but generally computer and programming literate)

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  • does a ruby on rails rack class get access to the entire rails environment?

    - by Andrew Arrow
    that is when the def call(env) method is invoked by hitting any url, can I inside that method make some ActiveRecord queries, use classes defined in lib, etc. etc. Or is it more like an irb console without the rails env loaded? Another way to put it with a rake task example: task :foo => :environment do # with env end task :foo2 do # without env end I would think rack classes would NOT get the environment so they are super fast and don't take all the overhead of a normal rails request. But that doesn't seem to be the case. I CAN make ActiveRecord queries inside my rack class. So what is the advantage of rack then?

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  • Generate custom marker (icon) out of two images in Leaflet

    - by Rmatt
    In Javascript/CoffeeScript, using Leaflet to display a map, I would like to have custom markers out of a two custom images, and also featuring a shadow for the pin : I want to have a "background" image with a color (or shape) to identify the category On top, I want to have inside this image a specific image (logo) for each pin I didn't find out how I could do that... Setting one image is quite easy but I don't know how to overlay them. I could also consider using a tool to superpose/group/overlay these images (locally ?) before in order to send only one to the Icon Leaflet Class, but also there, I wouldn't know which tool to use. Nevertheless, I still think that a double overlay would be more efficient and that my case could be useful for several people.

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  • How do I take the advantage of the variable column key/value structure of Cassandra

    - by icejade
    If I have to predefine all the columns, how do I take the advantage of the variable column key/value structure of cassandra? If I use update table command, it will insert null for all the rows which don't have that column. This is same as relational DB. For example, for contact column family, I have name, phone, email. I have 100 contacts have all 3 field. Then number 101 contact has skype id which I want to add. If I use insert statement, it won't let me add skypeid since it's not defined in the CF. So I have to run alter statement to change the CF, then all the first 100 contacts will have a null field for each of them.

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  • Add Email addressCollection to, cc, bcc and replytoList

    - by san
    i want to add MailAddressCollection with to,cc,bcc and replytolist of my MailMessage(Net.Mail) my code Like MessageEntity.To.Add(GetMailAddress(TOEmailAddress)); MessageEntity.CC.Add(GetMailAddress(CCEmailAddress)); MessageEntity.Bcc.Add(GetMailAddress(BCCEmailAddress)); MessageEntity.RepltToList.Add(GetMailAddress(ReplyEmailAddress)); private static MailAddressCollection GetMailAddress(List<string> LstMailAddress) { MailAddressCollection MAddressCollection = new MailAddressCollection(); if (MailAddress != null) { foreach (string EmailAddress in MailAddress) { if (IsValidEmailId(EmailAddress)) { MAddressCollection.Add((new MailAddress(EmailAddress))); } } } return MAddressCollection; } It is showing the error cannot convert from 'System.Net.Mail.MailAddressCollection' to 'string' Is it possible to add the EmailAddressCollection to email's to/cc/bcc/ReplyToList? Thanks San

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  • Code Information Indicators in Visual Studio 2013

    - by DigiMortal
    Visual Studio 2013 introduces new code editor enhancement called Code Information Indicators (CII). CII is set of code editor extensions that make it easier to get information about code structure and changes. Also tests and test results can be easily accessible from code editor. In this posting I will introduce you most important new code indicators. Read more from my new blog @ gunnarpeipman.com

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  • APress Deal of the Day 27/Jun/2013 - Pro Windows Phone App Development

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/06/27/apress-deal-of-the-day-27jun2013---pro-windows-phone.aspxToday's $10 Deal of the Day from APress at http://www.apress.com/9781430239369 is Pro Windows Phone App Development"Pro Windows Phone 7 Development helps you unlock the potential of Microsoft's newest mobile platform and updates—NoDo and Mango—to develop visually rich, highly functional applications for the Windows Phone Marketplace."

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  • Rant on EDI

    - by Anthony Trudeau
    Originally posted on: http://geekswithblogs.net/tonyt/archive/2013/06/27/153261.aspxMy post this month is a rant and not something informational. I hope y'all will forgive me.It's been a slow month. I was on vacation with my daughter for the middle part of the month. And the rest of my time has been preparing for a major ERP upgrade, and dealing with a last minute surprise from a customer that has EDI changes.The subject of EDI is my rant. I was tossed into EDI years ago by the same customer. I understood the basic concepts, but not details -- implementation or otherwise. I started with my network including a couple of people with EDI experience. And for one that was all she did. She was my first taste of what seems to be a protected group.I started looking for the standards with a budget in mind, or rather a lack of budget. See whenever someone stone walls you like that it tells me that what they're doing isn't as mystical as they'd like you to believe. Real magic doesn't need to be kept secret. And that is the case with EDI; however, the EDI industry tries to protect it. You cannot even download the standards. They cost thousands of dollars.All this does is ensure that they continue to rack up consulting dollars from their ignorant clients. Well sirs and madams, I put my finger in your eye. I developed my own translator. And while it's not robust enough to resell due to the limited scope of information I could gather. It did save my employer tens if not over a hundred thousand dollars.My public service message, therefore is as follows. Don't be afraid to tackle implementing EDI if you're even a semi-competent developer. You need some experience parsing, familiarity with your business system, and a little patience. Also, pick your VAN well. Don't fall into the trap of thinking that the biggest names are the best choice. That was a costly mistake for us that we are stuck with for a couple more years.

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  • BUILD 2013 Session&ndash;Alive With Activity

    - by Tim Murphy
    Originally posted on: http://geekswithblogs.net/tmurphy/archive/2013/06/27/build-2013-sessionndashalive-with-activity.aspx Live tiles are what really add a ton of value to both Windows 8 and Windows Phone.  As a developer it is important that you leverage this capability in order to make your apps more informative and give your users a reason to keep opening the app to find out details hinted at by tile updates. In this session Kraig Brockschmidt cover a wide array of dos and don’ts for implementing live tiles.  I was actually worried whether I would get much out of this session when Kraig started it off with the fact that his background is in HTML5 based apps which I have little interest in, but the subject almost didn’t come up during his talk.  It focused on things like making sure you have all the right size graphics and implementing all of the tile event handlers.  The session went on to discuss the message format for push notification and implementing lock screen notification and badges. As with the other day 1 sessions it was like drinking from a fire hose, but it was good stuff.  Check it out when they post it on Channel 9. del.icio.us Tags: BUILD 2013,Live Tiles,Windows 8.1

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  • BUILD 2013 Session&ndash;What&rsquo;s New In XAML

    - by Tim Murphy
    Originally posted on: http://geekswithblogs.net/tmurphy/archive/2013/06/27/build-2013-sessionndashwhatrsquos-new-in-xaml.aspx If ever there was a session that you felt like your head was going to explode, this one would do it.  Tim Heuer proceeded to try to fit as many of the changes and additions to XAML as he could in one hour. There were a number of improvements that struck me.  The first was the fact that we no longer need to put stack panels in the AppBar in order to add buttons.  This has been changed to a CommandBar which at the very least makes the markup read more cleanly.  Now if they would just bring this same improvement to Windows Phone we would be set. There was a lot of cheering at the beginning of his talk when he showed that there are now date time pickers.  I understand that it makes life easier, but I just couldn’t get that excited. The couple of features that did grab my attention being able to select a group of tags and then add an encapsulating tag such as a StackPanel around them and the fact that they have optimized XAML so that now runs on average 25% faster. I’d go crazy trying to list off all the improvements and new features so be sure to go and review the recording of the session. del.icio.us Tags: BUILD 2013,XAML,Windows 8.1

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  • BUILD 2013 Session&ndash;Testing Your C# Base Windows Store Apps

    - by Tim Murphy
    Originally posted on: http://geekswithblogs.net/tmurphy/archive/2013/06/27/build-2013-sessionndashtesting-your-c-base-windows-store-apps.aspx Testing an application is not what most people consider fun and the number of situation that need to be tested seems to grow exponentially when building mobile apps.  That is why I found the topic of this session interesting.  When I found out that the speaker, Francis Cheung, was from the Patterns and Practices group I knew I was in the right place.  I have admired that team since I first met Ron Jacobs around 2001.  So what did Francis have to offer? He started off in a rather confusing who’s on first fashion.  It seems that one of his tester was originally supposed to give the talk, but then it was decided that it would be better to have someone who does development present a testing topic.  This didn’t hinder the content of the talk in the least.  He broke the process down in a logical manner that would be straight forward to understand if not implement. Francis hit the main areas we usually think of such as tombstoning, network connectivity and asynchronous code, but he approached them with tools they we may not have thought of until now.  He relied heavily on Fiddler to intercept and change the behavior of network requests. Then there are the areas you might not normal think to check.  This includes localization, accessibility and updating client code to a new version.  These are important aspects of your app that can severely impact how customers feel about your app.  Take the time to view this session and get a new appreciation for testing and where it fits in your development lifecycle. del.icio.us Tags: BUILD 2013,Testing,C#,Windows Store Apps,Fiddler

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  • Configuring HAProxy with memcache with failover

    - by Lawrie Matthews
    I'm configuring a new set of servers for an existing Wordpress site, and it's been requested that memcache be available and made more resilient. The idea proposed is to have HAProxy send requests to one of the two servers; if that memcache instance is inaccessible, then it should switch to the second, but should not switch back to the first if it comes back up unless the second is then unavailable. This doesn't appear to be a particularly common use case and I've not found much along these lines except to possibly set up the first node with an enormous rise value, such as: server server1 10.112.58.16:11211 check inter 5s fall 3 rise 99999999 server server2 10.112.58.19:11211 check backup which falls over as expected when server1 is unavailable. It won't ever fall back to server1, though, even if server2 goes offline. Can this be made to work?

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  • Linux server very slow after IP change and synflood attack

    - by Johannes Ruof
    our server experienced a synflood attack and we used the csf firewall synflood settings to block it. Our server administrators also changed the IP of the server to a new one and blackholed the old IP. The attack went over and I changed the synflood settings back. However the server is still very slow, with a very low CPU usage and very low traffic on the website. Does anybody have an idea what might be causing this? The server is a CENTOS 6.4 x86_64 Thanks in advance, J. Ruof

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  • using munin-plugins-rails to monitor rails app perfromance

    - by user2099762
    I have been trying to configure munin-plugins-rails to monitor the performance of our rails apps from Munin. The graphs appear, but no data is shown in the graphs. The log files show Error output from : 2013/06/27-15:39:06 [5540] Request-log-analyzer, by Willem van Bergen and $ 2013/06/27-15:39:06 [5540] Website: http://railsdoctors.com I have tried running Request-log-analyzer manually and pointing it at the production log file, and this reports as % for every item. There is data in the log file. I have tried changing the version of the gems installed, and also the type of the log file, but no luck. Any ideas anyone? Thanks

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  • Redirect To Domain Before SSL Is Read

    - by Devin Dixon
    I had to switch servers and I want to redirect all SSL urls to the non-ssl site. The problem I am running into is the https site still throws invalid certificate error even through apache has the redirect implemented. <VirtualHost *:443> ServerAdmin [email protected] DocumentRoot /data/sites/www.example.com/main/ RewriteEngine on Redirect 301 / http://www.example.com SSLEngine on SSLCertificateFile /etc/httpd/ssl/www.examplecom/ssl-cert-snakeoil.pem SSLCertificateKeyFile /etc/httpd/ssl/www.example.com/ssl-cert-snakeoil.key ServerName www.example.com ErrorLog "logs/example.com-error_log" CustomLog "logs/example.com-access_log" common </VirtualHost> My question is, how can I do a redirect and avoid the invalid ssl certifcation error in the browser?

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