Fix 404 pages W3 Total Cache in WP

Why to uninstall W3 Total Cache in WordPress

W3 Total Cache is an amazing cache plugin for WordPress with lots of advanced options. But for small sites on shared hostings, W3TC is overkill, and might be too complex for your needs. And even worse: if you aren't an experienced user, an error in your configuration of W3 Total Cache might slow down the performance of your WordPress based site.

That's why installing W3TC and then uninstalling it after seeing that it isn't worth in terms of performance improvements in low end hostings is not a strange practice (Hyper Cache would be much easier to install, and probably, more appropriate for novice users or just at shared WordPress hostings with limited resources.)

How to fix 404 pages after uninstalling W3 Total Cache in WordPress

A common bug experienced by several users after uninstalling W3 Total Cache is that all pretty urls in all existing WordPress posts now lead to 404 pages with not found errors.

But fortunately, this problem has a pretty easy fix. After following the basic uninstall instructions (and removing all W3TC rules in all .htaccess files) you just need to check that these lines are present in the .htaccess file at your WordPress install folder:

RewriteEngine On
RewriteBase /yourBlogBaseFolderHere/

That should go in the .htaccess file, making sure that you encode it in ANSI format, and just after these lines:

# BEGIN WordPress
<IfModule mod_rewrite.c>

And that should fix any 404 page not found error that you might be experiencing on all your pretty links of previous posts.

Other steps to uninstall W3 Total Cache

Of course, the 404 not found error for a malformed .htaccess file is just a specific bug after uninstalling W3 Total Cache. If you are considering to uninstall this cache on your WordPress blog, I'll suggest you to take a look at these other insightful articles first:

• Best way to delete W3 Total Cache by Scott Andrew McNew
• WordPress support: how to uninstall W3 Cache

If you follow all those steps, you should have your WordPress site up and running again, with no 404 error pages or traces of W3TC at all.

  

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Posted by ESV

Apple and Adobe - infographics

Apple and Adobe (infographics)

(Click the image below to view the full resolution version of the infographics)

Since so much has been said about not having Flash support in the devices of Apple (mainly the Apple iPhone and the iPad) I put together as much facts as possible about Apple, Adobe, the iPhone and Flash, plus some on video codecs including Theora, H.264 and HTML 5 video.

I hope these infographics help you better understand the big picture with the current situation of these technologies and companies.

If you liked it and found it useful, share it!

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Posted by ESV

CSS3 code generator

Automatic CSS3 code generator

Thanks to CSS3 (that is, Cascading Style Sheets in its version 3 of the standard) modern web browsers support lots of advanced effects. Those effects that once required several images or hacks are now available in a few lines of CSS3 code.

The best way to get your hands on CSS3 is to use an automatic CSS3 code generator which could write the CSS3 code for us just by specifying a couple of easy options.

I would suggest you this generator for CSS3 code, as it is very complete and easy to use.

Which effects can be created with the CSS3 code generator?

Using CSS3 code you can create effects like:

• Rounded corners.
• Text or box shadows.
• RGB colors.
• Multiple column layouts.
• Outlines.
• Color gradients.
• etc.

And all this just using a few lines of CSS3 code, with no need of additional images or HTML markup. That is really a big advantage in terms of code maintenance: if you want to update advanced effects of your site, you only need to rewrite a couple of lines of CSS3 code.

Which browsers support CSS3?

CSS3 is the future, and it will be the CSS standard used for all web browsers in a few years. But, by now, only a few web browsers support all CSS3 features.

So it depends on the CSS3 feature chose. But in overall, we could state that Chrome 4.0 and Firefox 3.5 (or better) support the most important CSS3 features.

Opera 10.5 and Safari 10.1 are also other web browsers that support nearly all main CSS3 features as well.

Finally, Internet Explorer 9 has a rather limited support for CSS3 features. So Internet Explorer could be considered the main obstacle to start using CSS3, as it only allows you to use rounded corners and advanced font face selection.

Fortunately, the suggested CSS3 generator would also specify which browsers could use the CSS3 code that was created in an automatic way. That is a very useful feature to be sure about browser version compatibility when using CSS3 effects.

If you want to get serious about the upcoming technologies of CSS3 and HTML5 I would suggest you to read a book on CSS3 and HTML5, and be the first when those technologies fully arrive.

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Posted by ESV

On2Vp8 vs. H.264 (non-free patented codec)

What is the H.264 video codec?

You already know H.264. It is a video codec used in YouTube videos, Blu-ray and lots of other videos with very good quality / compression ratio.

But did you know that such standard created by the MPEG group is not free? Yes, H.264 usages aren't free, as it is a patented software algorithm.

So H.264 has changed from being a great video codec to being one of the obstacles which make difficult having a good, common open source video standard as part of the HTML 5 standard, so that it could be used throughout all web browsers free of additional charge.

The On2 codec alternative

More than 5 years ago, Flash video achieved an extremely good quality / compression ratio using a new proprietary video codec called Sorenson Spark. Thanks to it, some small videos started appearing on our web pages.

But the days of glory of Sorenson quickly ended when the On2 codec (specially, its On2Vp6 version) was released. This is the video codec that has been used on most Flash videos that you can see out there. The amazing part is that On2 allows nearly full screen high quality videos that load in nearly real time using just an average ADSL connection.

Google could make On2 free and open source

The interesting part is that On2 was purchased by Google. And Google owns YouTube, the biggest video site in the world. So Google has a golden chance of making the last version of the On2 codec (On2Vp8) an open source codec. And it could start using it through all its YouTube videos, making it a de facto standard in a blink.

If Google did such open source effort, it would be removing the need to use proprietary technologies from the web video landscape (Flash Player still contains some proprietary pieces of code, and remember that the H.264 codec is not free as it is patented till 2028). That would really lead to a new open video standard. And that would be progress.

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Posted by ESV

Web design e-books in PDF

Good web design e-books available in PDF

If you have some special interest about increasing your skills in web design, website development and web coding, you definitely need to check out this list of useful (and free) web design e-books.

They really cover every interesting topic that a good web developer should know: from web typography to accessibility and usability, including even some freelance business management tips.

This kind of resource, together with the lots of free e-books available, are possibly the best excuses to finally grab a good e-book reader (and, if you were wondering, the answer is yes: the number 1 e-book reader, Amazon's Kindle, already supports native PDF reading).

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Posted by ESV

Error 8001050F PS3

Error 8001050F solved in all PS3

Finally! The in-famous error 8001050F that has prevented many PS3 gamers to play during a whole day has been solved automatically. This trophy sync error that forced many modern PS3 games on the first PS3 models to quit, was a real problem that started on 1st of March 2010 but that should be fixed now, 2nd of March 2010.

Below is the original blog post

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Error 8001050F PlayStation 3

Many PlayStation 3 users have recently been welcomed by the Error 8001050F when trying to connect PSN or play any game.

Surprisingly, this error 8001050F does not happen in the new PS3 Slim, but just in the big, original PlayStation 3 models.

So the error 8001050F in PlayStation 3 is probably making most Sony engineers work agains the clock, as the error is already reported in its official website as being currently fixed.

Error 8001050F at PSN and PS3 trophies, but not at PS3 Slim

This weird PS3 error has nothing to do with the overall network connectivity of the PS3 system, because it happens even when the PlayStation has a working Internet connection. Nevertheless, the error 8001050F prevents from logging in to PlayStation Network (PSN).

But the worst part of error 8001050F is that it doesn't allow to play some PS3 games which could have some kind of DRM or trophies data sync. The PS system will display a message such as "trophy load failed - reboot system". But rebooting your PlayStation 3 won't fix the problem.

Error 8001050F is not solved rebooting PS3 or restarting games

In any case, it is important to warn PlayStation 3 users that such kind of error message about a wrong trophy data load, or trophies out of sync, won't be fixed rebooting the PlayStation system. Restarting games does not fix this this error either.

So the best course of action is to keep as they are the current saved data, as well as any other configuration data stored in the PS3 till Sony finds a patch for this error 8001050F, as well as its related PSN, trophy and game related problems.

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Posted by ESV

How to create and open CBR files

How to create CBR files

Creating .CBR files is very easy. The CBR file extension is just an image container. If we have a set of image files that we want to group in a comic or book format, we only need to:

• Sort alphabetically the images that we want to pack iinto the CBR file. The images will be displayed in their original alphabetical order inside such CBR file. Select all the images and compress them inside a .zip file. You can do so with "right click / send to / ZIP compressed folder". Or even with "right click / add to file", depending on your file compressing utility.
• We need to display the file extension in order to modify it. If your operative system isn't currently displaying your file extensions, in Windows XP just select the menu tools / folder options, tab display, and then uncheck the option Hide extensions for known file types, and click accept.
• Once we have created the .ZIP file and checked the file extensions, just select that compressed file and then we click right click / change name, and then change the extension to CBR (replacing the final .ZIP by a final .CBR, and we are done.

Note: the images inside the containing CBR file need to be in the root of such path. So when compriming all our images together we need to select all the images (but not the folder containing the images) because this could generate a compressed file with a sub-folder of the same name, which could not be read by some specific CBR readers.

How to open CBR files and extract images

To open a CBR file and extract their images we only need to invert the previous process. Just right click the .CBR file and select /open with, and then select WinZip, WinRar or any other software capable of uncompressing our .cbr file (there are several compatible compression software that should handle CBR files). That will open the CBR file and show us all the images that we can extract out of such type of files.

Or, if we have the option to display all file extensions, just change it from CBR to ZIP renaming the file extension, and uncompress the CBR file like any other zipped file.

How to open CBR files in iPhone / iPod Touch.

There is an iPhone APP called MyComics, available just by 2.99€, which will allow us to open and display CBR files, as well as other file formats such as CBZ, PDF, RAR, ZIP.

And if you want to open your CBR files on the go, one of your best choices taking into account a good quality / price ratio could be an Apple iPod touch 8 GB (3rd Generation) NEWEST MODEL (affiliate link - it is a product that we tested and that we loved).

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Posted by Dremin