September 2009

Dropbox review — the most intuitive online backup storage, data synchronizing and files sharing software

I’ve tried quite a few online backup services to back up my valuable website data — you just can’t imagine what a nightmare it would be to lose all the files that you’ve been working on for the last half year — I even created my own backup programs that automatically syncs and stores designated …

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You can actually use percentage values for padding and margin

Which seems quite new to me as I have never used any percentage values on them before. Took some tests and I found out that all major modern browsers supported percentage values for padding and margin very well, even IE6. This should come very handy in positioning things up according to the parent width. See …

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Linux: How to open and extract an RAR zipped file and unrar the archive?

Funny I should use “zipped” for an RAR compressed package. Anyway, you can easily zip or unzip a zip file or tar compress a package, but how does one do it with an RAR file? WinRAR is well distributed across all Windows systems. But on Linux, you have to first install the command package rar. …

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Best way to hide and cloak your affiliate links?

One may first think of using JavaScript to do this by dynamically changing the windows status bar URL, but unfortunately this trick doesn’t work across Firefox browsers. The truth is the visitor or clicker will eventually find out that they’ve been referred to the affiliate merchant by you from the ultimate landing URL — sometimes …

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scp, rsync: Transfer Files between Remote Servers via SSH

Chances are you have a bunch of different hosts that are housing your website files, for the sake of data safety (never put all eggs in a single basket) and possibly some SEO advantage. If that is the case, you will infrequently come to the need to move some files from one host server to …

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Yet another The Planet dedicated hosting coupon code

The Planet seems to be running quite a series of promotional discounts off their dedicated server hosting plans recently. After the release of this promo code which I can’t possibly find anywhere on their official website now, here’s yet another one for you: bgsv Uppercase won’t work. Just copy and paste the lowercase version. It …

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Linux: Find files changed or modified within xx day or older than xx day

One of the utility commands of Linux that you should know in the first day of your Linux learning seminar is find. To search recursively in the directory somedir for files changed / created / modified within 1 day: find somedir -ctime -1 Or within 5 days: find somedir -ctime -5 To search recursively in …

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MySQL: How to backup ALL databases as root with mysqldump at once?

When you have a VPS or dedicated server to manage, typically you’d have a bunch of different mysql users granted the privileges of every particular database for the sake of security. While this works well in segregating the privileges and preventing hackers from gaining access to all databases upon the compromise of only one mysql …

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Linode Review: From Slicehost to Linode VPS Hosting

I was with RackSpace Cloud Servers which is owned by RackSpace along with Slicehost where my servers are actually placed. So you can also say I’m moving from Slicehost to Linode. However, the fact that I’m leaving them doesn’t mean they are not good. To the opposite, they are absolutely one of the best VPS …

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Linux: Change Directory or CD to the Previous Directory / Last Path

cd is the command in Linux to change the current working directory. While you can change to your home directory by cd ~, you can change to the previous directory or last directory you were in by: cd – Which would come very handy when you are working across multiple directories back and forth. To …

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How to prevent or stop my website and pages from being indexed by search engines?

It’s really weird that one would like to do this but perhaps you are running some private website dedicated to just an intimate group. Anyway, you can stop search engines indexing your web pages by putting a meta tag in the header section of them: <meta name="robots" content="noindex" /> That’s it. Any search engines abiding …

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How to redirect the visitor to another page or website?

This is one of the most common tasks in website development and also one of the most frequently asked question according to some of the keyword research tools. Well, you have 3 ways to achieve a web page redirection. Use PHP header() function to modify and send a HTTP Location header: header("Location: /thankyou.html"); // redirect …

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The Planet Coupon Promo Code for 50% – 70% Off Dedicated Servers

Overture: Apply this Rackspace Cloud promo code to get $25 rebate / refund discount of the Rackspace Cloud managed hosting. Read some reviews of them. Update: I’m very pleased to warn you that this The Planet dedicated server coupon code is so UNIQUE and POWERFUL that it gives an incredible discount on the plan Dual …

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Linux: Check how much disk storage each directory takes up (Disk Usage command – du)

The Linux command du stands for disk usage which is used to check the amount of disk storage any particular directory or file is using. By default, the simple command: du Would return the disk usage in God-knows-what-unit of each of the directories in the current working directory and those beneath them — in a …

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MySQL: How to change or convert MyISAM to InnoDB or vice versa?

After we have discussed the advantages and disadvantages of MyISAM and InnoDB, you might want to convert them back and forth and see the performance differences yourself. For small website, the difference may be minor but for a large popular application, MyISAM tables yield better performance results in selecting data records InnoDB tables give better …

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MySQL Engines: InnoDB vs. MyISAM – A Comparison of Pros and Cons

The 2 major types of table storage engines for MySQL databases are InnoDB and MyISAM. To summarize the differences of features and performance, InnoDB is newer while MyISAM is older. InnoDB is more complex while MyISAM is simpler. InnoDB is more strict in data integrity while MyISAM is loose. InnoDB implements row-level lock for inserting …

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