Bernardo's Tech Blog

I recently designed several web-based software applications  using PHP & MySQL.  Some of the applications allow the user to upload photographs to the web server.  However, it seems many times when I install one of these apps on a new server, I have trouble with the image upload feature.  After several episodes of head-scratching, I’m posting everything I know about the subject here.  Hopefully, it will server as a reminder to me and some assistance to others.

Most of the Linux servers I maintain are running Ubuntu 8.04, so the specific file locations will be geared toward that distribution.

1. Make sure the php5-gd package is installed. That’s pretty basic but can be overlooked(I’m living proof of that). In Ubuntu 8.04 the command to install the appropriate package is:

   sudo apt-get install php5-gd

2. In php.ini (usually in /etc/php5/apache2 or somewhere close), check the following values:
   memory_limit needs to be of sufficient size.
   post_max_size needs to be of sufficient size.
   file_uploads needs to be on
   upload_max_filesize needs to be of sufficient size
3. Make sure the default system temp directory (usually /tmp) is writable by everybody.  This is usually the case by default, but I had this trouble on some physical servers that I had converted to OpenVZ containers.

Good luck!

About a week ago I pulled the plug on my EVNow.org website.  I started the site a few years ago with big dreams of it becoming the place to go for news on alternative energy and electric cars.  Unfortuately, one guy can only do so much in a 24-hour day.  So EVNow is one hobby that had to go.

On the bright side, GreatCove.com is back on its feet.  Last spring I had replaced the home page of the site with a message about going out of business.  At the time I had taken a position with the Fulton County Government.  I am still happily employed there, but I have begun to do some web programming on the side.  No, I am not doing repair and networking, so don’t rush to the phone to call me concerning your virus infested home computer.

Yesterday I stumbled across an article on how to install the beta version of Google Chrome on my Ubuntu 9.10 desktop. The article mentioned using the command line, but I found just downloading the file, double-clicking to open it, and then clicking “Install” did the job just fine.  Nice!

http://linux.com/news/software/applications/31870-get-your-chrome-experience-on-in-linux