Helpmonks Blog
Articles on our products, customer experience, customer service and business growth.


Experiences with the iPhone and Internet Tethering
The last couple of weeks, I have had to use the Internet Tethering function that comes with the iPhone. During the course of this time, I made some interesting experiences that I would like to share. Phone Calls There is one thing I learned the hard way when I enabled…

Nginx error with Tomcat – upstream sent too big header while reading response header from upstream
Nginx is our favorite web server currently as it is fast, lean and easy to configure. Performance is just outstanding and if you haven’t take a look at it. One thing that I noticed while we deployed Nginx with Tomcat is that their default size for the buffers are very…

Setting up Apache2, PHP and MySQL on MacOS X – the easy way
Today I set out to get MySQL and PHP setup on my MacBook Pro. Since Apache2 already comes with MacOS X (mine is Snow Leopard and yours should be too!). Now, the funny thing is that I first searched on the web how to best install PHP and MySQL. Surely,…

SugarCRM: Inbound eMail
SugarCRM is a good open source CRM, but the overwhelming functions and navigation makes it “sometimes” hard to really get to the one thing you want to do. In any case, it does the job well. Apart from that, I just came upon this error message within SugarCRM: Warnings: Inbound Email…

Nginx, Apache, SSL and signed by an unknown certifying authority
We just moved a whole bunch of servers to a new hosting center and moved from CentOS to Ubuntu (server) and Apache to Nginx (more on this in a later blog post). While we migrated mostly everything without problems we were confronted with the problem that our SSL certificate gave…

Syntactically invalid HELO argument(s)
Just been going trough a lot of reconfiguration lately and today finished configuring a new server. While testing the mail function we saw in the mail logs the following lines: javax.mail.MessagingException – 501 Syntactically invalid HELO argument(s) First we thought, it is the application server or sendmail/exim not being properly…

Subversion: Switch to a new location
We just moved some of our subversion repositories to a new server and with it changed the URL’s. Now, in order to change any existing checkout version to grab updates from the new subversion server we issued the simple “switch” command from subversion as in: svn sw svn://svn.domain.com/trunk . The…

Get the latest libraries for CentOS
CentOS, being a “legal copy” of RedHat, as good as it is, comes with some really outdated libraries. This has caused many, including myself, to find way how to bring latest code releases into CentOS. Be it by alternatives repros or compiling the packages. Now, I don’t know how I…

WordPress, PHP error and updating PHP on CentOS 5.x
Mind you, I’m no PHP guru and I only have PHP installed on our server because of our WordPress blogs. that said, I was facing an ugly PHP error today and somehow we could not load the WordPress admin pages anymore of it. The error was: PHP Warning: Module ‘fileinfo’…

Solutions for Oracle ORA-28002 and ORA-27101
Running an Oracle database is great, because it is stable and just runs, but sometimes you are hit with unexpected errors when you restart your machine. Thought, I know Oracle quite well, I’m always surprised at some things. Here are two errors (and solution) I was just confronted with: ORA-27101:…

Impression from Massive Attack Concert
I just got home from a very impressive Massive Attack concert. I have to say that this show totally blew me away. The sound quality, the light show, the paragraphs on the LED wall, the band and all was an extremely uplifting experience. They played, among the older classic song,…

ImageMagick and Ghostscript playing nice with web applications
I had to spent way too much time the last time to set up ImageMagick and Ghostscript together that I simply jump right in so you don’t have to waste time on this, like I did. Creating thumbnails and images from a PDF is one of the most used features…

FFmpeg — here we go again
My two other posts on FFmpeg entitled “Installing ffmpeg on CentOS 5” and “SELinux with ffmpeg” already explained in deep how to get FFmpeg up and running. Unfortunately, today one of our servers just reported a plain: ffmpeg: error while loading shared libraries: libfaad.so.0: cannot open shared object file: No…