Linux

Migrating from VMWare to Sun's Virtual Box

Submitted by Falken on

Today I went to start Windows as guest in my Ubuntu install of VMWare and, boom, VMWare has broken itself during one of the prior kernel updates (because it doesn't use DKMS or release patches quickly enough).
There had recently been a good thread on this on the Manchester Linux User Group's mailing list, so I decided to give migrating to something that more sensibly works a go.

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What does AIR application install error "Error# 5100" mean ?

Submitted by Falken on

Sometimes when installing an AIR application, the installer refuses to proceed with the mysterious 'Error# 5100'.
This doesn't appear to be documented anywhere, but it actually means the temporary file space is full (i.e. /tmp/ on Linux).

Guess the 100meg cap on my tmpfs wasn't enough, eh :-)

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Remove 'unverified server' pop up in AIR

Submitted by Falken on

The problem:
Every time some AIR applications start, they give a prompt saying ’trying to connect to an unverified server baz.com (on port 443). Do you trust this server ?’.
Clicking ’always’ (out of 'always', 'this session' and 'never') doesn't work, and it always asks the next time anyway.
 
The solution:
Visit https://baz.com in your web browser, and look at the certificate information for the site (on FireFox, click to the left of the address, then press 'more information').

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Adobe gives AIR as early Christmas present

Submitted by Falken on

Adobe has today released the AIR run time for Linux, bringing full feature parity to the existing Windows and Mac versions and making AIR truly cross platform.

As a Flex developer, I'm far more likely [node:1524,title="to use AIR"] to build any desktop components of applications (or take web applications offline entirely) than just about the only real competition, Java.

Cheers Adobe, an excellent present to go into the Christmas break and next year with !

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Who's rewriting my /etc/nsswitch.conf, eh ?

Submitted by Falken on

First my OpenSuSE machine at work decides to have it, and now I discover the reason why my Kubuntu laptop has been having horrible intermittent DNS resolution problems.
The offending entry in both cases was on the 'hosts:' line and said something like 'mdns4_minimal [NOTFOUND=return]' part away along.
At work, this utterly screwed up any attempt to resolve '.local' DNS names, which just happens to be the recommended way MicroSoft Active Directory is used, so it had to go there.

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Deploying Railo on Tomcat 6 with Apache front end on Linux

Submitted by Falken on

Four easy steps to get the free Railo CFML engine up and running as a J2EE app and linked to a front end Apache.
We'll pretend your application lives in /parth/to/dir/above/web/root/webrootdir this is the DocumentRoot of your Apache and the root (default) context of Tomcat. 

1. Download Tomcat 6 from the nice folks at Apache and install it.
Configure a new Host entry in it's server.xml for your new Apache web root.

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