Dirk-Jan's log (Page 5)

Fireplay for Firefly

[https://vleeuwen.net/wp-content/uploads/2009/06/fireplay.png]Lately I stumbled upon a extension for the well known media server Firefly [http://www.fireflymediaserver.org] called Fireplay. It’s a easy to use flash based music player interface for Firefly which uses RSP (Roku Server Protocol). The player is

Linux

Wireless fix on Amilo running Ubuntu

Recently I had to use a laptop for a course I was doing. This Fujisu Siemens Amilo Li 2727 laptop came with Windows Vista pre-installed. Since the installed OS didn’t matter for the course I installed the latest Ubuntu which is 9.04 (Jaunty). All worked well except for

Cisco

Cisco doing secure SNMP

Version 3 of the Simple Network Management Protocol (SNMP) is developed with as main purpose securing the insecure SNMP protocol. Since I needed to setup SNMP for a monitoring tool I decided to do it the secure way, which is SNMP v3. This article will describe how to configure SNMPv3

Oracle

Delete rows from table where date

If you need to get rid of some table rows, in my case a Sun IDM logging table, you can use the following steps. 1. Create a backup in case you have done some thing wrong u can always revert back. create table waveset.log_backup as select * from waveset.

HTTP

Testing HTTPS

In order to test a HTTP connection and response you are probably already familiar with telnet to do a HTTP GET request against port 80. However it’s not possible to use the same technique for testing a webserver response on port 443 (SSL), as you can see below. $ telnet

Ubuntu

How to find your Ubuntu release

There are several ways to find out which release of Ubuntu you’re using. But the most easy way is to make use of the lsb_release (LSB stands for Linux Standard Base) command which pulls it’s info from ‘/etc/lsb-release’. This is a command line utility, so you’

iPhone

Thunderbird MIME mixup

Today I decided it was time to introduce my iPhone to the campus wireless network, instead of using the slow GPRS network of my carrier. I’m still a happy user of the first generation iPhone, so I’m stuck with GPRS and that’s why I like WIFI. So

877W

877W wireless config

As mentioned earlier I would post my wireless configuration of the Cisco 877W router as soon as I got it to work the way I like. In this setup the commonly used IRB bridge option is not used. This configuration will also work on the 857W model. ! dot11 ssid vlan

Limit Wordpress archives

Since switched over to a new theme I needed to rearrange the way the sidebar should look. The list of archives was just to long, think 20 months is the default, to be aesthetic correct. So I started to look for a limit setting in de admin interface of WordPress,

Debian

Gallery2 and Lenny

During the upgrade from Etch to Lenny I was surprised that the Gallery2 package was not available for the current stable release of Debian. At first it was no problem, but the Gallery2 package of old stable Etch is to old for the most recent WPG2 plug-in for WordPress, so

877W

New ISP, new router

Recently I had to choose another ISP for my home internet connection, and because my previous modem was a bit limited in it’s capabilities I decided it was time to invest in a Cisco 877W Integrated Services Router. The main reason to choose for the 877W is that I

Avahi

Setup Firefly to serve iTunes

[https://vleeuwen.net/wp-content/uploads/2009/06/firefly.png]This guide will help you setup Firefly Media Server [http://www.fireflymediaserver.org/] to serve iTunes. This server based program, previously known as “mt-daapd” shares your media collection to iTunes. DAAP stands for Digital Audio Access Protocol and is developed by

cyrus

Ipurge

No, it’s not another Apple app, it’s an handy tool that comes with the Cyrus mailserver package to delete mail from IMAP mailboxes. I have setup two entries to get rid of unnecessary messages from the spam and trash folders for all users. The following rules have been

Oracle

Oracle RAC connect string for JDBC

For a Tomcat installation I needed to connect to a Oracle RAC database backend. I figured out the correct connection string, shown below: jdbcUrl="jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac01)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=rac02)(PORT=1521))(LOAD_BALANCE=on)(FAILOVER=on)(CONNECT_DATA=

CAcert

Secured by CAcert

In oder to secure this personal website I have recently joined the CAcert [http://www.cacert.org] community. This community driven certificate authority issues free public key certificates. After signing up I created two server certificates, one for the webserver and the other one for secure mail and ldap services.

Oracle

tracing SQL in Oracle

If you want to know what SQL statements are actually being executed by an application because something goes wrong and there is no clear error message explaining what’s happening you can use SQL Trace. SQL Trace can be enabled on the current session, the session of another user or

Fedora

Persistent route in Fedora

Today I had to add a static-route on a Fedora 10 workstation to gain access to a web application. Because it needs to be persistent, survive reboots, I wanted to configure the static-route the way Fedora (Red Hat) likes it. The script ‘/etc/sysconfig/network-scripts/ifup-routes’ is responsible for setting

ixhash

iXhash does a good job

Some weeks ago I installed the iXhash [http://ixhash.sourceforge.net/] spamassassin plugin and the spamtagging became noticeable better. Just look at the spam stats [https://vleeuwen.net/stats] page. What is does is it creates md5 checksums of parts of the body of an email and compares them to

Sendmail

Sendmail and Realtime Blackhole lists

I’ve just updated my sendmail.mc with some RBL’s checks (dnsrbl feature) which is working out quite well. By using Sendmail with dnsrbl checks instead of a anti-spam program such as Mailscanner which also uses the same RBL mechanism you take the advantage of Sendmail dropping the connection

Spam

Yiha! Spam graphs!

To keep track of all unsolicited mail my mail server recieves daily I came across a nice Spamassassin plugin called Stats Plugin [http://wiki.apache.org/spamassassin/StatsPlugin]. This plugin dumps realtime Spamassassin statistics (mail,spam,ham) into a MySQL table from which you can easily create graphs with Cacti.

Diesel more expensive than benzin!

I found this a very funny sign, so I had to take a picture (click on it to enlarge). This was in Austria actually. 46983

Linux

Enlarging the size of a striped LV

Since there were not enough free PPs available within the VG to extend our fast growing LV we had to increase disk space and extend this LV, but this was a little different from the usual manner because of this LV was a striped one. At first we thought we

Eduroam

Eduroam on the iPhone at SARA

This is how I configured my iPhone to connect to Eduroam 802.1x at SARA. Download and install the Apple iPhone Configuration Utility. You can find this utility on the Apple support pages. Download the following certificates SURFnet-PCA-Root-CA [http://ca.surfnet.nl:4470/SURFnet-PCA-Root-CA.der] and SARA-KA (check the Active

Debian

PE1950 installation hassle

Installing debian etch (40r4a) on a Dell PowerEdege 1950 with SAS disks was not to easy. Debian crashed the fist reboot after the install, because of not loading or finding the correct module in initrd. The second issuse was swaping the drive from sdb to sda. This is how I

Off the beaten track!! (en nu weer helaas bijna in NL :-(

Heeeey allemaal, Ten eerste allen gecondoleerd met t verlies van NL, helaas maar Turkey was dit EK toch echt WEER beter, totdat de Moffen ons feessie vandaag moesten verpesten. Volgens mij werden ze gewoon gek van al die toeterende Turken door de straten. (Eerlijk gezegd geen enkele wedstrijd gekeken, alleen