Friday, February 15th, 2008 | Permalink
Jonas from the maurus.net weblog is writing down some qmail recipies. The first entry is about “Forwarding mail and changing the envelope sender”.
I guess for everyone who is interested in qmail and working with it, there will be some helpful insights.
Wednesday, February 6th, 2008 | Permalink
As I blogged before, I worked with Grails in the past. One thing I didn’t like was the renaming of functions every version. Hopefully this is over now. Today Codehouse released Grails 1.0.
Further informations: Grails website
Tuesday, January 29th, 2008 | Permalink
I nearly got crazy about that sh*t.
The goal was to bring up a tracking pixel to see the movement of single users. For that reason, you’ll need to set a cookie and read it on the page. In my case, the tracking pixel comes from another machine, than the website.
After I generating the p3p file with the ibm p3p generator, I checked and validated that stuff.
Normally that should work right now. It does in Firefox! But it doesn’t in Internet Explorer. After searching around, I found out, that I can also set the P3P stuff via the header, but that’s not all. You’ll have to send it on the site where you set the cookie and even on the page, you receive the cookie.
This is my header:
header ('P3P:CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"');
Good luck!
Wednesday, January 16th, 2008 | Permalink
In the last years, I often had the problem that the system time of a linux server was not correct.
There’s a simple way the sync your internal clock with some of these ultra-correct clocks over the internet.
Just use ntpdate.
#ntpdate SERVERADDRESS
Here is a list with public timservers.
Monday, January 14th, 2008 | Permalink
As the new year begins, I decided not only to report little helpers for problems and starting blogging about software, development and hardware I use everyday.
I wish you all a happy new year 2008.
Friday, January 11th, 2008 | Permalink
If you try to upload something you get “transfer aborted. disk quota exceeded”.
If you bought a webhosting package somewhere, the answer is simple: “You don’t have anymore space left”.
If this happens before the quota is exceeded and you have a root access to that machine, simple use this:
quotacheck -v -c -F vfsold -m /
and restart the quota daemon
/etc/init.d/quota restart
Friday, January 11th, 2008 | Permalink
When I look into blogs these days, I see rumours about the stuff Apple is showing at the Macworld in the next days.
So I decided to post my own rumours.
I think Apple is gonna release Exchange compability to the iPhone. Why? Cause most of the business people are running around with Blackberrys. And what is the key feature here? Reading emails! More detailed, reading business emails, stored on the companys Exchange server. That’s what missing in the iPhone. It’s good for single persons or small companys, but if you like to use it in an Exchange environment, no chance right now.
Apple has, until now, no product that is like Exchange, so that would make sense!?
Saturday, January 5th, 2008 | Permalink
If you like to setup autoaxfr with djbdns, maybe this howto will help you.
First of all, I assume that you have already installed ucspi-tcp and daemontools. If not, look at D.J. Bernsteins Webseite
http://cr.yp.to and install it.
After that, you will have to download autoaxfr and the djbdns Package.
What I’m doing is a basic installation. If you need IPv6 support, watch out, there will be a patch somewhere for djbdns.
Now, add the necessary users:
groupadd dns
useradd -g dns -s /bin/false dnscache
useradd -g dns -s /bin/false tinydns
useradd -g dns -s /bin/false dnslog
useradd -g dns -s /bin/false axfrdns
useradd -g dns -s /bin/false autoaxfr
dnscache
First of all, we install dnscache to 127.0.0.1
dnscache-conf dnscache dnslog /etc/dnscache 127.0.0.1
If you like to distribute dns service to other machines in your network, add a real ip address.
WARNING: You can only use dnscache or tinydns on ONE ip address.
If you need dnscache to resolv domain names for other machines in your network, add the network or every machine by doing this.
touch /etc/dnscache/root/ip/192.168.0
Now it’s time to activate your dnscache.
ln -s /etc/dnscache /service
tinydns
You will need tinydns if you like to play dns server for domains.
First of all, configure it:
tinydns-conf tinydns dnslog /etc/tinydns 212.89.98.32
Use the external ip address, the server should be reachable at.
Now it’s time to setup autoaxfr.
autoaxfr-conf autoaxfr dnslog /etc/autoaxfr
You will now have to edit the file /etc/tinydns/root/Makefile
Replace everything with this:
data.cdb: data
/usr/local/bin/tinydns-data
data: mydata axfrdata
cat $^ > $@
axfrdata: /service/autoaxfr/root/zones/*
sort -u $^ > $@
Don’t forget to add the file mydata & axfrdata:
touch /etc/tinydns/root/axfrdata
touch /etc/tinydns/root/mydata
After every change of data, a secondary dns or whatever, you’ll have to type make in /etc/tinydns/root/
Just automate this with a cronjob.
*/10 * * * * cd /etc/tinydns/root && make > /dev/null 2>&1
Let’s start tinydns and autoaxfr.
ln -s /etc/tinydns /service
ln -s /etc/autoaxfr /service
Goto /etc/autoaxfr/root/slaves.
Add every domain you would like to distribute as secondary dns by adding the domain name as filename and the ip address of the primary dns controller as content in the file.
Example:
vi test.com
123.123.123.133
DONE! That’s the basic.
If you like to play primary dns server you’ll have to install axfrdns.
axfrdns-conf axfrdns dnslog /etc/axfrdns /etc/tinydns 212.89.98.32
Use the same ip address as for tinydns.
Set the servers that are allowed to be secondary dns servers.
cd /etc/axfrdns
vi /etc/axfrdns/tcp
insert to following.
122.22.22.22:allow
:deny
You can restrict that to networks, domains and so on. For that, see the axfrdns manuel from djb.
After you have changed the file, type make.
Start axfrdns.
ln -s /etc/axfrdns /service
Comments, questions, whatever are welcome.
Wednesday, October 10th, 2007 | Permalink
Sometimes, mostly after updating vsftpd ignores to make good connections.
The logfile often looks like this:
[14:21:47] 220 Welcome to BLA FTP service.
[14:21:47] USER foo.com
[14:21:47] 331 Please specify the password.
[14:21:47] PASS
[14:21:47] 230 Login successful.
[14:21:47] SYST
[14:21:47] 500 OOPS: cap_set_proc
[14:21:47] FEAT
[14:21:47] 215 UNIX Type: L8
There’s a simple solution for that just type in: modprobe capability
Hope that’s help!
Tuesday, October 9th, 2007 | Permalink
YES, exactly that! And yes, I’m using wordpress.
The reason, why I say that wordpress sucks is, that everytime I use the wysiwyg editor to post something and then want to change it, it breaks the whole design.
In the past I had to customize a lot of wordpress installations for customers and everyone who ever saw wordpress code, knows what I’m talking about. How about you?