In my case it’s line 84:

APACHE_MODULES="actions alias auth_basic authn_file authz_host authz_groupfile authz_default authz_user authn_dbm autoindex cgi dir env expires include log_config mime negotiation setenvif ssl userdir php5 perl python suexec"

This is telling the apache which modules have to loaded, as you can see there is nothing like rewrite.
Edit this line:

APACHE_MODULES="rewrite actions alias auth_basic authn_file authz_host authz_groupfile authz_default authz_user authn_dbm autoindex cgi dir env expires include log_config mime negotiation setenvif ssl userdir php5 perl python suexec"

Restart apache with:
/etc/init.d/apache2 restart
And it works.

Google Analytics is free of charge. On big problem for commercial sites is that the collected data is owned by Google and the “terms and conditions” can be change quickly to use these data for their own needs.

Okay back to the main topic. A friend of mine told me about Woopra and I decided to sign up for the beta test. Woopra is free of charge right now. After the signup you’ll have to wait until the guys from Woopra decided to give you access. In my case, this took two weeks.
After you’re enabled for Woopra, you have to install a javascript in your website.
The cool thing behind Woopra is the Java application you can download from their page. Sadly you’ll need java 1.6 which kicks out nearly all the Mac OS X guys, because Java 1.6 is only availible to 64bit users, which means only Mac Pro users are supported.
After installing the java application you have a wonderful, flash look-like, interface.

The best thing, you can see your users in real time. You can see, which site they are looking at, how long they have been there, where they came from (website and city/country) and a lot more.
The killer feature here is that woopra enables you to chat to current visitors on your website.
You can choose a user, click on “talk to this user” and get a chat window to talk to them.

At the end, Woopra is nice for small sites and blogs. I guess big business sites will not get the data they need and should use things like Indextools.

Btw. I think Woopra ROCKS!

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

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

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.

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Guess what!?
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