free-software tutorial, tips and projects
I intended to write this post couple of months ago, when I worked on a pull based MVC framework for some site. Most web-developers are acquainted with the MVC architecture and almost all the major web-frameworks uses this concept, including Ruby on Rails, CakePHP, Django, Symfony and others. So what is MVC and what’s the difference between pull and push?
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About a week ago, I’ve decided to look at the HTML source of my blog. I was in total shock to find a spam link hidden there. This is how it looked:
<!-- ocadia theme credits, downloaded from wpthemesfree.com --> <u id="ocadia" style="display: none">Buy some <a href="http://detoxbuddy.com/categories/191.html">marijuana drug testing</a> products</u>
Ocadia is the name of theme I’m using, so I guessed the hidden link came from there. I was partially right. The code indeed resided in the index.php file of the theme, but as I later found out, the theme had nothing to do with that. I removed link and the comment immediately, and went to see if the it was distributed this way from Beccary (the author of the theme.
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I’ve been using Guarddog as a GUI for iptables for some time. I’ve configured it to allow to connect to samba network shares but for some reason it won’t allowed me connect to the shares without the disabling the firewall first. The blockage happened despite the proper configuration in Guarddog. So today I decided to look again at the problem and fix it.
After inspecting the output of ‘dmesg’ I found out that it tries to connect to 192.168.2.255 (192.168.2.* is my network), which is the broadcast address for the network. I tried enabling connection to the address and to my surprise this fixed the problem. I guess samba for some reason requires access for the broadcast for some name/address lookup of hosts in the network.