MKUDROs Log

Mkudros IP Blacklist.

Apr

2013

Access logs are scanned for failed login attempts and those IPs go straight to my black list. As well as “spammers” – IPs that leave spam replies on my blog posts. In this list i didn’t made any separation between “attackers” (more serious) and “spammer” (less serious). But i’m thinking to make that differentiation in ...

Protect WordPress from “bruteforcers”.

Apr

2013

Following article is not for you if you do allow everyone to register onto your site. Just a few days ago i have read a news article covering latest increase in ddos attacks on dutch banking sites. Article also mentioned that not just banking world saw increase in hack attempts but ordinary people with their ...

Does you ISP blocks port 25??? Mine does!!! Postfix, port 587, relay.

Jan

2013

Last year contractors came and dug up whole street where my father lives to make space for car parking slots. They have narrowed down sidewalks so cars could park on the side of the street, leaving enough space for ambulances or firetrucks to pass through when and if needed….. If you live in USA you ...

Removing “Lost your password?” and “Back to…” links from wordpress login page.

Jan

2013

Imagine you need to lock down your wordpress site and make it inaccessible for anyone but registered users. Think of the situation of big family scattered around globe, and everyone wants to see pictures of you babies and hear what else is up…. And no – Facebook is not an option. And since you are ...

Fedora laptop and Eexternal monitor saga. Kscreen.

Jan

2013

If you are using Linux laptop as yours, one and only, computing source then at some point you would have tried to hook it up with your huge external monitor to make all those computing activities more enjoyable. Lets face it, laptops are very useful machines, that i for one can’t live without, but noting ...

Anaconda and yum errors: Peer cert cannot be verified….What???

Dec

2012

My father asked me if i could replace his (really) rusty PC with something more “recent”, that wouldn’t require hourly reboots (windows XP – hehe). I had fairly new motherboard (ASUS E35M1-M) laying around, and specs of this motherboard would suffice majority of home computer users. So i went ahead and built a small PC ...

Squeezing most out of the RAM.

Dec

2012

I love how linux system utilizes memory, trying to push processes into ram as much as possible so not a single page of our valuable ram would be waisted. But i was wrestling with idea to squeeze out of my laptops 8G ram even more then my Fedora17 intended. First what i did is moved ...

Firefox mailto handling – Kmail.

May

2012

If you are using KDE4 and Firefox as you primary browser you would notice that Firefox doesn’t handle mailto links through Kmail. Take a look in Firefox Preferences -> Applications -> mailto you will see that call is handled by kmailservice by default. Kmailservice, at least on Fedora, is provided by kdelibs3, it is not ...

WordPress site content – logged-in users only!

Apr

2012

There are few ways to protect files in wp-content/uploads directory. Best i know so far is to do it using mod_rewrite rules (don’t you love apache???). I let apache check for cookies wordpress stores on users computers when user is logged in. Basically what we are telling apache to do is before serving wp-content/uploads content ...

KVM on Archlinux.

Apr

2012

Installation. Edit /etc/rc.conf adding kvm and kvm-intel modules to hardware section and libvirtd to daemons: Make sure that libvirtd is placed after dbus and avahi daemons.