Archive for the ‘Internet’ Category

*.ru sites are now banned from my emails

Thursday, February 4th, 2010

After banning *.cn sites, it’s high time for the russians to go as well. I am truly sorry innocent russian people who want to email me their website: I no longer accept such emails. Notice that I am taling about websites contained in the email, not email addresses or other stuff ;)

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Where is the spam comming from?

Monday, November 16th, 2009

For a good few weeks or even 2 months now I am getting a lot of “canadian” spam. mainly pills and shit. I was wondering wtf happened when it suddenly hit me. I had a canadian client in the medical area which basically ditched me for whatever reasons, totally unprofessional. Now that I think about it, he might have something to do with this.
And if he does and he has indeed something to do with this, I have only one question: Are you fucking out of your mind?!
I have an idea of a pretty good anti-spam filter for these emails (they all share some stuff but it’s not easy to get it strait out). So in the following 1 or 2 weeks I’ll write it and then, up yours.
I’ll probably make a dnsbl so that others can use it too.

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Twitter down

Saturday, August 15th, 2009

I posted a coiple of blogposts and expected the autotwitter to do its job and since I lunched the alus.ws shortener service and made it use that one instead of tinyurl I figured I shoudl check to see if it posts ok. To my dissapointment, it did not.
So, I wasted about 1 hour going through logs and making tests and all just to see it’s not working. Then, I googled and found out that actually there is (was) some kind of attaack which rendered the twitter site and some others useless.

God I hate hackers.

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Weird IE6 bug

Monday, August 10th, 2009

I don’t use IE if I can help it but my internet banking does so ocne in a while I’m forced to.
Also, I don’t use automatic/windows updates at all. If tehre is some update that I really need, I try to get it manually. So my IE is outdated.
That being said, I noticed quite a while back that it happens that I start a new IE browser and no site will load. I disabled all add-ons and still nothing. However, I noticed that disabling an addon, closing browser,then enabling it back, again closing browser and starting the browser the 3rd time will sometimes make it work.
But this is an annoying workaround and it doesn’t work all the time.
Today I found another workaround: open a second browser window without closing the first one. From all my tries tilll now, this works all the time and is much more nicer and user friendly.

So, whomever is having this issue, I hope it will work for you :)

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[Solved] Problem with (lartc) multiple uplinks

Saturday, July 25th, 2009

as usually, I end up answering my own (painfull, not google-able) problems.
so, I was too concentrated on DNS (that being the only service I actually needed to work right) that I did not bother testing any other services. After doing a lot of rtfm-ing on the linux routing and packet filtering and trying out all sorts of things I decided that until I find a solution, to make the DNS work. long stroy short, I configured my DNS to bind to each interface and it was than when I saw that power dsn can actually change the source address in the packet. So I got DNS working and then I figured I should try another service, http. I did the test without lartc implementation, it behaved as described, packet went out the wrong interface. however, when I implemented the lartc split, it went on the right interface.
So the actual problem was not the lartc but the powerdns. maybe I should log a bug with them.

so for whoever searches for a similar problem: make sure your service is not messing up the packets to begin with. test your setup with a nice playing apache for example and if that works, it’s definitelly your service to blaim.

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Lame attack on IRC Undernet

Tuesday, July 21st, 2009

Somebody must really love me. Just minutes ago they issued a flood-like attack on IRC by sending maybe a few hundred messages from almost as many different nicks/hosts.
This is particularly annoying since I use pidgin as my irc client also used for a bunch of other IM accounts and I had to kill it all until I figured out where the problem was. And they also targeted my egg. Guess they want to make a takeover.
What a wanker. Is that the best you can do? You don’t even worth the effort to install/write an anti-flood script for my psybnc (which stands between pidgin and irc). You are totally lame. That is so 8 year old.

As a side note, I just discovered that my stupid bullshit psybnc did not log in my undernet account for some reason so it got deleted. What some stupid idiots these undernet admins are. Seriously. I’m pretty sure it’s their hand here.

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Stupid spam-fighters [rant]

Thursday, July 16th, 2009

I registered a little while ago on linuxforums.org to post my routing problem.
Imagine what, until I have 15 posts I cannot post any link. Not a problem, but guess what, even a simple thing like “dig domain A” which I need it in my explanation cannot be included because hell, it’s a link.
You stupid idiots, ever heard of false-positives? You’ve got a bunch of them.

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One way spammers send “legitimate” spam

Wednesday, July 15th, 2009

I wrote a full-blown smtp server for one of my clients, with some anti-spam and anti-abuse systems and I was contacted today by him because for some reason the server is sending a lot of spam out.
After some investigation we learned that:
- the spammers are using stolen credit cards to sign up to the paid server and get a user/pass used to authenticat
- since we deemed all paid customers as “good”, spam was getting out
- they quicly learned about the anti-abuse and stopped abusing the system in the obvious way, but still sending spam at the peak level so that the sytem would not pick up the abuse.

Basically, they stop wasting time to buy a domain and hosting and set it up for emailing, they buy directly a nice email account they can use. Cheaper, no time wasted to set it up and easy to ditch.

So, it seems we will be applying spam filters to all messages.

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Live.com/Hotmail bouncing spam

Thursday, July 9th, 2009

How idiot of an admin can you be to not be able to configure your freaking email server NOT to bounce spam? Seriously now, WHY_TF do you bounce spam back at me if I didn’t send it?
If you idiot ever read this page, take a look here: http://www.dontbouncespam.org
and then go shoot yourself. I’ve got like over 50 spam messages bounced to me the other night and those were the ones I didn’t manage to filter out. Because I was like on the clock with these fucking spammers writing email filters rules to block the stupid spam.
And since I know how a legitimate bounce message looks like, I will spend some time to write a new filter that will reject with some not so nice words these spam bounces.
God damn motherfucking spammers. I would love to skin them alive, one by one and the put salt all over their skinless bodies, eventual puring acid on them as well. You hear me? Rott in hell!

Microsoft baouncing spam

Microsoft baouncing spam

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Making Animated GIF Transparent with GIMP

Tuesday, July 7th, 2009

this was taken from here: http://aplawrence.com/Linux/crousegif.html

also, the following is a nice site, however it didn’t do too god on my gif: http://www.gifworks.com/

I successfully applied this tehnique, manually, onace per each frame and the saved with the replace instead of combine.

Copy-paste follows just in case the site goes down (you wouldnb’t believe how many broken links I have in my bookmark. ugly)
—————–
The Gimp: Making Colors in a GIF Transparent
By Crouse
USA Linux Users Group
Web Site: http://www.usalug.org

Sometimes when working with an image you want to make a certain color transparent. When working with a gif file this would make a round circle look round on any color background. This is actually very simple once you do it once. Finding the information for this took me a while so I thought I would pass it on to anyone that was interested.

1. Open your image in the gimp.

2. Right click the image and go to LAYERS then ADD ALPHA CHANNEL. You won’t notice anything happening, but don’t be concerned. It basically adds a transparent layer at the bottom of your image so when we erase the colors…..it’s shows the transparent layer. Which of course would show whatever was under it on the screen.

3. Right click on the image again and go to SELECT and then down to BY COLOR. A window that is all black opens up. Don’t change any of the settings….just use the defaults for now.

4. Now click on the color in the image you want to be transparent. These colors will now show up outlined.

5. Right click on the image again and go to EDIT and then down to CLEAR. This should now erase the outlined color you just picked from the image and the “transparent gimp checkerbox” should show through. This is the Gimps way of showing you that section is now transparent.

6. Right click on the image and choose SAVE AS and make sure to save as a GIF file if you want the transparency to work on the web.

Most of this information was gleaned from this webpage: http://courses.washington.edu/englhtml/engl481/usegimp.html and of course my Gimp Bible and my Essential Gimp books.

Editor’s note: the Washington.edu link above has disappeared. This http://courses.washington.edu/hypertxt/engl282/usegimp.html works as of May 2008.

Another fun feature that can be used while using the SELECT and BY COLOR ….. instead of hitting CLEAR you can FILL W BG COLOR or the other one FILL W FG COLOR ……….. this allows you to change the colors over the entire image instantly for the particular pixel color you choose to start with. Very fast and fun once you figure this out.

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