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DDOS

PostPosted: Sun Oct 29, 2006 7:31 pm
by info
Spamgourmet has been subjected to attacks of all sorts for almost as long as it's been around, but most have been inconsequential. For the last couple of months, we've seen the obvious evidence of a distributed denial of service attack in the mail server logs -- hundreds/thousands (or more - hard to tell) of computers are connecting, tying up connections, and at times trying to burn up CPU. In the last few weeks, the attack has intensified significantly in numbers and varied in strategy to become more effective on a per-attack basis. This is resulting in delayed mail. We're working on this one.

PostPosted: Mon Oct 30, 2006 8:57 am
by telakin
Is there anything one could do to help? I donated another 10 $ to at least show some sign of personal support.

Keep up the great work!

PostPosted: Fri Nov 03, 2006 8:39 am
by TerDale
Also ready to give a hand if needed, whatever the way, just let me know.

I couldn't imagine to live without SG, on which I rely for years now, and really one of the best online service I'm using

Thanks again for all your hard work

PostPosted: Fri Nov 03, 2006 9:25 pm
by SysKoll
TerDale wrote:Also ready to give a hand if needed, whatever the way, just let me know.

I couldn't imagine to live without SG, on which I rely for years now, and really one of the best online service I'm using

Thanks again for all your hard work


Thanks, TerDale. It's nice to have positive encouragement. The spammer's DDoS provides negative encouragement, as in "now it's personal". :-)

PostPosted: Sat Nov 04, 2006 12:55 pm
by TerDale
So, anything _we_, service subscribers, can do to help?

PostPosted: Sat Nov 04, 2006 5:37 pm
by SysKoll
Well, we would like to have users from CZ (is it the Czek Republic now?), Brasil and The Netherland to contact ISPs on our behalf. I'd like to write a letter that they'd have to translate and I'll email it to their support.

We already got a volunteer in Israel.

Yes, I know that most ISPs have people speaking English, but I do believe that a letter in their own language has a better chance to be understood.

PostPosted: Sat Nov 04, 2006 9:48 pm
by TerDale
OK, hope you'll get such guys. Scanning the forum memberlist could help, providing they have filled in the "location" field... :?
If something else is possible for residents of other countries, please let us know in this thread

Re: DDOS

PostPosted: Sat Nov 04, 2006 11:53 pm
by fmus
info wrote:For the last couple of months, we've seen the obvious evidence of a distributed denial of service attack in the mail server logs --


Sorry to hear it. Another one for the "no good deed" files.

I guess in a way it's a backhanded compliment, an admission that your service is repugnant to spammers.

Keep the faith, brothers. I'd rather have slow mail than spam mail. :-)

PostPosted: Sun Nov 12, 2006 2:42 pm
by alchemista
any new updates?

any alternatives we can do during this time? I've had a lot of undeliverable mail during the time.

I hope this can get fixed... bast3rds

PostPosted: Sun Nov 12, 2006 4:13 pm
by SysKoll
I worked to alleviate the problem. We are still under attack, but the slow-down is not as severe anymore.

PostPosted: Sun Nov 12, 2006 6:28 pm
by alchemista
SysKoll wrote:I worked to alleviate the problem. We are still under attack, but the slow-down is not as severe anymore.


just block the offending IPs at the firewall level for now, so that the rest of the users can at least use the service. right now the service is basically dead

PostPosted: Mon Nov 13, 2006 4:17 am
by SysKoll
Alchemista,

I have answered you somewhere else. Please don't post about the same topic into different threads and forum, it makes it hard to follow.

A great read about DOS attacks

PostPosted: Mon Mar 12, 2007 1:06 am
by RTrev
If you folks haven't read this old classic yet, you'll probably enjoy it. I believe it was the most popular page on the web at the time Steve Gibson first published it. It's still an eye-opener.

http://www.grc.com/dos/grcdos.htm

BTW, my name is Bob and this is my first post here, so please forgive any errors I may have made in posting. :-)