spamcheetah internals
DESCRIPTION
SpamCheetah is an OpenBSD greylist + tarpit + blacklist spam filter. It does not even allow spam to get in. This talk shows your the internal workings as well as some ideas about the business model of the parent company Gayatri HitechTRANSCRIPT
![Page 1: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/1.jpg)
SpamCheetah - revolution in spamcontrol
OpenBSD greylisting based spam control
Girish Venkatachalam
Chennai
October 30, 2009
![Page 2: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/2.jpg)
What is SpamCheetah?
Not greylisting alone, very different fromtraditional meaning of greylisting
The tarpit does not even allow spam to enter yournetwork, protect your network resources from dirtyspammers!
Revolution in spam control
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 3: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/3.jpg)
What is SpamCheetah?
Not greylisting alone, very different from traditionalmeaning of greylisting
The tarpit does not even allow spam to enter yournetwork, protect your network resources from dirtyspammers!
Revolution in spam control
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 4: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/4.jpg)
What is SpamCheetah?
Not greylisting alone, very different from traditionalmeaning of greylisting
The tarpit does not even allow spam to enter yournetwork, protect your network resources from dirtyspammers!
Revolution in spam control
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 5: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/5.jpg)
Why is spam control so important?
E-mail the most important application on theInternet
Every mail server needs a spam filtering engine
But I don’t like the term ”spam filter”. I callSpamCheetah as a spam blocker or spam controlapplication
Massive worldwide market with huge potential
This talk speaks about the technical aspects ofSpamCheetah and how it does its job so well
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 6: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/6.jpg)
Why is spam control so important?
E-mail the most important application on the Internet
Every mail server needs a spam filtering engine
But I don’t like the term ”spam filter”. I callSpamCheetah as a spam blocker or spam controlapplication
Massive worldwide market with huge potential
This talk speaks about the technical aspects ofSpamCheetah and how it does its job so well
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 7: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/7.jpg)
Why is spam control so important?
E-mail the most important application on the Internet
Every mail server needs a spam filtering engine
But I don’t like the term ”spam filter”. I callSpamCheetah as a spam blocker or spam controlapplication
Massive worldwide market with huge potential
This talk speaks about the technical aspects ofSpamCheetah and how it does its job so well
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 8: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/8.jpg)
Why is spam control so important?
E-mail the most important application on the Internet
Every mail server needs a spam filtering engine
But I don’t like the term ”spam filter”. I callSpamCheetah as a spam blocker or spam controlapplication
Massive worldwide market with huge potential
This talk speaks about the technical aspects ofSpamCheetah and how it does its job so well
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 9: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/9.jpg)
Why is spam control so important?
E-mail the most important application on the Internet
Every mail server needs a spam filtering engine
But I don’t like the term ”spam filter”. I callSpamCheetah as a spam blocker or spam controlapplication
Massive worldwide market with huge potential
This talk speaks about the technical aspects ofSpamCheetah and how it does its job so well
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 10: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/10.jpg)
Status of SpamCheetah
Close to 5 downloads a day
Selling as a hardware appliance in India
Every mail server needs a spam filtering engine
Everyone with a mail server needs spam protection!
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 11: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/11.jpg)
Status of SpamCheetah
Close to 5 downloads a day
Selling as a hardware appliance in India
Every mail server needs a spam filtering engine
Everyone with a mail server needs spam protection!
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 12: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/12.jpg)
Status of SpamCheetah
Close to 5 downloads a day
Selling as a hardware appliance in India
Every mail server needs a spam filtering engine
Everyone with a mail server needs spam protection!
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 13: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/13.jpg)
Status of SpamCheetah
Close to 5 downloads a day
Selling as a hardware appliance in India
Every mail server needs a spam filtering engine
Everyone with a mail server needs spam protection!
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 14: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/14.jpg)
Status of SpamCheetah
Close to 5 downloads a day
Selling as a hardware appliance in India
Every mail server needs a spam filtering engine
Everyone with a mail server needs spam protection!
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 15: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/15.jpg)
Business model of SpamCheetah
I did the online version on August 6th andrechristened Anjal as SpamCheetah
Three companies based on online downloads model -Zohocorp Inc(˜1000 employees), Vembu (˜100employees) and Jijitechnologies Kovilpatti(˜10 employees)
Online business model requires competitive pricing andunique product expertise, Google Adwords and somepatience
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 16: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/16.jpg)
Business model of SpamCheetah
I did the online version on August 6th and rechristenedAnjal as SpamCheetahThree companies based on online downloads model- Zohocorp Inc(˜1000 employees), Vembu (˜100employees) and Jijitechnologies Kovilpatti(˜10employees)
Online business model requires competitive pricing andunique product expertise, Google Adwords and somepatience
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 17: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/17.jpg)
Business model of SpamCheetah
I did the online version on August 6th and rechristenedAnjal as SpamCheetah
Three companies based on online downloads model -Zohocorp Inc(˜1000 employees), Vembu (˜100employees) and Jijitechnologies Kovilpatti(˜10 employees)
Online business model requires competitive pricingand unique product expertise, Google Adwords andsome patience
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 18: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/18.jpg)
SpamCheetah implementation details
Girish Venkatachalam SpamCheetah - revolution in spam control
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SpamCheetah implementation details II
Girish Venkatachalam SpamCheetah - revolution in spam control
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UNIX daemons in SpamCheetah
Girish Venkatachalam SpamCheetah - revolution in spam control
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SpamCheetah load balancing and failover
Girish Venkatachalam SpamCheetah - revolution in spam control
![Page 22: SpamCheetah internals](https://reader035.vdocuments.mx/reader035/viewer/2022081504/554ba974b4c905ae618b51ad/html5/thumbnails/22.jpg)
SpamCheetah links
Discussion and questions?1 SpamCheetah’s website
2 Gayatri Hitech - the company behind SpamCheetah
3 OpenBSD papers
Girish Venkatachalam SpamCheetah - revolution in spam control