That wont stop a DoS.

A DoS or DDoS is pure bandwidth wars for the most part, if someone is to DoS 
you, they already have your IP's and urls they need to attack you, thus a spam 
list won't stop an attack.

If you want to minimize actual spam, sure.

-----Original Message-----
From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Adam Greene
Sent: Friday, June 27, 2014 9:18 AM
To: 'NANOG list'
Subject: Team Cymru / Spamhaus

Hi all,

 

We're evaluating whether to add BGP feeds from these two sources in attempt to 
minimize exposure to DoS.

 

The Team Cymru BOGON list (

http://www.team-cymru.org/Services/Bogons/bogon-bn-nonagg.txt or

http://www.team-cymru.org/Services/Bogons/bogon-bn-agg.txt

)

looks promising and common-sense. 

 

We already filter RFC1918 inbound at our edge, and are interested to see if 
adding the rest of the blocks will have a significant positive effect.

 

If it does, we're planning to try the IPv4 FULLBOGON list:

 

http://www.team-cymru.org/Services/Bogons/fullbogons-ipv4.txt

 

We're a little more leery about trying Spamhaus's BGPf service (DROP, EDROP and 
BCL, 

 

http://www.spamhaus.org/bgpf/

)

 

because we really want to avoid false positives. 

 

Just wondering if anyone has any words of caution ("False positives! Avoid 
FULLBOGONS and Spamhaus!"), or words of praise ("Do it all! These services are 
wonderful!") before we take the plunge.

 

Thanks,

Adam

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