Oregon State University hosts real-time blackhole lists (RBL's) for use by all NERO customers. We currently have 2 machines dedicated to this service at rbl1.oregonstate.edu and rbl2.oregonstate.edu.
We host the following RBL's and they are updated at various frequencies required by the owners of each list. Some are updated as often as every 20 minutes and others just once a day.
| RBL | Zone |
| Sorbs.net | dnsbl.sorbs.net |
| NJABL: Not Just Another Bogus List | dnsbl.njabl.org |
| Distributed Server Boycott List | list.dsbl.org |
| VIRBL | virbl.dnsbl.bit.nl |
| Passive Spam Block List | psbl.surriel.com |
It is highly recommended that you read about each RBL as they all have different means of access. For example, dnsbl.sorbs.net is actually made up of several different zones such as dul.dnsbl.sorbs.net and smtp.dnsbl.sorbs.net. Adding the zone dnsbl.sorbs.net gives you access to all of the sub-zones which allows you to setup your SMTP server accordingly with which ever domains you want to use.
If you're using BIND you can use the following configuration:
zone "psbl.surriel.com" {
type forward;
forward only;
forwarders {
128.193.0.130;
128.193.0.30;
};
};
You would have an entry for each of the zones that you want to query from us specifically. See above for zones that we currently host.
If you use dnscache for your caching name server you can enable lookups to our locally hosted RBL's by editing $basedir/root/servers/$file and adding the IP's of our our RBL servers.
In this case, $basedir is the directory that you pointed dnscache-conf to and $file is the name of the zone you want to lookup via our RBL's. For example, if you wanted to point at our RBL servers for zone psbl.surriel.com you would edit $basedir/root/servers/psbl.surriel.com and add 128.193.0.30 and 128.193.0.130 each on a seperate line.
