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183 discussions

Welcoming new public name server
by announce＠lists.surbl.org 09 Mar '08

09 Mar '08

We'd like to welcome the addition of a new SURBL public name server h5.surbl.org hosted by: Hubris Communications Inc The SURBL community thanks all the hosts and administrators of the public name servers for their ongoing help and support!

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SURBL mailing list web site available again
by Jeff Chan 09 Feb '08

09 Feb '08

Thanks to some help from Raymond and Prolexic, the SURBL mailing list GNU Mailman web site is available again: http://lists.surbl.org/ Cheers, Jeff C.

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Welcoming new public name server
by Jeff Chan 06 Feb '08

06 Feb '08

We'd like to welcome the addition of a new public SURBL name server d5.surbl.org hosted by: Jazz Telecom The SURBL community thanks all the hosts and administrators of the SURBL public name servers for their continued help and support! Jeff C.

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ISP nameserver NXDOMAIN modifications may cause false positives
by Jeff Chan 03 Feb '08

03 Feb '08

Some ISPs including Verizon and Charter have apparently started modifying DNS NXDOMAIN responses in such a way that may cause false positives on SURBLs and other lists for systems using their nameservers. They may be doing this in order to drive search traffic for web sites that appear to not exist as indicated by an NXDOMAIN response to a DNS query. However SURBLs and other lists use a response of NXDOMAIN to indicate that a queried object is not on the list. If the last octet of the modified response happens to correspond to the bitmasked positions of blacklists (which seems likely given that 6 of 8 possible bits are currently used), then false positives may result. Verizon and Charter have opt-out nameservers, but Charter's opt-out nameservers reportedly do not correctly return a NXDOMAIN result. One solution is to not use their nameservers. These issues won't affect systems running their own nameservers, or using other nameservers. These issues may affect other ISPs if they are also modifying NXDOMAIN responses. The situation is somewhat like OpenDNS before they changed their behavior to not modify NXDOMAIN responses to list queries. http://www.surbl.org/faq.html#opendns Jeff C.

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Welcoming new public name server
by Jeff Chan 14 Jan '08

14 Jan '08

We'd like to welcome the addition of a new public SURBL name server g5.surbl.org administered by: Interactive Digital Publishing Group http://www.idpg.com/ We thank the hosts and administrators of our public nameservers for their support! Jeff C.

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Welcoming new public name server
by Jeff Chan 12 Dec '07

12 Dec '07

We'd like to welcome and thank the addition of a new public SURBL name server k5.surbl.org administered by: NetEase.com, Inc. Without our public nameservers and the help of their administrators, SURBLs would not be possible. Our thanks to all of them! Jeff C.

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"The DNS blackhole" malware and phishing data from malwaredomains.com added to PH
by Jeff Chan 06 Dec '07

06 Dec '07

As of December 5, 2007, we've added a moderately filtered version of malware, spyware and phishing data from malwaredomains.com to ph.surbl.org. Here's David Glosser's description of the data: "*The DNS blackhole* list is an actively maintained list of domains associated with malware and malicious software. For more information and mirrors, please visit www.malwaredomains.com" It appears that many of the data come from the Intrusion Detection System community such as Snort Bleeding Threats, malware research, etc., in addition to more recently having added phishing data. This is a slight divergence for SURBL since traditionally we have not focussed on malware sites, but there does seem to be some overlap (about 20%) between this new data set and our existing data. In other words, we had about one-fifth of them already blacklisted. Presumably some of the malware sites appear in spams in an attempt to compromise systems of those who visit malware loader sites, or install the hosted malware, etc. Cheers, Jeff C.

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Welcoming new public name server
by Jeff Chan 05 Dec '07

05 Dec '07

We'd like to welcome and thank the addition of a new public SURBL name server n4.surbl.org administered by: 1&1 Internet AG Without our public nameservers and the help of their administrators, SURBLs would not be possible. Our thanks to all of them! Jeff C.

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Prolexic defends SURBL against DDOS
by Jeff Chan 26 Sep '07

26 Sep '07

SURBL would like to thank Prolexic for providing their DDOS mitigation services to protect our web site. There have been ongoing attacks against our web site that are now essentially invisible to us thanks to their efforts. Prolexic has a press release from June 2007 about it: http://www.prolexic.com/news/20070627-surbl.php

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Welcoming new public name server
by Jeff Chan 25 Sep '07

25 Sep '07

We'd like to welcome and thank the addition of a new SURBL public name server e1.surbl.org administered by: spamchek.com Without our public name servers and the help of their administrators, SURBLs would not be possible. Our thanks to all of them! P.S. We could still use a few more public nameservers. More information is at: http://www.surbl.org/public-dns.html

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