I looked up a nameserver that I once worked with and found that it is "attacking" from port 53. Needless to say, it's not hacked, it's answering queries. Charles -- Charles Sprickman spork@inch.com On Sat, 27 Jul 2002, Johannes Ullrich wrote:
I do not recommend adding every IP listed at DShield to your filter. We do publish a 'block list', of the worst networks (based on reports for the last 5 days).
Quick note on our methods: We basically aggregate firewall logs and offer summarized reports. The reports should allow everyone to apply their own judgment.
For the block list: http://www.dshield.org/block_list_info.html
On Sat, 27 Jul 2002 20:19:47 -0400 "Phil Rosenthal" <pr@isprime.com> wrote:
I can comment on the dshield list. I have seen this before. I am checking one particular IP on my network that has a very popular freehost on it. Checking the load balancer IP (connections cannot be originated from this IP) -- it shows that there were 13 attacks initiated from the IP, and 7 targets. Whatever their algorithm is, it doesn't seem reliable enough for me to trust it if an IP that can not originate connections is listed as an attacker (albeit small on their list) --Phil
-----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of alsato Sent: Saturday, July 27, 2002 8:08 PM To: nanog@merit.edu Subject: Bogon list or Dshield.org type list
Im wondering how many of you use Bogon Lists and http://www.dshield.org/top10.html type lists on your routers? Im curious to know if you are an ISP with customers or backbone provider or someone else? I have a feeling not many people use these on routers? Im wondering why or why not? Ive never used them on my routers although I work for a new isp/cable provider. Im thinking it would make my users happy to use them though.
alsato
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