July 2016 - mice-discuss - lists.micemn.net

Re: DDoS Identification / Mitigation

by Mike Horwath

On Sat, Jul 30, 2016 at 11:05:48PM -0500, Brady Kittel wrote: > I worked at a shop for a while that used Arbor networks solution > with good success. From what I recall it requires the upstream > carrier to support it so you'd have to see if yours do. I replied offlist to the OP. There are so many ways to operate denial of service attacks. Some of them are bandwidth eating (ICMP, SYN, UDP flooding), some of them attack the assets (HTTP slow accept, high fake query/request, etc). Each of these needs a slightly different approach. Arbor Networks works quite well if both ends have it - very true and also very, very expensive. F5 has stuff built in to protect assets but also can be very expensive. Fortigate firewalls have some decent stuff in them for relegating throughput and dropping bad traffic at the edge but will require some tuning. IPS/IDS is quite good as well. But once the traffic is at your edge, and the attack is to burn your bandwidth, you've already lost. But if application attacks are going on then FGT can help. CloudFlare moves the endpoint into their network and have come a long way since I first learned of them. Think of it as a reverse proxy for HTTP-type termination and your global DNS server. There are so many things that can help mitigate depending on the type of attack - that needs to be determined :) -- Mike Horwath, reachable via drechsau(a)Geeks.ORG

July 31, 2016

Re: DDoS Identification / Mitigation

by Brady Kittel

I worked at a shop for a while that used Arbor networks solution with good success. From what I recall it requires the upstream carrier to support it so you'd have to see if yours do. On Jul 30, 2016 4:35 PM, "Dave Williams" <dave(a)revnetdata.com> wrote: > Hi all – I know this isn’t a MICE specific question, but I can’t think of > a better group of people to ask! I was wondering if anyone could share > their strategy for DDoS detection and mitigation? We randomly have > troubles with it and as you can imagine it’s quite the pain! > > Thanks in advance! > > d > > > > Dave Williams > > Founder / Visionary > > Revelation Network Management, Inc. > > O: 763.367.6161 > > C: 763.670.5558 > > > > ------------------------------ > > To unsubscribe from the MICE-DISCUSS list, click the following link: > http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1 >

July 31, 2016

Re: DDoS Identification / Mitigation

by Steve Howard

This isn't exactly a detection/mitigation solution, but we use the CYMRU UTRS service to help us reduce our share of the problem: http://www.team-cymru.org/UTRS/ https://www.cymru.com/jtk/misc/utrs.html I encourage everyone to check it out. It's free, and as more organizations participate it becomes more effective. > On Jul 30, 2016, at 15:35, Dave Williams <dave(a)REVNETDATA.COM> wrote: > > Hi all – I know this isn’t a MICE specific question, but I can’t think of a better group of people to ask! I was wondering if anyone could share their strategy for DDoS detection and mitigation? We randomly have troubles with it and as you can imagine it’s quite the pain! > Thanks in advance! > d > > Dave Williams > Founder / Visionary > Revelation Network Management, Inc. > O: 763.367.6161 > C: 763.670.5558 > > > To unsubscribe from the MICE-DISCUSS list, click the following link: > http://lists.iphouse.net/cgi-bin/wa?SUBED1=MICE-DISCUSS&A=1

July 31, 2016

DDoS Identification / Mitigation

by Dave Williams

Hi all - I know this isn't a MICE specific question, but I can't think of a better group of people to ask! I was wondering if anyone could share their strategy for DDoS detection and mitigation? We randomly have troubles with it and as you can imagine it's quite the pain! Thanks in advance! d Dave Williams Founder / Visionary Revelation Network Management, Inc. O: 763.367.6161 C: 763.670.5558

July 30, 2016

LTD Broadband 2nd port

by Jason Hanke

LTD Broadband is adding a second MICE connection on the main switch. Their connection on the NP Remote switch will remain. Port: xe-2/0/4 IPv4: 206.108.255.42/24 IPv6: 2001:504:27:0:6:045A::2/64 ASN: 394330 Contact: corey.hauer(a)ltdbroadband.com They will need route server config for this port as well. These ports will NOT be in a LAG group. Welcome Aboard (again)! -- Jay Hanke CTO Neutral Path Communications 3 Civic Center Plaza, Suite 204 Mankato, MN 56001 (507) 327-2398 mobile jayhanke(a)neutralpath.net www.neutralpath.net

July 30, 2016

Re: State of MN DNS Issues

by Frank Bulk

Doesn't seem happy: http://dnsviz.net/d/state.mn.us/dnssec/ Frank -----Original Message----- From: MICE Discuss [mailto:MICE-DISCUSS@LISTS.IPHOUSE.NET] On Behalf Of Richard Laager Sent: Tuesday, July 19, 2016 6:53 PM To: MICE-DISCUSS(a)LISTS.IPHOUSE.NET Subject: Re: [MICE-DISCUSS] State of MN DNS Issues On 07/19/2016 03:42 AM, Richard Laager wrote: > FYI: state.mn.us DNS has broken DNSSEC and broken IPv6. I called > yesterday, and they were aware of the DNSSEC issue. The state says it's good, and it looks good from my perspective again. -- Richard

July 20, 2016

Re: State of MN DNS Issues

by Richard Laager

On 07/19/2016 03:42 AM, Richard Laager wrote: > FYI: state.mn.us DNS has broken DNSSEC and broken IPv6. I called > yesterday, and they were aware of the DNSSEC issue. The state says it's good, and it looks good from my perspective again. -- Richard

July 19, 2016

Fwd: [JPTECHS] Fwd: [MICE-DISCUSS] State of MN DNS Issues

by David Farmer

I forwarded this off to the guys at the state, here is a response. Thanks ---------- Forwarded message ---------- From: Reilly, Russ (MNIT) <russ.reilly(a)state.mn.us> Date: Tue, Jul 19, 2016 at 9:19 AM Subject: Re: Fwd: [MICE-DISCUSS] State of MN DNS Issues Thanks, we are aware of some complaints and working the issue. Something possibly related to how IPv6 was enable on the Infoblox and the various addresses. Comcast was broke Saturday and we got that fixed so it seems there are just oddities in various resolvers we are working through this with Infoblox. *Russ Reilly* | Network Support, network Support Manager MN.IT Services, State of Minnesota 651-201-1022 (w) *| * russ.reilly(a)state.mn.us *[image: Title: MN.IT Services logo - Description: MN.IT Services logo]* <http://www.mn.gov/oet> Information Technology for Minnesota Government *|* mn.gov/mnit <http://www.mn.gov/oet> Begin forwarded message: *From:* Doug McIntyre <merlyn(a)IPHOUSE.NET <merlyn(a)iphouse.net>> *Date:* July 19, 2016 at 08:51:27 CDT *To:* MICE-DISCUSS(a)LISTS.IPHOUSE.NET <MICE-DISCUSS(a)lists.iphouse.net> *Subject:* *Re: [MICE-DISCUSS] State of MN DNS Issues* *Reply-To:* MICE Discuss <MICE-DISCUSS(a)LISTS.IPHOUSE.NET <MICE-DISCUSS(a)lists.iphouse.net>> On Tue, Jul 19, 2016 at 03:42:13AM -0500, Richard Laager wrote: FYI: state.mn.us DNS has broken DNSSEC and broken IPv6. I called yesterday, and they were aware of the DNSSEC issue. I had to push out the early beta BIND 9.11 out to production so I could use the new Negative Trust anchor option for them on my frontline resolvers. rndc nta state.mn.us [view] I think only BIND based resolvers thought it was an error though. -- Doug McIntyre <merlyn(a)iphouse.net> ~.~ ipHouse ~.~ Network Engineer/Provisioning/Jack of all Trades -- =============================================== David Farmer Email:farmer@umn.edu Networking & Telecommunication Services Office of Information Technology University of Minnesota 2218 University Ave SE Phone: 612-626-0815 Minneapolis, MN 55414-3029 Cell: 612-812-9952 ===============================================

July 19, 2016

Re: State of MN DNS Issues

by Doug McIntyre

On Tue, Jul 19, 2016 at 03:42:13AM -0500, Richard Laager wrote: > FYI: state.mn.us DNS has broken DNSSEC and broken IPv6. I called > yesterday, and they were aware of the DNSSEC issue. I had to push out the early beta BIND 9.11 out to production so I could use the new Negative Trust anchor option for them on my frontline resolvers. rndc nta state.mn.us [view] I think only BIND based resolvers thought it was an error though. -- Doug McIntyre <merlyn(a)iphouse.net> ~.~ ipHouse ~.~ Network Engineer/Provisioning/Jack of all Trades

July 19, 2016

State of MN DNS Issues

by Richard Laager

FYI: state.mn.us DNS has broken DNSSEC and broken IPv6. I called yesterday, and they were aware of the DNSSEC issue. http://dnsviz.net/d/state.mn.us/dnssec/ -- Richard

July 19, 2016