Security Basics mailing list archives
RE: Different Internet service providers
From: "Andy Cuff (Talisker)" <SecurityLists () securitywizardry com>
Date: Wed, 13 Aug 2008 07:18:13 +0100
Hi Francisco, We made the mistake of using the same ISP for both our links and are still suffering as a result. The cost saving was short lived and whilst up time was largely maintained we suffered from: Internal ISP routing problems, home workers couldn't access our primary network when connecting from the same ISP. This wouldn't have happened with diverse ISP Spam Black Lists, all the ISP IP addresses appeared on spam black lists. Had we had another ISP we would have just changed the mx records No reverse DNS, our old expensive ISP allowed this The 24x7 manned support turned out to be, a human being raising a ticket for the next day Also consider outages, DDOS and as we once had IP hijack Regards Andy Cuff Computer Network Defence Ltd www.networkintrusion.co.uk Skype: Taliskeruk LinkedIN http://www.linkedin.com/in/andycuff
-----Original Message----- From: listbounce () securityfocus com [mailto:listbounce () securityfocus com] On Behalf Of Francisco Neira Basso Sent: Tuesday, August 12, 2008 4:46 PM To: security-basics () securityfocus com Subject: Different Internet service providers Hi all, I am trying to defend my point about the following: To have real redundancy with our Internet access it is necessary to have 2 different ISPs. At the moment, we have two providers, one with a fiberoptic last mile and the other with microwave link. Obviously they also have different networks and points of presence. One of the providers is arguing and willing to sell us _both_ accesses and I want to backup my point with additional arguments. Is there a written standard such as 17799 or 27001 that recommends different ISPs in order to enhance the business continuity? Thanks in advance for yuor replies and comments. Regards, -- Francisco Neira B. Seguridad de la Informacion Defensoria del Pueblo Lima, Peru -05:00 UTC
Current thread:
- Advice for a efficient and productive software development environment? Razi Garbie (Aug 12)
- Hippa Compliance Checklist Groups (Aug 12)
- RE: Hippa Compliance Checklist Eggleston, Mark (Aug 12)
- Different Internet service providers Francisco Neira Basso (Aug 12)
- Re: Different Internet service providers Vu Anh Tu (Aug 13)
- Re: Advice for a efficient and productive software development environment? Alex Howells (Aug 12)
- Message not available
- RE: Different Internet service providers Andy Cuff (Talisker) (Aug 13)
- Hippa Compliance Checklist Groups (Aug 12)
- <Possible follow-ups>
- Re: Advice for a efficient and productive software development environment? bgree (Aug 12)