Security Basics mailing list archives
RE: Port Knocking questions
From: "Yvan Boily" <yboily () seccuris com>
Date: Mon, 1 Mar 2004 14:47:33 -0600
Port knocking is a form of access control. In short, port knocking is the process of modifying access to a system based on a sequence of attempts to connect to a network. If you google for it you should find some good papers on the subject. Like any other security tool it can be used to improve security for either legitimate uses, such as providing a form of authentication before granting access to a server on a protected system, or for more nefarious purposes, such as creating a backdoor that only opens when a sequence is played, making such doors incredibly difficult to detect. Regards, Yvan Boily Information Security Analyst Seccuris -----Original Message----- From: Richard Shinkle [mailto:rshinkle451 () hotmail com] Sent: Friday, February 27, 2004 10:58 PM To: security-basics () securityfocus com Subject: Port Knocking questions Hello... I have a few questions about port knocking. First of all, is it a hacker tool or a security tool? Does it require the hacker to be able to ping the device? Rich S. _________________________________________________________________ Watch high-quality video with fast playback at MSN Video. Free! http://click.atdmt.com/AVE/go/onm00200365ave/direct/01/ --------------------------------------------------------------------------- ---------------------------------------------------------------------------- --------------------------------------------------------------------------- Free 30-day trial: firewall with virus/spam protection, URL filtering, VPN, wireless security Protect your network against hackers, viruses, spam and other risks with Astaro Security Linux, the comprehensive security solution that combines six applications in one software solution for ease of use and lower total cost of ownership. Download your free trial at http://www.securityfocus.com/sponsor/Astaro_security-basics_040301 ----------------------------------------------------------------------------
Current thread:
- Port Knocking questions Richard Shinkle (Mar 01)
- RE: Port Knocking questions David Gillett (Mar 01)
- RE: Port Knocking questions Yvan Boily (Mar 01)
- Re: Port Knocking questions Ansgar -59cobalt- Wiechers (Mar 01)
- Re: Port Knocking questions Vincent (Mar 02)
- <Possible follow-ups>
- Re: Port Knocking questions H Carvey (Mar 01)
- Re: Port Knocking questions Ansgar -59cobalt- Wiechers (Mar 02)