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Hello Kirk, |
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Is there IPtables based port knocker? |
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I dislike idea opening ports for this purpose because they can be distinguished by some way. |
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Promiscuous mode port knockers consume a lot of processor and |
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I don't think it's good for production server. |
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KH> A port knocker of some sort is a much more secure solution that will |
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KH> allow you to block all unwanted IP's but still allow for dynamic |
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KH> addresses. There are port knockers that listen on various ports and |
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KH> work like a combination lock to open the port, and there are others that |
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KH> use a more secure one time pad "magic packet" kind of authentication to |
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KH> open the port for your IP. It is more work to setup, but it is more |
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KH> secure than just changing the port. Remember a few years ago when ssh |
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KH> had a remote exploit? You probably shouldn't leave that port open. |
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-- |
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Best regards, |
| 18 |
boger mailto:boger@×××.ru |
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gentoo-security@g.o mailing list |
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