Mailinglist Archive: opensuse (4446 mails)

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Re: [opensuse] Re: don't set Reply-to!! (was NO PERSONAL REPLIES...)
  • From: Jan Engelhardt <jengelh@xxxxxxxxxxxxxxx>
  • Date: Fri, 8 Dec 2006 11:59:24 +0100 (MET)
  • Message-id: <Pine.LNX.4.61.0612081155080.20988@xxxxxxxxxxxxxxx>

On Dec 8 2006 02:04, Joachim Schrod wrote:
>To quote Jon Postel in RFC 761, the TCP definition from Januay 1980,
>the last two lines on page 12:
> be conservative in what you do, be liberal in what you accept from
> others.
>Words to keep in mind, they served us well in more than 25 years --
>RIP Jon Postel.

You know where this RFC attitude brought us - Web browsers accepting
broken HTML, resulting in sloppy non-standard pages that display in
less than average of the browsers. Especially when it comes to
security, e.g. firewalls, it's better to turn the RFC quote:

Be conservative in what you accept and be
liberal in what you do.

Meaning: block all network packets that could potentially be harm and
pro-actively try to stop any spammer using non-compliant probing

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