full-disclosure - Re: Microsoft Security, baby steps ?

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From: John.Airey at rnib.org.uk (John.Airey@...b.org.uk)
Subject: Re: Microsoft Security, baby steps ?

> -----Original Message-----
> From: Geo. [mailto:geoincidents@...info.org]
> Sent: Wednesday, 17 March 2004 16:12
> To: Simon Richter; Geoincidents
> Cc: Daniele Muscetta; full-disclosure@...ts.netsys.com
> Subject: RE: [Full-Disclosure] Re: Microsoft Security, baby steps ?
> 
> 
> >>Hrm, how about inventing an option (at install time) that 
> places a very
> restrictive firewall on the network connection by default, say, only
> outgoing port 80 to windowsupdate.com (or even better, only let it
> establish a secure tunnel there), so you can patch and then loosen the
> firewall settings after that?<<
> 
> It doesn't address the issue. The requirement is that some MS 
> customers need
> to patch without putting the machine on the internet. For 
> whatever reasons.
> 
> Is that such an unreasonable request?
> 
> Geo.

>From experience, you can't just lock down to that one server. You need to
allow port 80 and 443 access to different servers. Each day the list of
servers changes because of the Akamai caching that is used. I spend some
time configuring locked down systems to be able to talk to them. So yes, it
is an unreasonable request.

On the other hand, access to Red Hat Network needs only one port and one IP
address. No doubt there's some serious load-balancing going on in the
background.

- 
John Airey, BSc (Jt Hons), CNA, RHCE
Internet systems support officer, ITCSD, Royal National Institute of the
Blind,
Bakewell Road, Peterborough PE2 6XU,
Tel.: +44 (0) 1733 375299 Fax: +44 (0) 1733 370848 John.Airey@...b.org.uk 

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