看板FB_security
标 题Re: rate limiting sshd connections ?
发信站NCTU CSIE FreeBSD Server (Tue May 11 21:25:38 2004)
转信站ptt!FreeBSD.csie.NCTU!not-for-mail
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> > Aside from having more connection limiting features inetd is also
> > easier to configure on non-standard ports, uses less memory (1K vs
> > 5K), and has a simpler (and by extension more secure) code base.
>
> As to security I think both code bases have had about the same degree of
> peer review. The smaller size of the inetd code base is what makes it
> more secure.
1) how does this interact with privilege separation? as far as I
understand it, privilege separation implies that no raw data from the
network will ever be touched by a root-running process. I don't expect
that inetd can say the same.
2) if you really are looking for a very simple/secure network listener,
tcpserver from the ucspi-tcp package is going to fit that bill _way_ more
than inetd. and tcpserver also provides rate-limiting, use of arbitrary
ports, an even smaller memory footprint, as well as features that inetd
doesn't have (like setting environment variables based on remote address).
-Jason
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Freud himself was a bit of a cold fish, and one cannot avoid the suspicion
that he was insufficiently fondled when he was an infant.
-- Ashley Montagu
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