Date: Fri, 1 Aug 2008 15:26:40 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Ed Schouten <ed@80386.nl> Cc: karim.bourenane@orange-ftgroup.com, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: [BSD6] SSH Restriction Message-ID: <20080801122640.GH97161@deviant.kiev.zoral.com.ua> In-Reply-To: <20080801121004.GO99951@hoeg.nl> References: <EB0526E758E4764B9B5186295C5790C901A7CF4E@PUEXCBJ0.nanterre.francetelecom.fr> <20080801121004.GO99951@hoeg.nl>
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--NWFdL9cNbHaIJHRV Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Aug 01, 2008 at 02:10:04PM +0200, Ed Schouten wrote: > Hello Karim, >=20 > * karim.bourenane@orange-ftgroup.com <karim.bourenane@orange-ftgroup.com>= wrote: > > I have one question. How i can restrict ( limit ) 1 user to have for > > exemple 5 ssh connection in simutanous time, no more ? >=20 > It's quite funny you ask this question, because I've been working on > this last week. >=20 > The new TTY code, which I'll commit next week, adds a new rlimit to the > kernel called RLIMIT_NPTS. This rlimit allows you to limit the number of > pseudo-terminals allocated by a single user. This means you can limit > the number of login sessions by tuning the "pseudoterminals" field in > /etc/login.conf. >=20 > This seems to work with tools like screen(1), xterm(1), etc. > Unfortunately I didn't get it working with OpenSSH, because OpenSSH > allocates terminals while been root. I've already contacted the OpenSSH > folks about this, but I haven't got any response (yet). Limit on the allocation of the ptys is useful. Trying to use it to top the number of the "sessions" may be not. There is a -T option for the ssh(= 1). Without clear description of why the restriction is imposed, the question probably cannot be answered. --NWFdL9cNbHaIJHRV Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkiTAQAACgkQC3+MBN1Mb4jS5wCfbvLF0OXkWitxpSDRvVQWUGu+ GAkAnjtaKpiD8igNZOIaWNcc8OL2s5/3 =LdD8 -----END PGP SIGNATURE----- --NWFdL9cNbHaIJHRV--
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