From owner-freebsd-questions@freebsd.org Sun Aug 19 18:53:35 2018 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C40B5107462E for ; Sun, 19 Aug 2018 18:53:35 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 58D19857EE for ; Sun, 19 Aug 2018 18:53:35 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: by mailman.ysv.freebsd.org (Postfix) id 1D0ED107462D; Sun, 19 Aug 2018 18:53:35 +0000 (UTC) Delivered-To: questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0BA86107462C for ; Sun, 19 Aug 2018 18:53:35 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "mout.kundenserver.de", Issuer "TeleSec ServerPass DE-2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 56749857ED for ; Sun, 19 Aug 2018 18:53:33 +0000 (UTC) (envelope-from freebsd@edvax.de) Received: from r56.edvax.de ([92.195.99.237]) by mrelayeu.kundenserver.de (mreue104 [212.227.15.183]) with ESMTPA (Nemesis) id 0MRlnN-1fOcMa16QD-00T0W1; Sun, 19 Aug 2018 20:53:29 +0200 Date: Sun, 19 Aug 2018 20:53:28 +0200 From: Polytropon To: Arturo Rafael =?ISO-8859-1?Q?Ram=EDrez_Brice=F1o?= Cc: "questions@FreeBSD.org" Subject: Re: I beg your response ... / Ruego su respuesta... Message-Id: <20180819205328.eb81c27b.freebsd@edvax.de> In-Reply-To: References: Reply-To: Polytropon Organization: EDVAX X-Mailer: Sylpheed 3.1.1 (GTK+ 2.24.5; i386-portbld-freebsd8.2) Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:ovvpVb6z/Se/U5Ld1gUJoWGm+DoiYOVwBuiMMnXv1K/BhClGHaK 1a8DNfR+TSywjOmvvFeSwDqY9VQ49o0ykGL8upyViU4jQ9G8R4f5E9kX1u4eGnpR/iyzvnB HoNyKx1u1u2PKsF1/6j6vhd1rwopNkwtVmkcJIhWC8XWBR5Yr5afV/QAIuRCKPTdZcqdVZN UfZhZtyGGsENImuwD2Kbg== X-UI-Out-Filterresults: notjunk:1;V01:K0:heklWSJYXig=:7Io00o32AXDlQArKQFecx+ 7rzb1UxDmGkGIr1rcnoEui6KERZUHozuVKCadtUrFae5Q7KMip8Yf1m1BsDpiRyrTQkkyeqNd 3SrjUOLnEZVGflQSSjbbCGLJ5wrDbPhC3earAdder3nhD9G71blPVfjJYOOKgNdTPHeKAWwHL BVFoJedYNUeyqEVe/3hcpzv9HBfYgYN0DdfOscbs+Hp2CRmFEvLRK9CNgzcQAg3y/Da74hQ8Y ZKOYbbNm0x45dfsetbN5/Mzy+YdUVIECW3j8apMAyhKD+Ta6W741Wb4csev/AoMTo67unnM8z QB8drdLHkUd/Oxg6ehlY8heMv0WxeNLOnqQL7SIXY409A2nDXC9m8t9qa4IvuVoMR+2vjUdZC YKTCOQ1mL2TrH2quZ9Qn10GjqrFZ9vSUtvzDKJCs1PzILgkuKPBU5KKbkXSx+vILQrEA8Dh6/ o3N2IoUZ8jgT3sPcxJCd/mFk6Z85Z7pg1yXaHfQldF1l2/OS9LiYKvKj10w6Bg+hzWTzlsBxm 1JxMjAr2Pbu8W2GEWT/5vLzQUQaOaToCqkUYhjv+fLWs7KtRFGhi0IdiGJi87xrOIOqGyppDu f1Faz+CCwxaZc4TQ9mwRp5iwW6/KFf2Q15Zmf1R7SU/C3qaHPZu8cfUgMFGec7Jl5EAVjLDW6 Hpz2aFYQCF+FgAy7K5huRRzld4/S7rEG8hgA7IdPyP6uJsHDP70BdCvyQhCUNBPk0nxnZpH1q uAEQx0RzrxyU/qSZ X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Aug 2018 18:53:36 -0000 On Sun, 19 Aug 2018 18:08:06 +0000, Arturo Rafael Ram=EDrez Brice=F1o wrote: > Can a firewall (for example pfsense) be used so that in a local > network it prevents the nodes from being seen, [...] What do you mean by "to be seen" in this context? To be seen from where? Fron within the network, from an external source? Seen on which layer (e. g., "seen" via TCP/IP, "seen" via ARP)? Firewalls are often combined with NAT, so connections to the outside appear "as one" whereas in reality they are translated to the individual nodes as needed. > [...] they share resources, [...] Yes. This is a typical firewall configuration: Do not interfere with the communication within a network, but apply rules for traffic from the network to the Internet and back. (Sidenote: Firewalls installed on computers of course can apply rules to the communication of the nodes to each other within the network, but it doesn't seem this is the scope of your question.) However, again "share resources" is not fully clear. What resources? Shared how? > [...] but that each node of that network does have access to > the Internet? Is that a requirement or the current status? Anyway, yes, a regular firewall can achieve that. > What is your suggestion about it? Please express more clearly what you wish to achieve. If possible, use established technical terminology (especially for "to be seen"). :-) --=20 Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...