From owner-freebsd-ipfw@freebsd.org Wed Sep 5 15:35:22 2018 Return-Path: Delivered-To: freebsd-ipfw@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 78B58FF4082 for ; Wed, 5 Sep 2018 15:35:22 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from forward105j.mail.yandex.net (forward105j.mail.yandex.net [IPv6:2a02:6b8:0:801:2::108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "forwards.mail.yandex.net", Issuer "Yandex CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id EA25C86492 for ; Wed, 5 Sep 2018 15:35:21 +0000 (UTC) (envelope-from bu7cher@yandex.ru) Received: from mxback11j.mail.yandex.net (mxback11j.mail.yandex.net [IPv6:2a02:6b8:0:1619::84]) by forward105j.mail.yandex.net (Yandex) with ESMTP id C7DA11867ED; Wed, 5 Sep 2018 18:35:18 +0300 (MSK) Received: from smtp4p.mail.yandex.net (smtp4p.mail.yandex.net [2a02:6b8:0:1402::15:6]) by mxback11j.mail.yandex.net (nwsmtp/Yandex) with ESMTP id iTGegWQT5U-ZIPaqZK2; Wed, 05 Sep 2018 18:35:18 +0300 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1536161718; bh=DYhYb+fWjV4chB2fPFhx1zSeB0P9bjAXoZacre7lMsQ=; h=Subject:To:References:From:Message-ID:Date:In-Reply-To; b=Ve95Ku3oIwHwCZ2EWTjKiBj7NWXP0hiHCIvKlW4AEynPx29xR+Nwv+DqB9QYEAjRF 8buXnpqkWKxHMuUK/WphTgSdxdihP67eduDr2Tppz1QOJ3HwHbnuCFS4jYAtLK3gPV Kxt6s/6lDGlq0rwN84yx5GvRckXohQVvzLAZ2Il8= Received: by smtp4p.mail.yandex.net (nwsmtp/Yandex) with ESMTPSA id RfGFlNP0t7-ZH28c8vp; Wed, 05 Sep 2018 18:35:17 +0300 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client certificate not present) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1536161717; bh=DYhYb+fWjV4chB2fPFhx1zSeB0P9bjAXoZacre7lMsQ=; h=Subject:To:References:From:Message-ID:Date:In-Reply-To; b=pM/o57osbv8N8NealbUTNi0FNDOBQfjaaeJ2cE8DZlI99Tp8AkAAeH2XxkQT3NHmG 3Adh9N7mFlSSt8leUOJYzD08+R5e2ZWbD0gX1g7xkxW0F/LYz8QH74y8fk3rldhqbP AkaTr3A22KgtxMtO1Skq3TR2oJwqrlm8yoA0ActI= Authentication-Results: smtp4p.mail.yandex.net; dkim=pass header.i=@yandex.ru Subject: Re: ipfw managing rules - best practice? To: Ole , freebsd-ipfw@freebsd.org References: <20180905112847.54287198.ole@free.de> From: "Andrey V. Elsukov" Openpgp: id=E6591E1B41DA1516F0C9BC0001C5EA0410C8A17A Autocrypt: addr=bu7cher@yandex.ru; prefer-encrypt=mutual; keydata= xsBNBEwBF1kBCADB9sXFhBEUy8qQ4X63Y8eBatYMHGEFWN9ypS5lI3RE6qQW2EYbxNk7qUC5 21YIIS1mMFVBEfvR7J9uc7yaYgFCEb6Sce1RSO4ULN2mRKGHP3/Sl0ijZEjWHV91hY1YTHEF ZW/0GYinDf56sYpDDehaBF5wkWIo1+QK5nmj3vl0DIDCMNd7QEiWpyLVwECgLX2eOAXByT8B bCqVhJGcG6iFP7/B9Ll6uX5gb8thM9LM+ibwErDBVDGiOgvfxqidab7fdkh893IBCXa82H9N CNwnEtcgzh+BSKK5BgvPohFMgRwjti37TSxwLu63QejRGbZWSz3OK3jMOoF63tCgn7FvABEB AAHNIkFuZHJleSBWLiBFbHN1a292IDxhZUBmcmVlYnNkLm9yZz7CwHsEEwECACUCGwMGCwkI BwMCBhUIAgkKCwQWAgMBAh4BAheABQJMB/ruAhkBAAoJEAHF6gQQyKF6MLwH/3Ri/TZl9uo0 SepYWXOnxL6EaDVXDA+dLb1eLKC4PRBBjX29ttQ0KaWapiE6y5/AfzOPmRtHLrHYHjd/aiHX GMLHcYRXD+5GvdkK8iMALrZ28X0JXyuuZa8rAxWIWmCbYHNSBy2unqWgTI04Erodk90IALgM 9JeHN9sFqTM6zalrMnTzlcmel4kcjT3lyYw3vOKgoYLtsLhKZSbJoVVVlvRlGBpHFJI5AoYJ SyfXoN0rcX6k9X7Isp2K50YjqxV4v78xluh1puhwZyC0p8IShPrmrp9Oy9JkMX90o6UAXdGU KfdExJuGJfUZOFBTtNIMNIAKfMTjhpRhxONIr0emxxDOwE0ETAEXWQEIAJ2p6l9LBoqdH/0J PEFDY2t2gTvAuzz+8zs3R03dFuHcNbOwjvWCG0aOmVpAzkRa8egn5JB4sZaFUtKPYJEQ1Iu+ LUBwgvtXf4vWpzC67zs2dDuiW4LamH5p6xkTD61aHR7mCB3bg2TUjrDWn2Jt44cvoYxj3dz4 S49U1rc9ZPgD5axCNv45j72tggWlZvpefThP7xT1OlNTUqye2gAwQravXpZkl5JG4eOqJVIU X316iE3qso0iXRUtO7OseBf0PiVmk+wCahdreHOeOxK5jMhYkPKVn7z1sZiB7W2H2TojbmcK HZC22sz7Z/H36Lhg1+/RCnGzdEcjGc8oFHXHCxUAEQEAAcLAXwQYAQIACQUCTAEXWQIbDAAK CRABxeoEEMihegkYCAC3ivGYNe2taNm/4Nx5GPdzuaAJGKWksV+w9mo7dQvU+NmI2az5w8vw 98OmX7G0OV9snxMW+6cyNqBrVFTu33VVNzz9pnqNCHxGvj5dL5ltP160JV2zw2bUwJBYsgYQ WfyJJIM7l3gv5ZS3DGqaGIm9gOK1ANxfrR5PgPzvI9VxDhlr2juEVMZYAqPLEJe+SSxbwLoz BcFCNdDAyXcaAzXsx/E02YWm1hIWNRxanAe7Vlg7OL+gvLpdtrYCMg28PNqKNyrQ87LQ49O9 50IIZDOtNFeR0FGucjcLPdS9PiEqCoH7/waJxWp6ydJ+g4OYRBYNM0EmMgy1N85JJrV1mi5i Message-ID: <67544958-07fe-7ff4-b5d2-88bf85324061@yandex.ru> Date: Wed, 5 Sep 2018 18:33:58 +0300 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: <20180905112847.54287198.ole@free.de> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="Ax4Eeh3fAzSZX7v9RGQhIXM6wYYxxKEFM" X-BeenThere: freebsd-ipfw@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: IPFW Technical Discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Sep 2018 15:35:22 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --Ax4Eeh3fAzSZX7v9RGQhIXM6wYYxxKEFM Content-Type: multipart/mixed; boundary="uW7tneBDgT75AaAhqFKb9fujb5G9qcb1G"; protected-headers="v1" From: "Andrey V. Elsukov" To: Ole , freebsd-ipfw@freebsd.org Message-ID: <67544958-07fe-7ff4-b5d2-88bf85324061@yandex.ru> Subject: Re: ipfw managing rules - best practice? References: <20180905112847.54287198.ole@free.de> In-Reply-To: <20180905112847.54287198.ole@free.de> --uW7tneBDgT75AaAhqFKb9fujb5G9qcb1G Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 05.09.2018 12:28, Ole wrote: > I understand, that this connections get broken because the dynamic=20 > rules get flushed with the `ipfw -q -f flush` command. But commenting=20 > this command out results in a continuously growing rules table. >=20 > With the `ipfw -d list` command I can see the dynamic rules.=20 > Is there a way to flush the rules but not the dynamic ones? > Or to add them again after flush? There is net.inet.ip.fw.dyn_keep_states sysctl variable. It allows to keep dynamic state when parent rule is deleted. But you need to use default_to_accept firewall to make it working. I plan to reimplement this feature to be more useful and work with any rules, and not only with "allow" rules. --=20 WBR, Andrey V. Elsukov --uW7tneBDgT75AaAhqFKb9fujb5G9qcb1G-- --Ax4Eeh3fAzSZX7v9RGQhIXM6wYYxxKEFM Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAluP92YACgkQAcXqBBDI oXoliwf/ZRQfMcLzV0lQsMBWN6G6NOuMa59KyohxWMb8Bj/ubaXbQdV6sGeUR7fD 3PSiYCiUa9d0KNgZOXvqxfN8gAWchl1qfbo0iKMz0F2lk383wUQTBWD6muDaW8oH SKi/cGSUAerPjlfMJIbICpDcDeDLB+eTQnuSJPLKbekHTWn1CRS2vEymdhY1ciiy jgvTC3LY1uhVCm3GKKjQB0qgNXo1EL7a2iZNQ1hWnlVThzYhn5Jb7wkqdPjHzAB3 atcfdcRDwTeZAoo5HuoXm+eXojV/2v/vRBS1BW1D54sR8CLAAwWeZQOU7G5ulJ8P hBAXRfFncWDLHEnz+fm4Pdksr3+jxg== =CJx8 -----END PGP SIGNATURE----- --Ax4Eeh3fAzSZX7v9RGQhIXM6wYYxxKEFM--