From ca3c397793f67b0758ea9e16102852361034bcb6 Mon Sep 17 00:00:00 2001 From: Arturo Borrero Gonzalez Date: Fri, 16 Mar 2018 19:24:36 +0100 Subject: iptables: add xtables-translate.8 manpage This new manpage describes how to operate the translation tools for nftables. Signed-off-by: Arturo Borrero Gonzalez Signed-off-by: Florian Westphal --- iptables/xtables-translate.8 | 134 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 134 insertions(+) create mode 100644 iptables/xtables-translate.8 (limited to 'iptables/xtables-translate.8') diff --git a/iptables/xtables-translate.8 b/iptables/xtables-translate.8 new file mode 100644 index 00000000..1968239b --- /dev/null +++ b/iptables/xtables-translate.8 @@ -0,0 +1,134 @@ +.\" +.\" (C) Copyright 2018, Arturo Borrero Gonzalez +.\" +.\" %%%LICENSE_START(GPLv2+_DOC_FULL) +.\" This is free documentation; you can redistribute it and/or +.\" modify it under the terms of the GNU General Public License as +.\" published by the Free Software Foundation; either version 2 of +.\" the License, or (at your option) any later version. +.\" +.\" The GNU General Public License's references to "object code" +.\" and "executables" are to be interpreted as the output of any +.\" document formatting or typesetting system, including +.\" intermediate and printed output. +.\" +.\" This manual is distributed in the hope that it will be useful, +.\" but WITHOUT ANY WARRANTY; without even the implied warranty of +.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +.\" GNU General Public License for more details. +.\" +.\" You should have received a copy of the GNU General Public +.\" License along with this manual; if not, see +.\" . +.\" %%%LICENSE_END +.\" +.TH XTABLES-TRANSLATE 8 "Mar 16, 2018" + +.SH NAME +xtables-translate \- translation tools to migrate from iptables to nftables + +.SH DESCRIPTION +There is a set of tools to help the system administrator translate a given +ruleset from \fBiptables(8)\fP and \fBip6tables(8)\fP to \fBnftables(8)\fP. + +The available commands are: + +.IP \[bu] 2 +iptables-translate +.IP \[bu] +iptables-restore-translate +.IP \[bu] 2 +ip6tables-translate +.IP \[bu] +ip6tables-restore-translate + +.SH USAGE +They take as input the original \fBiptables(8)\fP/\fBip6tables(8)\fP syntax and +output the native \fBnftables(8)\fP syntax. + +The \fBiptables-restore-translate\fP tool reads a ruleset in the syntax +produced by \fBiptables-save(8)\fP. Likewise, the +\fBip6tables-restore-translate\fP tool reads one produced by +\fBip6tables-save(8)\fP. + +The \fBiptables-translate\fP reads a command line as if it was entered to +\fBiptables(8)\fP, and \fBip6tables-translate\fP reads a command like as if it +was entered to \fBip6tables(8)\fP. + +.SH EXAMPLES +Basic operation examples. + +Single command translation: + +.nf +root@machine:~# iptables-translate -A INPUT -p tcp --dport 22 -m conntrack --ctstate NEW -j ACCEPT +nft add rule ip filter INPUT tcp dport 22 ct state new counter accept + +root@machine:~# ip6tables-translate -A FORWARD -i eth0 -o eth3 -p udp -m multiport --dports 111,222 -j ACCEPT +nft add rule ip6 filter FORWARD iifname eth0 oifname eth3 meta l4proto udp udp dport { 111,222} counter accept +.fi + +Whole ruleset translation: + +.nf +root@machine:~# iptables-save > save.txt +root@machine:~# cat save.txt +# Generated by iptables-save v1.6.0 on Sat Dec 24 14:26:40 2016 +*filter +:INPUT ACCEPT [5166:1752111] +:FORWARD ACCEPT [0:0] +:OUTPUT ACCEPT [5058:628693] +-A FORWARD -p tcp -m tcp --dport 22 -m conntrack --ctstate NEW -j ACCEPT +COMMIT +# Completed on Sat Dec 24 14:26:40 2016 + +root@machine:~# iptables-restore-translate -f save.txt +# Translated by iptables-restore-translate v1.6.0 on Sat Dec 24 14:26:59 2016 +add table ip filter +add chain ip filter INPUT { type filter hook input priority 0; } +add chain ip filter FORWARD { type filter hook forward priority 0; } +add chain ip filter OUTPUT { type filter hook output priority 0; } +add rule ip filter FORWARD tcp dport 22 ct state new counter accept + +root@machine:~# iptables-restore-translate -f save.txt > ruleset.nft +root@machine:~# nft -f ruleset.nft +root@machine:~# nft list ruleset +table ip filter { + chain INPUT { + type filter hook input priority 0; policy accept; + } + + chain FORWARD { + type filter hook forward priority 0; policy accept; + tcp dport ssh ct state new counter packets 0 bytes 0 accept + } + + chain OUTPUT { + type filter hook output priority 0; policy accept; + } +} +.fi + + +.SH LIMITATIONS +Some (few) extensions may be not supported (or fully-supported) for whatever +reason (for example, they were considered obsolete, or we didn't have the time +to work on them). + +There are no translations available for \fBebtables(8)\fP and +\fBarptables(8)\fP. + +To get up-to-date information about this, please head to +\fBhttps://wiki.nftables.org/\fP. + +.SH SEE ALSO +\fBnft(8)\fP, \fBxtables-compat(8)\fP + +.SH AUTHORS +The nftables framework is written by the Netfilter project +(https://www.netfilter.org). + +This manual page was written by Arturo Borrero Gonzalez +. + +This documentation is free/libre under the terms of the GPLv2+. -- cgit v1.2.3