D7net Mini Sh3LL v1
| Current File : //libx32/../share/snapd/../locale/ia/../../doc/info/../libroken18-heimdal/../usbmuxd/../liberror-perl/../grub2-common/../libjpeg8/../php7.4-mysql/../gnupg/../python3-apt/../netplan.io/../wget/../libcurl3-gnutls/../libthai-data/../python3-six/../screen/../maria/../libxaw7/../libmnl0/../netplan/../gdisk/../systemd-sysv/../grep/../udisks2/../libacl1/../libxmlb1/../libperl5.30/../automake/../libmpfr6/../libxext6/../libctf0/../libgusb2/../libubsan1/../dbus/../python3-distro/../libpcre3/../eatmydata/../libhogweed5/../btrfs-progs/../libnettle7/../libmaxminddb0/../gdisk/../liblsan0/../libsm6/../strace/../libxslt1.1/../perl-base/../libargon2-1/../linux-modules-5.4.0-198-generic/../liblzma5/../apache2-utils/../libattr1/../libcc1-0/../libblkid1/../iptables/html/packet-filtering-HOWTO-10.html |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<HTML>
<HEAD>
<META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.73">
<TITLE>Linux 2.4 Packet Filtering HOWTO: Differences Between iptables and ipchains</TITLE>
<LINK HREF="packet-filtering-HOWTO-11.html" REL=next>
<LINK HREF="packet-filtering-HOWTO-9.html" REL=previous>
<LINK HREF="packet-filtering-HOWTO.html#toc10" REL=contents>
</HEAD>
<BODY>
<A HREF="packet-filtering-HOWTO-11.html">Next</A>
<A HREF="packet-filtering-HOWTO-9.html">Previous</A>
<A HREF="packet-filtering-HOWTO.html#toc10">Contents</A>
<HR>
<H2><A NAME="Appendix-A"></A> <A NAME="s10">10.</A> <A HREF="packet-filtering-HOWTO.html#toc10">Differences Between iptables and ipchains</A></H2>
<P>
<UL>
<LI> Firstly, the names of the built-in chains have changed from
lower case to UPPER case, because the INPUT and OUTPUT chains now only
get locally-destined and locally-generated packets. They used to see
all incoming and all outgoing packets respectively.
</LI>
<LI> The `-i' flag now means the incoming interface, and only works
in the INPUT and FORWARD chains. Rules in the FORWARD or OUTPUT
chains that used `-i' should be changed to `-o'.
</LI>
<LI> TCP and UDP ports now need to be spelled out with the
--source-port or --sport (or --destination-port/--dport) options, and
must be placed after the `-p tcp' or `-p udp' options, as this loads
the TCP or UDP extensions respectively.
</LI>
<LI> The TCP -y flag is now --syn, and must be after `-p tcp'.
</LI>
<LI> The DENY target is now DROP, finally.
</LI>
<LI> Zeroing single chains while listing them works.
</LI>
<LI> Zeroing built-in chains also clears policy counters.
</LI>
<LI> Listing chains gives you the counters as an atomic snapshot.
</LI>
<LI> REJECT and LOG are now extended targets, meaning they are
separate kernel modules.
</LI>
<LI> Chain names can be up to 31 characters.
</LI>
<LI> MASQ is now MASQUERADE and uses a different syntax. REDIRECT,
while keeping the same name, has also undergone a syntax change. See
the NAT-HOWTO for more information on how to configure both of these.
</LI>
<LI> The -o option is no longer used to direct packets to the userspace
device (see -i above). Packets are now sent to userspace via the QUEUE
target.
</LI>
<LI> Probably heaps of other things I forgot.</LI>
</UL>
</P>
<HR>
<A HREF="packet-filtering-HOWTO-11.html">Next</A>
<A HREF="packet-filtering-HOWTO-9.html">Previous</A>
<A HREF="packet-filtering-HOWTO.html#toc10">Contents</A>
</BODY>
</HTML>
AnonSec - 2021 | Recode By D7net