Apache Proxy
Pavel JANIK ml.
pjanik at aida.inet.cz
Fri Jul 18 11:58:16 CEST 1997
> ramcove a o detailech bych vykladat nemohl. Pokud se najde nekdo, kdo
> by tady mohl povykladat, k cemu je CONFIG_IP_MASQUERADE dobre a jak to
> funguje, velice rad si to prectu.
/usr/src/linux/Documentation/Configure.help:
IP: masquerading
CONFIG_IP_MASQUERADE
If one of the computers on your local network for which your Linux
box acts as a firewall wants to send something to the outside, your
box can "masquerade" as that computer, i.e. it forwards the traffic
to the intended outside destination, but makes it look like it came
from the firewall box itself. It works both ways: if the outside
host replies, the Linux firewall will silently forward the traffic
to the corresponding local computer. This way, the computers on your
local net are completely invisible to the outside world, even though
they can reach the outside and can be reached. This makes it
possible to have the computers on the local network participate on
the internet even if they don't have officially registered IP
addresses. (This last problem can also be solved by connecting the
Linux box to the Internet using SLiRP [SLiRP is a SLIP/PPP emulator
that works if you have a regular dial up shell account on some UNIX
computer; get it via ftp (user: anonymous) from
ftp://sunsite.unc.edu/pub/Linux/system/Network/serial/].) Details
on how to set things up are contained in the IP Masquerading FAQ,
available at http://www.indyramp.com/masq/. If you say Y here, then
=============================
the modules ip_masq_ftp.o (for ftp transfers through the firewall),
ip_masq_irc.o (for irc chats through the firewall), and
ip_masq_raudio.o (for realaudio downloads through the firewall) will
automatically be compiled. Modules are pieces of code which can be
inserted in and removed from the running kernel whenever you want;
read Documentation/modules.txt for details.
> Ale jinak se vasi poznamce nedivim - kdybych ja nekoho pristihnul takovym
> zpusobem sirit desinformace o Linuxu, taky bych branil Linux zuby nehty.
Dekuji :-)
PJ
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