Outgoing TCP/IP traffic redirection

Hi there.
I need to configure xinetd so it redirects traffic outgoing to
specific IP:port1a to localhost:port1b
I've heard about iptables to do this but I'm using cygwin and only
xinetd seems to be good solution.

I've read manuals but they seem to be little bit complex for me. All I
want is to do sth like:

IP1:port1a ---redirect---> localhost:port1b
IP1:port2a ---redirect---> localhost:port2b
IP1:port3a ---redirect---> localhost:port3b

i.e create something like "virtual" IPs - similar like /etc/hosts file
does - only not for hostnames but for IP:port keys.

Somebody please give a tip?

--
Regards
Yatsek

In comp.os.linux.networking yatsek@gmail.com:
> Hi there.
> I need to configure xinetd so it redirects traffic outgoing to
> specific IP:port1a to localhost:port1b
> I've heard about iptables to do this but I'm using cygwin and only
> xinetd seems to be good solution.

And this has to do with Linux?

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo zvpunry@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 24: network packets travelling uphill (use a
carrier pigeon)

yatsek@gmail.com wrote:

> Hi there.
> I need to configure xinetd so it redirects traffic outgoing to
> specific IP:port1a to localhost:port1b
> I've heard about iptables to do this but I'm using cygwin and only
> xinetd seems to be good solution.

Uh? In the same breath you mention cygwin (implies not *nix OS) and iptables
(implies linux).

xinetd is a super-server, it will not help you here as it only handles
incoming traffic.

I think you should give us a detailed description of the OS that you want to
do this on.

> I've read manuals but they seem to be little bit complex for me. All I
> want is to do sth like:
>
> IP1:port1a ---redirect---> localhost:port1b
> IP1:port2a ---redirect---> localhost:port2b
> IP1:port3a ---redirect---> localhost:port3b
>
> i.e create something like "virtual" IPs - similar like /etc/hosts file
> does - only not for hostnames but for IP:port keys.
>
> Somebody please give a tip?
>
> --
> Regards
> Yatsek

On Jul 18, 4:39 pm, Michael Heiming <michael+USE...@www.heiming.de>
wrote:
> In comp.os.linux.networking yat...@gmail.com:
>
> > Hi there.
> > I need to configure xinetd so it redirects traffic outgoing to
> > specific IP:port1a to localhost:port1b
> > I've heard about iptables to do this but I'm using cygwin and only
> > xinetd seems to be good solution.
>
> And this has to do with Linux?
>
> --
> Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
> mail: echo zvpu...@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
> #bofh excuse 24: network packets travelling uphill (use a
> carrier pigeon)

Supposed to hear something like that. Please don't waste net
connection to post this kind of replies.

I thought that xinetd is from linux - so this is Linux-related part -
oh silly me.
If you can't give response just don't open your mouth. I've had really
enough of $#@$-people like that. Because of #@$!@ like you our (yes
I'm Linux-guy too) community is being seen as crowd of morons. So if
you can't give anything else than RTFM or similar then GO AWAY.

I'm programmer, not sys admin using windows-box at work (why oh why I
have to give this kind of excuses to make myself "look better" in the
eyes of "community"). I need xinetd config help. I've looked through
tones of Google/manuals and probably anything possible web-available
content to find and just couldn't get neccessary information - so I'm
asking.

Thx for really good response.


> Uh? In the same breath you mention cygwin (implies not *nix OS) and iptables
> (implies linux).
>
> xinetd is a super-server, it will not help you here as it only handles
> incoming traffic.

Yeah - I've figured that already out. I'm using windows-box (XP Pro)
and I've already digged through this problem. Looks like there is no
simple way to handle this - creating a loopback and later trying
something to do with this seems only reasonable thing. Maybe I'll try
to solve by using some linux on qemu with 3 ethernet cards and later
to play with iptables. Seems only possible solution for now.

But if you know of anything helpful on WinXP I'll be glad to hear
something.

Regards
Yatsek


>
> I think you should give us a detailed description of the OS that you want to
> do this on.
>
> > I've read manuals but they seem to be little bit complex for me. All I
> > want is to do sth like:
>
> > IP1:port1a ---redirect---> localhost:port1b
> > IP1:port2a ---redirect---> localhost:port2b
> > IP1:port3a ---redirect---> localhost:port3b
>
> > i.e create something like "virtual" IPs - similar like /etc/hosts file
> > does - only not for hostnames but for IP:port keys.
>
> > Somebody please give a tip?
>
> > --
> > Regards
> > Yatsek

In comp.os.linux.networking yatsek@gmail.com:
> On Jul 18, 4:39 pm, Michael Heiming <michael+USE...@www.heiming.de>
> wrote:
>> In comp.os.linux.networking yat...@gmail.com:

>> > Hi there.
>> > I need to configure xinetd so it redirects traffic outgoing to
>> > specific IP:port1a to localhost:port1b
>> > I've heard about iptables to do this but I'm using cygwin and only
>> > xinetd seems to be good solution.

>> And this has to do with Linux?

> Supposed to hear something like that. Please don't waste net
> connection to post this kind of replies.

> I thought that xinetd is from linux - so this is Linux-related part -
> oh silly me.

Indeed, but it dosen't have to do anything with redirecting
TCP/IP, which is obvious from the first 3 lines of its fine
manual.

NAME
xinetd - the extended Internet services daemon

DESCRIPTION
xinetd performs the same function as inetd: it starts
programs that provide Internet services.

> If you can't give response just don't open your mouth. I've had really
> enough of $#@$-people like that. Because of #@$!@ like you our (yes
> I'm Linux-guy too) community is being seen as crowd of morons. So if
> you can't give anything else than RTFM or similar then GO AWAY.

> I'm programmer, not sys admin using windows-box at work (why oh why I
> have to give this kind of excuses to make myself "look better" in the
> eyes of "community"). I need xinetd config help. I've looked through
> tones of Google/manuals and probably anything possible web-available
> content to find and just couldn't get neccessary information - so I'm
> asking.

No you didn't really looked anywhere or it is just because you
aren't running Linux, as in the name of this ng.

$ man -k xinetd
system-config-services (rpm) - system-config-services is an
initscript and xinetd configuration utility
xinetd (8) - the extended Internet services daemon
xinetd.conf [xinetd] (5) - Extended Internet Services Daemon
configuration file
xinetd.log [xinetd] (8) - xinetd service log format
xinetd (rpm) - A secure replacement for inetd.

The needed info should be installed with xinetd on any Linux box.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo zvpunry@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 168: le0: no carrier: transceiver cable problem?

yatsek@gmail.com wrote:

> On Jul 18, 4:39 pm, Michael Heiming <michael+USE...@www.heiming.de>
> wrote:
>> In comp.os.linux.networking yat...@gmail.com:
>>
>> > Hi there.
>> > I need to configure xinetd so it redirects traffic outgoing to
>> > specific IP:port1a to localhost:port1b
>> > I've heard about iptables to do this but I'm using cygwin and only
>> > xinetd seems to be good solution.
>>
>> And this has to do with Linux?
>>
>> --
>> Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
>> mail: echo zvpu...@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
>> #bofh excuse 24: network packets travelling uphill (use a
>> carrier pigeon)
>
> Supposed to hear something like that. Please don't waste net
> connection to post this kind of replies.
>
> I thought that xinetd is from linux - so this is Linux-related part -
> oh silly me.
> If you can't give response just don't open your mouth. I've had really
> enough of $#@$-people like that. Because of #@$!@ like you our (yes
> I'm Linux-guy too) community is being seen as crowd of morons. So if
> you can't give anything else than RTFM or similar then GO AWAY.
>
> I'm programmer, not sys admin using windows-box at work (why oh why I
> have to give this kind of excuses to make myself "look better" in the
> eyes of "community"). I need xinetd config help. I've looked through
> tones of Google/manuals and probably anything possible web-available
> content to find and just couldn't get neccessary information - so I'm
> asking.

These guys are helping you of their own free will and in their own time.
They don't deserve this blast of anger. They could always blacklist you;
that would certainly save bandwidth. Instead, Michael ignored the anger
and answered the question.

It isn't so much a question of their not helping. You are trying to make
xinetd do something that it can't do, and asking them to help you do
it. "The impossible takes a little longer..." Just saying "xinetd comes
with Linux so it must be the tool" isn't exactly scientific.

If you had shown that you had the background, you would not have needed to
tell us you are a programmer. If this is outside your area of expertise, I
have a more positive suggestion: adopt a newbie approach. Take a look at
http://www.catb.org/~esr/faqs/smart-questions.html . If you had given more
information to start with, the replies could have been more helpful
immediately. Personally, I can't help ... iptables sets up a firewall,
and there are many GUI programs for Linux that will help you with that.
AFAIK, it doesn't do any redirecting of traffic.

HTH,

Doug.
--
Ugliness is only skin deep.
- W.G.P.

> These guys are helping you of their own free will and in their own time.
> They don't deserve this blast of anger. They could always blacklist you;
> that would certainly save bandwidth. Instead, Michael ignored the anger
> and answered the question.
>
True. But not only them I'm also helping a lot of people at my own
free will, and at my own free time and help like "and this has what to
do with ...[put here filed of interest]..." is WORSE thing you can
answer. Much better would be "sorry xinetd doesn't work for that, try
another thing" - almost same number of letters to type, but much more:
- respect
- information
- treating other people like... human beings and not just as anoying
noobs (we're all noobs from some point of view unfortunatelly)

> It isn't so much a question of their not helping. You are trying to make
> xinetd do something that it can't do, and asking them to help you do
> it. "The impossible takes a little longer..." Just saying "xinetd comes
> with Linux so it must be the tool" isn't exactly scientific.
>

True. Again - I'm not 3-months linux newbie - I'm using Gentoo like 3
years as my main OS at home computer. But it doesn't mean that I'm pro
in networking field.

> If you had shown that you had the background, you would not have needed to
> tell us you are a programmer. If this is outside your area of expertise, I
> have a more positive suggestion: adopt a newbie approach. Take a look athttp://www.catb.org/~esr/faqs/smart-questions.html. If you had given more
> information to start with, the replies could have been more helpful
> immediately. Personally, I can't help ... iptables sets up a firewall,
> and there are many GUI programs for Linux that will help you with that.
> AFAIK, it doesn't do any redirecting of traffic.
>
> HTH,
>
> Doug.
> --
> Ugliness is only skin deep.
> - W.G.P.

Maybe after all I've overreacted - sorry about that - bad day spend
for looking for answers and nothing been found :/ . All I want to say
is that sometimes before closing door ("and what are you looking for
here boy?!") just point out finger to show a newbie at least some
direction to look for.

On the other hand I see that I've chosen right place to ask - this
doesn't seem to be trivial nor newbie problem so I expected a little
bit more comprehend information :)

Anyway thx for help. Now I have it working - through Qemu and some
small distro which requires only 16 MB of RAM. Windows can't do this
"virtual IP" thing.

Greetings
Yatsek

In comp.os.linux.networking yatsek@gmail.com:

>> These guys are helping you of their own free will and in their own time.
>> They don't deserve this blast of anger. They could always blacklist you;
>> that would certainly save bandwidth. Instead, Michael ignored the anger
>> and answered the question.
>>
> True. But not only them I'm also helping a lot of people at my own
> free will, and at my own free time and help like "and this has what to
> do with ...[put here filed of interest]..." is WORSE thing you can
> answer. Much better would be "sorry xinetd doesn't work for that, try
> another thing" - almost same number of letters to type, but much more:
> - respect
> - information
> - treating other people like... human beings and not just as anoying
> noobs (we're all noobs from some point of view unfortunatelly)

This is just your misconception of usenet, if you are aware at
all what it is about, since you are using G2/?

Name: comp.os.linux.networking
Description: Networking any communications under Linux.

None did tread you anyhow, it is just the simple fact your
question is OT here.

--
Michael Heiming (X-PGP-Sig > GPG-Key ID: EDD27B94)
mail: echo zvpunry@urvzvat.qr | perl -pe 'y/a-z/n-za-m/'
#bofh excuse 372: Forced to support NT servers; sysadmins quit.