right form for sources.list entries

I've been trying to add a certain entry to my sources.list file (this is
Ubuntu--a newer Debian variant) but cannot puzzle out the right form for
it. I've looked at the Apt how to at Debian's site, as well as the
sources.list manpage: I didn't read them from beginning to end, but
looking in the places that seemed most relevant didn't turn up the answer.
This is not a standard Debian source, but a related project. Part of the
problem here is that the documentation wants to show you how standard,
Debian entries look and to explain the components. But since I'm not
using a standard Debian source, I suppose I'll need to transpose them
somehow to my situation. But I can't find the right information to allow
me to do the transposing. Maybe someone here can help? The source I'm
trying to add is:

deb http://wine.sourceforge.net/Ubuntu/apt/ binary/

This is the way the url was listed in a posting I found. I checked the
url and it is active, and sure enough, in the binary directory, there is a
Packages.gz file as I understand there should be. When I add that line to
sources.list and then start Synaptic (sissified gui thingy for apt) I get
an error message about "couldn't stat source package." What am I doing
wrong, and how do I add this entry successfully to sources.list?

Thanks, James
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Re: right form for sources.list entries

On Tue, 7 Dec 2004, James Miller wrote:

> I've been trying to add a certain entry to my sources.list file (this is
> Ubuntu--a newer Debian variant) but cannot puzzle out the right form for
> it. I've looked at the Apt how to at Debian's site, as well as the
> sources.list manpage: I didn't read them from beginning to end, but
> looking in the places that seemed most relevant didn't turn up the answer.
> This is not a standard Debian source, but a related project. Part of the
> problem here is that the documentation wants to show you how standard,
> Debian entries look and to explain the components. But since I'm not
> using a standard Debian source, I suppose I'll need to transpose them
> somehow to my situation. But I can't find the right information to allow
> me to do the transposing. Maybe someone here can help? The source I'm
> trying to add is:
>
> deb http://wine.sourceforge.net/Ubuntu/apt/ binary/
>
> This is the way the url was listed in a posting I found. I checked the
> url and it is active, and sure enough, in the binary directory, there is a
> Packages.gz file as I understand there should be. When I add that line to
> sources.list and then start Synaptic (sissified gui thingy for apt) I get
> an error message about "couldn't stat source package." What am I doing
> wrong, and how do I add this entry successfully to sources.list?
>
> Thanks, James

Wednesday, December 08 03:38:31

Maybe this will help you further.. ?
article At: http://rage.against.org/UbuntuInstall

After some Googling, I found this "reported" bug. The solution apparently
lies in installing a lot of packages which weren't bundled on the
distribution or apt sources (licensing issues), by uncommenting the two
lines with repository "universe" on /etc/apt/sources.list (basically gives
you access to software unsupported by the Ubuntu team and which may not be
under a free license) and add
deb http://archive.ubuntu.com/ubuntu/ warty multiverse
to the same file, issuing "apt-get update" afterwards.

G00G0ldLuCk.. ;-)

J.

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Re: right form for sources.list entries

On Wed, 8 Dec 2004, J. wrote:

> After some Googling, I found this "reported" bug. The solution apparently
> lies in installing a lot of packages which weren't bundled on the
> distribution or apt sources (licensing issues), by uncommenting the two
> lines with repository "universe" on /etc/apt/sources.list (basically gives
> you access to software unsupported by the Ubuntu team and which may not be
> under a free license) and add

Adding universe to sources.list was actually the first thing I did after
installation. I also installed WINE using those sources--the object of
the current attempt to edit sources.list. But I've heard and read that
Debian, and thus Ubuntu, maintainership for WINE is faltering. Someone on
the Ubuntu project is taking over maintaining WINE, and has made packages
temporarily available for download/apt-get in the interim until they work
their way into the package lists/repositories. So, it's this package I'm
trying to get one, from a "backport" or unofficial repository. That's the
one I need to figure how to add the URI for--i.e., to figure out how
Debian expects the URI to be formed. Experimentation and doc reading have
thus far not produced the solution. Anyone else on this?

James
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Re: right form for sources.list entries

At 09:59 PM 12/7/2004 -0600, James Miller wrote:
>On Wed, 8 Dec 2004, J. wrote:
>
> > After some Googling, I found this "reported" bug. The solution apparently
> > lies in installing a lot of packages which weren't bundled on the
> > distribution or apt sources (licensing issues), by uncommenting the two
> > lines with repository "universe" on /etc/apt/sources.list (basically gives
> > you access to software unsupported by the Ubuntu team and which may not be
> > under a free license) and add
>
>Adding universe to sources.list was actually the first thing I did after
>installation. I also installed WINE using those sources--the object of
>the current attempt to edit sources.list. But I've heard and read that
>Debian, and thus Ubuntu, maintainership for WINE is faltering. Someone on
>the Ubuntu project is taking over maintaining WINE, and has made packages
>temporarily available for download/apt-get in the interim until they work
>their way into the package lists/repositories. So, it's this package I'm
>trying to get one, from a "backport" or unofficial repository. That's the
>one I need to figure how to add the URI for--i.e., to figure out how
>Debian expects the URI to be formed. Experimentation and doc reading have
>thus far not produced the solution. Anyone else on this?


I cannot be certain of this, but I **think** the problem is with the site,
not with your attempts to structure a URL. In Debian proper (I don't use
Ubunto, but I think Ubuntu gets its apt-* implementation straight from
Debian), the structure of an entry in sources.list (for binaries) is

deb URL distro_directory [optional added identifiers for subdirectories]

The man page (for sources.list) is NOT clear on this next part. But from
looking at a bunch of Debian archives, it appears that apt-get expects to
find a ./dists step in the path that is not present at the Sourceforge URL
you are trying. That is, if your sources.list entry is (this is a real
example, BTW) ...

deb ftp://ftp.nerim.net/debian-marillat/ unstable main

.... the files (including Packages.gz) will be found in ...

ftp://ftp.nerim.net/debian-marillat/dists/unstable/main

(in this actual example, in subdirectories below this level that separate
source and binaries).

To check more on this, look at some of the sites listed at this directory
of unofficial Debian package repositories:

http://www.apt-get.org/

The couple I checked followed the pattern I illustrate above.

It seems to me that I've run into the same problem as you're having before,
and I wasn't able to fix it. That is, I had to resort to the workaround of
downloading the packages I wanted in some ordinary way (http or ftp),
putting them someplace sensible on the target system, and using dpkg
instead of apt-get to install them.

Lousy solution, but better than none at all. If you find a better one,
please post it.



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tcpdump: How do I filter "bootp" packets?

Howdy:

I have cable modem access to the internet now and the download speed is
double my original DSL speed. :-) However, I am concerned about
security.

Can other cable modem subscribers see my packets?

To test this, I am trying to use tcpdump to monitor packets that my
cable modem is sending to my 'router'.

I am using these arguments:
tcpdump -i eth1 -c 9 -nt not arp and not host W.X.Y.Z > \
http://gelm.net/tcpdump.txt


( == My assigned IP address)

I am still seeing many 'bootp' packets.

How do filter out 'bootp' packets with tcpdump?

Regards, Chuck

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Re: tcpdump: How do I filter "bootp" packets?

At 08:13 AM 12/8/2004 -0500, chuck gelm wrote:
>Howdy:
>
> I have cable modem access to the internet now and the download speed is
>double my original DSL speed. :-) However, I am concerned about
>security.
>
> Can other cable modem subscribers see my packets?
>
> To test this, I am trying to use tcpdump to monitor packets that my
>cable modem is sending to my 'router'.
>
> I am using these arguments:
>tcpdump -i eth1 -c 9 -nt not arp and not host W.X.Y.Z > \
>http://gelm.net/tcpdump.txt
>
>
> ( == My assigned IP address)
>
> I am still seeing many 'bootp' packets.
>
>How do filter out 'bootp' packets with tcpdump?

Since bootp packets necessarily preceed assignment of an IP address, they
are commonly broadcast (255.255.255.255) packets, removing the option of
filtering by address. But they do come from standaard ports -- 67 for the
server, 68 for the client -- so you can try filtering on port number.

Information connecting port numbers to service labels can be found in
/etc/services (for the common ones), for future reference.







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Re: tcpdump: How do I filter "bootp" packets?

chuck gelm wrote:
> Howdy:
>
> I have cable modem access to the internet now and the download speed is
> double my original DSL speed. :-) However, I am concerned about
> security.
>
> Can other cable modem subscribers see my packets?
>

IIRC, most modern cable modems filter anything not addressed to them - you'd have
to hack your modem to get it to go into promiscuous mode.

It's not easy to do, and it relies on brain-dead network admins to leave some back
doors in.

OTOH, you could probably find hardware to do just this - if you were in law
enforcement.

> To test this, I am trying to use tcpdump to monitor packets that my
> cable modem is sending to my 'router'.
>
> I am using these arguments:
> tcpdump -i eth1 -c 9 -nt not arp and not host W.X.Y.Z > \
> http://gelm.net/tcpdump.txt
>
>
> ( == My assigned IP address)
>
> I am still seeing many 'bootp' packets.
>
> How do filter out 'bootp' packets with tcpdump?
>
> Regards, Chuck
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-newbie" in
> the body of a message to majordomo@vger.kernel.org
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Re: tcpdump: How do I filter "bootp" packets?

Jim Nelson wrote:
> chuck gelm wrote:
>
>> Howdy:
>>
>> I have cable modem access to the internet now and the download speed is
>> double my original DSL speed. :-) However, I am concerned about
>> security.
>>
>> Can other cable modem subscribers see my packets?
>>
>
> IIRC, most modern cable modems filter anything not addressed to them -
> you'd have to hack your modem to get it to go into promiscuous mode.
>
> It's not easy to do, and it relies on brain-dead network admins to leave
> some back doors in.
>
> OTOH, you could probably find hardware to do just this - if you were in
> law enforcement.
>
>> To test this, I am trying to use tcpdump to monitor packets that my
>> cable modem is sending to my 'router'.
>>
>> I am using these arguments:
>> tcpdump -i eth1 -c 9 -nt not arp and not host W.X.Y.Z > \
>> http://gelm.net/tcpdump.txt
>>
>>
>> ( == My assigned IP address)
>>
>> I am still seeing many 'bootp' packets.
>>
>> How do filter out 'bootp' packets with tcpdump?
>>
>> Regards, Chuck

Hi, Jim:

I am filtering 'my ip', port 67, and 'arp' and, for several minutes
now, tcpdump has displayed zero packets. So, I seems that...

It would require special hardware for others to view my packets.

I wanted to be sure that it wouldn't be easy.

Regards, Chuck


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