[opensuse] A good network mapping program?

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Anthony M Simonelli

1 Jan 2009 1 Jan '09

17:42

Does anyone know of a good network mapping program or collection of programs to help in this area? I administer a small businesses network (60 workstations) and everything runs really well, but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc. I have a simple amount of experience with networking so if my question isn't making a lot of sense, can you please tell me? Any help is appreciated. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

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Rajko M.

1 Jan 1 Jan

18:14

On Thursday 01 January 2009 11:42:48 am Anthony M Simonelli wrote:

...

but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc.

My, recently discovered, favorite is Wireshark. I know that I can see all traffic on a home network, though, I can't tell how much you can do on a bigger network with more than one segment. -- Regards, Rajko -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

James Knott

21:50

Rajko M. wrote:

...

On Thursday 01 January 2009 11:42:48 am Anthony M Simonelli wrote:

...
but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc.

My, recently discovered, favorite is Wireshark. I know that I can see all traffic on a home network, though, I can't tell how much you can do on a bigger network with more than one segment.

Like other apps, Wireshark can be run on a remote computer, though you'll have to consider the bandwidth it requires to do so. -- Use OpenOffice.org http://www.openoffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

Martin Mielke

2 Jan 2 Jan

03:42

Hi, ntop could be of interest too... http://www.ntop.org/overview.html HTH Martin ----- Original Message ----

...

From: James Knott To: SUSE Linux Sent: Thursday, January 1, 2009 10:50:23 PM Subject: Re: [opensuse] A good network mapping program?

Rajko M. wrote:

...
On Thursday 01 January 2009 11:42:48 am Anthony M Simonelli wrote:

...
but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc.

My, recently discovered, favorite is Wireshark. I know that I can see all traffic on a home network, though, I can't tell how much you can do on a bigger network with more than one segment.

Like other apps, Wireshark can be run on a remote computer, though you'll have to consider the bandwidth it requires to do so.

-- Use OpenOffice.org -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

-- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

Carlos E. R.

1 Jan 1 Jan

19:54

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thursday, 2009-01-01 at 11:42 -0600, Anthony M Simonelli wrote:

...

Does anyone know of a good network mapping program or collection of programs to help in this area?

Perhaps ntop. It is a daemon. It collects info about the traffic it sees, calculates stats, and you can see them in a local webpage. To see all your network you need that your machine is connected to a privileged port in the switch, so that it sees all traffic. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux) iEYEARECAAYFAkldH4YACgkQtTMYHG2NR9VhmgCfaiWmRL5yByMxJCVRYKq4AdE1 aN8AoId4wm3rfJ1Utpbz1OrP7Lhqal4h =Ad1l -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

James Bland

20:26

On Thu, Jan 1, 2009 at 2:54 PM, Carlos E. R. wrote:

...

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1

On Thursday, 2009-01-01 at 11:42 -0600, Anthony M Simonelli wrote:

...
Does anyone know of a good network mapping program or collection of programs to help in this area?

Perhaps ntop.

It is a daemon. It collects info about the traffic it sees, calculates stats, and you can see them in a local webpage. To see all your network you need that your machine is connected to a privileged port in the switch, so that it sees all traffic.

- -- Cheers, Carlos E. R.

-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (GNU/Linux)

iEYEARECAAYFAkldH4YACgkQtTMYHG2NR9VhmgCfaiWmRL5yByMxJCVRYKq4AdE1 aN8AoId4wm3rfJ1Utpbz1OrP7Lhqal4h =Ad1l -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

I've used a combination of ntop, wireshark, and switch port mirroring to monitor small networks. If you have SNMP enabled on your devices you can also use nagios. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

peter nikolic

21:20

On Thursday 01 January 2009, Anthony M Simonelli wrote:

...

Does anyone know of a good network mapping program or collection of programs to help in this area? I administer a small businesses network (60 workstations) and everything runs really well, but lately I've been experiencing strange problems. I'm looking for a way to detect bottle necks, improve performance, visually map my network based on detected nodes, etc. I have a simple amount of experience with networking so if my question isn't making a lot of sense, can you please tell me? Any help is appreciated.

One program i found very usefull a while ago is one called "Tvark" it gave a very usefill grapical display of traffic routing , I found a few windows PC on a large network with outside internet connections that were trying to act as extra DNS servers causing big bottle necks . Pete . -- SuSE Linux 10.3-Alpha3. (Linux is like a wigwam - no Gates, no Windows, and an Apache inside.) -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

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participants (7)

Anthony M Simonelli
Carlos E. R.
James Bland
James Knott
Martin Mielke
peter nikolic
Rajko M.