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Jason
2003-12-29, 22:04
My apologies I was thinking of some other stuff he should block, namely WINS
garbage in addition to ICMP non-initiated messages.

-----Original Message-----
From: discuss-bounces (AT) lists (DOT) slimdevices.com
[mailto:discuss-bounces (AT) lists (DOT) slimdevices.com] On Behalf Of Enno Davids
Sent: Monday, December 29, 2003 9:51 PM
To: Slim Devices Discussion
Subject: [slim] Player being pinged?

On Mon, Dec 29, 2003 at 09:44:17PM -0700, Jason wrote:
|Someone is running port scanners on you. You need to tighten up your
|router/firewall and for one thing block port 43 which is ICMP requests,
aka,
|pings and the like.

Ummm, icmp is not in the normal port spaces of tcp or udp... Yes you should
block it but there will be special syntax to do so. If you can, try just
blocking incoming echo request packets, that way things like port
unreachables
from other places you try to talk to can still get to you.


Enno.



|
|-----Original Message-----
|From: discuss-bounces (AT) lists (DOT) slimdevices.com
|[mailto:discuss-bounces (AT) lists (DOT) slimdevices.com] On Behalf Of Daniel Brogan
|Sent: Monday, December 29, 2003 8:48 PM
|To: discuss (AT) lists (DOT) slimdevices.com
|Subject: [slim] Player being pinged?
|
|Last night and again tonight I noticed that my SLIMP3's display is
|reporting that it's being pinged every minute or so. Some of the IPs
|are the same, some are close to each other, all seem to be coming from
|my ISP (but not my internal network).
|
|Should I be concerned? What can I do to trace the source(s) of these
|pings?
|
|Thanks.
|
|-Dan
|
|

Roy M. Silvernail
2003-12-29, 22:22
On Tuesday 30 December 2003 00:04, Jason wrote:
> My apologies I was thinking of some other stuff he should block, namely
> WINS garbage in addition to ICMP non-initiated messages.

I just set my firewall to drop all unsolicited incoming packets except for
port 22 (ssh) and port 143 (IMAP, so my cell phone can check its account),
which get forwarded.

>
> -----Original Message-----
> From: discuss-bounces (AT) lists (DOT) slimdevices.com
> [mailto:discuss-bounces (AT) lists (DOT) slimdevices.com] On Behalf Of Enno Davids
> Sent: Monday, December 29, 2003 9:51 PM
> To: Slim Devices Discussion
> Subject: [slim] Player being pinged?
>
> On Mon, Dec 29, 2003 at 09:44:17PM -0700, Jason wrote:
> |Someone is running port scanners on you. You need to tighten up your
> |router/firewall and for one thing block port 43 which is ICMP requests,
>
> aka,
>
> |pings and the like.
>
> Ummm, icmp is not in the normal port spaces of tcp or udp... Yes you should
> block it but there will be special syntax to do so. If you can, try just
> blocking incoming echo request packets, that way things like port
> unreachables
> from other places you try to talk to can still get to you.
>
>
> Enno.
>
> |-----Original Message-----
> |From: discuss-bounces (AT) lists (DOT) slimdevices.com
> |[mailto:discuss-bounces (AT) lists (DOT) slimdevices.com] On Behalf Of Daniel Brogan
> |Sent: Monday, December 29, 2003 8:48 PM
> |To: discuss (AT) lists (DOT) slimdevices.com
> |Subject: [slim] Player being pinged?
> |
> |Last night and again tonight I noticed that my SLIMP3's display is
> |reporting that it's being pinged every minute or so. Some of the IPs
> |are the same, some are close to each other, all seem to be coming from
> |my ISP (but not my internal network).
> |
> |Should I be concerned? What can I do to trace the source(s) of these
> |pings?
> |
> |Thanks.
> |
> |-Dan
> |
> |