From Newsgroup: comp.os.linux.networking

Hi all. I'm trying to get to grips with iptables, but I'm flummoxed by this:

iptables> sudo iptables --table nat -D PREROUTING -p tcp --source \!192.168.0.0/24 --dport ssh -j REDIRECT --to-port 20022
iptables v1.8.7 (nf_tables): host/network `!192.168.0.0' not found
Try `iptables -h' or 'iptables --help' for more information.


So what is the syntax to make a rule match sources other than the given please?


Thanks.
--
Mike Scott
Harlow, England
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From Newsgroup: comp.os.linux.networking

On 26/11/2024 13:32, Mike Scott wrote:

Hi all. I'm trying to get to grips with iptables, but I'm flummoxed by
this:

iptables> sudo iptables --table nat -D PREROUTING -p tcp --source \!192.168.0.0/24 --dport ssh -j REDIRECT --to-port 20022
iptables v1.8.7 (nf_tables): host/network `!192.168.0.0' not found
Try `iptables -h' or 'iptables --help' for more information.

So what is the syntax to make a rule match sources other than the given please?

Thanks.

Grrr. The online man page (https://linux.die.net/man/8/iptables) I was
looking at is wrong. It should be ! -s <address> not -s !<address>

Not good.
--
Mike Scott
Harlow, England

--- Synchronet 3.20a-Linux NewsLink 1.114

From Newsgroup: comp.os.linux.networking

Mike Scott <usenet.16@scottsonline.org.uk.invalid> wrote:

Hi all. I'm trying to get to grips with iptables, but I'm flummoxed by this:

iptables> sudo iptables --table nat -D PREROUTING -p tcp --source >\!192.168.0.0/24 --dport ssh -j REDIRECT --to-port 20022
iptables v1.8.7 (nf_tables): host/network `!192.168.0.0' not found
Try `iptables -h' or 'iptables --help' for more information.

So what is the syntax to make a rule match sources other than the given >please?

I haven't used iptables directly in ages. Did you try putting
whitespace between the ! and the network?

Greetings
Marc
-- ---------------------------------------------------------------------------- Marc Haber | " Questions are the | Mailadresse im Header Rhein-Neckar, DE | Beginning of Wisdom " |
Nordisch by Nature | Lt. Worf, TNG "Rightful Heir" | Fon: *49 6224 1600402
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From Newsgroup: comp.os.linux.networking

On 26/11/2024 20:24, Marc Haber wrote:

Mike Scott <usenet.16@scottsonline.org.uk.invalid> wrote:

Hi all. I'm trying to get to grips with iptables, but I'm flummoxed by this: >>
iptables> sudo iptables --table nat -D PREROUTING -p tcp --source
\!192.168.0.0/24 --dport ssh -j REDIRECT --to-port 20022
iptables v1.8.7 (nf_tables): host/network `!192.168.0.0' not found
Try `iptables -h' or 'iptables --help' for more information.


So what is the syntax to make a rule match sources other than the given
please?

I haven't used iptables directly in ages. Did you try putting
whitespace between the ! and the network?

Greetings
Marc

Thanks for the reply.

I found the man page I looked at was wrong. The syntax is /not/
-s ! <address>, rather ! -s <address>.
--
Mike Scott
Harlow, England

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From Newsgroup: comp.os.linux.networking

Mike Scott <usenet.16@scottsonline.org.uk.invalid> wrote at 13:44 this Tuesday (GMT):

On 26/11/2024 13:32, Mike Scott wrote:

Hi all. I'm trying to get to grips with iptables, but I'm flummoxed by
this:

iptables> sudo iptables --table nat -D PREROUTING -p tcp --source
\!192.168.0.0/24 --dport ssh -j REDIRECT --to-port 20022
iptables v1.8.7 (nf_tables): host/network `!192.168.0.0' not found
Try `iptables -h' or 'iptables --help' for more information.


So what is the syntax to make a rule match sources other than the given
please?


Thanks.

Grrr. The online man page (https://linux.die.net/man/8/iptables) I was looking at is wrong. It should be ! -s <address> not -s !<address>

Not good.

Try emailing the webmaster?
--
user <candycane> is generated from /dev/urandom
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From Newsgroup: comp.os.linux.networking

On 30/11/2024 06:20, candycanearter07 wrote:

Try emailing the webmaster?

Done, but as they don't give contact info on their pages I assume
they're not welcoming input.
--
Mike Scott
Harlow, England

--- Synchronet 3.20a-Linux NewsLink 1.114

From Newsgroup: comp.os.linux.networking

On 03/12/2024 19:19, Mike Scott wrote:

On 30/11/2024 06:20, candycanearter07 wrote:

Try emailing the webmaster?

Done, but as they don't give contact info on their pages I assume
they're not welcoming input.

And the email to webmaster@... has just bounced (Operation timed out).
They really don't seem to want people to talk to them.
--
Mike Scott
Harlow, England

--- Synchronet 3.20a-Linux NewsLink 1.114

From Newsgroup: comp.os.linux.networking

On Mon, 9 Dec 2024 11:50:03 +0000, Mike Scott <usenet.16@scottsonline.org.uk.invalid> wrote:

On 03/12/2024 19:19, Mike Scott wrote:

On 30/11/2024 06:20, candycanearter07 wrote:

Try emailing the webmaster?

Done, but as they don't give contact info on their pages I assume
they're not welcoming input.

And the email to webmaster@... has just bounced (Operation timed out).
They really don't seem to want people to talk to them.

The maintainer's address is web at die dot net
It's right on the main page.
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