top level rules

top level rules

[Patrick Ahler]

Is there any way to insert a new rule at the top of a table...

For instance, I have rules...

RULE 1
RULE 2
RULE 3
RULE 4

in order... but what if I want to place a rule before rule 1? Is that
possible?
Thanks,
-Patrick

Re: top level rules

[Filip Sneppe]

On Mon, 2003-05-12 at 14:25, Patrick Ahler wrote:
> Is there any way to insert a new rule at the top of a table...
> 
> For instance, I have rules...
> 
> RULE 1
> RULE 2
> RULE 3
> RULE 4
> 
> in order... but what if I want to place a rule before rule 1? Is that
> possible?

Yes, just use the -I (insert) option of iptablesinstead of -A (append).

Regards,
Filip

Re: top level rules

[Moti Levy]

iptables -L -n --line0numbers will list the rule numbers 
iptables -I CHAINNAME rulenumber_to_insert REST OF RULE

----- Original Message ----- 
From: "Filip Sneppe" <filip.sneppe@cronos.be>
To: "Patrick Ahler" <patrick@vikus.com>
Cc: "netfilter EMAIL" <netfilter@lists.netfilter.org>
Sent: Monday, May 12, 2003 8:49 AM
Subject: Re: top level rules


> On Mon, 2003-05-12 at 14:25, Patrick Ahler wrote:
> > Is there any way to insert a new rule at the top of a table...
> > 
> > For instance, I have rules...
> > 
> > RULE 1
> > RULE 2
> > RULE 3
> > RULE 4
> > 
> > in order... but what if I want to place a rule before rule 1? Is that
> > possible?
> 
> Yes, just use the -I (insert) option of iptablesinstead of -A (append).
> 
> Regards,
> Filip
> 
> 
> 
> 

Re: top level rules

[Ray Leach]

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From the netfilter help (iptables --help)

"
 --insert  -I chain [rulenum]
                                Insert in chain as rulenum (default
1=first)
"

So ... iptable -I instead of iptables -A ....


On Mon, 2003-05-12 at 14:25, Patrick Ahler wrote:
> Is there any way to insert a new rule at the top of a table...
> 
> For instance, I have rules...
> 
> RULE 1
> RULE 2
> RULE 3
> RULE 4
> 
> in order... but what if I want to place a rule before rule 1? Is that
> possible?
> Thanks,
> -Patrick
> 
> 
> 

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RE: top level rules

[Rob Sterenborg]

> Is there any way to insert a new rule at the top of a table...

iptables -I INPUT 1 ...

See : man iptables.


Gr,
Rob

Re: top level rules

[Zander]

On Monday, May 12, 2003, at 13:25 Europe/London, Patrick Ahler wrote:

> Is there any way to insert a new rule at the top of a table...
>
> For instance, I have rules...
>
> RULE 1
> RULE 2
> RULE 3
> RULE 4
>
> in order... but what if I want to place a rule before rule 1? Is that
> possible?
> Thanks,
> -Patrick

/sbin/iptables -I <table> 1........

you can substitute the number for any position in the table: 2, 3 4 etc 
etc.

cheers

Zander