Re: randomly changing IPs from different subnets (Google Mail)

[/dev/rob0 <rob0@gmx.co.uk>]

On Wed, Jun 23, 2010 at 04:47:06PM +0300, Lars Nooden wrote:
> Am 23.06.2010 um 14:54 schrieb Jan Engelhardt:
>> Do not start grepping in iptables -L.
>
> There is also building iptables rules with a script and re-run
> that as an option.

Scripts are not recommended because of the possibility of race 
conditions. iptables-restore(8) changes rulesets atomically.

>> That is what iptables -S and iptables-save are much better suited 
>> for.
>
> Perhaps the manual pages are out of date then.  There appears to be 
> no mention of the option -S in the manual page for iptables v1.2.10 
> or on this web page:
>
> 	http://linux.die.net/man/8/iptables
>
> % iptables -S
> iptables v1.2.10: Unknown arg `-S'
> Try `iptables -h' or 'iptables --help' for more information.

http://www.netfilter.org/news.html :

"2004-Jun-15
	New iptables 1.2.10 release ..."

That was SIX YEARS ago.

> Where are you finding -S ?

What is out of date is your version of iptables and that Web page. 
Manuals for recent releases of iptables are up-to-date.
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