[SOVLED by '!' ]how to specify IP not equal to in iptables rules ????

[Jatin K]

On Saturday 16 July 2011 10:18 AM, g wrote:
> On 07/16/2011 04:25 AM, Jatin K wrote:
> <>
>
>> Sorry, that was my mistake  :-(
> that happens. but does make things difficult to help.
>
>> actually I got the solution what was needed, from this list.
> and was so noted. wherein, a little more info would be nice.
>
> did blocking work with;
>
>    [1] iptables -A INPUT ! -s 172.16.158.111 -p tcp --dport 21 -j DROP
> or
>    [2] iptables -A INPUT -s ! 172.16.158.111 -p tcp --dport 21 -j DROP
>
> syntax tends to indicate that [2] is correct, as [1] would tend to
> indicate "NOT source".
>


[2] worked for me   ...by the way we need to indicate !  like '!' ( in 
single quote)

iptables -A INPUT -s '!' 172.16.158.111 -p tcp --dport 21 -j DROP




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