How to limit maximum number of TCP connections

Jatin K ssh.fedora at gmail.com
Thu Jun 28 08:24:00 UTC 2012


On 06/28/2012 01:33 PM, jdow wrote:
> On 2012/06/27 23:27, Jatin K wrote:
>> On 06/28/2012 11:32 AM, Ed Greshko wrote:
>>> On 06/28/2012 01:27 PM, Jatin K wrote:
>>>> well..... suppose I've 5 clients in my office ( say A,B, C, D, E ) 
>>>> and a
>>>> linux box
>>>> which is working as a router ( gateway ), I want  to allow only 4 
>>>> concurrent
>>>> pcs to
>>>> access the Internet, say if A,B,C,D is using internet then fifth 
>>>> client E can
>>>> not
>>>> access the internet until any of previous connected clients ( 
>>>> A,B,C, or D) gets
>>>> disconnected/session ended
>>> Define "access internet".....
>>>
>>> Do you mean *all* protocols?  So, you want to stop a 5th system from 
>>> browsing,
>>> ftp,
>>> ssh, ntp, pop, imap, etc?  So, if A, B, C, and D are using these
>>> protocols...which
>>> can happen without direct user input (pop/imap polls, facebook and 
>>> rss feed
>>> updates,
>>> etc.)  you want to block E for an indeterminate amount of time?
>> exactly
>>
>>>
>>> Seriously?
>> yes, its my client's requirement ......  I can understand its not the 
>> way to go
>> .... but he pays me for this ... I'm a service provider .. I have to 
>> do what
>> they said and want to do
>>
>>> I think you need to state the problem you are trying to solve....not 
>>> ask for a
>>> solution which really sounds wrong headed.
> If A, B, C, and D are browsing CNN, MSNBC, ABC, and FoxNews is the 
> limit on
> E that he cannot browse CBS or that he cannot make an ftp file 
> transfer or
> his machine cannot attempt an NTP clock synchronization until one of the
> others quits using the network?
>
if A,B,C and D are using Internet then E must not have Internet access , 
like web-browsing, send/receive email, ftp Etc....

if it can be achieved by proxy (squid like)  .. I can suggest them





-- 
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   ^ ^  Jatin Khatri
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