[LARTC] always beeing able to login via ssh

[LARTC] always beeing able to login via ssh

[Peter Holm]

Hi,

how do i have to configure HTB or any other traffic shaping software
if I want to keep enough "headroom" to always beeing able to connect
to a server via ssh, even if there is a lot of traffic?



Have a nice thread,
Peter
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Re: [LARTC] always beeing able to login via ssh

[Stef Coene]

On Monday 25 November 2002 12:34, Peter Holm wrote:
> Hi,
>
> how do i have to configure HTB or any other traffic shaping software
> if I want to keep enough "headroom" to always beeing able to connect
> to a server via ssh, even if there is a lot of traffic?
If you split the traffic and put the ssh and non-ssh traffic in 2 separated 
classes, you will get some improvements.  Give the ssh class a higher 
priority and you will get some more improvements.  If you want very good 
respons, you can limit all the non-ssh traffic so it can never use 100%.  If 
you give it a maximum of 99% of the link, the other 1% is direct available 
for ssh.

Stef

-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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Re: [LARTC] always beeing able to login via ssh

[Peter Holm]

On Mon, 25 Nov 2002 17:23:23 +0100, you wrote:

>If you split the traffic and put the ssh and non-ssh traffic in 2 separated 
>classes, you will get some improvements.  Give the ssh class a higher 
>priority and you will get some more improvements.  If you want very good 
>respons, you can limit all the non-ssh traffic so it can never use 100%.  If 
>you give it a maximum of 99% of the link, the other 1% is direct available 
>for ssh.

How is the syntax for limiting all non-ssh traffic to 99% ?

Thanks for your attention!



Have a nice thread,
Peter
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Re: [LARTC] always beeing able to login via ssh

[Stef Coene]

On Monday 25 November 2002 19:15, Peter Holm wrote:
> On Mon, 25 Nov 2002 17:23:23 +0100, you wrote:
> >If you split the traffic and put the ssh and non-ssh traffic in 2
> > separated classes, you will get some improvements.  Give the ssh class a
> > higher priority and you will get some more improvements.  If you want
> > very good respons, you can limit all the non-ssh traffic so it can never
> > use 100%.  If you give it a maximum of 99% of the link, the other 1% is
> > direct available for ssh.
>
> How is the syntax for limiting all non-ssh traffic to 99% ?
See lartc.org and www.docum.org

Basically, you have to add a cbq or htb root qdisc with 2 classes.  One for 
the ssh traffic, the other for non-ssh traffic.  The ssh class has a rate of 
1% of you link, the other 99%.  And you need 2 filters.  One for the ssh 
traffic (dport = 22) and an other that match all the traffic so you can put 
the traffic in the classes.

Stef


-- 

stef.coene@docum.org
 "Using Linux as bandwidth manager"
     http://www.docum.org/
     #lartc @ irc.oftc.net

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