Re: traffic shaping with tc on Linux 5.4.x

On 2/16/21 9:04 AM, Erik Auerswald wrote:
> Hi,

Hi,

> You could look into the "dscp" module for iptables, and match on both 
> TCP port and DSCP markings.  OpenSSH uses different IPQoS configuration 
> settings for interactive sessions and bulk transfers.

Today I Learned that OpenSSH has IPQoS options to differentiate 
interactive vs non-interactive connections.

> You can check your settings with "ssh -G":
> 
>      $ ssh -G ssh.example.com | grep -i ipqos
>      ipqos lowdelay throughput

Search the ssh man page for IPQoS for more details.

TL;DR:  The first option is interactive and the second option is 
non-interactive.



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Grant. . . .
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