[Kitty]

some arcane incantation

That would be 'tc' - That will allow you to limit any network interface using a variety of methods - Couple it with iptables and you can do some very detailed QOS control as well

But you'll probably need to rebuild your kernel to get it to work - I did

http://lartc.org/howto/

Good luck!

[Neil]

There is an application called Wondershaper for Linux which can be used to limit applications.

[fozl]

Actually we preffer you to throttle at the application level.

[gregoryfenton]

We would need the server's Operating System version.

It is highly likely that there would be some arcane incantation you could type to limit the network card to 100Mb/s but without more information we can't really help quite yet.

[kohkindachi]

I've got 1gbps server and it'll be 10mbps when 10TB BW is used. Can anyone suggest away for me to cap the connectivity to like 100mbps etc? Thanks