Control the ssh speed

elainelaw · 11-10-2009, 08:09 PM

I want to use ssh to copy some large files to remote server via the leased line , as I don't want to affect the connection between the servers , can I control the transfer speed of ssh eg. lower the speed to half of normal .

Thx

kbp · 11-10-2009, 09:15 PM

You can use scp with the '-l' option, from the man page:

Quote:

Limits the used bandwidth, specified in Kbit/s.

eg.

scp -l 80 my_big_file localhost:/tmp

..will transfer at 10KB/s

cheers

elainelaw · 11-11-2009, 08:19 PM

Quote:

Originally Posted by kbp

You can use scp with the '-l' option, from the man page:

eg.

scp -l 80 my_big_file localhost:/tmp

..will transfer at 10KB/s

cheers

thx ,

it works , but if I want to use with rsync , how to control the speed when I transfer with rsync ?

the command I used is as below

#rsync -P -e ssh remote_file local_local

Thx.

mrclisdue · 11-11-2009, 08:30 PM

I've had varying success with trickle:

http://monkey.org/~marius/pages/?page=trickle

By varying, I mean that it was working well for a few months, then inexplicably (perhaps because I didn't care enough to dig deeper...) quit working.

cheers,

kbp · 11-11-2009, 08:58 PM

There's no bandwidth control in rsync that I'm aware of... there is a rate limiting module for iptables (ipt_limit.o) but I haven't used it so can't give you any useful advice regarding

cheers