Wondershaper
If it's not too simple for your use case I suggest you give wondershaper a try.
An easy to use traffic shaping script
that provides these improvements: *
Low latency for interactive traffic
(and pings) at all times * Allow
websurfing at reasonable speeds while
uploading / downloading * Make sure
uploads don't hurt downloads * Make
sure downloads don't hurt uploads .
It does this by: * Limiting upload
speed slightly, to eliminate queues
* Limiting download speed, while allowing bursts, to eliminate queues
* Interactive traffic skips the queue * ACKs and tiny packets skip the queue
It's available as a debian/ubuntu package, just run sudo apt-get install wondershaper to install it. Between wondershaper and using tc directly, trust me, you want wondershaper. At one time I used tc extensively and while quite powerful, it's not a joy to use.
Starting and configuration of Wondershaper
Close all programs and other browser pages. Then check your speed at http://speedtest.net
Syntax: wondershaper [network interface] [down speed kbit/s] [up speed kbit/s]
Example for 8/1M (mbit/s) ADSL connection:
wondershaper eth0 6700 800
If you want to clear wondershaper queues (disabling traffic shaping):
Syntax: wondershaper clear [network interface]
wondershaper clear eth0
Starting wondershaper automatically when OS starts
This can be done by editing the file /etc/network/interfaces
Before:
auto lo
iface lo inet loopback
After:
iface eth0 inet dhcp
up /sbin/wondershaper eth0 6700 800
down /sbin/wondershaper clear eth0
auto eth0
Notice this is just an example. Actual settings might differ a bit in your system. For example, in your system the network interface might be eth0 instead of eth2.
To find your network device execute: ifconfig or see connection information of network manager.
Source: http://www.mdash.net/traffic-shaping-using-wondershaper
If you're using Unity, try to log off and choose Ubuntu Classic.
After that, see if the network manager is on the top bar. If it's not, then you can do this :
- Right click on the top Bar, and choose Add to Panel
- Just double click on Indicator Applet or Indicator Applet Complete
Best Answer
You don't need NetworkManager to connect to a network. Assuming you're using automatic configuration (probably you are) you just need to
sudo dhclient eth0to get an IP address (replace eth0 with your network device if that's the case).