How to increase internet speed in ubuntu

Internet speeds in Ubuntu can be increased. Simply follow the steps.

Open a Terminal via Applications->Accessories->Terminal and type the following

sudo vim /etc/sysctl.conf (press i for edit mode)

Then Paste the Following at the end of the file:

## increase TCP max buffer size setable using setsockopt()
net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
## increase Linux autotuning TCP buffer limits
## min, default, and max number of bytes to use
## set max to at least 4MB, or higher if you use very high BDP paths
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
## don't cache ssthresh from previous connection
net.ipv4.tcp_no_metrics_save = 1
net.ipv4.tcp_moderate_rcvbuf = 1
## recommended to increase this for 1000 BT or higher
net.core.netdev_max_backlog = 2500
## for 10 GigE, use this, uncomment below
## net.core.netdev_max_backlog = 30000
## Turn off timestamps if you're on a gigabit or very busy network
## Having it off is one less thing the IP stack needs to work on
## net.ipv4.tcp_timestamps = 0
## disable tcp selective acknowledgements.
net.ipv4.tcp_sack = 0
##enable window scaling
net.ipv4.tcp_window_scaling = 1



Then type the follwing to exit and save what you have just done. Press ESC to quit the edit mode and type the following.

:wq

Then type the following to to apply the settings.

sudo sysctl -p

You can disable all these settings by removing these lines you added via:

sudo gedit /etc/sysctl.conf