Increase Internet connection on Linux

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# Angel DeChaos mail:dark.angel24.daa@gmail.com #
# My Set up #
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First -> sudo cp /etc/sysctl.conf /etc/sysctl.conf.angeldechaos
second -> gksudo gedit /etc/sysctl.conf ( laways use gksudo for graphical using)
Insert this command in the end of ur paragraph :
# 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

aftyer finish all stuff then run command to refresh :
sudo sysctl -p (it"ll refresh ur system internet connection)


after that disable ur ipv6 :

Disable ipv6 :
gksudo gedit /etc/modprobe.d/aliases

# These are the standard aliases for devices and kernel drivers.
# This file does not need to be modified.
#
# Please file a bug against module-init-tools if a package needs a entry
# in this file.

# network protocols
########################################################################
alias net-pf-1 unix
alias net-pf-2 ipv4
alias net-pf-3 ax25
alias net-pf-4 ipx
alias net-pf-5 appletalk
alias net-pf-6 netrom
alias net-pf-7 bridge
alias net-pf-8 atm
alias net-pf-9 x25
# 1, 2, 3 new lines
alias net-pf-10 ipv6 off
alias net-pf-10 off
alias ipv6 off
# alias net-pf-10 ipv6
alias net-pf-11 rose
alias net-pf-12 decnet
# 13 NETBEUI
alias net-pf-15 af_key
alias net-pf-16 af_netlink
alias net-pf-17 af_packet

There's another way too: instead of changing aliases file, create fie named bad_list in /etc/modprobe.d containing this line:
alias net-pf-10 off