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Wednesday 22 October 2014

INCREASE YOUR LINUX WEB SPEED !

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

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