What if you want to do the settings on your ubuntu so the internet you will feel more fast, then here I have to say How to Speed Up Internet Connection in Ubuntu, but it must be remembered sysctl.conf should be backed up in advance to guard against things that are not desirable
1. Open a terminal (CTRL + F2 way the contents of gnome-terminal)
2. Target sysctl.conf file and we are located at / etc / sysctl.conf
3. Backup sysctl.conf file type in the following manner:
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$ sudo cp /etc/sysctl.conf /etc/sysctl.conf.backup |
4. Edit the sysctl.conf file type in the following manner:
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$ sudo gedit /etc/sysctl.conf |
5. Sysctl.conf file contents:
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# 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 connectionnet.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 |
6. Save the file and then run
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$ sudo sysctl -p |
7. To eliminate the effect you just replace the file sysctl.conf with which we had backups.
sam centos