Disable ipv6 and tcp_ecn

Disable ipv6 and tcp_ecn -- Linux Enterprise Application-Linux server application information. For more information, see. In fact, the effect is not that obvious for those who want to speed up the Internet.

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

Find the following line:
Alias net-pf-10 ipv6

Add "#" at the beginning to comment out this line. Add a line:

Alias net-pf-10 off

Disable tcp_ecn:
The method to disable TCP direct Congestion Notification (tcp_ecn) is as follows:

Sudo gedit/etc/sysctl. conf

Add
Net. ipv4.tcp _ ecn = 0

Then restart the system.