Disabling IPv6 on -Ubuntu
Check IPv6(disabled or enabled), with rajeshp@ubuntu:~$ cat /proc/sys/net/ipv6/conf/all/disable_ipv6 0 //Enabled Disabled IPv6 with the following lines in /etc/sysctl.conf : - net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 Above, using command line(CLI):- rajeshp@ubuntu:~$ echo "#Disable ipv6" | sudo tee -a /etc/sysctl.conf rajeshp@ubuntu:~$ echo "net.ipv6.conf.all.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf rajeshp@ubuntu:~$ echo "net.ipv6.conf.default.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf rajeshp@ubuntu:~$ echo "net.ipv6.conf.lo.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf Reactivate the above configuration by, executing :- rajeshp@ubuntu:~$ sysctl -p rajeshp@ubuntu:~$ cat /proc/sys/net/ipv6/conf/all/disable_ipv6 1 ...