Ran into an issue on Ubuntu the other day in which network functions were having issues. Through a little PD found that IPV6 was the culprit. Here is a tip on how to disable IPV6 on Ubuntu 10.04.
To check if IPv6 is disabled, run the following command:
0 means it’s enabled and 1 – disabled.
To disable IPv6, you have to add the following lines to /etc/sysctl.conf:
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
To do it from the command line, paste this in a terminal:
echo "#disable ipv6" | sudo tee -a /etc/sysctl.conf
echo "net.ipv6.conf.all.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf
echo "net.ipv6.conf.default.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf
echo "net.ipv6.conf.lo.disable_ipv6 = 1" | sudo tee -a /etc/sysctl.conf
Then reboot and check if IPv6 has been disabled with the command in the beginning of this post.