Solution to the problem of wired connection but no Internet access in ubuntu (ubuntu does not connect to the Internet)

This article mainly introduces how to solve the problem of wired connection but no Internet access in ubuntu (ubuntu does not connect to the Internet). If you need it, refer to the following tag: Ubuntu

Ubuntu has a wired connection but cannot access the internet. execute the following command to solve the problem:

Copy codeThe code is as follows:
Sudo sysctl net. ipv4.conf. default. rp_filter = 0
Sudo sysctl net. ipv4.conf. all. rp_filter = 0
Sudo sysctl net. ipv4.ip _ forward = 1
Sudo sysctl net. ipv6.conf. all. forwarding = 1

Or directly append it to/etc/sysctl. conf.

If a device is not hosted, the network is usually disabled after the desktop's default mobile IP address.

Modify/etc/NetworkManager. conf and set managed to true and reboot.

Sometimes, even if the above four items cannot connect to the network, it is caused by managed = true and then changed to false to connect to the webpage.