Fixing BSNL DNS Redirection to domain-error.com
BSNL’s default DNS servers hijack unresolved domain queries and redirect users to ad-laden spam pages like http://domain-error.com. To prevent this ISP hijacking, configure NetworkManager to ignore ISP-assigned DNS servers and use Google Public DNS instead. Edit your NetworkManager connection profile in /etc/NetworkManager/system-connections/: [ipv4] dns=8.8.8.8;8.8.4.4; dns-search= method=auto ignore-auto-dns=true Alternatively, you can configure this graphically or via the terminal interface with nmtui: sudo nmtui References Google Public DNS Guide Ask Ubuntu: Redirecting to http://domain-error.com