Message processing method, electronic device, and readable storage medium

A packet processing method, applicable to an electronic device installed with a Virtual Private Network (VPN) application and comprising:

• a non-VPN application in the electronic device sending a packet that is to be sent by the non-VPN application to the VPN application through a hardware network module and a virtual network module in the electronic device;
• the VPN application receiving and analyzing the packet;
• and
• if the analysis indicates that the packet contains a Domain Name System (DNS) resolution request, the VPN application redirecting the DNS resolution request packet to a preset secure DNS server through the virtual network module and the hardware network module;
• wherein, the non-VPN application in the electronic device sending a packet that is to be sent by the non-VPN application to the VPN application through a hardware network module and a virtual network module in the electronic device comprises:
• the non-VPN application in the electronic device sending the to-be-sent packet to the hardware network module in the electronic device;
• the hardware network module sending the packet to the virtual network module in the electronic device based on a packet sending policy corresponding to a mangle input chain in a preset iptables;
• and
• the virtual network module sending the packet to the VPN application.