linux 网页打不开网页版

ping www.google.com

sudo systemctl restart networking

nameserver 8.8.8.8
nameserver 8.8.4.4

sudo ufw status

sudo ufw allow http
sudo ufw allow https

export http_proxy=http://your.proxy.server:port
export https_proxy=https://your.proxy.server:port

#!/bin/bash

# Check network connection
ping -c 3 www.google.com > /dev/null 2>&1
if [ $? -ne 0 ]; then
    echo "Network connection issue detected. Restarting networking service..."
    sudo systemctl restart networking
fi

# Check DNS settings
echo "nameserver 8.8.8.8" | sudo tee -a /etc/resolv.conf
echo "nameserver 8.8.4.4" | sudo tee -a /etc/resolv.conf

# Check firewall status
sudo ufw status | grep -i active
if [ $? -eq 0 ]; then
    echo "Firewall is active. Allowing HTTP and HTTPS traffic..."
    sudo ufw allow http
    sudo ufw allow https
fi

echo "Network troubleshooting completed."