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Update network.sh
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network.sh
114
network.sh
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@ -3,57 +3,89 @@
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#from https://github.com/spiritLHLS/one-click-installation-script
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#version: 2022.12.17
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# Check if ping to google.com is successful
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if ping -c 1 google.com; then
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echo "Ping successful"
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else
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echo "Ping failed. Checking nameserver."
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# Check current nameserver
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nameserver=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2}')
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echo "Current nameserver: $nameserver"
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head() {
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# 支持系统：Ubuntu 12+，Debian 6+
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ver="2022.12.17"
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changeLog="一键修复linux网络脚本"
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clear
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echo "#######################################################################"
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echo "# ${YELLOW}一键修复linux网络脚本${PLAIN} #"
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echo "# 版本：$ver #"
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echo "# 更新日志：$changeLog #"
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echo "# ${GREEN}作者${PLAIN}: spiritlhl #"
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echo "# ${GREEN}作仓库${PLAIN}: https://github.com/spiritLHLS/one-click-installation-script #"
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echo "#######################################################################"
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echo "支持系统：Ubuntu 18+，Debian 8+，centos 7+，Fedora，Almalinux 8.5+"
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echo "1.修复nameserver为google源或cloudflare源"
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echo "2.尝试修复为IP类型对应的网络优先级(默认IPV4类型，纯V6类型再替换为IPV6类型)"
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# Display prompt asking whether to proceed with checking and changing
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read -p "Do you want to proceed with checking and changing? [y/n] " -n 1 confirm
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echo ""
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# Try using Google's nameserver
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echo "Trying Google's nameserver: 8.8.8.8"
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sudo sed -i "s/$nameserver/8.8.8.8/g" /etc/resolv.conf
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# Check user's input and exit if they do not want to proceed
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if [ "$confirm" != "y" ]; then
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exit 0
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fi
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}
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main() {
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# Check if ping to google.com is successful
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if ping -c 1 google.com; then
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echo "Ping successful with Google's nameserver"
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echo "Ping successful"
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else
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echo "Ping failed with Google's nameserver. Trying Cloudflare's nameserver."
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echo "Ping failed. Checking nameserver."
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# Try using Cloudflare's nameserver
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echo "Trying Cloudflare's nameserver: 1.1.1.1"
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sudo sed -i "s/8.8.8.8/1.1.1.1/g" /etc/resolv.conf
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# Check current nameserver
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nameserver=$(cat /etc/resolv.conf | grep nameserver | awk '{print $2}')
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echo "Current nameserver: $nameserver"
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# Try using Google's nameserver
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echo "Trying Google's nameserver: 8.8.8.8"
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sudo sed -i "s/$nameserver/8.8.8.8/g" /etc/resolv.conf
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if ping -c 1 google.com; then
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echo "Ping successful with Cloudflare's nameserver"
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echo "Ping successful with Google's nameserver"
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else
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echo "Ping failed with Cloudflare's nameserver. Checking network configuration."
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echo "Ping failed with Google's nameserver. Trying Cloudflare's nameserver."
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# Check IP type and network priority
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ip_type=$(curl -s ip.sb | grep -oP '(?<=is )(.+)(?=\.)')
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echo "IP type: $ip_type"
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if [ "$ip_type" = "IPv4" ]; then
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priority=$(cat /etc/gai.conf | grep -oP '(?<=precedence ::ffff:0:0\/96 )\d+')
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else
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priority=$(cat /etc/gai.conf | grep -oP '(?<=precedence ::/0 )\d+')
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fi
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echo "Network priority: $priority"
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# Modify network priority if necessary
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if [ "$ip_type" = "IPv4" ] && [ "$priority" -gt "100" ]; then
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sudo sed -i 's/precedence ::ffff:0:0\/96 100/precedence ::ffff:0:0\/96 50/' /etc/gai.conf
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elif [ "$ip_type" = "IPv6" ] && [ "$priority" -lt "100" ]; then
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sudo sed -i 's/precedence ::\/0 50/precedence ::\/0 100/' /etc/gai.conf
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else
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echo "Network configuration is correct."
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fi
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# Try to ping again after modifying network priority
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# Try using Cloudflare's nameserver
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echo "Trying Cloudflare's nameserver: 1.1.1.1"
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sudo sed -i "s/8.8.8.8/1.1.1.1/g" /etc/resolv.conf
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if ping -c 1 google.com; then
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echo "Ping successful after modifying network priority"
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echo "Ping successful with Cloudflare's nameserver"
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else
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echo "Network problem is not related to nameserver or network priority."
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echo "Ping failed with Cloudflare's nameserver. Checking network configuration."
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# Check IP type and network priority
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ip_type=$(curl -s ip.sb | grep -oP '(?<=is )(.+)(?=\.)')
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echo "IP type: $ip_type"
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if [ "$ip_type" = "IPv4" ]; then
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priority=$(cat /etc/gai.conf | grep -oP '(?<=precedence ::ffff:0:0\/96 )\d+')
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else
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priority=$(cat /etc/gai.conf | grep -oP '(?<=precedence ::/0 )\d+')
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fi
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echo "Network priority: $priority"
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# Modify network priority if necessary
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if [ "$ip_type" = "IPv4" ] && [ "$priority" -gt "100" ]; then
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sudo sed -i 's/precedence ::ffff:0:0\/96 100/precedence ::ffff:0:0\/96 50/' /etc/gai.conf
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elif [ "$ip_type" = "IPv6" ] && [ "$priority" -lt "100" ]; then
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sudo sed -i 's/precedence ::\/0 50/precedence ::\/0 100/' /etc/gai.conf
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else
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echo "Network configuration is correct."
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fi
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# Try to ping again after modifying network priority
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if ping -c 1 google.com; then
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echo "Ping successful after modifying network priority"
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else
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echo "Network problem is not related to nameserver or network priority."
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fi
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fi
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fi
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fi
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fi
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}
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head
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main
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