更新一下下

fix_network_sleep.sh

@@ -0,0 +1,136 @@
+#!/bin/bash
+# 功能：修复Ubuntu Server长时间无网络活动导致网络关闭的问题
+# 使用方法：sudo bash fix_network_sleep.sh
+
+# 检查是否以root权限运行
+if [ "$(id -u)" -ne 0 ]; then
+    echo "错误：请使用root权限运行此脚本（sudo bash $0）" >&2
+    exit 1
+fi
+
+# 检测网卡名称（获取第一个活动的以太网接口）
+get_active_nic() {
+    # 排除lo和docker等虚拟接口，获取第一个物理以太网接口
+    nic=$(ip -br link show | grep -v 'LOOPBACK' | grep -v 'DOCKER' | grep 'UP' | awk '{print $1}' | head -n 1)
+    if [ -z "$nic" ]; then
+        # 如果没有找到活动接口，获取第一个以太网接口
+        nic=$(ip -br link show | grep -v 'LOOPBACK' | grep -v 'DOCKER' | awk '{print $1}' | head -n 1)
+    fi
+    echo "$nic"
+}
+
+NIC=$(get_active_nic)
+
+if [ -z "$NIC" ]; then
+    echo "错误：未检测到网络接口，请检查网络配置"
+    exit 1
+fi
+
+echo "检测到活动网络接口：$NIC"
+
+# 备份相关配置文件
+backup_configs() {
+    echo "正在备份配置文件..."
+    [ -d /etc/systemd/system/ ] && cp -n /etc/systemd/system/disable-nic-powersave.service /etc/systemd/system/disable-nic-powersave.service.bak 2>/dev/null
+}
+
+# 临时禁用网卡节能模式（立即生效）
+disable_nic_powersave_temp() {
+    echo "正在临时禁用网卡节能模式..."
+    if command -v ethtool &> /dev/null; then
+        # 禁用EEE节能
+        sudo ethtool --change "$NIC" eee off 2>/dev/null
+        # 禁用电源管理
+        sudo ethtool -s "$NIC" power management off 2>/dev/null
+        # 启用WOL功能
+        sudo ethtool -s "$NIC" wol g 2>/dev/null
+    else
+        echo "警告：未安装ethtool，正在安装..."
+        sudo apt update >/dev/null
+        sudo apt install -y ethtool >/dev/null
+        disable_nic_powersave_temp
+    fi
+}
+
+# 永久禁用网卡节能模式（系统启动时生效）
+disable_nic_powersave_permanent() {
+    echo "正在配置永久禁用网卡节能模式..."
+    
+    # 创建systemd服务
+    cat << EOF | sudo tee /etc/systemd/system/disable-nic-powersave.service > /dev/null
+[Unit]
+Description=Disable NIC Power Saving Mode for $NIC
+After=network.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/ethtool -s $NIC wol g
+ExecStart=/usr/sbin/ethtool --change $NIC eee off
+ExecStart=/usr/sbin/ethtool --change $NIC power management off
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+    # 启用并启动服务
+    sudo systemctl daemon-reload
+    sudo systemctl enable disable-nic-powersave.service
+    sudo systemctl start disable-nic-powersave.service
+}
+
+# 优化SSH保持连接设置
+optimize_ssh_settings() {
+    echo "正在优化SSH连接设置..."
+    SSH_CONFIG="/etc/ssh/sshd_config"
+    
+    # 备份SSH配置
+    [ -f "$SSH_CONFIG" ] && cp -n "$SSH_CONFIG" "$SSH_CONFIG.bak"
+    
+    # 设置SSH心跳检测
+    if ! grep -q "^ClientAliveInterval" "$SSH_CONFIG"; then
+        echo "ClientAliveInterval 60" >> "$SSH_CONFIG"
+    else
+        sed -i 's/^ClientAliveInterval.*/ClientAliveInterval 60/' "$SSH_CONFIG"
+    fi
+    
+    if ! grep -q "^ClientAliveCountMax" "$SSH_CONFIG"; then
+        echo "ClientAliveCountMax 3" >> "$SSH_CONFIG"
+    else
+        sed -i 's/^ClientAliveCountMax.*/ClientAliveCountMax 3/' "$SSH_CONFIG"
+    fi
+    
+    # 重启SSH服务
+    sudo systemctl restart sshd
+}
+
+# 检查并修复DNS服务问题
+fix_dns_service() {
+    echo "正在检查DNS服务..."
+    if ! systemctl is-active --quiet systemd-resolved; then
+        echo "修复DNS服务问题..."
+        sudo apt update >/dev/null
+        sudo apt install --reinstall -y systemd-resolved >/dev/null
+        sudo systemctl enable --now systemd-resolved
+    fi
+}
+
+# 显示当前网卡电源管理状态
+show_status() {
+    echo -e "\n当前网络接口状态："
+    echo "-------------------------"
+    ip link show "$NIC" | grep -A 1 "$NIC"
+    echo -e "\n电源管理状态："
+    ethtool "$NIC" | grep -iE "power management|energy"
+    echo "-------------------------"
+    echo "配置已完成，建议重启系统使所有设置生效"
+    echo "重启命令：sudo reboot"
+}
+
+# 主流程执行
+backup_configs
+disable_nic_powersave_temp
+disable_nic_powersave_permanent
+optimize_ssh_settings
+fix_dns_service
+show_status
+