first commit

linux_tool.sh

@@ -0,0 +1,426 @@
+#!/bin/bash
+
+# 版权信息
+# 四喜科技 免费提供
+# 官方网址：https://xi.plus
+
+# 定义颜色变量
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+PURPLE='\033[0;35m'
+CYAN='\033[0;36m'
+NC='\033[0m' # No Color
+
+# 清除屏幕
+clear
+
+# 主菜单函数
+show_menu() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        Ubuntu 命令行工具        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${PURPLE}    四喜科技 免费提供    ${NC}"
+    echo -e "${BLUE}    官方网址：https://xi.plus    ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}1. 查看系统信息${NC}"
+    echo -e "${YELLOW}2. 查看网络信息${NC}"
+    echo -e "${YELLOW}3. 卸载系统防火墙${NC}"
+    echo -e "${YELLOW}4. 修改网络最大连接数到最大${NC}"
+    echo -e "${YELLOW}5. 系统更新${NC}"
+    echo -e "${YELLOW}6. 安装rinetd${NC}"
+    echo -e "${YELLOW}7. 重启rinetd${NC}"
+    echo -e "${YELLOW}8. 停止rinetd${NC}"
+    echo -e "${YELLOW}9. 配置rinetd${NC}"
+    echo -e "${YELLOW}0. 退出${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}请输入您的选择 [0-9]: ${NC}"
+}
+
+# 查看系统信息
+view_system_info() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        系统信息        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}操作系统:${NC} $(lsb_release -d | cut -f2)"
+    echo -e "${YELLOW}内核版本:${NC} $(uname -r)"
+    echo -e "${YELLOW}CPU信息:${NC} $(lscpu | grep 'Model name' | cut -f2 -d:)"
+    echo -e "${YELLOW}内存信息:${NC} $(free -h | grep Mem | awk '{print $2}')"
+    echo -e "${YELLOW}磁盘信息:${NC} $(df -h | grep '/dev/' | grep -v tmpfs)"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 查看网络信息
+view_network_info() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        网络信息        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}IP地址:${NC} $(ip addr show | grep inet | grep -v 127.0.0.1 | cut -d' ' -f6 | cut -d'/' -f1)"
+    echo -e "${YELLOW}网关:${NC} $(ip route | grep default | cut -d' ' -f3)"
+    echo -e "${YELLOW}DNS服务器:${NC} $(cat /etc/resolv.conf | grep nameserver | cut -d' ' -f2)"
+    echo -e "${YELLOW}网络接口:${NC} $(ip link show | grep UP | grep -v lo | cut -d':' -f2)"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 卸载系统防火墙
+uninstall_firewall() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        卸载系统防火墙        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}正在卸载ufw...${NC}"
+    sudo apt-get remove -y ufw
+    sudo apt-get purge -y ufw
+    echo -e "${GREEN}防火墙卸载完成！${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 修改网络最大连接数到最大
+modify_max_connections() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        修改网络最大连接数        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}正在修改网络最大连接数...${NC}"
+    
+    # 修改系统限制
+    echo "* soft nofile 65535" | sudo tee -a /etc/security/limits.conf
+    echo "* hard nofile 65535" | sudo tee -a /etc/security/limits.conf
+    
+    # 修改sysctl配置
+    echo "net.core.somaxconn = 65535" | sudo tee -a /etc/sysctl.conf
+    echo "net.ipv4.tcp_max_syn_backlog = 65535" | sudo tee -a /etc/sysctl.conf
+    echo "net.ipv4.tcp_max_tw_buckets = 65535" | sudo tee -a /etc/sysctl.conf
+    
+    # 应用sysctl配置
+    sudo sysctl -p
+    
+    echo -e "${GREEN}网络最大连接数修改完成！${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 系统更新功能
+system_update() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        系统更新        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    
+    # 获取当前系统版本
+    CURRENT_VERSION=$(lsb_release -c | cut -f2)
+    echo -e "${YELLOW}当前系统版本: ${CURRENT_VERSION}${NC}"
+    
+    echo -e "${YELLOW}1. 自动选择系统版本更新${NC}"
+    echo -e "${YELLOW}2. 手动选择系统版本更新${NC}"
+    echo -n -e "${PURPLE}请输入您的选择 [1-2]: ${NC}"
+    read update_choice
+    
+    case $update_choice in
+        1)
+            echo -e "${YELLOW}正在使用当前系统版本 ${CURRENT_VERSION} 进行更新...${NC}"
+            sudo apt-get update
+            sudo apt-get upgrade -y
+            sudo apt-get dist-upgrade -y
+            sudo apt-get autoremove -y
+            echo -e "${GREEN}系统更新完成！${NC}"
+            ;;
+        2)
+            echo -n -e "${PURPLE}请输入要更新的系统版本代号（如：jammy, focal）: ${NC}"
+            read selected_version
+            
+            if [ "$selected_version" == "$CURRENT_VERSION" ]; then
+                echo -e "${YELLOW}正在使用选择的系统版本 ${selected_version} 进行更新...${NC}"
+                sudo apt-get update
+                sudo apt-get upgrade -y
+                sudo apt-get dist-upgrade -y
+                sudo apt-get autoremove -y
+                echo -e "${GREEN}系统更新完成！${NC}"
+            else
+                echo -e "${RED}错误：选择的系统版本 ${selected_version} 与当前系统版本 ${CURRENT_VERSION} 不匹配！${NC}"
+            fi
+            ;;
+        *)
+            echo -e "${RED}无效的选择！${NC}"
+            ;;
+    esac
+    
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 安装rinetd
+install_rinetd() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        安装rinetd        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}正在安装rinetd...${NC}"
+    sudo apt-get update
+    sudo apt-get install -y rinetd
+    echo -e "${GREEN}rinetd安装完成！${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 重启rinetd
+restart_rinetd() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        重启rinetd        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}正在重启rinetd...${NC}"
+    sudo systemctl restart rinetd
+    echo -e "${GREEN}rinetd重启完成！${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 停止rinetd
+stop_rinetd() {
+    clear
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${GREEN}        停止rinetd        ${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -e "${YELLOW}正在停止rinetd...${NC}"
+    sudo systemctl stop rinetd
+    echo -e "${GREEN}rinetd停止完成！${NC}"
+    echo -e "${CYAN}==========================================${NC}"
+    echo -n -e "${PURPLE}按任意键返回菜单...${NC}"
+    read -n 1
+}
+
+# 配置rinetd
+configure_rinetd() {
+    while true; do
+        clear
+        echo -e "${CYAN}==========================================${NC}"
+        echo -e "${GREEN}        配置rinetd        ${NC}"
+        echo -e "${CYAN}==========================================${NC}"
+        echo -e "${YELLOW}1. 查看当前中转配置${NC}"
+        echo -e "${YELLOW}2. 添加中转配置${NC}"
+        echo -e "${YELLOW}3. 修改中转配置${NC}"
+        echo -e "${YELLOW}4. 删除中转配置${NC}"
+        echo -e "${YELLOW}0. 返回主菜单${NC}"
+        echo -e "${CYAN}==========================================${NC}"
+        echo -n -e "${PURPLE}请输入您的选择 [0-4]: ${NC}"
+        read rinetd_choice
+        
+        case $rinetd_choice in
+            1)
+                clear
+                echo -e "${CYAN}==========================================${NC}"
+                echo -e "${GREEN}        当前中转配置        ${NC}"
+                echo -e "${CYAN}==========================================${NC}"
+                if [ -f /etc/rinetd.conf ]; then
+                    echo -e "${YELLOW}配置内容：${NC}"
+                    cat /etc/rinetd.conf
+                else
+                    echo -e "${RED}rinetd配置文件不存在！${NC}"
+                fi
+                echo -e "${CYAN}==========================================${NC}"
+                echo -n -e "${PURPLE}按任意键返回rinetd配置菜单...${NC}"
+                read -n 1
+                ;;
+            2)
+                clear
+                echo -e "${CYAN}==========================================${NC}"
+                echo -e "${GREEN}        添加中转配置        ${NC}"
+                echo -e "${CYAN}==========================================${NC}"
+                
+                echo -n -e "${PURPLE}输入本地IP（默认0.0.0.0）: ${NC}"
+                read local_ip
+                local_ip=${local_ip:-0.0.0.0}
+                
+                echo -n -e "${PURPLE}输入本地端口: ${NC}"
+                read local_port
+                
+                echo -n -e "${PURPLE}输入目标域名: ${NC}"
+                read target_domain
+                
+                echo -n -e "${PURPLE}输入目标端口: ${NC}"
+                read target_port
+                
+                echo -n -e "${PURPLE}是否添加到配置文件？(y/n，默认y): ${NC}"
+                read add_to_file
+                add_to_file=${add_to_file:-y}
+                
+                if [ "$add_to_file" == "y" ] || [ "$add_to_file" == "Y" ]; then
+                    echo "$local_ip $local_port $target_domain $target_port" | sudo tee -a /etc/rinetd.conf
+                    echo -e "${GREEN}中转配置添加完成！${NC}"
+                fi
+                
+                echo -e "${CYAN}==========================================${NC}"
+                echo -n -e "${PURPLE}按任意键返回rinetd配置菜单...${NC}"
+                read -n 1
+                ;;
+            3)
+                clear
+                echo -e "${CYAN}==========================================${NC}"
+                echo -e "${GREEN}        修改中转配置        ${NC}"
+                echo -e "${CYAN}==========================================${NC}"
+                
+                if [ -f /etc/rinetd.conf ]; then
+                    # 显示当前配置并编号
+                    echo -e "${YELLOW}当前配置：${NC}"
+                    sudo awk '{print NR ". " $0}' /etc/rinetd.conf
+                    
+                    echo -n -e "${PURPLE}输入要修改的配置项序号: ${NC}"
+                    read config_num
+                    
+                    # 获取当前配置行
+                    current_config=$(sudo sed -n "${config_num}p" /etc/rinetd.conf)
+                    
+                    if [ -n "$current_config" ]; then
+                        # 解析当前配置
+                        current_local_ip=$(echo $current_config | awk '{print $1}')
+                        current_local_port=$(echo $current_config | awk '{print $2}')
+                        current_target_domain=$(echo $current_config | awk '{print $3}')
+                        current_target_port=$(echo $current_config | awk '{print $4}')
+                        
+                        echo -n -e "${PURPLE}输入新的本地IP（默认$current_local_ip）: ${NC}"
+                        read new_local_ip
+                        new_local_ip=${new_local_ip:-$current_local_ip}
+                        
+                        echo -n -e "${PURPLE}输入新的本地端口（默认$current_local_port）: ${NC}"
+                        read new_local_port
+                        new_local_port=${new_local_port:-$current_local_port}
+                        
+                        echo -n -e "${PURPLE}输入新的目标域名（默认$current_target_domain）: ${NC}"
+                        read new_target_domain
+                        new_target_domain=${new_target_domain:-$current_target_domain}
+                        
+                        echo -n -e "${PURPLE}输入新的目标端口（默认$current_target_port）: ${NC}"
+                        read new_target_port
+                        new_target_port=${new_target_port:-$current_target_port}
+                        
+                        echo -n -e "${PURPLE}是否保存修改？(y/n，默认y): ${NC}"
+                        read save_changes
+                        save_changes=${save_changes:-y}
+                        
+                        if [ "$save_changes" == "y" ] || [ "$save_changes" == "Y" ]; then
+                            # 修改配置文件
+                            sudo sed -i "${config_num}c ${new_local_ip} ${new_local_port} ${new_target_domain} ${new_target_port}" /etc/rinetd.conf
+                            echo -e "${GREEN}中转配置修改完成！${NC}"
+                        fi
+                    else
+                        echo -e "${RED}无效的配置项序号！${NC}"
+                    fi
+                else
+                    echo -e "${RED}rinetd配置文件不存在！${NC}"
+                fi
+                
+                echo -e "${CYAN}==========================================${NC}"
+                echo -n -e "${PURPLE}按任意键返回rinetd配置菜单...${NC}"
+                read -n 1
+                ;;
+            4)
+                clear
+                echo -e "${CYAN}==========================================${NC}"
+                echo -e "${GREEN}        删除中转配置        ${NC}"
+                echo -e "${CYAN}==========================================${NC}"
+                
+                if [ -f /etc/rinetd.conf ]; then
+                    # 显示当前配置并编号
+                    echo -e "${YELLOW}当前配置：${NC}"
+                    sudo awk '{print NR ". " $0}' /etc/rinetd.conf
+                    
+                    echo -n -e "${PURPLE}输入要删除的配置项序号: ${NC}"
+                    read config_num
+                    
+                    # 检查配置项是否存在
+                    current_config=$(sudo sed -n "${config_num}p" /etc/rinetd.conf)
+                    
+                    if [ -n "$current_config" ]; then
+                        echo -n -e "${PURPLE}是否删除该配置项？(y/n，默认y): ${NC}"
+                        read delete_config
+                        delete_config=${delete_config:-y}
+                        
+                        if [ "$delete_config" == "y" ] || [ "$delete_config" == "Y" ]; then
+                            # 删除配置行
+                            sudo sed -i "${config_num}d" /etc/rinetd.conf
+                            echo -e "${GREEN}中转配置删除完成！${NC}"
+                        fi
+                    else
+                        echo -e "${RED}无效的配置项序号！${NC}"
+                    fi
+                else
+                    echo -e "${RED}rinetd配置文件不存在！${NC}"
+                fi
+                
+                echo -e "${CYAN}==========================================${NC}"
+                echo -n -e "${PURPLE}按任意键返回rinetd配置菜单...${NC}"
+                read -n 1
+                ;;
+            0)
+                break
+                ;;
+            *)
+                echo -e "${RED}无效的选择！${NC}"
+                echo -n -e "${PURPLE}按任意键继续...${NC}"
+                read -n 1
+                ;;
+        esac
+    done
+}
+
+# 主循环
+while true; do
+    show_menu
+    read choice
+    
+    case $choice in
+        1)
+            view_system_info
+            ;;
+        2)
+            view_network_info
+            ;;
+        3)
+            uninstall_firewall
+            ;;
+        4)
+            modify_max_connections
+            ;;
+        5)
+            system_update
+            ;;
+        6)
+            install_rinetd
+            ;;
+        7)
+            restart_rinetd
+            ;;
+        8)
+            stop_rinetd
+            ;;
+        9)
+            configure_rinetd
+            ;;
+        0)
+            clear
+            echo -e "${GREEN}感谢使用，再见！${NC}"
+            exit 0
+            ;;
+        *)
+            clear
+            echo -e "${RED}无效的选择，请重新输入！${NC}"
+            echo -n -e "${PURPLE}按任意键继续...${NC}"
+            read -n 1
+            ;;
+    esac
+done