交换机安全设置：保护网络免受攻击 一、引言 在当今数字化的世界中，网络安全已成为一个至关重要的议题。交换机作为网络的核心组成部分，负责连接各种设备和子网，其安全性尤为重要。本文将探讨如何通过安全设置来保护网络免受攻击。 二、交换机安全设置 1. 密码保护 密码是保护交换机安全的第一道防线。为防止未经授权的访问，必须为交换机设置一个复杂的密码，并定期更换密码。密码的复杂度应足够高，包含大小写字母、数字和特殊符号的混合。 2. 访问控制列表（ACL） 通过配置访问控制列表（ACL），可以限制对交换机的访问。只有被授权的用户才能通过ACL进行访问。此外，还可以根据IP地址、MAC地址或端口号等条件对访问进行限制。 3. 端口安全 配置端口安全可以防止未经授权的设备连接到交换机。通过设置端口安全策略，可以限制连接到该端口的设备数量，或者指定允许连接的设备的MAC地址。 4. VLAN隔离 将网络划分为不同的虚拟局域网（VLAN）可以增加网络的安全性。通过配置VLAN，可以将不同用户组或设备组隔离开来，从而减少潜在的安全风险。 5. 开启防火墙功能 交换机的防火墙功能可以阻止不安全的网络流量。应开启交换机的防火墙功能，并根据实际需求配置规则，以防止未经授权的访问和恶意攻击。 6. 定期更新固件和软件

随着网络技术的不断发展，新的安全漏洞和威胁也不断出现。为了防范这些威胁，应定期更新交换机的固件和软件。此外，还应及时修复已发现的漏洞和安全问题。

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三、翻译（英文版） Protecting Network from Attacks with Switch Security Settings I. Introduction In today's digital world, network security has become a crucial topic. As a core component of the network, switches are responsible for connecting various devices and subnets, making their security particularly important. This article will explore how to protect networks from attacks through secure switch settings. II. Switch Security Settings 1. Password Protection Password is the first line of defense for protecting switch security. To prevent unauthorized access, it is necessary to set a complex password for the switch and regularly change it. The complexity of the password should be high enough to include a mix of uppercase and lowercase letters, numbers, and special characters. 2. Access Control Lists (ACL)

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By configuring Access Control Lists (ACL), access to the switch can be restricted. Only authorized users can access the switch through the ACL. Additionally, access can be limited based on conditions such as IP address, MAC address, or port number. 3. Port Security Configuring port security can prevent unauthorized devices from connecting to the switch. By setting port security policies, the number of devices connected to the port can be limited, or the MAC addresses of the devices allowed to connect can be specified. 4. VLAN Isolation Dividing the network into different Virtual Local Area Networks (VLANs) can increase network security. By configuring VLANs, different user groups or device groups can be isolated, thereby reducing potential security risks. 5. Enabling Firewall Functionality The firewall functionality of switches can block unsecure network traffic. It is necessary to enable the firewall functionality of the switch and configure rules according to actual needs to prevent unauthorized access and malicious attacks. 6. Regularly Updating Firmware and Software With the continuous development of network technology, new security vulnerabilities and threats continue to emerge. To defend against these threats, it is necessary to regularly update the firmware and software of switches. Additionally, it is important to promptly fix identified vulnerabilities and security issues.