Firewalls

NextDNS
免费
NextDNS：云托管的DNS服务
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eScan Internet Security Suite
试用版
eScan Internet Security Suite 的评论
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Outpost Firewall Free
试用版
Outpost防火墙使几乎所有Internet危险都让您高枕无忧。与其他个人防火墙不同，Outpost在安装后即开始防御各种内部和外部攻击。这是第一款具有开放式体系结构并支持插件的防火墙，因此全球数千名开发人员都可以轻松扩展其功能。主要优点：基本防火墙保护 -标准数据包和应用程序筛选可保护计算机免受不必要的通信。连接监视 -允许您实时查看网络活动，以帮助定义不适当的连接并立即将其关闭。冲浪保护 -维护Internet上的隐私，保护浏览器免受Internet威胁。
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WindowsSpyBlocker
免费
使用WindowsSpyBlocker保护您的个人电脑
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VPN Proxy Master Windows
试用版
免费试用虚拟专用网络
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Anti DDoS Guardian
试用版
Anti DDoS Guardian: 防止 DDoS 和其他攻击
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Tiny Firewall
免费
小防火墙：全方位保护的安全套件
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Sunbelt Personal Firewall
免费
保护自己免受黑客攻击。通过100％免费下载防火墙来保护您的PC。 Sunbelt个人防火墙（SPF），以前称为Kerio防火墙，被PC Magazine称为“我们的最爱”。 Windows防火墙（XP和Vista）都比没有用的要糟，它给您一种错误的安全感。为什么？它仅过滤传入流量。这意味着，如果恶意软件破坏了您的PC，它就可以发送您的所有个人信息。那就对了; Windows的“防火墙”并不能阻止您！但是SPF ... 支持Windows XP和Vista 过滤传入和传出流量！阻止黑客进入，并保留您的私人信息。与VIPRE Antivirus + Antispyware完美搭配易于使用，不会降低您的PC速度！
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Comodo Free Firewall
免费
Comodo Free Firewall is a superb replacement for Windows’ default utility. The interface is modern, sleek and intuitive and easy to navigate. Not only is it pleasing on the eyes, it also provides enhanced protection via a constantly updated cloud database to always keep your system as safe as possible. Key Features include: Fast and hassle-free online experience. Manages traffic on your PC. Blocks all Internet attacks. Secures all connections when you are online. Monitors in/out connections. This free firewall protects your computer from all manner of external threats in an efficient and effective way. It uses something called default deny protection (DDP) to prevent any threats from entering, and affecting your system. It works by using a cross reference system to ensure that whenever unknown software has been introduced to your system, Comodo Free Firewall will cross-reference it with a white-list of over 15 million files and apps to see if it is legitimate. If it isn’t then Comodo Free Firewall will alert you that a possibly malicious file is attempting to access your PC. Overall, Comodo Free Firewall is able to block online threats, providing a solid, strong defence for your system against attacks. It includes a robust browser, virtual desktop and sandboxing system. The only downside is the it flags both good and bad files, which can obviously become quite annoying.
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Windows Firewall Control
免费
Windows防火墙控制：一款适用于Windows的免费安全程序
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Sygate Personal Firewall
免费
Free for personal use, Sygate Personal Firewall provides best of breed security in a user friendly interface, protecting your PC from hackers, trojans and DoS attacks. Features include full-ICS support, protocol driver level protection, enhanced logging, and more. Sygate Personal Firewall delivers unobtrusive, highly configurable, enforceable rule-based security policy by constantly operating in the background of your PC. Policies regarding applications, trusted IP addresses, ports, protocols and scheduling can be customized to support and secure any network configurations or requirements. Designed with high performance in mind, it delivers top-notch security without sacrificing your computing power. Note that from November 30th, 2005 all Sygate consumer firewall products have been discontinued but this versions is available here for free use.
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Kerio Control VPN Client(64 bit)
试用版
使用 Kerio Control VPN 客户端（64 位）进行安全的 VPN 连接
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ZoneAlarm Free Firewall
免费
ZoneAlarm Free Firewall通过将计算机隐藏在未经请求的网络流量中，从而阻止黑客渗透您的家用PC。通过检测和防止入侵，ZoneAlarm Free Firewall使您的PC免受病毒，降低性能的间谍软件和窃取您的个人信息，密码和财务数据的间谍软件的侵害。基本防火墙保护在线上对其他人不可见新的界面使操作更加轻松-较小的尺寸使它轻巧系统地识别黑客并阻止访问尝试
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GlassWire Free Firewall
免费
GlassWire通过向您提供有关网络活动的可视化数据来保护计算机免受威胁。 GlassWire会通知您有关可疑主机，ARP欺骗攻击，计算机的奇异更改，来自未知应用程序的新网络连接以及许多其他与安全性有关的警报。该应用程序的防火墙将在您的计算机和Internet之间提供一个安全的边界。您可以从“防火墙”选项卡中查看数据；它提供有关哪些应用程序访问了Internet的信息，并且可以阻止任何可疑的，侵犯您的隐私或浪费带宽的应用程序。主要功能包括：通过显示所有Internet连接来保护您的计算机和隐私。清晰的网络可视化工具。易于使用的界面。免费的防火墙保护。 GlassWire使用有限的系统资源。简化且不言自明的用户界面。总体而言，GlassWire是一个简单的网络监视工具，带有内置防火墙，旨在允许/拒绝对您的应用程序的Internet访问。由于界面简洁明了，信息显示方式清晰，高级用户和新手都将能够毫无问题地操作GlassWire。
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Comodo Internet Security
免费
Comodo Internet Security is a free, security app that provides complete protection from virus attacks, Trojans, worms, buffer overflows, zero-day attacks, spyware and hackers. The app is multi faceted and combines powerful Antivirus protection, an enterprise class packet filtering firewall, advanced host intrusion prevention tools, configurable application control and anti-spyware. All in one powerful app. Key Features include: Antivirus: Tracks down and destroy any existing malware hiding in a PC. Anti-Spyware: Detects spyware threats and destroys each infection. Anti-Root-kit: Scans, detects & removes root-kits on your computer. Bot Protection: Prevents malicious software turning your PC into a zombie. Defense+: Protects critical system files and blocks malware before it can install. Auto Sandbox Technology: Runs unknown files in an isolated environment. Memory Firewall: Cutting-edge protection against sophisticated buffer overflow attacks. Anti-Malware: Kills malicious processes before they can infect your system. Overall, Comodo Internet Security features a friendly graphical user interface that can be navigated by users of all levels of expertise. It has a strong, robust firewall, a high quality Antivirus and stacks of other security tools that are all easy to configure; just 'set and forget'.
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