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	<title>Block UltraSurf &#8211; Thegioifirewall</title>
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	<title>Block UltraSurf &#8211; Thegioifirewall</title>
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	<item>
		<title>Sophos Firewall v19: Hướng dẫn cấu hình Block ứng dụng UltraSurf trên Sophos XGS.</title>
		<link>https://thegioifirewall.com/sophos-firewall-v19-huong-dan-cau-hinh-block-ung-dung-ultrasurf-tren-sophos-xgs/</link>
					<comments>https://thegioifirewall.com/sophos-firewall-v19-huong-dan-cau-hinh-block-ung-dung-ultrasurf-tren-sophos-xgs/#respond</comments>
		
		<dc:creator><![CDATA[John]]></dc:creator>
		<pubDate>Sun, 17 Jul 2022 14:17:38 +0000</pubDate>
				<category><![CDATA[Hướng dẫn cấu hình Firewall Sophos XG]]></category>
		<category><![CDATA[Block UltraSurf]]></category>
		<category><![CDATA[Sophos firewall]]></category>
		<category><![CDATA[UltraSurf]]></category>
		<guid isPermaLink="false">https://www.thegioifirewall.com/?p=16734</guid>

					<description><![CDATA[1.Overview Ultrasurf là ​​một ứng dụng proxy, nó là một chương trình được thiết kế để cho phép người dùng vượt qua các thiết bị bảo mật như firewall với web filters và application filters để lướt Internet mà không bị hạn chế với các policy đã cấu hình như có thể truy cập 1 [&#8230;]]]></description>
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<p class="wp-block-paragraph"><strong>1.Overview</strong></p>



<p class="wp-block-paragraph">Ultrasurf là ​​một ứng dụng proxy, nó là một chương trình được thiết kế để cho phép người dùng vượt qua các thiết bị bảo mật như firewall với web filters và application filters để lướt Internet mà không bị hạn chế với các policy đã cấu hình như có thể truy cập 1 trang web đã bị firewall block,&#8230;</p>



<p class="wp-block-paragraph">Bài viết hôm nay sẽ hướng dẫn các bạn cấu hình block ứng dụng Ultrasurf này trên Sophos XGS, không để người dùng sử dụng để vượt qua các web policy đã cấu hình.</p>



<p class="wp-block-paragraph"><strong>2. Hướng dẫn cấu hình.</strong></p>



<p class="wp-block-paragraph"><strong>Bước 1: Cấu hình Application Filter.</strong></p>



<p class="wp-block-paragraph">Đăng nhập vào giao diện quản trị <strong>Sophos XGS &gt; Protect &gt; Applications &gt; Application Filter &gt; Add.</strong></p>



<p class="wp-block-paragraph"><strong>Name:</strong> Điền tên ứng dụng bạn muốn block. <strong>Click Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img fetchpriority="high" decoding="async" width="757" height="269" src="https://thegioifirewall.com/wp-content/uploads/image-4852.png" alt="" class="wp-image-16735" srcset="https://thegioifirewall.com/wp-content/uploads/image-4852.png 757w, https://thegioifirewall.com/wp-content/uploads/image-4852-300x107.png 300w" sizes="(max-width: 757px) 100vw, 757px" /></figure></div>



<p class="wp-block-paragraph">Click chọn vào tên application bạn vừa tạo. Click <strong>Add</strong>.</p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img decoding="async" width="757" height="252" src="https://thegioifirewall.com/wp-content/uploads/image-4853.png" alt="" class="wp-image-16736" srcset="https://thegioifirewall.com/wp-content/uploads/image-4853.png 757w, https://thegioifirewall.com/wp-content/uploads/image-4853-300x100.png 300w" sizes="(max-width: 757px) 100vw, 757px" /></figure></div>



<p class="wp-block-paragraph">Tại phần Name click chọn icon filter. Điền tên <strong>Ultra </strong>trong phần <strong>Name contains</strong>. Click <strong>Apply.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img decoding="async" width="758" height="264" src="https://thegioifirewall.com/wp-content/uploads/image-4854.png" alt="" class="wp-image-16737" srcset="https://thegioifirewall.com/wp-content/uploads/image-4854.png 758w, https://thegioifirewall.com/wp-content/uploads/image-4854-300x104.png 300w" sizes="(max-width: 758px) 100vw, 758px" /></figure></div>



<p class="wp-block-paragraph">Click chọn <strong>UltraVPN và UltraSurf Proxy.</strong></p>



<p class="wp-block-paragraph"><strong>Action</strong>: chọn <strong>Deny.</strong> Click <strong>Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="684" height="353" src="https://thegioifirewall.com/wp-content/uploads/image-4855.png" alt="" class="wp-image-16738" srcset="https://thegioifirewall.com/wp-content/uploads/image-4855.png 684w, https://thegioifirewall.com/wp-content/uploads/image-4855-300x155.png 300w" sizes="auto, (max-width: 684px) 100vw, 684px" /></figure></div>



<p class="wp-block-paragraph">Tiếp tục click <strong>Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="698" height="322" src="https://thegioifirewall.com/wp-content/uploads/image-4856.png" alt="" class="wp-image-16739" srcset="https://thegioifirewall.com/wp-content/uploads/image-4856.png 698w, https://thegioifirewall.com/wp-content/uploads/image-4856-300x138.png 300w" sizes="auto, (max-width: 698px) 100vw, 698px" /></figure></div>



<p class="wp-block-paragraph"><strong>Bước 2: Cấu hình Web Policy</strong>.</p>



<p class="wp-block-paragraph">Trên giao diện quản trị <strong>Sophos XGS &gt; Protect &gt; Web &gt; Policies&gt; Add</strong> <strong>Policy.</strong></p>



<p class="wp-block-paragraph"><strong>Name:</strong> Điền tên bạn muốn. CLick <strong>Add rule.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="756" height="301" src="https://thegioifirewall.com/wp-content/uploads/image-4857.png" alt="" class="wp-image-16740" srcset="https://thegioifirewall.com/wp-content/uploads/image-4857.png 756w, https://thegioifirewall.com/wp-content/uploads/image-4857-300x119.png 300w" sizes="auto, (max-width: 756px) 100vw, 756px" /></figure></div>



<p class="wp-block-paragraph">Dưới phần <strong>Activities</strong> chọn <strong>Add New item:</strong></p>



<p class="wp-block-paragraph"><strong>+ User Activity:</strong> chọn <strong>Not Suitable for Schools; Not Suitable for the Office.</strong></p>



<p class="wp-block-paragraph">+ <strong>Web Category:</strong> chọn <strong>Anonymizers,</strong> <strong>IPAddress, Jobs Search, None, ParkedDomain, Peer-to-peer &amp; torrents, Spam URLs, Spyware &amp; Malware, Unauthorized Software Stores, Uncategorized.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="763" height="259" src="https://thegioifirewall.com/wp-content/uploads/image-4859.png" alt="" class="wp-image-16742" srcset="https://thegioifirewall.com/wp-content/uploads/image-4859.png 763w, https://thegioifirewall.com/wp-content/uploads/image-4859-300x102.png 300w" sizes="auto, (max-width: 763px) 100vw, 763px" /></figure></div>



<p class="wp-block-paragraph">Dưới phần <strong>Action:</strong> chọn <strong>block HTTP và block HTTPS</strong>.</p>



<p class="wp-block-paragraph">Click <strong>Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="678" height="317" src="https://thegioifirewall.com/wp-content/uploads/image-4860.png" alt="" class="wp-image-16743" srcset="https://thegioifirewall.com/wp-content/uploads/image-4860.png 678w, https://thegioifirewall.com/wp-content/uploads/image-4860-300x140.png 300w" sizes="auto, (max-width: 678px) 100vw, 678px" /></figure></div>



<p class="wp-block-paragraph">Chuyển qua <strong>General Settings tab &gt; HTTPS decryption and scanning.</strong></p>



<p class="wp-block-paragraph">Click chọn <strong>Block unrecognized SSL protocols và Block invalid certificates</strong>.</p>



<p class="wp-block-paragraph">Click <strong>Apply.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="750" height="267" src="https://thegioifirewall.com/wp-content/uploads/image-4861.png" alt="" class="wp-image-16744" srcset="https://thegioifirewall.com/wp-content/uploads/image-4861.png 750w, https://thegioifirewall.com/wp-content/uploads/image-4861-300x107.png 300w" sizes="auto, (max-width: 750px) 100vw, 750px" /></figure></div>



<p class="wp-block-paragraph"><strong>Bước 3: Cấu hình SSL/TLS</strong> <strong>inspections </strong></p>



<p class="wp-block-paragraph"><strong>Note:</strong> Để sử dụng  <strong>SSL/TLS</strong> <strong>inspections </strong>thiết bị người dùng cần được cài đặt <strong>SSL certificate</strong> của Sophos.</p>



<p class="wp-block-paragraph">Trên giao diện quản trị <strong>Sophos XGS &gt; Rule and Policies &gt; SSL/TLS Inspection Rule.</strong></p>



<p class="wp-block-paragraph"><strong>Click ON SSL/TLS inspection &gt; Add.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="769" height="132" src="https://thegioifirewall.com/wp-content/uploads/image-4862.png" alt="" class="wp-image-16745" srcset="https://thegioifirewall.com/wp-content/uploads/image-4862.png 769w, https://thegioifirewall.com/wp-content/uploads/image-4862-300x51.png 300w" sizes="auto, (max-width: 769px) 100vw, 769px" /></figure></div>



<p class="wp-block-paragraph">Điền các thông số sau:</p>



<p class="wp-block-paragraph"><strong>Rule name:</strong> Điền tên bạn muốn</p>



<p class="wp-block-paragraph"><strong>Action:</strong> chọn <strong>Decrypt</strong>.</p>



<p class="wp-block-paragraph"><strong>Decryption Profile:</strong> chọn <strong>Add.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="748" height="269" src="https://thegioifirewall.com/wp-content/uploads/image-4863.png" alt="" class="wp-image-16746" srcset="https://thegioifirewall.com/wp-content/uploads/image-4863.png 748w, https://thegioifirewall.com/wp-content/uploads/image-4863-300x108.png 300w" sizes="auto, (max-width: 748px) 100vw, 748px" /></figure></div>



<p class="wp-block-paragraph">Điền tên cho <strong>Decryption Profile</strong> và chọn các thống số <strong>Drop</strong> như hình dưới. Click <strong>Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="691" height="368" src="https://thegioifirewall.com/wp-content/uploads/image-4864.png" alt="" class="wp-image-16747" srcset="https://thegioifirewall.com/wp-content/uploads/image-4864.png 691w, https://thegioifirewall.com/wp-content/uploads/image-4864-300x160.png 300w" sizes="auto, (max-width: 691px) 100vw, 691px" /></figure></div>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="693" height="312" src="https://thegioifirewall.com/wp-content/uploads/image-4865.png" alt="" class="wp-image-16748" srcset="https://thegioifirewall.com/wp-content/uploads/image-4865.png 693w, https://thegioifirewall.com/wp-content/uploads/image-4865-300x135.png 300w" sizes="auto, (max-width: 693px) 100vw, 693px" /></figure></div>



<p class="wp-block-paragraph"><strong>Source zones:</strong> chọn <strong>LAN</strong></p>



<p class="wp-block-paragraph"><strong>Destination and services:</strong> chọn <strong>WAN</strong></p>



<p class="wp-block-paragraph">Click<strong> Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="667" height="389" src="https://thegioifirewall.com/wp-content/uploads/image-4866.png" alt="" class="wp-image-16749" srcset="https://thegioifirewall.com/wp-content/uploads/image-4866.png 667w, https://thegioifirewall.com/wp-content/uploads/image-4866-300x175.png 300w" sizes="auto, (max-width: 667px) 100vw, 667px" /></figure></div>



<p class="wp-block-paragraph">Đã tạo xong SSL/TLS Inspection rule.</p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="753" height="168" src="https://thegioifirewall.com/wp-content/uploads/image-4867.png" alt="" class="wp-image-16750" srcset="https://thegioifirewall.com/wp-content/uploads/image-4867.png 753w, https://thegioifirewall.com/wp-content/uploads/image-4867-300x67.png 300w" sizes="auto, (max-width: 753px) 100vw, 753px" /></figure></div>



<p class="wp-block-paragraph">B<strong>ước 4: Tạo Firewall Rule.</strong></p>



<p class="wp-block-paragraph">Trên giao diện quản trị <strong>Sophos XGS &gt; Rule and Policies &gt; Firewall Rules &gt; Add firewall rule &gt; New firewall rule.</strong></p>



<p class="wp-block-paragraph"><strong>Source zones:</strong> chọn <strong>LAN</strong></p>



<p class="wp-block-paragraph"><strong>Destination and services:</strong> chọn <strong>WAN</strong></p>



<p class="wp-block-paragraph"><strong>Services</strong>: Bạn nên chọn các service cần thiết không nên để Any.</p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="757" height="301" src="https://thegioifirewall.com/wp-content/uploads/image-4868.png" alt="" class="wp-image-16751" srcset="https://thegioifirewall.com/wp-content/uploads/image-4868.png 757w, https://thegioifirewall.com/wp-content/uploads/image-4868-300x119.png 300w" sizes="auto, (max-width: 757px) 100vw, 757px" /></figure></div>



<p class="wp-block-paragraph"><strong>Web policy</strong>: chọn policy &#8220;<strong>Block UltraSurf Web</strong>&#8221; đã tạo ở bước 2.</p>



<p class="wp-block-paragraph">Click chọn <strong>Block QUIC protocol</strong> và <strong>Scan HTTP and decrypted HTTPS</strong>.</p>



<p class="wp-block-paragraph"><strong>Identify and control applications (App control)</strong>: chọn &#8220;<strong>Block UltraSurf App</strong>&#8221; đã tạo ở bước 1.</p>



<p class="wp-block-paragraph">Click <strong>Save.</strong></p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="728" height="347" src="https://thegioifirewall.com/wp-content/uploads/image-4869.png" alt="" class="wp-image-16752" srcset="https://thegioifirewall.com/wp-content/uploads/image-4869.png 728w, https://thegioifirewall.com/wp-content/uploads/image-4869-300x143.png 300w" sizes="auto, (max-width: 728px) 100vw, 728px" /></figure></div>



<p class="wp-block-paragraph">B<strong>ước 5: Kiểm tra.</strong></p>



<p class="wp-block-paragraph">Trên thiết bị người dùng cài đặt ứng dụng UltraSurf.  </p>



<p class="wp-block-paragraph">UltraSurf sẽ hiện trạng thái là <strong>Connecting</strong>&#8230;.và người dùng sẽ không thể truy cập bất kì trang web nào</p>



<p class="wp-block-paragraph">Khi tắt UltraSurf người dùng có thể truy cập internet bình thường.</p>



<div class="wp-block-image"><figure class="aligncenter size-full"><img loading="lazy" decoding="async" width="624" height="326" src="https://thegioifirewall.com/wp-content/uploads/image-4870.png" alt="" class="wp-image-16753" srcset="https://thegioifirewall.com/wp-content/uploads/image-4870.png 624w, https://thegioifirewall.com/wp-content/uploads/image-4870-300x157.png 300w" sizes="auto, (max-width: 624px) 100vw, 624px" /></figure></div>
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