<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Network Defense Blog - Networking & Cyber Security]]></title><description><![CDATA[Networking & Cyber Security blog by Brandon Hitzel]]></description><link>https://www.networkdefenseblog.com/blog</link><generator>RSS for Node</generator><lastBuildDate>Wed, 13 May 2026 07:07:07 GMT</lastBuildDate><atom:link href="https://www.networkdefenseblog.com/blog-feed.xml" rel="self" type="application/rss+xml"/><item><title><![CDATA[Network Design: Circuit, Active/Active BGP, and other Network Edge Design Considerations]]></title><description><![CDATA[Network Edge Design post, includes Active/Active, circuit, BGP, and other design considerations]]></description><link>https://www.networkdefenseblog.com/post/network-edge-design-part2</link><guid isPermaLink="false">66c21ea5fb421daa2eae2ccb</guid><category><![CDATA[Networking]]></category><category><![CDATA[Opinion]]></category><category><![CDATA[Study/Certifications]]></category><category><![CDATA[Cyber Security]]></category><pubDate>Sat, 13 Sep 2025 20:21:52 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_b00239fb711442f3af982e55dd051a2d~mv2.png/v1/fit/w_977,h_738,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[PSA: Traceroute - Safe and Effective to use]]></title><description><![CDATA[Public Service Announcement about the Traceroute tool used by network engineers. ]]></description><link>https://www.networkdefenseblog.com/post/psa-traceroute</link><guid isPermaLink="false">6777193f0adca6e29cb8d5db</guid><category><![CDATA[Networking]]></category><category><![CDATA[Opinion]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Fri, 03 Jan 2025 18:28:37 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/11062b_02ba8b80cf1f488f9aa98dcf9482f0a8~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Identify, Isolate, Repair - Network Troubleshooting Tales and Tips]]></title><description><![CDATA[Discussing network troubleshooting tips, stories, and insights including 2 troubleshooting scenarios]]></description><link>https://www.networkdefenseblog.com/post/network-troubleshooting-tips</link><guid isPermaLink="false">658b14d94d30661b18457e8a</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><category><![CDATA[Opinion]]></category><category><![CDATA[Tech]]></category><pubDate>Sun, 31 Dec 2023 22:26:29 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_46d85d35d3674bd2868d3c4dd42a36b5~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[3 Firewall Protection Techniques to Enhance Network Defenses]]></title><description><![CDATA[Three solid protection techniques you can implement on your firewall to enhance network security.]]></description><link>https://www.networkdefenseblog.com/post/firewall-protection-techniques</link><guid isPermaLink="false">64288a7a6c6ac94153c35438</guid><category><![CDATA[Cyber Security]]></category><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Mon, 17 Apr 2023 06:17:28 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_603d4a58cfef41d59f8ef7dba6c957cf~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Network Design: Dual ISP, DMZ, and the Network Edge]]></title><description><![CDATA[Detailed post about the network edge. Contains  high and low level designs, considerations for Dual ISPs, and BGP guidance. ]]></description><link>https://www.networkdefenseblog.com/post/network-design-network-edge</link><guid isPermaLink="false">63274b235504a7891c3e1af4</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><category><![CDATA[Opinion]]></category><pubDate>Tue, 01 Nov 2022 06:26:34 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_e652659b31264c948b70087847a5386d~mv2.png/v1/fit/w_991,h_726,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Enterprise Wireless Design - ENWLSD Cisco Certification Study Material]]></title><description><![CDATA[An overview of the material used to study and pass the Designing Cisco Enterprise Wireless Networks ENWLSD (300-425) Network Certification]]></description><link>https://www.networkdefenseblog.com/post/enwlsd-materials</link><guid isPermaLink="false">62ae5e678786f35840ecd9e9</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Sun, 19 Jun 2022 01:26:54 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_46fc568b47a843a0876749d73e5b2034~mv2.png/v1/fit/w_299,h_199,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Art of War: Why Russia Failed to Achieve a Gulf War Style Victory in Ukraine ]]></title><description><![CDATA[Analysis post on the Russian Military Performance in Ukraine while comparing to the Gulf War Conflicts in Iraq and Kuwait. ]]></description><link>https://www.networkdefenseblog.com/post/art-of-war-ukraine-gulf-war</link><guid isPermaLink="false">624a85fd316298b583698130</guid><category><![CDATA[Opinion]]></category><category><![CDATA[Cyber War & Battle]]></category><category><![CDATA[Defense]]></category><category><![CDATA[News]]></category><pubDate>Sun, 17 Apr 2022 01:40:18 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_e414ba1859ee4789a8347fb9103f653c~mv2.jpg/v1/fit/w_760,h_538,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Troubleshooting with Wireshark: The Case of the Gratuitous ARP]]></title><description><![CDATA[The story of a strange troubleshooting scenario where devices stop communicating inexplicably. Wireshark packet capture used for resolution.]]></description><link>https://www.networkdefenseblog.com/post/troubleshooting-wireshark-arp</link><guid isPermaLink="false">61e31a135f93bf0016eb2c6e</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Sun, 16 Jan 2022 17:57:29 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_513599775f784427aaf85b6ab4f7f625~mv2.png/v1/fit/w_351,h_342,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Road to 2030: Controlling the cyber supply chain and the chips it produces]]></title><description><![CDATA[Opinion piece about the cyber supply chain and how national security should be the focal point over the next decade]]></description><link>https://www.networkdefenseblog.com/post/road-to-2030-cyber-supply-chain</link><guid isPermaLink="false">5fdfdeeae20b2a0017a9b1fb</guid><category><![CDATA[Tech]]></category><category><![CDATA[News]]></category><category><![CDATA[Opinion]]></category><category><![CDATA[Cyber War & Battle]]></category><pubDate>Wed, 23 Dec 2020 19:40:00 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/11062b_efb1b630b7f34fc69c3bd82d90b60339~mv2.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Biggest Single Point of Failure in Human History - a Cloud]]></title><description><![CDATA[Opinion: Could we be setting ourselves up for problems with cloud dependency? Analysis and opinion of IT architecture trends]]></description><link>https://www.networkdefenseblog.com/post/biggest-single-point-of-failure</link><guid isPermaLink="false">5f83ae1d6a6c0900171db51a</guid><category><![CDATA[Networking]]></category><category><![CDATA[Tech]]></category><category><![CDATA[Opinion]]></category><pubDate>Thu, 15 Oct 2020 05:22:37 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_764afde36c49424c91d6a5e7789177de~mv2.png/v1/fit/w_1000,h_900,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Network Design Scenario #3: Remote Access VPN Design]]></title><description><![CDATA[Network Design covering Remote Access Client based VPNs aka SSL VPN]]></description><link>https://www.networkdefenseblog.com/post/network-vpn-design</link><guid isPermaLink="false">5ea49dc498e77700175cc279</guid><category><![CDATA[Networking]]></category><category><![CDATA[Cyber Security]]></category><pubDate>Sun, 26 Apr 2020 23:30:41 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_a7b5b904b2fb4da3ba837d8004b77cca~mv2.png/v1/fit/w_867,h_628,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Troubleshooting with Wireshark: The Case of the TCP Challenge ACK ]]></title><description><![CDATA[Troubleshooting an issue where the server replies with an ACK only instead of SYN/ACK. Also I will show a few simple Wireshark tips.]]></description><link>https://www.networkdefenseblog.com/post/wireshark-tcp-challenge-ack</link><guid isPermaLink="false">5ddb4e6ea04ef40017431e78</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Tue, 26 Nov 2019 07:03:25 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_f3f7f5c63b8a48419528057b149aa248~mv2.png/v1/fit/w_922,h_571,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Cisco IT Blog Award Finalist in "Best Analysis" ]]></title><description><![CDATA[Network Defense Blog has become a finalist in the Cisco IT Blog Awards! Vote now!]]></description><link>https://www.networkdefenseblog.com/post/cisco-it-blog-award-finalist</link><guid isPermaLink="false">5dd8ab3cd43fa4001765d2c3</guid><category><![CDATA[Networking]]></category><category><![CDATA[Cyber Security]]></category><category><![CDATA[Tech]]></category><category><![CDATA[Study/Certifications]]></category><category><![CDATA[News]]></category><category><![CDATA[Cyber War & Battle]]></category><pubDate>Sat, 23 Nov 2019 04:39:12 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_3c41d0a336864a4a936f9c12471517cc~mv2.png/v1/fit/w_520,h_520,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[5 Easy Router Protection Techniques - includes Attack and Packet Analysis ]]></title><description><![CDATA[Executing attacks against a router using Kali Linux with Wireshark and the 5 easy steps to protect against them.]]></description><link>https://www.networkdefenseblog.com/post/5-easy-router-attacks-and-protections</link><guid isPermaLink="false">5d81a77d950de40017b5c0db</guid><category><![CDATA[Cyber Security]]></category><category><![CDATA[Networking]]></category><pubDate>Wed, 25 Sep 2019 04:59:30 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_02ba96a0f8714a88b9a2e35722bddeb4~mv2.png/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Art of Cyber War and Cyber Battle: Deception Operations]]></title><description><![CDATA[Deception is a key part of both physical and cyber battle strategies. This detailed post takes an abstract look at each.]]></description><link>https://www.networkdefenseblog.com/post/art-of-cyber-war-deception</link><guid isPermaLink="false">5d3e4b461345f10016e5b21f</guid><category><![CDATA[Cyber War & Battle]]></category><pubDate>Thu, 08 Aug 2019 02:20:57 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/656f5c4c31744596b6d334410c3cc0db.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Art of Cyber War and Cyber Battle: Formations ]]></title><description><![CDATA[This post abstractly looks at the relations of some ancient and modern battle formations. How would you describe your network formation?]]></description><link>https://www.networkdefenseblog.com/post/art-of-cyber-war-formations</link><guid isPermaLink="false">5c5d209d43989605bd6ff64f</guid><category><![CDATA[Cyber War & Battle]]></category><category><![CDATA[Cyber Security]]></category><pubDate>Sun, 07 Jul 2019 19:04:17 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_742aaa5c87494608b11c4056cf788909~mv2.jpg/v1/fit/w_1000,h_700,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[CCDP Certification Study Material]]></title><description><![CDATA[Cisco Certified Design Professional 300-320 study resources 2019]]></description><link>https://www.networkdefenseblog.com/post/ccdp-study-material</link><guid isPermaLink="false">5cf3e5d78a6cf20015057294</guid><category><![CDATA[Study/Certifications]]></category><category><![CDATA[News]]></category><pubDate>Sun, 02 Jun 2019 16:14:03 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_4d25153adaa44671b59c0436c159c625~mv2.jpg/v1/fit/w_300,h_300,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Network Design Scenario #2: DMZ Design]]></title><description><![CDATA[This scenario covers the network Demilitarized zone or DMZ. Network segmentation is key for network defense. This post will discuss various ]]></description><link>https://www.networkdefenseblog.com/post/design-scenario-2-dmz-design</link><guid isPermaLink="false">5b99ae6c13e3e90033d584a6</guid><category><![CDATA[Networking]]></category><category><![CDATA[Cyber Security]]></category><category><![CDATA[Study/Certifications]]></category><pubDate>Wed, 20 Mar 2019 01:07:52 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_f47a25f26d4041c9add3a32515d88ead~mv2.png/v1/fit/w_1000,h_826,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[Challenge Labs #2: Switching &#38; Layer 2]]></title><description><![CDATA[These challenge labs cover layer 2 switching technology and protections  Below I will showcase labs focused on switching which should...]]></description><link>https://www.networkdefenseblog.com/post/challenge-labs-layer-2-labs</link><guid isPermaLink="false">5c524e04e95db3001c4c2bc2</guid><category><![CDATA[Networking]]></category><category><![CDATA[Study/Certifications]]></category><category><![CDATA[Cyber Security]]></category><pubDate>Fri, 01 Feb 2019 02:37:00 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/3e8933_027eb87b063c45c488bf2104ab3b1c8c~mv2.png/v1/fit/w_1000,h_906,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item><item><title><![CDATA[The Art of Cyber War and Cyber Battle - Series Introduction]]></title><description><![CDATA[This series will revolve around comparing and contrasting Traditional War to Cyber War The opening wave Over the last thousands of years...]]></description><link>https://www.networkdefenseblog.com/post/the-art-of-cyber-war-and-cyber-battle</link><guid isPermaLink="false">5c4521bff3d71c001c700e4d</guid><category><![CDATA[Cyber War & Battle]]></category><pubDate>Mon, 21 Jan 2019 03:26:34 GMT</pubDate><enclosure url="https://static.wixstatic.com/media/6cbf5621bc1a4e96a5339968ad1f88fc.jpg/v1/fit/w_1000,h_1000,al_c,q_80/file.png" length="0" type="image/png"/><dc:creator></dc:creator></item></channel></rss>