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SRE
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SRE
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SRE Site Reliability Engineering
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Networking
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Networking
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Introduction
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CIDR subnets
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IPAM Tools. NetBox IPAM
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HTTP Protocols
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HTTP Status Codes
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HTTP/2
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HTTP/3
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HTTP Structured Fields
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Container Networking
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Azure
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Load Balancing
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DNS
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Images
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Tweets
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DevSecOps
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<h1 id="networking">Networking</h1>
<ol>
<li><a href="#introduction">Introduction</a></li>
<li><a href="#cidr-subnets">CIDR subnets</a><ol>
<li><a href="#ipam-tools-netbox-ipam">IPAM Tools. NetBox IPAM</a></li>
</ol>
</li>
<li><a href="#http-protocols">HTTP Protocols</a><ol>
<li><a href="#http-status-codes">HTTP Status Codes</a></li>
<li><a href="#http2">HTTP/2</a></li>
<li><a href="#http3">HTTP/3</a></li>
<li><a href="#http-structured-fields">HTTP Structured Fields</a></li>
</ol>
</li>
<li><a href="#container-networking">Container Networking</a></li>
<li><a href="#azure">Azure</a></li>
<li><a href="#load-balancing">Load Balancing</a></li>
<li><a href="#dns">DNS</a></li>
<li><a href="#images">Images</a></li>
<li><a href="#tweets">Tweets</a></li>
</ol>
<h2 id="introduction">Introduction</h2>
<ul>
<li><a href="https://networkwalks.com/tcp-ip-model">networkwalks.com: TCP/IP Model</a></li>
<li><a href="https://devopscube.com/ip-address-tutorial">devopscube.com: IP Address Tutorial For Beginners [IPV4 and IPV6 Protocols]</a></li>
<li><a href="https://medium.com/javarevisited/best-https-ssl-and-tls-courses-for-beginners-4437661250b3">medium.com/javarevisited: 5 Best HTTPS, SSL and TLS Courses for Beginners in 2022</a> These are the best online courses to learn about HTTPS, SSL, and TLS for programmers and developers in 2022</li>
<li><a href="https://blog.coderco.io/p/tcp-fundamentals-for-software-and">blog.coderco.io: TCP Fundamentals for Software &amp; DevOps Engineers: Building a Strong Foundation in Networking</a></li>
</ul>
<h2 id="cidr-subnets">CIDR subnets</h2>
<ul>
<li><a href="https://cidr.xyz"><mark>cidr.xyz</mark> 🌟</a> An interactive IP address and CIDR range visualizer</li>
<li><a href="http://magic-cookie.co.uk/iplist.html">magic-cookie.co.uk/iplist.html</a> Convert CIDR notation to a range of IP addresses</li>
<li><a href="https://en.wikipedia.org/wiki/Classful_network">https://en.wikipedia.org/wiki/Classful_network</a></li>
<li><a href="https://gist.github.com/chadmcrowell/f3fc3be2ca1fcb887034162c14d77e74">gist.github.com: chadmcrowell/cidr.sh 🌟</a></li>
<li><a href="https://opensource.com/article/16/12/cidr-network-notation-configuration-linux"><mark>opensource.com: A Linux networking guide to CIDR notation and configuration - sipcalc</mark> 🌟</a></li>
<li><a href="https://pbxbook.com/other/cidrcheat.html">pbxbook.com: CIDR Cheat Sheet</a></li>
<li><a href="https://www.aelius.com/njh/subnet_sheet.html">aelius.com: subnet sheet</a></li>
<li><a href="https://networkproguide.com/cidr-subnet-mask-ipv4-cheat-sheet">networkproguide.com: CIDR Subnet Mask Cheat Sheet</a></li>
<li><a href="https://kb.wisc.edu/ns/page.php?id=3493">wisc.edu: CIDR Conversion Table</a></li>
<li><a href="https://dzone.com/articles/what-is-cidr-classless-inter-domain-routing-in-mul">dzone: What Is CIDR (Classless Inter-Domain Routing)</a></li>
<li><a href="https://www.cyberciti.biz/faq/linux-subnet-calculator-cidr">cyberciti.biz: Linux: IP Subnet (CIDR) Calculator That Will Help You With Network Settings</a></li>
<li><a href="https://www.cyberciti.biz/tips/perform-simple-manipulation-of-ip-addresse.html">cyberciti.biz: Linux Calculating Subnets with ipcalc and sipcalc Utilities</a></li>
<li><a href="https://www.tecmint.com/calculate-ip-subnet-address-with-ipcalc-tool">tecmint.com: How to Calculate IP Subnet Address with ipcalc Tool</a></li>
<li><a href="https://awesomeopensource.com/projects/cidr">awesomeopensource.com: The Top 110 Cidr Open Source Projects on Github 🌟</a></li>
<li><a href="https://mattrickard.com/how-to-calculate-a-cidr">matt-rickard.com: How to Calculate a CIDR</a></li>
<li><a href="https://build5nines.com/ipv4-address-cidr-range-reference-and-calculator">build5nines.com: IPv4 Address CIDR Range Reference and Calculator</a></li>
</ul>
<h3 id="ipam-tools-netbox-ipam">IPAM Tools. NetBox IPAM</h3>
<ul>
<li><a href="https://github.com/netbox-community/netbox"><mark>github.com/netbox-community/netbox</mark> 🌟</a></li>
<li><a href="https://netboxlabs.com/blog/netbox-ipam">netboxlabs.com: An In-Depth Guide to NetBox for IPAM</a></li>
<li><a href="https://www.youtube.com/playlist?list=PL7sEPiUbBLo_iTds-NV-9Tu05Gg2Aj8N7">youtube: NetBox Zero To Hero</a></li>
<li><a href="https://hub.docker.com/r/netboxcommunity/netbox">https://hub.docker.com/r/netboxcommunity/netbox</a></li>
<li><a href="https://docs.ansible.com/projects/ansible/latest/collections/netbox/netbox/index.html">docs.ansible.com: Netbox Ansible Modules 🌟</a></li>
</ul>
<h2 id="http-protocols">HTTP Protocols</h2>
<ul>
<li><a href="https://wizardzines.com/comics/request-headers">wizardzines.com: Request Headers</a></li>
<li><a href="https://wizardzines.com/comics/response-headers">wizardzines.com: Response Headers</a></li>
</ul>
<h3 id="http-status-codes">HTTP Status Codes</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/List_of_HTTP_status_codes">wikipedia: List of HTTP status codes</a></li>
<li><a href="http://www.slideshare.net/AdelaRoger/http-status-code-errors-in-seo">slideshare: Http Status Code Errors in SEO</a></li>
<li><a href="https://http.cat">http.cat 🌟</a></li>
</ul>
<center>
<p><a href="https://x.com/alexxubyte"><img alt="http status codes" src="images/http_status_codes.jpg" style="width:50%" /></a></p>
</center>
<h3 id="http2">HTTP/2</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/HTTP/2">Wikipedia: HTTP/2</a></li>
<li><a href="https://www.youtube.com/watch?v=WkLBrHW4NhQ">SPDY &amp; HTTP 2 with Akamai CTO Guy Podjarny</a><ul>
<li><a href="http://http2-explained.haxx.se">cURL mantainer: http2 explained 🌟</a></li>
<li><a href="http://daniel.haxx.se/blog/2015/12/14/curl-and-http2-by-default">cURL mantainer: curl and HTTP/2 by default</a></li>
<li><a href="http://daniel.haxx.se/blog/2015/12/20/a-2015-retrospective">cURL mantainer: A 2015 retrosprective</a></li>
<li><a href="https://http2.github.io">http2.github.io HTTP/2 🌟</a></li>
<li><a href="https://http2.github.io/faq">http2.github.io HTTP/2 Frequently Asked Questions 🌟</a></li>
<li><a href="https://pinboard.in/u:rmurphey/t:http2">HTTP/2 resources</a></li>
<li><a href="https://blog.httpwatch.com/2015/01/16/a-simple-performance-comparison-of-https-spdy-and-http2/comment-page-1">A Simple Performance Comparison of HTTPS, SPDY and HTTP/2 🌟</a></li>
<li><a href="https://blog.cloudflare.com/tools-for-debugging-testing-and-using-http-2">blog.cloudflare.com - Tools for debugging, testing and using HTTP/2</a></li>
<li><a href="https://blog.cloudflare.com/http-2-for-web-developers">blog.cloudflare.com - HTTP/2 For Web Developers</a></li>
</ul>
</li>
<li><a href="http://blog.eisele.net/2015/11/http2-with-jboss-eap-7.html">HTTP/2 With JBoss EAP 7 - Tech Preview</a></li>
<li><a href="https://www.red-gate.com/simple-talk/development/dotnet-development/script-loading-between-http1-1-and-http2">simple-talk.com: Script Loading between HTTP/1.1 and HTTP/2</a></li>
<li><a href="http://www.tecmint.com/apache-performance-tuning">5 Tips to Boost the Performance of Your Apache Web Server</a></li>
</ul>
<h3 id="http3">HTTP/3</h3>
<ul>
<li><a href="https://en.wikipedia.org/wiki/HTTP/3">Wikipedia: HTTP/3</a></li>
<li><a href="https://http3-explained.haxx.se"><mark>http3-explained.haxx.se: HTTP/3 explained</mark> 🌟</a></li>
<li><a href="https://alexandrehtrb.github.io/posts/2024/03/http2-and-http3-explained">alexandrehtrb.github.io: HTTP/2 and HTTP/3 explained</a></li>
</ul>
<h3 id="http-structured-fields">HTTP Structured Fields</h3>
<ul>
<li><a href="https://www.fastly.com/blog/improve-http-structured-headers">Improving HTTP with structured header fields 🌟</a></li>
<li><a href="https://pypi.org/project/http-sfv">http-sfv: HTTP Structured Field Values in Python</a></li>
</ul>
<h2 id="container-networking">Container Networking</h2>
<ul>
<li><a href="https://blog.cloudtrooper.net/2025/02/17/private-link-reality-bites-service-endpoints-vs-private-link">Private Link Reality Bites: Service Endpoints vs Private Link</a> - <em>(Related to kubernetes-networking topic)</em></li>
</ul>
<h2 id="azure">Azure</h2>
<ul>
<li><a href="https://blog.cloudtrooper.net/2026/01/16/which-azure-network-is-cheaper">Which Azure Network is Cheaper?</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://mattias.engineer/blog/2025/azure-ipam-with-terraform">Manage Azure IPAM with Terraform</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://techcommunity.microsoft.com/blog/azurenetworkingblog/deploying-virtual-networks-across-tenants-using-azure-virtual-network-manager-ip/4410161">Deploying Virtual Networks Across Tenants Using Azure Virtual Network Manager</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://techcommunity.microsoft.com/blog/azurenetworkingblog/introducing-subnet-peering-in-azure/4383841">Introducing Subnet Peering in Azure</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://hansencloud.com/2025/02/24/reduce-latency-with-azure-proximity-placement-groups">Reduce Latency with Azure Proximity Placement Groups</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://techcommunity.microsoft.com/blog/azurenetworksecurityblog/building-a-ddos-response-plan/4372256">Building a DDoS Response Plan with Azure DDoS Protection</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://techcommunity.microsoft.com/blog/AzureInfrastructureBlog/azure-expressroute-resiliency-best-practices-for-production-critical-workloads/4394842">Azure ExpressRoute Resiliency: Best Practices for Production-Critical Workloads</a> - <em>(Related to aws-networking topic)</em></li>
<li><a href="https://medium.com/@codebob75/application-network-security-in-azure-subnets-endpoints-dns-nsgs-with-terraform-code-0bcabdb3a65b">Application Network Security in Azure Subnets, Endpoints, DNS, NSGs with Terraform Code</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://azure.microsoft.com/en-us/explore/global-infrastructure/products-by-region/table">Azure Products by Region Table</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://learn.microsoft.com/en-us/azure/architecture/networking/architecture/hub-spoke">Hub-Spoke Network Topology in Azure - Azure Architecture Center</a> - <em>(Related to azure topic)</em></li>
<li><a href="https://learn.microsoft.com/en-us/azure/private-link/network-security-perimeter-concepts">Azure Network Security Perimeter Concepts</a> - <em>(Related to azure topic)</em></li>
<li>
<p><a href="https://techcommunity.microsoft.com/blog/AzureNetworkingBlog/a-guide-to-azure-data-transfer-pricing/4374538">A Guide to Azure Data Transfer Pricing</a> - <em>(Related to azure topic)</em></p>
</li>
<li>
<p><a href="https://labs.iximiuz.com/tutorials/container-networking-from-scratch">iximiuz.com: Container Networking Is Simple! 🌟</a></p>
<ul>
<li>How to virtualize network resources to make containers think each of them has a dedicated network stack?</li>
<li>How to reach the outside world (e.g. the Internet) from inside the container?</li>
</ul>
</li>
</ul>
<h2 id="load-balancing">Load Balancing</h2>
<ul>
<li>
<p><a href="https://kubernetes.io/blog/2025/02/28/nftables-kube-proxy">NFTables mode for kube-proxy in Kubernetes</a> - <em>(Related to kubernetes-networking topic)</em></p>
</li>
<li>
<p><a href="https://harshityadav95.medium.com/load-balancing-layer-4-vs-layer-7-f37a839afd9c">harshityadav95.medium.com: Load Balancing Layer 4 vs Layer 7</a></p>
</li>
</ul>
<h2 id="dns">DNS</h2>
<ul>
<li><a href="https://media.pearsoncmg.com/aw/ecs_kurose_compnetwork_7/cw/content/interactiveanimations/recursive-iterative-queries-in-dns/index.html"><mark>media.pearsoncmg.com: Recursive/Iterative Queries in DNS</mark></a> In Chapter 2 of the text the authors give examples of recursive and iterative DNS queries. This DNS interactive animation animates additional combinations of iterative and recursive queries among four name servers.</li>
</ul>
<h2 id="images">Images</h2>
<details class="note">
<summary>Click to expand!</summary>
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<p><img alt="how does https work" src="images/how_does_https_work.png" /></p>
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<h2 id="tweets">Tweets</h2>
<details class="note">
<summary>Click to expand!</summary>
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<p><blockquote class="twitter-tweet"><p lang="en" dir="ltr">List of HTTP Status Codes Cheat Sheet: <a href="https://t.co/1m8gci63Vs">pic.twitter.com/1m8gci63Vs</a></p>&mdash; Java Guides (@GuidesJava) <a href="https://twitter.com/GuidesJava/status/1607231830662733826?ref_src=twsrc%5Etfw">December 26, 2022</a></blockquote> <script async src="assets/external/platform.twitter.com/widgets.js" charset="utf-8"></script></p>
<p><blockquote class="twitter-tweet"><p lang="nl" dir="ltr">IPv4 vs IPv6 <a href="https://t.co/mZnHL3E8Zu">pic.twitter.com/mZnHL3E8Zu</a></p>&mdash; LetsDefend (@LetsDefendIO) <a href="https://twitter.com/LetsDefendIO/status/1629141685383966722?ref_src=twsrc%5Etfw">February 24, 2023</a></blockquote> <script async src="assets/external/platform.twitter.com/widgets.js" charset="utf-8"></script></p>
<p><blockquote class="twitter-tweet"><p lang="en" dir="ltr">/1 Which HTTP status codes are most common?<br><br>The response codes for HTTP are divided into five categories:<br><br>Informational (100-199)<br>Success (200-299)<br>Redirection (300-399)<br>Client Error (400-499)<br>Server Error (500-599) <a href="https://t.co/39I34KqQoU">pic.twitter.com/39I34KqQoU</a></p>&mdash; Alex Xu (@alexxubyte) <a href="https://x.com/alexxubyte/status/1638567471857958913?ref_src=twsrc%5Etfw">March 22, 2023</a></blockquote> <script async src="assets/external/platform.twitter.com/widgets.js" charset="utf-8"></script></p>
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