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	<title>udp &#8211; Noise</title>
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	<link>https://noise.getoto.net</link>
	<description>The collective thoughts of the interwebz</description>
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		<title>QUIC restarts, slow problems: udpgrm to the rescue</title>
		<link>https://noise.getoto.net/2025/05/07/quic-restarts-slow-problems-udpgrm-to-the-rescue/</link>
		
		<dc:creator><![CDATA[Marek Majkowski]]></dc:creator>
		<pubDate>Wed, 07 May 2025 13:00:00 +0000</pubDate>
				<category><![CDATA[linux]]></category>
		<category><![CDATA[programming]]></category>
		<category><![CDATA[udp]]></category>
		<guid isPermaLink="false">http://noise.getoto.net/?guid=8b17e6540859a6902a2787240a6846b8</guid>

					<description><![CDATA[udpgrm is a lightweight daemon for graceful restarts of UDP servers. It leverages SO_REUSEPORT and eBPF to route new and existing flows to the correct server instance.]]></description>
		
		
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			</item>
		<item>
		<title>Lost in transit: debugging dropped packets from negative header lengths</title>
		<link>https://noise.getoto.net/2023/06/26/lost-in-transit-debugging-dropped-packets-from-negative-header-lengths/</link>
		
		<dc:creator><![CDATA[Terin Stock]]></dc:creator>
		<pubDate>Mon, 26 Jun 2023 13:00:56 +0000</pubDate>
				<category><![CDATA[deep dive]]></category>
		<category><![CDATA[IPVS]]></category>
		<category><![CDATA[udp]]></category>
		<guid isPermaLink="false">http://noise.getoto.net/?guid=37d2c5e33b167f44c997c4c29dd4a0fb</guid>

					<description><![CDATA[In this post, we'll provide some insight into the process of investigating networking issues and how to begin debugging issues in the kernel using pwru and kprobe tracepoints]]></description>
		
		
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		<title>Argo Smart Routing for UDP: speeding up gaming, real-time communications and more</title>
		<link>https://noise.getoto.net/2023/06/20/argo-smart-routing-for-udp-speeding-up-gaming-real-time-communications-and-more/</link>
		
		<dc:creator><![CDATA[Achiel van der Mandele]]></dc:creator>
		<pubDate>Tue, 20 Jun 2023 13:00:40 +0000</pubDate>
				<category><![CDATA[Argo Smart Routing]]></category>
		<category><![CDATA[Performance]]></category>
		<category><![CDATA[Spectrum]]></category>
		<category><![CDATA[Speed Week]]></category>
		<category><![CDATA[udp]]></category>
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					<description><![CDATA[Today, Cloudflare is super excited to announce that we’re bringing traffic acceleration to customer’s UDP traffic. Now, you can improve the latency of UDP-based applications like video games, voice calls, and video meetings by up to 17%]]></description>
		
		
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			</item>
		<item>
		<title>How to stop running out of ephemeral ports and start to love long-lived connections</title>
		<link>https://noise.getoto.net/2022/02/02/how-to-stop-running-out-of-ephemeral-ports-and-start-to-love-long-lived-connections/</link>
		
		<dc:creator><![CDATA[Marek Majkowski]]></dc:creator>
		<pubDate>Wed, 02 Feb 2022 09:53:28 +0000</pubDate>
				<category><![CDATA[deep dive]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[networking]]></category>
		<category><![CDATA[TCP]]></category>
		<category><![CDATA[udp]]></category>
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					<description><![CDATA[Often programmers have assumptions that turn out, to their surprise, to be invalid. From my experience this happens a lot. Every API, technology or system can be abused beyond its limits and break in a miserable way]]></description>
		
		
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		<title>Extending Cloudflare’s Zero Trust platform to support UDP and Internal DNS</title>
		<link>https://noise.getoto.net/2021/12/08/extending-cloudflares-zero-trust-platform-to-support-udp-and-internal-dns/</link>
		
		<dc:creator><![CDATA[Abe Carryl]]></dc:creator>
		<pubDate>Wed, 08 Dec 2021 13:59:15 +0000</pubDate>
				<category><![CDATA[CIO Week]]></category>
		<category><![CDATA[Cloudflare One]]></category>
		<category><![CDATA[Cloudflare Tunnel]]></category>
		<category><![CDATA[Product News]]></category>
		<category><![CDATA[udp]]></category>
		<category><![CDATA[Zero-Trust]]></category>
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					<description><![CDATA[Last year, we launched a new feature which empowered users to begin building a private network on Cloudflare. Today, we’re excited to announce even more features which make your Zero Trust migration easier than ever.]]></description>
		
		
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		<title>Everything you ever wanted to know about UDP sockets but were afraid to ask, part 1</title>
		<link>https://noise.getoto.net/2021/11/25/everything-you-ever-wanted-to-know-about-udp-sockets-but-were-afraid-to-ask-part-1/</link>
		
		<dc:creator><![CDATA[Marek Majkowski]]></dc:creator>
		<pubDate>Thu, 25 Nov 2021 17:27:37 +0000</pubDate>
				<category><![CDATA[udp]]></category>
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					<description><![CDATA[Historically Cloudflare's core competency was operating an HTTP reverse proxy. We've spent significant effort optimizing traditional HTTP/1.1 and HTTP/2 servers running on top of TCP. Recently though, we started operating big scale stateful UDP services.]]></description>
		
		
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		<title>Cloudflare blocks an almost 2 Tbps multi-vector DDoS attack</title>
		<link>https://noise.getoto.net/2021/11/13/cloudflare-blocks-an-almost-2-tbps-multi-vector-ddos-attack/</link>
		
		<dc:creator><![CDATA[Omer Yoachimik]]></dc:creator>
		<pubDate>Sat, 13 Nov 2021 14:33:49 +0000</pubDate>
				<category><![CDATA[Attacks]]></category>
		<category><![CDATA[botnet]]></category>
		<category><![CDATA[ddos]]></category>
		<category><![CDATA[DNS]]></category>
		<category><![CDATA[mirai]]></category>
		<category><![CDATA[udp]]></category>
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					<description><![CDATA[Earlier this week, Cloudflare automatically detected and mitigated a DDoS attack that peaked just below 2 Tbps — the largest we’ve seen to date.]]></description>
		
		
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			</item>
		<item>
		<title>Update on recent VoIP attacks: What should I do if I’m attacked?</title>
		<link>https://noise.getoto.net/2021/10/07/update-on-recent-voip-attacks-what-should-i-do-if-im-attacked/</link>
		
		<dc:creator><![CDATA[Omer Yoachimik]]></dc:creator>
		<pubDate>Thu, 07 Oct 2021 02:20:59 +0000</pubDate>
				<category><![CDATA[ddos]]></category>
		<category><![CDATA[Ransom DDoS]]></category>
		<category><![CDATA[REvil]]></category>
		<category><![CDATA[SIP]]></category>
		<category><![CDATA[Trends]]></category>
		<category><![CDATA[udp]]></category>
		<category><![CDATA[VoIP]]></category>
		<guid isPermaLink="false">http://noise.getoto.net/?guid=d04419a8aea3a3abd106e083cbe03759</guid>

					<description><![CDATA[Because of the sustained attacks we are observing, we are sharing details on recent attack patterns, what steps they should take before an attack, and what to do after an attack has taken place.]]></description>
		
		
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			</item>
		<item>
		<title>Raking the floods: How to protect UDP services from DoS attacks with eBPF</title>
		<link>https://noise.getoto.net/2020/09/18/raking-the-floods-how-to-protect-udp-services-from-dos-attacks-with-ebpf/</link>
		
		<dc:creator><![CDATA[Jonas Otten]]></dc:creator>
		<pubDate>Fri, 18 Sep 2020 11:00:00 +0000</pubDate>
				<category><![CDATA[eBPF]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[programming]]></category>
		<category><![CDATA[udp]]></category>
		<guid isPermaLink="false">http://noise.getoto.net/?guid=0e462d28efee1c6b38ea3dd53307d005</guid>

					<description><![CDATA[SYN-cookies help mitigating SYN-floods for TCP, but how can we protect services from similar attacks that use UDP? We designed an algorithm and a library to fill this gap, and it&#8217;s open source!]]></description>
		
		
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