June Tailscale newsletter

This is a re-publishing of our monthly newsletter sent to subscribers earlier this month. Sign up to receive future email newsletters.Another month brings with it another set of Tailscale client updates and features. Heres what weve been working on: Tailscale v0.99 Shields Up About a week ago we released Tailscale v0.99 (full release notes). v0.99 includes more bug fixes and a new feature we’ve b

een calling “shields up.”

Tailscale can be used many ways, but it’s commonly used to connect to web servers, Raspberry Pis, build servers, or other headless “utility” devices. You want to connect to these devices, but just because theyre on your network doesnt mean you dont want to let these devices connect to you. This new feature lets any device put its “shields up” and reject all incoming connections over Tailscale. Outgoing connections will still work fine, so your personal computer can continue to SSH to your servers who dont have their shields up, but all incoming connections will be blocked. You can enable this feature from Tailscales menu bar icon, or by using –shields-up flag on Linux. Read more about shields up here (Network admins can enforce network-wide connection restriction, including blocking specific ports or allowing particular user groups with our ACL features) iOS App Updates Weve also released the most important update to our iOS app yet. For a while now, our iOS app would lose its connection after a few hours. iOS automatically closes background applications using too much memory, and the Tailscale iOS client was going over the limit and being silently closed. Tailscale team member @bradfitz went on an odyssey to fix this: he built tools to dig into Go binary sizes, modified our fork of the Go compiler to minimize memory, and produced all manner of diagnostic charts, reducing our memory usage significantly. But no luck, the connection loss remained. After more intensive profiling, he located the issue: the problem wasnt in the majority Go portion of our app, but in our small Swift wrapper layer, which was slowly leaking memory. Several autoreleaseblock calls later, our team felt a wave of relief: the iOS app is now slimmer than ever before, and should stay connected as long as needed.

Android Beta As promised in our last newsletter, we’ve officially launched our Android beta! Those with a tolerance for a few bugs are welcome to join our beta on the Play Store. Bug reports are welcome via email or Github. If you’d prefer to hold out until most of the bugs have been found, you can also pre-register to be notified when the production version is ready. Welcome to our Interns At the beginning of May we welcomed our first ever class of interns students to the team. Hailing from Waterloo University, Zijie, Wendi, and Dmytro have been hard at work on several exciting new Tailscale features. Read more on our blog Community Contributions From large companies to individuals, people are continuing to explore how Tailscale can make their networks simpler. This month, we have a few new articles from the community:

For our Japanese users: 日本語を喋る人ために、@masa_iwasakiさんは Tailscale で簡単に自宅開発サーバーを実現する記事を書きました。 記事中で How Tailscale Works の便利な大筋もあります。@masa_iwasaki さん、書いてくれてありがとうございます！ @nativeclouddev wrote Scale Out Your Raspberry Pi Kubernetes Cluster to the Cloud, which, like @mrkaran_’s article last month, explores the details of running Tailscale inside Kubernetes. Complete with network diagrams like How Tailscale Works, and a feature request :)

Thanks to @masa_iwasaki, @nativeclouddev, and all the Tailscale community members writing and contributing to our mission of fixing networking once and for all.

Date: 2020-06-19

URL: https://tailscale.com/blog/2020-06-newsletter/

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