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Tailscale
Tailscale
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Tailscale

Tailscale Inc. is a software company based in Toronto, Ontario. Tailscale develops a partially open-source software-defined mesh virtual private network (VPN) and a web-based management service.[a][2][3] The company provides a zero config VPN as a service under the same name.[4][better source needed]

Key Information

Tailscale
Developer(s)Tailscale Inc.
Stable release
1.82.5[5] / April 17, 2025; 4 months ago (2025-04-17)
Repositorygithub.com/tailscale/tailscale
Operating systemMicrosoft Windows, macOS, Linux, Android, iOS, tvOS, Plan9
TypeSD-WAN, P2P, VPN, ZTNA
LicenseBSD
Websitetailscale.com

History

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Founded in 2019 by Google engineers Avery Pennarun, David Crawshaw, David Carney, and Brad Fitzpatrick,[6] the company secured funding of $12 million in a Series A round in November 2020 led by Accel with seed investors Heavybit and Uncork Capital participating.[7] In May 2022, the company secured a $100 million Series B round, led by CRV and Insight Partners, with participation from existing investors.[6][8]

The company's name is inspired from a research paper The Tail at Scale[b] published by Google.[9]

Software

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The open-source software acts in combination with the management service to establish peer-to-peer or relayed VPN communication with other clients using the WireGuard protocol.[10][11] Tailscale can open direct connection to the peer using NAT traversal techniques such as STUN or request port forwarding via UPnP IGD, NAT-PMP or PCP.[12] If the software fails to establish direct communication it falls back to using DERP (Designated Encrypted Relay for Packets) protocol relays provided by the company.[13] The IPv4 addresses given to clients are in the carrier-grade NAT reserved space. This was chosen to avoid interference with existing networks.[14] The Linux client can also send traffic to networks behind itself by disabling SNAT and routing directly to the source IPs. [15]

Supported platforms

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The Tailscale client software supports a number of operating systems and embedded software systems,[16] including:

A Kubernetes operator[19] and Docker images[20] are also available.

See also

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Notes

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  1. ^ Although Tailscale provides VPN software & services, it should not be confused to be what is commonly referred to as a VPN service, however Tailscale's software can be integrated with the Mullvad VPN service[1]
  2. ^ Dean, Jeffrey; André Barroso, Luiz. "The Tail at Scale". Google. Archived from the original on 14 December 2021. Retrieved 9 March 2021.

References

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  1. ^ Chiara Castro (2023-09-08). "Mullvad and Tailscale join forces in the name of online security". TechRadar. Retrieved 2024-12-03.
  2. ^ Rogers, Sarah (2021-09-09). "Tailscale VPN review". TechRadar. Archived from the original on 19 September 2021. Retrieved 2022-04-13.
  3. ^ Vaughan-Nichols, Steven. "Tailscale launches Wireguard-secured mesh network". ZDNet. Archived from the original on 23 February 2023. Retrieved 2022-04-13.
  4. ^ Hanselman, Scott. "Using Tailscale on Windows to network more easily with WSL2 and Visual Studio Code". www.hanselman.com. Archived from the original on 2014-08-09. Retrieved 2021-02-01.
  5. ^ "Tailscale changelog"
  6. ^ a b Kyle, Wiggers (5 May 2022). "Tailscale lands $100 million to 'transform' enterprise VPNs with mesh technology". TechCrunch. Archived from the original on 23 February 2023.
  7. ^ Dillet, Romain (10 November 2020). "Tailscale raises $12 million for its WireGuard-based corporate VPN". TechCrunch. Archived from the original on 23 February 2023. Retrieved 2021-02-01.
  8. ^ Tailscale (4 May 2022). "Tailscale raises $100M… to fix the Internet". Tailscale. Archived from the original on 6 May 2022. Retrieved 2022-05-05.
  9. ^ Security Cryptography Whatever: Tailscale with Avery Pennarun & Brad Fitzpatrick. 15 Jan 2022. Event occurs at 45m53s. Archived from the original on 23 February 2023. Retrieved 23 February 2023 – via archive.org.{{cite AV media}}: CS1 maint: bot: original URL status unknown (link)
  10. ^ Morgan, Ethel. "Tailscale". ethulhu.co.uk. Archived from the original on 23 February 2023. Retrieved 2021-02-01.
  11. ^ "What is Tailscale? · Tailscale Docs". Tailscale. Retrieved 2024-08-17.
  12. ^ "Troubleshooting device connectivity · Tailscale Docs". Tailscale. Retrieved 2024-08-17.
  13. ^ "Terminology and concepts · Tailscale Docs". Tailscale. Retrieved 2024-08-17.
  14. ^ "IP pool · Tailscale Docs". Tailscale. Retrieved 2024-08-17.
  15. ^ "Disable SNAT · Tailscale Docs". Tailscale. Retrieved 2025-03-15.
  16. ^ "Download · Tailscale". tailscale.com. Retrieved 2024-03-07.
  17. ^ Tailscale. "Access Synology NAS from anywhere". Tailscale. Retrieved 2024-03-07.
  18. ^ "QNAP". tailscale.com. Retrieved 2024-03-07.
  19. ^ Tailscale. "Kubernetes operator". Tailscale. Retrieved 2024-03-07.
  20. ^ "Contain your excitement: A deep dive into using Tailscale with Docker". tailscale.com. Retrieved 2024-03-07.
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