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Tailscale: VPNを構築できるサービス
- Headscale: OSSのTailscale互換認証サーバー

Tailscale: VPNを構築できるサービス †

Tailscale · Best VPN Service for Secure Networks
- アプリを機器(Win, macOS, Linux, RasPi, iOS, Android, etc)に入れると、VPNを構築できるサービス
  - Download | Tailscale
- SaaS, 個人は無料, 有料プランあり。プランによって機能や接続数が異なる
  - 2026-04: Personal(3 user, 100 device)
- ゼロコンフィグ: 自動設定で、複雑な設定が不要
- NATトラバーサル: ファイヤウォールやルーターの設定を変えずとも利用可能
- WireGuardベース: 低遅延なE2E暗号化通信
- Taildrop 機能: Tailscaleネットワーク上で自分のデバイス間でファイルをセキュアに転送

デメリット:

SaaSなので、Tailscaleアカウントの取得が必要。
SaaSなので、サービス側に障害があったら使えなくなりそう
- Tailscale Status
Tailscaleやめたい - まいの雑記帳
/etc/resolv.conf の書き換えが常に発生し、MagicDNS(100.100.100.100)を一番上に書き換える

RFC違反のDNS実装

100.64/10をハードコードで全部drop

iptablesの介入がすごく頭悪い

MTU 1280ハードコード

ACLでDenyを明示できない

SSOを強制

記事:

Headscale: OSSのTailscale互換認証サーバー †

TailScale社がユーザー認証を管理しているが、そこのOSS実装

Headscale

記事:

TailScale->HeadScaleへ移行 - Falconの思うままに

Software

Programming

Game

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