When we receive a DNS query for a DNS resource in Firezone, we take the next available 4 IPs from the CG-NAT range and assign them to the domain name. For example, if `example.com` is a DNS resource and it is the first resource being queried in a Firezone session, we will assigned the IPs `100.96.0.1` - `100.96.0.4` to it. If the user now restarts Firezone or signs out and back in, this state is lost and we assign those same IPs to the next DNS query coming in. This creates a problem for applications that do not re-query DNS very often or never. They expect these IPs to not change. Restarting software or signing out and back in is a common approach to fixing software problems, yet in this specific case, doing so may create even more problems for the user. To mitigate this, `ClientState` introduce a new event `DnsRecordsChanged` that gets emitted to the event-loop every time we assign new records. The event-loop then caches this in memory and reuses it in case a new session is initiated. The records are only stored in-memory and not on disk. Most likely, the tunnel process will be alive for the entire OS session. To verify this behaviour, we add a new `RestartClient` transition to our proptests. In the proptests, we already keep a mapping of all DNS names we ever resolved, including DNS resources. When generating IP traffic, we sample from this list of IPs and then expect the packet to be routed. By replacing the `ClientState` as part of this transition and re-seeding it with the previously exported DNS records, we can verify that packets to IPs resolved from a previous session still get successfully routed to the resource. Related: #5498
This is a Next.js project bootstrapped with
create-next-app.
Getting Started
First, install dependencies and populate the timestamps.json file:
pnpm setup
Next, create files .env.local and .env.development.local in this directory.
Put this in .env.local:
NEXT_PUBLIC_MIXPANEL_TOKEN=""
NEXT_PUBLIC_GOOGLE_ANALYTICS_ID=""
NEXT_PUBLIC_LINKEDIN_PARTNER_ID=""
FIREZONE_DEPLOYED_SHA=""
And this in .env.development.local:
# Created by Vercel CLI
EDGE_CONFIG=""
FIREZONE_DEPLOYED_SHA=""
SITE_URL=""
VERCEL_DEEP_CLONE=""
After that, make sure to contact the team for their values.
Then, run the development server:
npm run dev
# or
yarn dev
# or
pnpm dev
Open http://localhost:3000 with your browser to see the result.
You can start editing the page by modifying app/page.tsx. The page
auto-updates as you edit the file.
Linting
This project uses Prettier to format code and ensure a consistent style. Use the .prettierrc.json in the root of this repo to configure your editor.
Learn More
To learn more about Next.js, take a look at the following resources:
- Next.js Documentation - learn about Next.js features and API.
- Learn Next.js - an interactive Next.js tutorial.
You can check out the Next.js GitHub repository - your feedback and contributions are welcome!
Deploy on Vercel
The easiest way to deploy your Next.js app is to use the Vercel Platform from the creators of Next.js.
Check out our Next.js deployment documentation for more details.