hexware/fastapi-dls
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FAQ.md

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FAQ.md Normal file
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# FAQ
## `Failed to acquire license from <ip> (Info: <license> - Error: The allowed time to process response has expired)`
- Did your timezone settings are correct on fastapi-dls **and your guest**?
- Did you download the client-token more than an hour ago?
Please download a new client-token. The guest have to register within an hour after client-token was created.
## `jose.exceptions.JWTError: Signature verification failed.`
- Did you recreated `instance.public.pem` / `instance.private.pem`?
Then you have to download a **new** client-token on each of your guests.

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README.md
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@ -176,6 +176,7 @@ Successful tested with:
- Ubuntu 22.10 (Kinetic Kudu) - Ubuntu 22.10 (Kinetic Kudu)
Not working with: Not working with:
- Debian 11 (Bullseye) and lower (missing `python-jose` dependency) - Debian 11 (Bullseye) and lower (missing `python-jose` dependency)
- Ubuntu 22.04 (Jammy Jellyfish) (not supported as for 15.01.2023 due to [fastapi - uvicorn version missmatch](https://bugs.launchpad.net/ubuntu/+source/fastapi/+bug/1970557)) - Ubuntu 22.04 (Jammy Jellyfish) (not supported as for 15.01.2023 due to [fastapi - uvicorn version missmatch](https://bugs.launchpad.net/ubuntu/+source/fastapi/+bug/1970557))
@ -249,6 +250,16 @@ After first success you have to replace `--issue` with `--renew`.
every 4.8 hours. If network connectivity is lost, the loss of connectivity is detected during license renewal and the every 4.8 hours. If network connectivity is lost, the loss of connectivity is detected during license renewal and the
client has 19.2 hours in which to re-establish connectivity before its license expires. client has 19.2 hours in which to re-establish connectivity before its license expires.
```python
from datetime import timedelta
LEASE_RENEWAL_PERIOD=0.2 # 20%
delta = timedelta(days=1)
renew = delta.total_seconds() * LEASE_RENEWAL_PERIOD
renew = timedelta(seconds=renew)
expires = delta - renew # 19.2
```
\*2 Always use `https`, since guest-drivers only support secure connections! \*2 Always use `https`, since guest-drivers only support secure connections!
\*3 If you recreate instance keys you need to **recreate client-token for each guest**! \*3 If you recreate instance keys you need to **recreate client-token for each guest**!