- Specify fallback ICMP IP addresses
- Defaults changed from 1.1.1.1 to 1.1.1.1,8.8.8.8
- Small periodic check cycles through addresses as it fails and moves to retry
- Specify fallback addresses
- Defaults changed from cloudflare:443 to cloudflare:443,github.com:443
- Startup check runs a parallel dial to each of the addresses specified with a global 6s timeout
- Full periodic check cycles through addresses as it fails and moves to retry
- You should really leave it to `on` ⚠️
- Turn it to `off` if you have trust issues with the healthcheck. Don't then report issues if the connection is dead though.
- run small check every 60s, from 15s
- small check (icmp/dns) initial timeout from 3s to 10s
- small check (icmp/dns) timeout increase from 1s to 10s
- full check initial timeout increased from 10s to 20s
- full check extra timeout increase from 3s to 10s
- New option: `HEALTH_ICMP_TARGET_IP` defaults to `0.0.0.0` meaning use the VPN server public IP address.
- Options removed: `HEALTH_VPN_INITIAL_DURATION` and `HEALTH_VPN_ADDITIONAL_DURATION` - times and retries are handpicked and hardcoded.
- Less aggressive checks and less false positive detection
- Healthcheck timeout is no longer fixed to 3 seconds
- Healthcheck timeout increases from 2s to 4s, 6s, 8s, 10s
- No 1 second wait time between check retries after failure
- VPN internal restart may be delayed by a maximum of 10 seconds
- Update URLs logged by program
- Update README.md links
- Update contributing guide link
- Update issue templates links
- Replace Wiki issue template by link to Gluetun Wiki repository issue creation
- Set program announcement about Github wiki new location
- Fix Slowloris attacks on HTTP servers
- Force set default of 5 minutes for pprof read timeout
- Change `ShutdownTimeout` to time.Duration since it cannot be set to 0
- `HEALTH_TARGET_ADDRESS` to replace `HEALTH_ADDRESS_TO_PING`
- Remove `github.com/go-ping/ping` dependency
- Dial TCP the target address, appending `:443` if port is not set
- Better settings tree structure logged using `qdm12/gotree`
- Read settings from environment variables, then files, then secret files
- Settings methods to default them, merge them and override them
- `DNS_PLAINTEXT_ADDRESS` default changed to `127.0.0.1` to use DoT. Warning added if set to something else.
- `HTTPPROXY_LISTENING_ADDRESS` instead of `HTTPPROXY_PORT` (with retro-compatibility)
- Defaults to `1.1.1.1`
- Add more Ping integration tests with different addresses
- Add unit test pinging 127.0.0.1
- Add comment explaining why we need to use ICMP instead of UDP
- `HEALTH_OPENVPN_DURATION_INITIAL` renamed to `HEALTH_VPN_DURATION_INITIAL` with retro-compatiblity
- `HEALTH_OPENVPN_DURATION_ADDITION` renamed to `HEALTH_VPN_DURATION_ADDITION` with retro-compatiblity
