Stanislas 8375af5452 feat: add configurable MTU support (#1417) ...

## Summary
- Add `--mtu <size>` CLI option to configure tunnel MTU (valid range:
576-65535)
- Add interactive prompt with user-friendly explanation for
non-technical users
- Write `tun-mtu` to server.conf and client template when custom value
is set
- OpenVPN auto-calculates MSSFIX based on the MTU value (no separate
option needed)

## Use cases
- PPPoE connections (typically need MTU ~1492)
- Mobile/cellular networks with variable MTU
- Networks with connectivity issues due to fragmentation

## Usage
```bash
# CLI mode
./openvpn-install.sh install --mtu 1400

# Interactive mode prompts with explanation:
# "MTU controls the maximum packet size. Lower values can help
#  with connectivity issues on some networks (e.g., PPPoE, mobile)."
```

Close https://github.com/angristan/openvpn-install/pull/1300

Co-authored-by: Fabian Druschke <fdruschke@outlook.com>

2025-12-15 10:53:15 +01:00

..

client-entrypoint.sh

feat: add configurable VPN subnet (#1394)

2025-12-14 10:54:52 +01:00

Dockerfile.client

Refactor Unbound setup and add E2E tests (#1340)

2025-12-11 13:14:56 +01:00

Dockerfile.server

feat: add CLI interface with subcommands (#1398)

2025-12-14 22:08:44 +01:00

server-entrypoint.sh

feat: add configurable MTU support (#1417)

2025-12-15 10:53:15 +01:00

validate-output.sh

Add structured logging system with color-coded output and file logging (#1321)

2025-12-09 15:52:37 +01:00