Since ESXi 5.5 is an older "End of Life" product, historical repositories are more likely to contain these keys than current official documentation. Official & Safer Alternatives
Deliverables to implement quickly (minimal viable) esxi 55 license key github better
Before using a key from a public GitHub repository, keep these factors in mind: Since ESXi 5
Since you want something "better" than just a random key, consider these three legitimate paths: I can generate:
If you want, I can generate:
