Questions

1. Is Metasploit Framework free for use?

2. Can I encrypt my payloads so that they can evade anti-virus software?

3. I'm using MySQL as my pen testing backend. Can I integrate MySQL or any other Non-PostgreSQL database with Metasploit?

4. I have multiple systems where Metasploit Framework is installed. Can I centralize the database for each Metasploit instance?