- Localhost is 127.0.0.1
- A TCP SYN will also always result in a SYN-ACK
- Ok, a SYN-ACK or a RST
- Ok, ok, an out-going TCP packet will always result in a TCP response
https://support.f5.com/kb/en-us/solutions/public/13000/200/s...
https://support.f5.com/kb/en-us/solutions/public/13000/200/s...