Celada questions

Celada answers

• Python DNS resolver and original TTL
• Does HSTS header really help against MITM attacks?
• getaddrinfo() vs NAPTR/SRV record
• Bandwidth-Delay Product
• Can socket objects be shared with Python's multiprocessing? socket.close() does not seem to be working
• how tcp stack distinguish close and shutdown?
• Difference between nslookup, host and resolveip?
• What does "$*" at the end of a shell command mean
• improving concurrent file read with ssd and mmap
• Comparing IPV4 socket(sockaddr_in) with IPV6 Socket(sockaddr_in6)