documentation: must run as root

[vielmetti]

trafficstars

If you get permission denied when running this, note that it binds to a low port, and thus on most systems should run as root.

Eds-MacBook-Pro:~ ed$ go/bin/ssl-tester 
2019/02/02 01:29:56 listen tcp :443: bind: permission denied
Eds-MacBook-Pro:~ ed$ sudo go/bin/ssl-tester 
Password:
2019/02/02 01:30:10 open /etc/ssl-tester/fullchain.pem: no such file or directory

[chris-short]

What would the preferred behavior be? Force users to run on port 443 or pick a random high port number (I'll look at IANA first)?

[vielmetti]

I could see a ssl-tester --port 10433 approach - define the port number at run time - that would allow you to test without clobbering an existing service on an existing port, or needing to necessarily be root.