The free certs from https://letsencrypt.org/ do indeed work as described. I wanted to check them out for some public facing services I wanted to run. To get the certificate you run a program on a host that DNS resolves to the cert you want to get – so if “foo.example.com” resolves to 10.6.6.6, you need to install the cert generation program on 10.6.6.6, and have either 80 or 443 free (I […]
1) Limit max processes on container; unfortunately docker seems intent on me not doing docker stupid tricks, so this is actually a bit of a pain on some systems… but if you figure out/etc/security/limits.conf, or can use prlimit (or write your own; use RLIMIT_NPROC instead of RLIMIT_NOFILE), you can do “prlimit –pid 666 –nproc=3:3” to limit the processes on the system to a very small number. Say… only what you’re running inside […]