Pharaoh2

The idea of an automated coach is quite interesting, however it would be a very involved effort to match the level of a human mentor that some of the expensive websites provide. Its nice that it suggests problems I should be solving and give hints based on time so I don't get stuck.

Definitely something I will use the next time I have to prepare for an interview. Seems like a much better source than geeks4geeks.

Yes, Partly (Doesn't have the multi-axis part) and Yes.

The firewalls you mentioned were NAT/Enterprise level. They do not generally have absolute control of what programs are running on one of their internal computers. May be that port left open is used by a C&C client installed on one of the user's computer inside LAN, hereby possibly compromising the whole internal network. There is a reason why DMZs exist.

Ping of death has happened before. You do not serve any purpose by opening ports that you do not intend to use. Closing all unneeded port is called minimizing attack surface.

Ports may not be inherently secure or insecure, but the history of their usage give them bias towards likely being secure or insecure. Chrome does the right thing by blocking these ports as an overwhelmingly large percentage of their users will probably hit this port under "insecure" situations. Those who need to use these ports can and will find alternate ways to do it.

Is the scrolling lag because of MeteorJS or is that the dev's fault?

Oh no no no. If you are handling something as important as the Linux kernel, you will absolutely want traceability over anything as trivial as clean history. You will impose signed commits and signed merges only... none of these FF stuff. If you want clean history on top of that, you will enforce that on original pull request not after the fact.

Quite a few being... 8.

Are you sure it will be probably less than 1 order of magnitude? Unless there is some restriction that limit the plane of the orbit around a star with relation to the galaxy, which is unlikely...

Assume the plane needs to be within 1 degree from the line joining the star and kepler. I would guess it probably less. It would be a function of size of the planet, size of the star, radius of the orbit and distance of star from kepler.

That would give about 179 planes that we cannot see, which is two orders of magnitude, but the probability calculation won't be that simple.