Did you know you can use systemd to turn on tmpfs for /tmp ???
I had no clue that was possible, always did it through fstab - but
systemctl is-enabled tmp.mount
That will tell you if systemd has configured /tmp to mount as tmpfs
(default in CentOS 7 is no)
systemctl enable tmp.mount
That, as you can probably guess, tells systemd to mount /tmp as tmpfs
next time the system boots.
-=-
Just thought I would pass it along in case others may benefit.
For me, I only need /tmp as tmpfs on my Bitcoin box - and then only when
generating private keys for cold storage, SSDs are often not very good
at securely deleting files. So I use tmpfs for /tmp and generate the
private keys for cold storage to a file in /tmp and then print it from
there (for storage in safe deposit box) - so that the private keys can't
be recovered from the SSD.
Yes, booting off a CD to generate and then print works too, but that's
bothersome.
Anyway just in case anyone else needs /tmp as tmpfs for anything,
thought I'd pass the tip along.
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