[Info-vax] Unix equivalent of a mailbox device ?

[JF Mezei]

Say on VMS I have a background process that created a mailbox with a
systen-wide logical pointing to it. Users can use DCl to write a message
to that mailbox which causes the detached process to do certain things
with the received daya. (say the daya is anywhere between a couple of
bytes to 110 bytes).


When moving to Unix, what are the equivalent frameworks that one can use?

>From what I have read, "signals" just send a number to a process. Correct ?

Do "pipes" work between processes ? How would one process find out about
another process' available pipe ? What are the unix "pipe" equivalents
to the SYS$CREMBX, SYS$ASSIGN, SYS$QIO to interact with another
process's pipe ?

Or is the only way to exchange data via IP ?