FQDN for replication connection in pg_hba.conf

[rammohan ganapavarapu <rammohanganap@xxxxxxxxx>]

Can we use fqdn in  pg_hba.conf for replication connections?

# TYPE  DATABASE        USER            ADDRESS                 METHOD

# "local" is for Unix domain socket connections only

local   all             all                                     trust

# IPv4 local connections:

host    all             all             0.0.0.0/0            md5

host     replication     postgres       slave.example.com          trust

I am getting below error in slave 

2017-10-10 21:34:52 UTC [313]: [1-1] user= db= host= FATAL:  could not connect to the primary server: FATAL:  no pg_hba.conf entry for replication connection from host "10.10.10.10", user "postgres", SSL off where "10.10.10.10" is my slave (slave.example.com)  ip.

Thanks,

Ram