Master: 10.0.0.1
Slave1: 10.0.0.2
Slave2: 10.0.0.3 (this is the new one I have created today)

wal_level = hot_standby
max_wal_senders = 3

hot_standby = on

standby_mode = on
primary_conninfo = 'host=10.0.0.2 port=5432 user=repuser password=password'

sudo -u postgres pg_basebackup -h 10.0.0.2 -D /var/lib/postgresql/9.2/data/ -U repuser -v -P --xlog-method=stream

[]#  ps aux | grep postgres
postgres: wal sender process repuser 10.0.0.3 (33476) streaming 3B21/21934000


postgres=# select application_name, state, sync_priority, sync_state from pg_stat_replication;
 application_name |   state   | sync_priority | sync_state
------------------+-----------+---------------+------------
 walreceiver      | streaming |             0 | async
(1 row)

[]# ps aux | grep postgres
0:00 /usr/pgsql-9.2/bin/postmaster -p 5432 -D /var/lib/postgresql/9.2/data/
0:00 postgres: logger process
1:18 postgres: startup process   recovering 0000000200003B22000000CF
0:00 postgres: checkpointer process
0:04 postgres: writer process
0:00 postgres: stats collector process
0:34 postgres: wal receiver process   streaming 3B22/CF800000
0:00 grep postgres

[]# psql -U postgres
psql: could not connect to server: No such file or directory
        Is the server running locally and accepting
        connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"?