question regarding tnsnames.ora on linux

Hi,

Can I have 2 entries int he tnsnames.ora for the same service name? (In other words in the following tnsnames.ora after the horizontal line like the last entry,  can I have an additional entry as follows (what i want to add is before the horizontal line) So basically i want to have a single host name for multiple service names and the host name is engt02. How do I achieve that?

ENTG02 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = entg02)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = new_servicename)
    )
  )
_________________________________________________________________________

ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost.localdomain)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (CONNECT_DATA =
      (SID = PLSExtProc)
      (PRESENTATION = RO)
    )
  )

ENTG02 =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = entg02)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )
anup001Asked:
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fluglashConnect With a Mentor Commented:
ENTG02 = <---- change this for something else...
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = entg02)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = new_servicename)
    )
  )
0
 
anup001Author Commented:
Is that entry(ENTG02) not required to e same as host name that is lower case enth02?
0
 
Shaju KumbalathDeputy General Manager - ITCommented:
the tnsalias can not be duplicated
0
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fluglashCommented:
this entry required, but NetServiceName must be unique

new_ENTG02 = <---- change this for something else...
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = entg02)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = new_servicename)
    )
  )
0
 
anup001Author Commented:
do i need to restart anyything after modifyin tnsnames.ora in linux?
0
 
KICUSekConnect With a Mentor Commented:
If You are starting new connectin, no restart needed.
0
 
fluglashCommented:
no, you don`t need to reboot machine
0
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