check it out

System parameter file is /export/home0/oradata/d01/app/oravis/product/805/network/admin/listener.ora
Log messages written to /export/home0/oradata/d01/app/oravis/product/805/network/log/listener.log

Listening on: (ADDRESS=(PROTOCOL=ipc)(DEV=7)(KEY=PNPKEY))
Listening on: (ADDRESS=(PROTOCOL=tcp)(DEV=13)(HOST=10.21.0.21)(PORT=1521))
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
17-MAR-03 22:33:25 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=muso001)(USER=oravis))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LIST ENER)(VER
SION=134238208)) * status * 0

TNSLSNR for Solaris: Version 8.0.5.0.0 - Production on 17-MAR-03 22:39:50

(c) Copyright 1997 Oracle Corporation. All rights reserved.

System parameter file is /export/home0/oradata/d01/app/oravis/product/805/network/admin/listener.ora
Log messages written to /export/home0/oradata/d01/app/oravis/product/805/network/log/listener.log

Listening on: (ADDRESS=(PROTOCOL=ipc)(DEV=8)(KEY=PNPKEY))
Listening on: (ADDRESS=(PROTOCOL=tcp)(DEV=13)(HOST=10.21.0.21)(PORT=1521))
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
17-MAR-03 22:39:50 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=muso001)(USER=oravis))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LIST ENER)(VER
SION=134238208)) * status * 0
17-MAR-03 22:56:58 * ping * 0
17-MAR-03 23:05:34 * (CONNECT_DATA=(SERVICE_NAME=vis)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.7\bin\jrew.exe)(HOST=VAYU)(USER
=administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.0.65)(PORT=3515)) * establish * vis * 12514
TNS-12514: Message 12514 not found; product=NETWORK; facility=TNS

17-MAR-03 23:06:13 * ping * 0
17-MAR-03 23:08:24 * (CONNECT_DATA=(SERVICE_NAME=vis)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.7\bin\jrew.exe)(HOST=VAYU)(USER
=administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.0.65)(PORT=3525)) * establish * vis * 12514
TNS-12514: Message 12514 not found; product=NETWORK; facility=TNS

17-MAR-03 23:08:36 * (CONNECT_DATA=(SERVICE_NAME=vis)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.7\bin\jrew.exe)(HOST=VAYU)(USER
=administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.0.65)(PORT=3527)) * establish * vis * 12514
TNS-12514: Message 12514 not found; product=NETWORK; facility=TNS

17-MAR-03 23:09:09 * (CONNECT_DATA=(SERVICE_NAME=vis)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.7\bin\jrew.exe)(HOST=VAYU)(USER
=administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.0.65)(PORT=3529)) * establish * vis * 12514
TNS-12514: Message 12514 not found; product=NETWORK; facility=TNS

19-MAR-03 16:21:27 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=muso001)(USER=oravis))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LIST ENER)(VER
SION=134238208)) * status * 0
19-MAR-03 16:22:07 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=muso001)(USER=oravis))(COMMAND=services)(ARGUMENTS=64)(SERVICE=LI STENER)(V
ERSION=134238208)) * services * 0
19-MAR-03 16:22:22 * (CONNECT_DATA=(CID=(PROGRAM=)(HOST=muso001)(USER=oravis))(COMMAND=status)(ARGUMENTS=64)(SERVICE=LIST ENER)(VER
SION=134238208)) * status * 0
24-MAR-03 15:49:51 * 12502
TNS-12502: TNS:listener received no CONNECT_DATA from client
09-MAY-03 20:14:20 * (CONNECT_DATA=(SERVICE_NAME=vis)(CID=(PROGRAM=C:\Program Files\Oracle\jre\1.1.8\bin\jrew.exe)(HOST=HYPA-MUMWS
)(USER=Administrator))) * (ADDRESS=(PROTOCOL=tcp)(HOST=10.21.0.91)(PORT=1079)) * establish * vis * 12514
TNS-12514: Message 12514 not found; product=NETWORK; facility=TNS