Oracle Database 21c : Add Oracle Net Listener2022/02/16 |
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Add Oracle Net Listener that is the network service on Oracle.
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| [1] | Login as user [oracle] and input a command [netca] like follows. |
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| [2] | Check a box [Listener Configuration] and go next. |
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| [3] | Go to next. |
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| [4] | Set Listner's name. Set any name you like. |
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| [5] | This example goes next with keeping default [TCP]. |
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| [6] | Set a port. This example goes next with keeping default. |
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| [7] | If you'd like to create more Listeners, Answer [Yes]. This example selects [No]. |
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| [8] | Configuration completed. |
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| [9] | After creating Listener, [tnslsnr] listens on the port you configured like follows. |
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[oracle@dlp ~]$ ss -napt | grep 1521
LISTEN 0 128 *:1521 *:* users:(("tnslsnr",pid=11694,fd=9))
TIME-WAIT 0 0 [::ffff:10.0.0.30]:1521 [::ffff:10.0.0.30]:60734
[oracle@dlp ~]$ tnsping localhost TNS Ping Utility for Linux: Version 21.0.0.0.0 - Production on 15-FEB-2022 21:21:02 Copyright (c) 1997, 2021, Oracle. All rights reserved. Used parameter files: Used HOSTNAME adapter to resolve the alias Attempting to contact (DESCRIPTION=(CONNECT_DATA=(SERVICE_NAME=))(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521))) OK (10 msec) |
| [10] | If Firewalld is running, allow listener port. |
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[root@dlp ~]# firewall-cmd --add-port=1521/tcp success [root@dlp ~]# firewall-cmd --runtime-to-permanent success |
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