CentOS 8
Sponsored Link

Oracle Database 19c : Add Oracle Net Listener2020/07/15

Add Oracle Net Listener that is the network service on Oracle.
[1] Login with the [oracle] user and input a command [netca] like follows.
[oracle@dlp ~]$ netca

[2] Check a box [Listener Configuration] and go next.
[3] Go to next.
[4] Set Listner's name. Set any name you like.
[5] This example goes next with keeping default [TCP].
[6] Set a port. This example goes next with keeping default.
[7] If you'd like to create more Listeners, Answer [Yes]. This example selects [No].
[8] Configuration completed.
[9] After creating Listener, [tnslsnr] listens on the port you configured like follows.
[oracle@dlp ~]$
ss -napt | grep 1521

TIME-WAIT  0       0         
LISTEN     0       128                       *:1521                     *:*      users:(("tnslsnr",pid=11061,fd=8))
TIME-WAIT  0       0        [::ffff:]:1521    [::ffff:]:59058

[oracle@dlp ~]$
tnsping localhost

TNS Ping Utility for Linux: Version - Production on 14-JUL-2020 21:43:19

Copyright (c) 1997, 2019, Oracle.  All rights reserved.

Used parameter files:

Used HOSTNAME adapter to resolve the alias
OK (0 msec)
[10] If Firewalld is running, allow listener port.
[root@dlp ~]#
firewall-cmd --add-port=1521/tcp --permanent

[root@dlp ~]#
firewall-cmd --reload

Matched Content