Oracle Net
Diagnose Oracle Net and RAC Interconnect Routing with netstat -r
May 12, 2026 / · 7 min read · Oracle Database Unix Commands Oracle DBA Oracle Net RAC netstat Networking Routing Diagnostics ·Diagnose Oracle Net and RAC Interconnect Routing with netstat -r Purpose Oracle Net connections and Oracle RAC private interconnect traffic both depend on correct IP routing. When an Oracle client cannot connect to the listener, when RAC Cache Fusion or heartbeat traffic is routing over the wrong interface, or when …
Read MoreSample tnsnames.ora Dedicated Server Entry (with ASM)
May 1, 2026 / · 5 min read · Oracle Database SQL*Net tnsnames.ora Oracle Net Oracle DBA Database Connectivity ASM TNS ·Sample tnsnames.ora Dedicated Server Entry (with ASM) Purpose The tnsnames.ora file is the client-side address book for Oracle Net. Each entry maps a short alias (SCR9) to a full network address — protocol, host, port, and target service. Without a working tnsnames.ora entry, sqlplus, rman, and any application using …
Read MoreSample listener.ora with Static SID_LIST and Extproc
Apr 30, 2026 / · 6 min read · Oracle Database SQL*Net listener.ora Oracle Net Oracle DBA Database Connectivity extproc Listener ·Sample listener.ora with Static SID_LIST and Extproc Purpose The listener.ora file is the server-side configuration for the Oracle Net listener — the process that accepts incoming client connections and hands them off to a database server process. The sample below — taken straight from the shutdownabort.com DBA Quick …
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