Call now: 252-767-6166  
Oracle Training Oracle Support Development Oracle Apps

 
 Home
 E-mail Us
 Oracle Articles
New Oracle Articles


 Oracle Training
 Oracle Tips

 Oracle Forum
 Class Catalog


 Remote DBA
 Oracle Tuning
 Emergency 911
 RAC Support
 Apps Support
 Analysis
 Design
 Implementation
 Oracle Support


 SQL Tuning
 Security

 Oracle UNIX
 Oracle Linux
 Monitoring
 Remote s
upport
 Remote plans
 Remote
services
 Application Server

 Applications
 Oracle Forms
 Oracle Portal
 App Upgrades
 SQL Server
 Oracle Concepts
 Software Support

 Remote S
upport  
 Development  

 Implementation


 Consulting Staff
 Consulting Prices
 Help Wanted!

 


 Oracle Posters
 Oracle Books

 Oracle Scripts
 Ion
 Excel-DB  

Don Burleson Blog 


 

 

 


 

 

 
 

Create sqlnet.ora

Expert Oracle Database Tips by Donald BurlesonDecember 10, 2015

Create sqlnet.ora

Question:  I've been told that I need to modify some settings in my sqlnet.ora file, but I cannot find a sqlnet.ora file on my system.  Isn't the sqlnet.ora file created during the Oracle install?  If now, how do I create the sqlnet.ora file?  Once created, how do you edit the sqlnet.ora file?

Answer:  The sqlnet.ora file is not necessarily created during the Oracle install.  In fact, many Oracle networking products can run without the sqlnet.ora file because they use the default options.  The sqlnet.ora file is the profile configuration file, and it resides on the client machines and the database server.

The sqlnet.ora file is created by running the Network Configuration Assistant (NETCA).  The sqlnet.ora is a text file that contains basic configuration details used by SQL*Net.  The sqlnet.ora file is normally found in the ORACLE_HOME/network/admin directory on Windows systems.  For UNIX systems, the sqlnet.ora is located by default in $ORACLE_HOME/network/admin

If you have run NETCA and cannot locate the sqlnet.ora file, check to see if the tns_admin  parameter has been set to specify a different directory.  If you have not run NETCA, do so to create the sqlnet.ora file.

A sqlnet.ora file can also be created/edited in a text editor on your PC and copied or FTP'd to the appropriate location.

A sample sqlnet.ora file for newer Oracle systems might look like this:

names.directory_path = (LDAP, TNSNAMES, HOSTNAME)
names.default_domain = WORLD
trace_level_client = OFF
sqlnet.expire_time = 30

A sample sqlnet.ora file for older Oracle systems might look like this:

automatic_ipc = ON
trace_level_client = OFF
sqlnet.expire_time = 0   
sqlnet.authentication_services = (ALL)
names.directory_lookup = (TNSNAMES,ONAMES)
names.default_domain = world
name.default_zone = world

Where the following sqlnet.ora parameters are included:

  • automatic_ipc:  Useful on database servers, SQL*Net will bypass the network layer and make direction connections to the database when set to ON.  For PC's, this should be set to OFF.  This parameter is not used in recent releases of Oracle and is unsupported.
  • names.default_domain:  If the net service name does not have a domain specified, this parameter value is appended to the service name.
  • names.default_zone:  This is a variant of the names.default.domain parameter.  It is not used in recent releases of Oracle and is desupported.
  • names_directory_path:  This parameter specifies the order of naming methods used when a client attempts a connection to a database. Possible values include: LDAP; TNSNAMES; HOSTNAME; ONAMES; and EZCONNECT.
  • sqlnet.expire_time:  This parameter, set on the server, enables dead connection detection.  After the specified time interval, expressed in minutes, the server checks to see if the client is still connected. If the client is not still connected, the server process exits.
  • sqlnet.authentication_services: This parameter is used to enable one or more authentication services.  There is no default setting, so if authentication has been installed, it this parameter should be set to either NONE for no authentication methods or ALL for all authentication methods.
  • trace_level_client:  This parameter enables tracing unless it is set to OFF or 0, which is the default.  Use the following values to set tracing levels: USER (4); ADMIN (10); and SUPPORT (16).

Additional sqlnet.ora parameters for Oracle 11gR2 include:

  • BEQUEATH_DETACH
  • DEFAULT_SDU_SIZE
  • DISABLE_OOB
  • NAMES.LDAP_AUTHENTICATE_BIND
  • NAMES.LDAP_PERSISTENT_SESSION
  • RECV_BUF_SIZE
  • SDP.PF_INET_SDP
  • SEC_USER_AUDIT_ACTION_BANNER
  • SEC_USER_UNAUTHORIZED_ACCESS_BANNER
  • SEND_BUF_SIZE
  • SQLNET.ALLOWED_LOGON_VERSION
  • SQLNET.AUTHENTICATION_KERBEROS5_SERVICE
  • SQLNET.CLIENT_REGISTRATION
  • SQLNET.CRYPTO_CHECKSUM_CLIENT
  • SQLNET.CRYPTO_CHECKSUM_SERVER
  • SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT
  • SQLNET.CRYPTO_CHECKSUM_TYPES_SERVER
  • SQLNET.ENCRYPTION_CLIENT
  • SQLNET.ENCRYPTION_SERVER
  • SQLNET.ENCRYPTION_TYPES_CLIENT
  • SQLNET.ENCRYPTION_TYPES_SERVER
  • SQLNET.INBOUND_CONNECT_TIMEOUT
  • SQLNET.KERBEROS5_CC_NAME
  • SQLNET.KERBEROS5_CLOCKSKEW
  • SQLNET.KERBEROS5_CONF
  • SQLNET.KERBEROS5_KEYTAB
  • SQLNET.KERBEROS5_REALMS
  • SQLNET.OUTBOUND_CONNECT_TIMEOUT
  • SQLNET.RADIUS_ALTERNATE
  • SQLNET.RADIUS_ALTERNATE_PORT
  • SQLNET.RADIUS_ALTERNATE_RETRIES
  • SQLNET.RADIUS_AUTHENTICATION
  • SQLNET.RADIUS_AUTHENTICATION_INTERFACE
  • SQLNET.RADIUS_AUTHENTICATION_PORT
  • SQLNET.RADIUS_AUTHENTICATION_RETRIES
  • SQLNET.RADIUS_AUTHENTICATION_TIMEOUT
  • SQLNET.RADIUS_CHALLENGE_RESPONSE
  • SQLNET.RADIUS_SECRET
  • SQLNET.RADIUS_SEND_ACCOUNTING
  • SQLNET.RECV_TIMEOUT
  • SQLNET.SEND_TIMEOUT
  • SSL_CERT_REVOCATION
  • SSL_CERT_FILE
  • SSL_CERT_PATH
  • SSL_CIPHER_SUITES
  • SSL_CLIENT_AUTHENTICATION
  • SSL_SERVER_DN_MATCH
  • SSL_VERSION
  • TCP.CONNECT_TIMEOUT
  • TCP.EXCLUDED_NODES
  • TCP.INVITED_NODES
  • TCP.VALIDNODE_CHECKING
  • TCP.NODELAY
  • TNSPING.TRACE_DIRECTORY
  • TNSPING.TRACE_LEVEL
  • USE_CMAN
  • USE_DEDICATED_SERVER
  • WALLET_LOCATION
  • WALLET_OVERRIDE

Check these other pages for information on sqlnet.ora.

Check these pages for more information on creating and editing listener.ora and tnsnames.ora.

 
Get the Complete
Oracle SQL Tuning Information 

The landmark book "Advanced Oracle SQL Tuning  The Definitive Reference"  is filled with valuable information on Oracle SQL Tuning. This book includes scripts and tools to hypercharge Oracle 11g performance and you can buy it for 30% off directly from the publisher.

 

 

Burleson is the American Team

Note: This Oracle documentation was created as a support and Oracle training reference for use by our DBA performance tuning consulting professionals.  Feel free to ask questions on our Oracle forum.

Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications.

Errata?  Oracle technology is changing and we strive to update our BC Oracle support information.  If you find an error or have a suggestion for improving our content, we would appreciate your feedback.  Just  e-mail:  and include the URL for the page.


                    









Burleson Consulting

The Oracle of Database Support

Oracle Performance Tuning

Remote DBA Services


 

Copyright © 1996 -  2016

All rights reserved by Burleson

Oracle ® is the registered trademark of Oracle Corporation.


 

��  
 
 
Oracle Training at Sea
 
 
 
 
oracle dba poster
 

 
Follow us on Twitter 
 
Oracle performance tuning software 
 
Oracle Linux poster