User`s guide
Configuring the Network
9-6 Oracle Database Installation and Administration Guide
The value of each of these parameters can be either a list of algorithm names in
parenthesis separated by commas or a single algorithm name.
The default crypto checksum type is
MD5, while the encryption defaults to all the
algorithms.
Type Values
Crypto checksum types
SHA1
,
MD5
Encryption types
AES256
,
RC4_256
,
AES192
,
3DES168
,
AES128
,
RC4_128
,
3DES112
,
RC4_56
,
DES
,
RC4_40
,
DES40
Use the parameter
SQLNET.CRYPTO_SEED
to specify the characters used when
generating cryptographic keys. The more random the characters are, the stronger the
keys are. The string should be 10-70 random characters. This is required when
encryption or checksumming is turned on.
SQLNET.CRYPTO_SEED="qwertyuiopasdfghjkl;zxcvbnm,.s1"
For more information, refer to Oracle Database Net Services Administrator's Guide, Oracle
Database Net Services Reference, and Oracle Database Advanced Security Administrator's
Guide.
Example:
SQLNET.CRYPTO_CHECKSUM_CLIENT=required
SQLNET.CRYPTO_CHECKSUM_TYPES_CLIENT=(md5)
SQLNET.ENCRYPTION_CLIENT=accepted
SQLNET.ENCRYPTION_TYPES_CLIENT=(aes192,3des168,rc4_128)
SQLNET.CRYPTO_SEED="qwertyuiopasdfghjkl;zxcvbnm,.s1"
9.4 Configuring the Network
Although, you can use the Easy Connect Naming Method to connect to the database, it
is recommended to configure clients for the use of service names that are easy to
remember aliases for database addresses and match the address preconfigured in each
system's
LISTENER.ORA
file. The client uses these addresses to connect to the network
listener, which routes the connection request to the required service. During a
connection, a client passes the service name to which it wants to connect.
LISTENER.ORA
file identifies and controls the behavior of the network listener that
listens for services on the system. This file includes network listener descriptors and
addresses, services the listener is listening for, and various control parameters.
Client configuration is accomplished by creating a list of net service names with
addr
esses of network destinations through the local naming parameter file
TNSNAMES.ORA
or an LDAP compliant directory server. Clients and database servers
(that are clients of other database servers) use the net service name when making a
connection.
■ Using Easy Connect Naming Method
■ Using the Local Naming Method
■ Using the Directory Naming Method
■ Configuration on the Server
■ Configuration on the Client