Determine basic client connectivity

Verify TCP/IP connectivity if you are using TCP/IP:

  • Can the server be reached using the ping utility?

  • If the tnsnames.ora file uses logical service names resolved by a DNS server, verify that the DNS server is properly resolving the name by using the logical name in the ping.

  • If the logical name is not resolved by a DNS server, verify that the logical name is in the hosts file on the client.

  • If the logical name cannot be resolved, try using the server’s IP address in tnsnames.ora.

Verify IPX/SPX connectivity if you are using IPX/SPX or Novell networking:

  • Can you perform a NetWare login to a Novell server on the network?

Verify named pipes connectivity if you are using named pipes in a Windows 95/98/NT environment:

  • Using the Network Neighborhood icon, can you see other nodes on the local network?

Verify SQL*Net operation on the client:

  • Is SQL*Net or Net8 installed on the client?

  • Is the correct protocol adapter installed on the client?

  • Is the correct tnsnames.ora file installed on the client, in the correct directory?

  • Is the correct sqlnet.ora file installed on the client, in the correct directory?

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