Linux Oracle Client ●

Mandate TLS 1.2+ via sqlnet.ora :

SQLNET.SEND_TIMEOUT = 30 SQLNET.RECV_TIMEOUT = 30 SQLNET.INBOUND_CONNECT_TIMEOUT = 60 linux oracle client

| Symptom | Root Cause | Resolution | |---------|------------|------------| | ORA-12170: TNS timeout | Firewall blocking port 1521 | Verify iptables rules: iptables -L -n | | ORA-12545: Host not found | DNS resolution failure | Use IP addresses in tnsnames.ora or set /etc/hosts | | ORA-28040: No matching auth | Protocol version mismatch | Set SQLNET.ALLOWED_LOGON_VERSION=8 in sqlnet.ora | | Library link error | Missing libaio or libnsl | yum install libaio libnsl | Mandate TLS 1

SQLNET.ENCRYPTION_CLIENT = REQUIRED SQLNET.ENCRYPTION_TYPES_CLIENT = (TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) SQLNET.CRYPTO_SEED = "randomseedvalue" Integration with OS credentials (Linux PAM): linux oracle client