A host in RHEL 6.7 attempts to connect to OceanStor 2200 V3 storage in IP SAN mode. When an iSCSI connection is initiated, the message "daemon access denied" is displayed.
1. Verify that the network connection between the host and storage device is normal. No packet loss occurs during the ping operation.
2. Port 3260 for connecting the host to the storage device is normal. A Windows host can initiate iSCSI connections properly.
3. Generally, access denied is caused by insufficient permissions. From the communication with the customer, we find that security hardening has been performed for the system and the root user is not allowed. Switch to the root user and initiate the iSCSI connection. The connection is normal.