An administrator has backups for a Linux client that are failing with the following error...

The correct command is bpclntcmd. A NetBackup Status 58: can’t connect to client indicates that the NetBackup server or media server cannot establish the required connection to the client. Veritas/Cohesity troubleshooting guidance states that this failure occurs when the media server cannot connect to the client on required NetBackup communication ports such as PBX/vnetd/bpcd, and connectivity or name-resolution problems are common causes. The bpclntcmd utility is the appropriate command from the listed options because it validates NetBackup host name and IP resolution between NetBackup nodes. Cohesity documentation states that bpclntcmd -ip and bpclntcmd -hn are used to verify whether a NetBackup node can resolve IP addresses and host names of other NetBackup nodes, and specifically notes using bpclntcmd -hn on the NetBackup server to verify that the client name resolves correctly. For this scenario, the administrator would run bpclntcmd from the media server against the Linux client to confirm that the client name resolves to the expected IP address and that reverse resolution is consistent. nbemmcmd is for EMM/media database operations, bpplclients lists policy clients, and bpclient manages client attributes. References/topics: Status 58 troubleshooting, bpclntcmd utility, client name resolution, and media-server-to-client connectivity validation.