Ascp4: Transferring From The Command Line With Ascp 4; Introduction To Ascp 4; Ascp 4 Command Reference - IBM Aspera HST Admin Manual

ascp4: Transferring from the Command Line with Ascp 4

Ascp 4 is a FASP transfer binary similar to Ascp but it has different strengths as well as capabilities that are
unavailable with Ascp.

Introduction to Ascp 4

Ascp 4 is a FASP transfer binary that is optimized for sending extremely large sets of individual files. The executable,
ascp4, is similar to ascp and shares many of the same options and capabilities, in addition to data streaming
capabilities.
Both Ascp 4 and Ascp are automatically installed with IBM Aspera High-Speed Transfer Server, IBM Aspera High-
Speed Transfer Endpoint, and IBM Aspera Desktop Client.
Ascp 4 Streaming Transfers
Ascp 4 can be used for high-speed data stream transfers. For more information, see
on page 154.
HST Server and HST Endpoint licenses prohibit users from streaming video or media. A separate product, IBM
Aspera Streaming for Video, is available for video streaming. For more information, see the
for Video User Guide.
Required Configuration for Multicast-to-Multicast Streaming
The transfer user who authenticates the data multicast stream transfer must have no docroot configured in
aspera.conf. A file restriction can be set instead to restrict access.
Run the following command to unset a docroot and set a file restriction:
# asconfigurator -x
"set_user_data;user_name,username;absolute,AS_NULL;file_restriction,|restriction"
The restriction can be set to allow all access (*) or limited by protocol, hostname or path:
Restriction
By protocol
By protocol and hostname
By protocol, hostname, and port

Ascp 4 Command Reference

Supported environment variables, the general syntax, and command options for ascp4 are described in the following
sections. ascp4 exits with a 0 on success or a 1 on error. The error code is logged in the ascp4 log file.
Note: Not all ascp options are available with ascp4. For more information, see
Options on page 138. Additionally, ascp4 transfers fail if the user's docroot is a symbolic link, whereas ascp
supports symbolic link docroots.
| ascp4: Transferring from the Command Line with Ascp 4 | 144
Data Streaming Command Syntax
Format Example
udp://*
tcp://*
udp://hostname*
tcp://hostname:5000*
Comparison of Ascp and Ascp 4
IBM Aspera Streaming