During SAS batch processing and or server processing it is possible to limit access to files and some specific SAS features by using SAS system option: Lockdown.
This option could be specified during SAS invocation and or in SAS Configuration files.
What is it?
The LOCKDOWN option is used in a multi-server installation to limit file system access and limits the SAS language features. Lockdown is used together with another SAS System option: NOXMCD.
How does it work?
Once a LOCKDOWN option is effective on a SAS session, SAS enters in a locked-down state after it completes its initialization point. Once in a locked-down state SAS limits file system access (local files and directories) and only validated paths listed in the “lockdown path list” (aka allowed list) are allowed access.
A Lockdown is in effect after the SAS session is initialized. During initialization metadata pre-assigned libraries, all autoexec, SASHELP, SASUSER, LOG, WORK is available. Once SAS session is initialized, the Lockdown takes effect. The initialization process order is as follows, once done Lockdown is in effect.
SAS Lockdown also limits access to certain SAS language features. For example:
Are some well known features that are limited while in Lockdown state.
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