27.2.7. Controlling Access to At and Batch
You can restrict the access to the
batchcommands using the
/etc/at.denyfiles. These access control files use the same format defining one user name on each line. Mind that no whitespace are permitted in either file.
If the file
at.allowexists, only users listed in the file are allowed to use
batch, and the
at.denyfile is ignored.
at.allowdoes not exist, users listed in
at.denyare not allowed to use
atd) does not have to be restarted if the access control files are modified. The access control files are read each time a user tries to execute the
The root user can always execute
batchcommands, regardless of the content of the access control files.