A systems administrator created a user cron to run a scheduled database backup cronjob on the server at 1 a.m. every day. The following is the cronjob syntax:
0 1 * * * /bin/sh backup.sh
The backups, however, are not being created. When checking the crontab file, the administrator sees the following error:
/var/spool/cron/crontab/cron: Permission denied
Which of the following will permit the cronjob to execute?

Question

A systems administrator created a user cron to run a scheduled database backup cronjob on the server at 1 a.m. every day. The following is the cronjob syntax:

0 1 * * * /bin/sh backup.sh

The backups, however, are not being created. When checking the crontab file, the administrator sees the following error:

/var/spool/cron/crontab/cron: Permission denied

Which of the following will permit the cronjob to execute?

Sivakumar Balasundram · Accepted Answer

Creating the file cron.allow and adding user cron to it

Sivakumar Balasundram · Answer

Giving cron ownership of the file /usr/bin/crontab

Sivakumar Balasundram · Answer

Running sudo cron restart to activate the cronjob

Sivakumar Balasundram · Answer

Running sudo crontab -u cron -e to edit the file with sudo

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