What is ETC cron allow?
You can control access to the crontab command by using two files in the /etc/cron. d directory: cron. allow exists, only the users who are listed in this file can create, edit, display, or remove crontab files. If cron. allow does not exist, all users can submit crontab files, except for users who are listed in cron.
How do I edit crontab entry?
How to Create or Edit a crontab File
- Create a new crontab file, or edit an existing file. $ crontab -e [ username ]
- Add command lines to the crontab file. Follow the syntax described in Syntax of crontab File Entries.
- Verify your crontab file changes. # crontab -l [ username ]
Is it necessary for all users to read / etc / crontab?
I understand that this file is for system cron jobs and other users should not have permission to modify it. The current permissions allows all users read access to the file, enabling them to view the contents. Is it necessary for all users to be able read /etc/crontab?
Is there a way to deny access to crontab?
The cron.deny file, which is created during SunOS software installation, contains the following user names: None of the user names in the default cron.deny file can access the crontab command. You can edit this file to add other user names that will be denied access to the crontab command.
Can you access the crontab command in Oracle Solaris?
So, after Oracle Solaris software installation, all users (except users who are listed in the default cron.deny file) can access the crontab command. If you create a cron.allow file, only these users can access the crontab command.
Do you need superuser privileges to run crontab?
If cron.allow does not exist, all users can submit crontab files, except for users who are listed in cron.deny. If neither cron.allow nor cron.deny exists, superuser privileges are required to run the crontab command.