Personally I find the default editor in Alienvault OSSIM a real pain to use, especially when I’m trying to edit crontabs.
Here’s a quick way to change it:
1. Logon to the system via SSH with the account you want to change the editor on
2. Open the bashrc for that user:
3. At the bottom add in
4. Then hit the escape key and type
If you want nano just use nano in-place of vi. Then the next time you open crontab it’ll use your preferred editor (e.g. vi or nano).