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Securing Linux’s master sysadmin command: Sudo

Sudo is one of the most powerful and dangerous tools in the Unix or Linux system administrator’s toolbox. With it, an ordinary user can run commands just as if he or she were the superuser or any other user. Now, One Identity, the company behind the utility, has released a new version of sudo, called sudo 1.9, which gives it better auditing, logging, and security than ever before.

Sudo, thanks in no small part to Randall Munroe’s famous xkcd cartoon, is famous. It’s also infamous in some circles because it is so easy to make system-destroying blunders such as the classic:

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