# Il modello di sicurezza di Unix/Linux

*   _Understand basic Unix file permissions_ -  Chad Perrin

    &#x20;[https://www.techrepublic.com/blog/it-security/understand-basic-unix-file-permissions/](https://www.techrepublic.com/blog/it-security/understand-basic-unix-file-permissions/)
*   _managing default Unix file permissions with adduser and umask_ - Chad Perrin

    &#x20;[https://www.techrepublic.com/blog/it-security/managing-default-unix-file-permissions-with-adduser-and-umask/](https://www.techrepublic.com/blog/it-security/managing-default-unix-file-permissions-with-adduser-and-umask/)
*   _Understand the setuid and setgid permissions to improve security_ - Chad Perrin

    &#x20;[https://www.techrepublic.com/blog/it-security/understand-the-setuid-and-setgid-permissions-to-improve-security/](https://www.techrepublic.com/blog/it-security/understand-the-setuid-and-setgid-permissions-to-improve-security/)
*   Come gestire utenti e permessi su _Linux Ubuntu_

    [https://www.cloud.it/tutorial/come-gestire-utenti-e-permessi-su-ubuntu.aspx](https://www.cloud.it/tutorial/come-gestire-utenti-e-permessi-su-ubuntu.aspx)
* Problems in the Design of Unix  [https://homepage.cs.uri.edu/\~thenry/resources/unix\_art/ch20s03.html](https://homepage.cs.uri.edu/~thenry/resources/unix_art/ch20s03.html)

