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Security Linux News for Jun 02, 2001

  • UnixReview.com: Hacking Linux Exposed: Linux Security Secrets & Solutions (Jun 02, 2001, 21:15)
    Gripes with the title aside ('hacking' used to refer 'cracking'), this review says "Hacking Linux Exposed" is a good overall beginner's guide to Linux security, offering useful tips on securing essential services and shutting down the non-essentials, and much more.

  • Pinehead.com: iptables Tutorial (Jun 02, 2001, 20:30)
    Pinehead offers a look at iptables, explaining the theory and offering some examples of practice in setting up a simple firewall.

  • Caldera Security Advisory: Webmin root account leak (Jun 02, 2001, 04:18)
    "When starting system daemons from the webmin webfrontend, webmin does not clear its environment variables. Since these variables contain the authorization of the administrator, any daemon gets these variables. A simple attack would be to write a CGI scripts which just dumps all environment variables and wait for the administrator to restart apache using webmin."