To keep up with the latest security alerts, you may want to visit one or more of the following sites on a daily basis:
CERT Coordination Center at http://www.cert.org
Computer Incident Advisory Capability (CIAC) at http://www.ciac.org/ciac/
National Infrastructure Protection Center at http://www.nipc.gov/
If you have access to Internet newsgroups, you can periodically browse the following:
comp.security.announce-A moderated newsgroup that includes announcements from CERT about security.
comp.security.unix-A newsgroup that includes discussions of UNIX security issues, including items related to Red Hat Linux
If you prefer to receive regular security updates through email, you can also sign up for, or subscribe to, various mailing lists:
redhat-watch-list-Follow the directions in www.redhat.com/mailing-lists/ to subscribe to this mailing list.
linux-security-Follow the directions in www.redhat.com/mailing-lists/ to subscribe to this mailing list.
FOCUS-LINUX-Fill out the form in http://online.securityfocus.com/ cgi-bin/sfonline/subscribe.pl to subscribe to this mailing list focused on Linux security issues.
Cert Advisory mailing list-Follow the directions in http://www.cert.org/contact_cert/certmaillist.html to subscribe to this mailing list.
Finally, you should check Red Hat's website at www.redhat.com/apps/support/errata/index.html for updates that may fix any known security problems with Red Hat Linux.