LINUX SECURITY Dongmei Wu ID:103712 8/25/00

Agenda Overview Physical Security Local Security Files and File system Security Password Security and Encryption Kernel Security Network Security  Conclusion

Overview Developing A Security Policy Means of Securing Your Site Host Security Local Network Security

Physical Security Computer locks BIOS Security Boot Loader Security xlock and vlock Detecting Physical Security Compromises

Local Security Creating New Accounts Root Security

Files and Filesystem Security File Permissions Integrity Checking

Password Security and Encryption Public-Key Cryptography SSL “Crack"

Kernel Security As the kernel controls your computer's networking, it is important that it be very secure, and not be compromised. To prevent some of the latest networking attacks, you should try to keep your kernel version current.

Network Security Packet Sniffers System services Verify Your DNS Information Firewalls

Conclusion No computer system can ever be completely secure. The more secure your system is, the more intrusive your security becomes.