This is Security-HOWTO.info, produced by makeinfo version 4.0b from /tmp/sgml-tools-dir-18269/sgmltmp.Security-HOWTO18269.info.2. \input texinfo  Indirect: Security-HOWTO.info-1: 150 Security-HOWTO.info-2: 43897 Security-HOWTO.info-3: 92658 Security-HOWTO.info-4: 140974  Tag Table: (Indirect) Node: Top150 Node: Introduction1255 Node: New Versions of this Document2010 Node: Feedback2616 Node: Disclaimer3096 Node: Copyright Information3816 Node: Overview4961 Node: Why Do We Need Security?5529 Node: How Secure Is Secure?6674 Node: What Are You Trying to Protect?8196 Node: Developing A Security Policy12072 Node: Means of Securing Your Site13561 Node: Host Security15016 Node: Local Network Security15739 Node: Security Through Obscurity16565 Node: Organization of This Document17329 Node: Physical Security19206 Node: Computer locks20536 Node: BIOS Security21867 Node: Boot Loader Security24083 Node: xlock and vlock26035 Node: Security of local devices27690 Node: Detecting Physical Security Compromises28231 Node: Local Security30324 Node: Creating New Accounts31301 Node: Root Security32635 Node: Files and File system Security36670 Node: Umask Settings42261 Node: File Permissions43897 Node: Integrity Checking50569 Node: Trojan Horses52381 Node: Password Security and Encryption53580 Node: PGP and Public-Key Cryptography56252 Node: SSL S-HTTP and S/MIME58858 Node: Linux IPSEC Implementations61432 Node: `ssh' (Secure Shell) and `stelnet'63352 Node: PAM - Pluggable Authentication Modules66211 Node: Cryptographic IP Encapsulation (CIPE)67855 Node: Kerberos69879 Node: Shadow Passwords-71426 Node: "Crack" and "John the Ripper"72588 Node: CFS - Cryptographic File System and TCFS - Transparent Cryptographic File System74046 Node: X11 SVGA and display security75017 Node: X1175345 Node: SVGA77343 Node: GGI (Generic Graphics Interface project)77850 Node: Kernel Security78530 Node: 2-0 Kernel Compile Options79579 Node: 2-2 Kernel Compile Options85085 Node: Kernel Devices88085 Node: Network Security90194 Node: Packet Sniffers91229 Node: System services and tcp[lowbar]wrappers92658 Node: Verify Your DNS Information96957 Node: identd97482 Node: Configuring and Securing the Postfix MTA99004 Node: SATAN ISS and Other Network Scanners99721 Node: Detecting Port Scans101844 Node: sendmail qmail and MTA's102816 Node: Denial of Service Attacks104739 Node: NFS (Network File System) Security-108227 Node: NIS (Network Information Service) (formerly YP)-109792 Node: Firewalls111115 Node: IP Chains - Linux Kernel 2-2-x Firewalling113827 Node: Netfilter - Linux Kernel 2-4-x Firewalling114826 Node: VPNs - Virtual Private Networks117552 Node: Security Preparation (before you go on-line)118734 Node: Make a Full Backup of Your Machine119496 Node: Choosing a Good Backup Schedule120415 Node: Testing your backups121039 Node: Backup Your RPM or Debian File Database121531 Node: Keep Track of Your System Accounting Data122788 Node: Apply All New System Updates-125865 Node: What To Do During and After a Breakin126523 Node: Security Compromise Underway-127051 Node: Security Compromise has already happened129698 Node: Closing the Hole130229 Node: Assessing the Damage132165 Node: Backups Backups Backups!133447 Node: Tracking Down the Intruder-134487 Node: Security Sources135886 Node: LinuxSecurity-com References136459 Node: FTP Sites137668 Node: Web Sites138381 Node: Mailing Lists140046 Node: Books - Printed Reading Material140974 Node: Glossary142708 Node: Frequently Asked Questions146314 Node: Conclusion151888 Node: Acknowledgments152631  End Tag Table