[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] c_rehash  cache poisoning  2nd  3rd      best defense against      security advisories  caching  2nd  [See also dnscache]     caching-only name servers  2nd  3rd      proxies  Campbell, Aaron  central log server  Certificate Authorities (CAs)  2nd      creating using OpenSSL      SSL transactions, and  certificate-based authentication  2nd      specifying where to keep certificates      Stunnel, and          client-based authentication  certificates     client  2nd          authentication          Stunnel, and      digital      generating and signing      how SSL clients, servers, and CAs use      public      server          unencrypted keys      x.509  2nd  CGI (Common Gateway Interface)      accessing databases      built-in programs      directories         Perl, and          PHP, and      executing programs      FastCGI      HTTP, and      including files      languages      runaway programs      securing scripts      standalone programs      suEXEC      uploading files from forms  challenge-response     authentication      mechanisms  channellist, logging option in named.conf file  Check Point, stateful packet filtering firewall  CheckHostIP, ssh_config parameter  checksums  chkconfig, managing startup services  chkrootkit  chroot filesystems, running services in  chroot jail  2nd      anonymous FTP      BIND          v8          v9      ProFTPD example      Sendmail, and      subversion  cipher, defined  Cipher, ssh_config parameter  Ciphers, ssh_config parameter  ciphertext, defined  circuit relay proxies versus application gateways  Cisco PIX  cleartext     administration tools      defined      username/password authentication  client certificates  [See certificates] client-server email relays  CNAME records  Code Red attacks  Cohen, Fred  2nd  combined access control in Apache  comment, rsync option  Common Gateway Interface  [See CGI] Compression, ssh_config parameter  compromised system  [See system integrity] confidentiality of data, overview  ConfigureMiscPAM.pm, InteractiveBastille module  connection-oriented applications  cookies and sessions explained  cost estimates for attacks  Costales, Bryan  CPAN (Comprehensive Perl Archive Network)  CRAM-MD5  cron jobs and authentication  cryptographic     hashes      termonology  curl  CyberCop Scanner  Cyrus SASL, obtaining