[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] name service      security and      switch (NIS, NIS+)  Name Service Caching Daemon (nscd)  named daemon  named nameserver  named user  named-xfer program  named.conf file  2nd  nameserver  [See DNS] nameserver attacks, DNS  nameserver service  namespace  National Institute of Standards and Technology (NIST)  National Science Foundation Network  National Security Agency (NSA)  natural disasters  [See environmental dangers] NBT (NetBIOS over TCP/IP)  NcFTPD server  ncheck command  2nd  needexpnhelo option, sendmail  needmailhelo option, sendmail  needvrfyhelo option, sendmail  Nemeth, Evi (UNIX System Administration Handbook)  Nessus security scanner  NetBIOS over TCP/IP (NBT)  NetBIOS protocol  NetBSD  [See also BSD Unix]2nd  3rd      CVS used by      history of  2nd  netfilter program  2nd  netgroup file  Netgroup table (NIS+)  netgroups file  2nd  netgroups, NIS  NetInfo  2nd  3rd  Netmasks table (NIS+)  Netnews messages, authentication and  .netrc file  Netscape Navigator, random number generator  netstat command  2nd  3rd  4th  netwall service  network authentication systems  2nd  [See also PAM]     DCE  2nd  3rd  4th  5th  6th      Kerberos  2nd  3rd  4th      LDAP  2nd  3rd  4th      NetInfo  2nd  3rd      NIS  2nd  3rd  4th      NIS+  2nd  3rd      RADIUS  2nd  3rd      requirements for      SESAME  network cables     cutting, as destructive attack      fiber optic      routing of  network connections     eavesdropping on      loss of  Network Filesystem  [See NFS] network filesystems  2nd  [See also NFS; SMB]     remote, mounted  network forensics analysis tools (NFATs)  Network Information Service  [See NIS] Network News Transport Protocol (NNTP)  network providers, trusting  Network Security: Private Communications in a Public World (Kaufman, Charles; Perlman, Radia; Specin  network servers  [See Internet servers] network services     auth Identification Protocol  2nd      authentication for      back doors in      BOOTP protocol      chargen service  2nd  3rd      created by intruders      DHCP protocol      disabling      DNS  [See DNS]     echo service  2nd  3rd      in /etc/services file      finger program  2nd      FTP  [See FTP]     HTTP  [See HTTP]     inetd program handling      list of  2nd      logging      monitoring      NNTP  [See NNTP]     NTP  2nd      POP  [See POP]     programming      rexec      rlogin      RPC's portmapper  2nd      rpc.rexd      rsh  2nd      securing      security risks of      SMTP  [See SMTP]     SNMP  [See SNMP]     SSH  2nd  3rd      systat service      TACACS and TACACS+      TCP protocol      Telnet  2nd  3rd      TFTP  [See TFTP]     UDP protocol      X Window System  Network Time Protocol  [See NTP] network weaving  network-based IDS (NIDS)  networks      ARPANET      backing up      cables for      clogging (SYN flood attacks)      compromised, risks of being prosecuted for      configuration files      connectors for      denial of service attacks on      disabling physically      forensics analysis tools (NFATs) for      Internet      IP  2nd  [See also TCP/IP networks]     LANs  [See LANs]     logging across      MANs  [See MANs]     message flooding attacks on      NFSNET      packet-switching      partitioning      ping of death attacks on      published resources on      scanning      security and      security checklist for  2nd      service overloading attacks on      sniffers      spoofed connection      superuser control of      syslog facility and      TCP/IP  [See TCP/IP networks]     WANs  [See WANs]     wireless, jamming  Networks table (NIS+)  Neumann, Peter G.      Computer Related Risks  Neuromancer (Gibson, William)  The New Kornshell Command and Programmang Language (Bolsky, Morris I. and Korn, David G.)  newgrp command  newkey command  2nd  news  [See Usenet] news user  newsyslog program  newsyslog.conf file  .nexrc file  NFATs (network forensics analysis tools)  NFS (Network Filesystem)  2nd  3rd  [See also RPC]4th  5th      bugs in      client access, limiting      client-side security      exported filesystems, limiting      exporting filesystems read-only      exporting home directories      exporting sensitive files with      exporting server executables      file handles      file permissions      find command on      fsirand program and      group write permission for files      history of      intruders compromising      listing clients who have mounted directories      listing export lists      -local option      MOUNT protocol and      mounted filesystems, limiting      NFS protocol and      portmon variable and      protection mode for files      reasons not to use      restricted filesystems mounted within      Secure NFS      security checklist for      security of  2nd      server-side security      superuser ownership of files      TCP links and      Version 3  2nd      Version 4      versions of      WebNFS      -xdev option  NFS protocol      connectionless servers and      mounting filesystems with      reliability of      stateless servers and      superuser and  NFS service  2nd  nice command  nice number of processes  NIDS (network-based IDS)  nidump command  NIH web site  NIS (Network Information Service)  2nd  3rd  4th      accounts         importing  2nd          including and excluding      changing passwords      clients      domains      intruders compromising      limitations of      maps      name service switch      netgroups      plus sign (+) in files  2nd      protecting database and commands      secret keys and      Secure RPC with      spoofing      UDP      unintended information disclosure with      Yellow Pages  NIS+  2nd  3rd      access control for objects  2nd      changing passwords      limitations of      name service switch      passwords      protecting database and commands      running in NIS compatibility mode      secret keys and      Secure RPC with      security levels of  nisaddcred command  niscat command  nischown command  nispasswd command  2nd  3rd  4th  NIST (National Institute of Standards and Technology)  NIST CSRC web site  nmap network-mapping tools  2nd  3rd  NNTP (Network News Transport Protocol)  2nd  nobody user  2nd  nobody variable  noexpn option, sendmail  nonce  nosuid  noverb option, sendmail  novrfy (sendmail)  npasswd package  NPROC variable  NSA (National Security Agency)  2nd  nscd (Name Service Caching Daemon)  nss_ldap  2nd  nsswitch.conf file  ntalk service  NTFS filesystem  NTP (Network Time Protocol)  2nd  3rd  ntpd daemon  2nd  ntpdate command  2nd  null device  null modem adapter  null modem cable  NULL request  "The Number Field Sieve" (Lenstra, A. K.; Lenstra, H. W., Jr.; Manasse, M. S.; Pollard, J. M.)