System Administration Guide: Network Services
    
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 octal numbers escape character ( Index Term Link )
 
 open errors, NFS and ( Index Term Link )
 
 OPEN share support, NFS version 4 ( Index Term Link )
 
 opening remote system connections ( Index Term Link ) ( Index Term Link )
 
 openssl command and sendmail ( Index Term Link )
 
 operating systems
  map variables ( Index Term Link )
  supporting incompatible versions ( Index Term Link )
 
 options (PPP)
  asyncmap ( Index Term Link )
  auth ( Index Term Link )
  call ( Index Term Link ) ( Index Term Link )
  connect ( Index Term Link ) ( Index Term Link )
  crtscts ( Index Term Link )
  debug ( Index Term Link )
  guidelines for use ( Index Term Link )
  init ( Index Term Link ) ( Index Term Link )
  local ( Index Term Link )
  login ( Index Term Link ) ( Index Term Link )
  name ( Index Term Link )
  noauth ( Index Term Link ) ( Index Term Link )
  noccp ( Index Term Link )
  noipdefault ( Index Term Link )
  noservice ( Index Term Link )
  option privileges ( Index Term Link )
  parsing by the pppd daemon ( Index Term Link )
  passive ( Index Term Link )
  persist ( Index Term Link )
  sync ( Index Term Link )
  xonxoff ( Index Term Link )
 
 options file, in PPP ( Index Term Link )
 
 options in sendmail command
  command-line options from version 8.12 ( Index Term Link ) ( Index Term Link ) ( Index Term Link )
  command-line options in version 8.13 ( Index Term Link )
  configuration file options in version 8.13 ( Index Term Link )
  PidFile option ( Index Term Link )
  ProcessTitlePrefix option ( Index Term Link )
 
 options.ttyname file (PPP), See /etc/ppp/options.ttyname
 
 OSNAME map variable ( Index Term Link )
 
 OSREL map variable ( Index Term Link )
 
 ostype directory ( Index Term Link )
 
 OSVERS map variable ( Index Term Link )
 
 OTHER option of Permissions file ( Index Term Link )
 
 overlaying already mounted file system ( Index Term Link )
 
 owner- prefix, mail alias with ( Index Term Link )
 
 owner- prefix and mailbox names ( Index Term Link )
 
 owner-owner and mailbox names ( Index Term Link )