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Index: S

• S command (sendmail): The Set Ruleset Command
• SAINT (automated system monitoring): Automated Monitoring
• Samba
• • daemon: Using Samba to Share Resources with Windows
  • directory sharing: Sharing directories through Samba
  • name servers: NetBIOS Name Service
  • overview: Using Samba to Share Resources with Windows
  • passwords: Configuring a Samba Server
  • printer sharing: Print Services
  • • Sharing printers through Samba
  • server, configuring: Configuring a Samba Server
• SANS (System Administration, Networking and Security) Institute website: Use the network to distribute information
• SARA (automated system monitoring): Automated Monitoring
• SAY command (chat): chat
• scalability
• • address translation compared to proxy servers: Obtaining an IP Address
  • DNS: DNS
  • gateway hierarchy: Internet Routing Architecture
  • host tables: The Host Table
• scaninterval (gated): Interface Statements
• ScoreBoardFile directives (httpd.conf file): Defining Where Things Are Stored
• scp (secure copy): Secure Shell
• screened subnet firewall architecture: Firewalls
• ScriptAlias directive (httpd.conf file): Defining Where Things Are Stored
• scripts, system initialization: Understanding /etc/inittab
• search entry (resolv.conf file): The Resolver Configuration File
• sec= option (vfstab file): The vfstab and fstab files
• secondary servers: BIND, Resolvers, and named
• secret field (chap-secrets file): PPP Daemon Security
• secring.gpg file: Public-Key Encryption Tools
• sec=type option (share command): The share command
• secure servers, bastion hosts: Firewalls
• security: chat
• • access control
  • • language extensions: Optional access control language extensions
    • overview: Access Control
    • shell command: Defining an optional shell command
    • tcpd: tcpd access control files
  • aclok option (share command): The share command
  • address spoofing: Obtaining an IP Address
  • address translation: Obtaining an IP Address
  • applications
  • • removing unnecessary: Remove Unnecessary Software
    • updating: Keep Software Updated
  • authentication
  • • shadow password files: The Shadow Password File
    • ssh: Secure Shell
  • chat: chat
  • dedicated connections and: The PPP Daemon
  • distributing responsibility: Distributed Control
  • • subnets: Use subnets to distribute control
  • encryption: Encryption
  • • public key: Encryption
    • public key tools: Public-Key Encryption Tools
    • stunnel: stunnel
    • symmetric: When Is Symmetric Encryption Useful?
  • firewalls
  • • filtering routers: Filtering Traffic with iptables
    • functions of: Functions of the Firewall
    • iptables command: Defining iptables filter rules
    • overview: Firewalls
  • information resources: Use the network to distribute information
  • Internet connection considerations: Connected and Non-Connected Networks
  • passwords
  • • one-time: One-Time Passwords
    • OPIE: OPIE
    • selecting: Choosing a Password
  • planning, overview: Security Planning
  • policies, creating: Writing a Security Policy
  • PPP: PPP Daemon Security
  • proxy servers: Obtaining an IP Address
  • r commands (Unix): Secure the r Commands
  • • disabling: Secure Shell
  • resources: Words to the Wise
  • risks: Connected and Non-Connected Networks
  • • types of: Assessing the Threat
  • Samba, encrypted passwords: Configuring a Samba Server
  • ssh: Secure Shell
  • system monitoring: Know Your System
  • • find command: Checking files
    • intruder detection: Looking for Trouble
    • login activity: Checking login activity
  • trusted hosts: Secure the r Commands
  • user authentication: User Authentication
  • vendors, information mailing lists: Use the network to distribute information
  • web servers
  • • CGI scripts: The CGI and SSI Threat
    • overview: Web Server Security
    • SSI: The CGI and SSI Threat
• security parameter (smb.config file): Configuring a Samba Server
• segment header: Appendix g.2. TCP Segment Header
• segments: TCP/IP Protocol Architecture
• • format: Transmission Control Protocol
  • TCP headers: Transmission Control Protocol
• SELECT command (IMAP): Internet Message Access Protocol
• send command (dip): Dial-Up PPP
• • The dip Script File
• send (gated): Trace Statements
• sendbuffer parameter (gated): The bgp Statement
• Sender fields (sendmail): Defining Mailers
• sendmail: sendmail's Function
• • sendmail's Function
  • Compiling sendmail
  • aliases, overview: sendmail Aliases
  • classes
  • • E: Modifying Local Information
    • M: Modifying Local Information
    • P: Modifying Local Information
    • w: Modifying Local Information
  • command-line arguments: The sendmail Command
  • compiling: Compiling sendmail
  • configuration commands: sendmail.cf Configuration Language
  • configuration file
  • • creating with m4 macros: Building a sendmail.cf with m4 macros
    • local information: Modifying Local Information
    • modifying: Modifying a sendmail.cf File
    • Options section: Modifying Options
    • overview: The sendmail.cf File
    • samples: Locating a Sample sendmail.cf File
    • structure: General sendmail.cf Structure
    • testing: Testing sendmail.cf
    • testing rewrite rules: Testing Rewrite Rules
  • configuration options: Building a sendmail.cf with m4 macros
  • configuring
  • • define class command: Defining Classes
    • define macro command: The Define Macro Command
    • headers command: Defining Mail Headers
    • mailers command: Defining Mailers
    • overview: sendmail.cf Configuration Language
    • precedence command: Defining Mail Precedence
    • set option command: Setting Options
    • set ruleset command: The Set Ruleset Command
    • trusted users command: Defining Trusted Users
    • version level command: The Version Level Command
  • as daemon: Running sendmail as a Daemon
  • databases, address transformation: Using Key Files in sendmail
  • define m4 macro: define
  • DOMAIN source file
  • • DNS features: DOMAIN
    • DNS macros: DOMAIN
  • FEATURE macro: FEATURE
  • forwarding: Personal Mail Forwarding
  • installing: Compiling sendmail
  • internal classes: sendmail Classes
  • K command: The sendmail K Command
  • m4 macros: sendmail Macros
  • macros, conditionals: Conditionals
  • mailer definitions: Some common mailer definitions
  • mailer flags: sendmail Mailer Flags
  • MAILER source file: MAILER
  • masquerading features: DOMAIN
  • masquerading macros: DOMAIN
  • options: sendmail Options
  • OSTYPE macro: OSTYPE
  • overview: sendmail's Function
  • queue processing time: Running sendmail as a Daemon
  • relay features: DOMAIN
  • rewrite rules: Rewriting the Mail Address
  • • pattern matching: Pattern Matching
    • transformation fields: Transforming the Address
    • transformation with database: Transforming with a database
  • SMTP, receiving: Running sendmail as a Daemon
  • source code distribution website: Locating a Sample sendmail.cf File
  • spam macros: DOMAIN
  • test commands: Testing Rewrite Rules
• sendmail.cf file
• • configuring: More sendmail.cf
  • creating with m4 macros: Building a sendmail.cf with m4 macros
  • modifying
  • • local information: Modifying Local Information
    • Options section: Modifying Options
    • overview: Modifying a sendmail.cf File
  • overview: The sendmail.cf File
  • samples: Locating a Sample sendmail.cf File
  • structure: General sendmail.cf Structure
  • testing: Testing sendmail.cf
  • testing rewrite rules: Testing Rewrite Rules
• Sequence Number field, TCP headers: Transmission Control Protocol
• sequence (sendmail K command value): The sendmail K Command
• Serial Line IP protocol, BSD Unix support: The pseudo-device statement
• serial lines
• • connections, troubleshooting: Troubleshooting Serial Connections
  • overview: TCP/IP Over a Serial Line
  • protocols, SLIP: The Serial Protocols
• serial ports, troubleshooting: Troubleshooting Serial Connections
• serial-queries option (named): The options Statement
• server field
• • chap-secrets file: PPP Daemon Security
  • inet.conf file: The Internet Daemon
• server-identifier parameter (dhcpd): Configuration Parameters
• Server Message Block (SMB): File Sharing
• server-name parameter (dhcpd): Configuration Parameters
• Server Selection (SRV) records: Server Selection record
• server setting (smb.config file): Configuring a Samba Server
• Server Side Includes (see SSI)
• server statement (named.conf file): The server Statement
• server string parameter (smb.config file): Configuring a Samba Server
• ServerAdmin defines (httpd.conf file): Basic Configuration Directives
• ServerAdmin values (Apache), changing (Solaris): Configuring Apache on Solaris
• ServerName (httpd.conf file): Basic Configuration Directives
• ServerRoot directive (httpd.conf file): Basic Configuration Directives
• servers: Configuring Apache
• • (see also Apache; web servers)
  • caching-only: BIND Configurations
  • • configuration: caching-only server configuration
  • configuration: Configuration Servers
  • • DHCP: Dynamic Host Configuration Protocol
    • RARP: Reverse Address Resolution Protocol
  • distributed, management: Managing Distributed Servers
  • DNS, authoritative: DNS
  • IMAP
  • • configuring: IMAP Server
    • testing: Internet Message Access Protocol
  • mail: Planning Your Mail System
  • master name: BIND Configurations
  • • configuration: Master and slave server configurations
  • name, classifications: BIND, Resolvers, and named
  • NFS: The Network File System
  • POP, configuring: POP Server
  • PPP, configuring: PPP Server Configuration
  • root: The Domain Hierarchy
  • • cache initialization files: The Cache Initialization File
  • Samba, configuring: Configuring a Samba Server
  • slave: BIND Configurations
  • • configuration: Master and slave server configurations
  • TCP/IP networks compared to PC LAN servers: Network Services
• ServerType directive (httpd.conf file): Basic Configuration Directives
• service extensions, SMTP: Multipurpose Internet Mail Extensions
• services file, NIS map: Network Information Service
• Session Layer (OSI Model): Data Communications Model
• • Data Communications Model
• set option command (sendmail): Setting Options
• SetEnvIf directive (Apache): Using Encryption
• setgid files, share command and: The share command
• setuid files, share command and: The share command
• sftp (secure shell): Secure Shell
• shadow password files: The Shadow Password File
• share command
• • options: The share command
  • persistence: The share command
• share setting (smb.config file): Configuring a Samba Server
• shared media networks: Subdividing an Ethernet
• shared-network statement (dhcpd): Topology Statements
• sharp sign (#)
• • automounter comments: NFS Automounter
  • comments: The Host Table
  • comments in host table: The Host Table
  • inittab file: Understanding /etc/inittab
• shell command
• • dip: The dip Script File
  • security: Defining an optional shell command
• shell files, security considerations: Looking for Trouble
• show-password option (pppd): The PPP Daemon
• showmount command: Mounting Remote Filesystems
• showwarnings parameter (gated): The bgp Statement
• sig-validity-interval (named): The BIND 9 options statement
• SIGHUP
• • gated signal processing: Signal Processing
  • named signal processing: Signal Processing
  • pppd signal processing: Signal Processing
• SIGILL (named signal processing): Signal Processing
• SIGINT
• • gated signal processing: Signal Processing
  • named signal processing: Signal Processing
  • pppd signal processing: Signal Processing
• SIGKILL (gated signal processing): Signal Processing
• signal processing
• • gated: Signal Processing
  • named command: Signal Processing
  • pppd: Signal Processing
• SIGSYS (named signal processing): Signal Processing
• SIGTERM
• • gated signal processing: Signal Processing
  • named signal processing: Signal Processing
• SIGUSR2
• • named signal processing: Signal Processing
  • pppd signal processing: Signal Processing
• SIGUSR2 (gated signal processing): Signal Processing
• SIGWINCH (named signal processing): Signal Processing
• silent option (pppd): The PPP Daemon
• Simple Mail Transfer Protocol (see SMTP)
• • Simple Mail Transfer Protocol
• simplex (gated): Interface Statements
• SITE macro (sendmail): sendmail Macros
• SITECONFIG macro (sendmail): sendmail Macros
• size bytes (gated): Trace Statements
• size field (lsmod command): Using Dynamically Loadable Modules
• skey command (dip): The dip Script File
• slave servers: BIND, Resolvers, and named
• • BIND Configurations
  • configuring: Master and slave server configurations
  • • The named.local File
• sleep 2 command (dip): Dial-Up PPP
• sleep command (dip): The dip Script File
• SLIP END character: The Serial Protocols
• SLIP ESC character: The Serial Protocols
• SLIP (Serial Line IP): The Serial Protocols
• • limitations: The Serial Protocols
• SMB (Server Message Block): File Sharing
• smb.conf file: Configuring a Samba Server
• • directory sharing: Sharing directories through Samba
  • global section: Configuring a Samba Server
  • home section: The smb.conf homes section
  • name server configuration: NetBIOS Name Service
  • printer sharing: Sharing printers through Samba
• smbd command: Using Samba to Share Resources with Windows
• smbpasswd file: Configuring a Samba Server
• smtp8 mailer: Building a sendmail.cf with m4 macros
• SMTP (Simple Mail Transfer Protocol): Application Layer
• • Simple Mail Transfer Protocol
  • commands: Simple Mail Transfer Protocol
  • • source code: Simple Mail Transfer Protocol
    • viewing: The sendmail Command
  • ESMTP (Extended SMTP): Multipurpose Internet Mail Extensions
  • • private extensions to: Multipurpose Internet Mail Extensions
  • sendmail: Running sendmail as a Daemon
  • • required macros: Building a sendmail.cf with m4 macros
  • service extensions: Multipurpose Internet Mail Extensions
  • • Multipurpose Internet Mail Extensions
• smux statement (gated): The smux Statement
• snoop
• • diagnostic troubleshooting: Diagnostic Tools
  • troubleshooting protocols: Packet Filters
  • • ftp failure: Protocol Case Study
• Snort (automated system monitoring): Automated Monitoring
• SOA (Start of Authority) records: Start of Authority record
• • forward-mapping zone files: The Forward-Mapping Zone File
  • named.local file: The named.local File
  • reverse zone files: The Reverse Zone File
• socket options parameter (smb.config file): Configuring a Samba Server
• sockets: Data Communications Model
• • Sockets
• soft option (vfstab file): The vfstab and fstab files
• Solaris
• • AddModule directive, modules referenced: Loading Dynamic Shared Objects
  • Apache
  • • configuring: Configuring Apache on Solaris
    • Directory containers: Defining Where Things Are Stored
  • bootup: Kernel Configuration
  • broadcast addresses, setting: Setting the Broadcast Address
  • configuration files
  • • command-line option to override location: Basic Configuration Directives
    • syslog.conf: The Host Table
  • device drivers, installing: Using Dynamically Loadable Modules
  • dmesg command: The Interface Name
  • DSO modules: Loading Dynamic Shared Objects
  • dynamically loadable modules: Using Dynamically Loadable Modules
  • Ethernet, ifconfig command: The ifconfig Command
  • filesystem type, specifying: The mount command
  • hostname file: Assigning an Address
  • httpd.conf file: Solaris httpd.conf File
  • • configuration directives: Basic Configuration Directives
    • location: Configuring the Apache Server
  • ifconfig command, syntax: The ifconfig Command
  • IndexOptions directive (Apache): Creating a Fancy Index
  • kernel configuration: Kernel Configuration
  • loghost alias: The Host Table
  • mountall command: The vfstab and fstab files
  • named command, running: Controlling the named Process
  • netmasks file: Assigning a Subnet Mask
  • network interfaces, checking status: Checking the Interface with ifconfig
  • NFS, daemon locations: NFS Daemons
  • physical network address: Reverse Address Resolution Protocol
  • ping command option: The ping Command
  • point-to-point connections, defining: Point-to-point
  • PPP, configuring: Solaris PPP
  • printers, configuring: Line Printer Service
  • rc.script files: Putting ifconfig in the startup scripts
  • routed command, running: Running RIP with routed
  • routing metric, changing: Metric
  • routing tables: The Routing Table
  • runlevels: Understanding /etc/inittab
  • sendmail: Running sendmail as a Daemon
  • serial ports, troubleshooting: Troubleshooting Serial Connections
  • shadow password files: The Shadow Password File
  • share command: The share command
  • SMTP extensions: Multipurpose Internet Mail Extensions
  • static routing, adding to startup scripts: Installing static routes at startup
  • System V startup: Understanding /etc/inittab
  • vfstab files, options: The vfstab and fstab files
• sortlist command: The Resolver Configuration File
• sortlist entry (resolv.conf file): The Resolver Configuration File
• sortlist option (named): The options Statement
• source field (RIPE database): Obtaining an IN-ADDR.ARPA domain
• Source Port: Transmission Control Protocol
• Source Port numbers (UDP): User Datagram Protocol
• Source Quench Message (ICMP): Internet Control Message Protocol
• sourcegateways parameter (gated): The rip Statement
• sourcenet parameter (gated): The egp Statement
• spam
• • preventing (sendmail features): FEATURE
  • sendmail macros: DOMAIN
• speed command (dip): Dial-Up PPP
• • The dip Script File
• SPF (Dijkstra Shortest Path First) algorithm: Open Shortest Path First
• spf-interval parameter (gated): The isis Statement
• spoofing IP addresses: Obtaining an IP Address
• squash entries (exports file): The /etc/exports file
• srm.conf (Apache configuration file): Configuring the Apache Server
• SRV (Server Selection) records: Server Selection record
• ssh-keygen (secure shell): Secure Shell
• ssh (secure shell): Secure Shell
• sshd (secure shell daemon): Secure Shell
• SSI (Server Side Includes), security considerations: The CGI and SSI Threat
• ssl CA certFile parameter (smb.config file): Configuring a Samba Server
• SSL (Secure Sockets Layer)
• • Apache: Using Encryption
  • certificates, creating: Using Encryption
• SSLCertificateFile directive (Apache): Using Encryption
• SSLCertificateKeyFile directive (Apache): Using Encryption
• SSLEngine directive (Apache): Using Encryption
• SSLOptions directive (Apache): Using Encryption
• stab (sendmail K command value): The sendmail K Command
• stack (protocol): Data Communications Model
• • headers: TCP/IP Protocol Architecture
• stacksize option (named): The options Statement
• standard resource records: Standard Resource Records
• standards
• • categories of: Protocol Standards
  • protocols: TCP/IP Features
  • • Protocol Standards
• standards track RFCs, maturity levels: Protocol Standards
• start argument (sendmail): Running sendmail as a Daemon
• Start of Authority (see SOA records)
• StartServers directive (Apache): Managing the Swarm
• startup files: Installing static routes at startup
• • (see also bootup)
  • gated: Running gated at startup
  • ifconfig command: Putting ifconfig in the startup scripts
  • inetd: Understanding /etc/inittab
  • mountall command: The vfstab and fstab files
  • sendmail: Running sendmail as a Daemon
  • static routing: Installing static routes at startup
  • Unix configuration: Startup Files
  • xinetd: The Extended Internet Daemon
• STAT command (POP): Post Office Protocol
• statd command: NFS Daemons
• state (gated): Trace Statements
• static address assignment: Assigning Host Addresses
• static routing: Common Routing Configurations
• • startup files: Installing static routes at startup
  • tables: Planning Routing
  • • adding routes: Adding Static Routes
    • creating: Building a Static Routing Table
• static statements (gated): static Statements
• statistics-file option (named): The options Statement
• statistics-interval option (named): The options Statement
• STDs (standards RFCs): Protocol Standards
• stopbits command (dip): The dip Script File
• store and forward protocols: Simple Mail Transfer Protocol
• STORE command (IMAP): Internet Message Access Protocol
• stream field (inet.conf file): The Internet Daemon
• streams: TCP/IP Protocol Architecture
• strictinterfaces (gated): Interface Statements
• String value (dhcpd option statement): DHCP Options
• string values (printcap file): The printcap file
• stub areas (OSPF hierarchy): Open Shortest Path First
• stubhosts parameter (gated): The ospf Statement
• stunnel (public key encryption): stunnel
• subdirectories, share command and: The share command
• subdividing Ethernet segments: Subdividing an Ethernet
• subdomains: Creating Domains and Subdomains
• subject (DSN error code): Transforming the Address
• subnet addresses: Subnets
• subnet masks
• • assigning, ifconfig command: Assigning a Subnet Mask
  • creating: Subnets
  • defining: Defining the Subnet Mask
  • • Defining the Subnet Mask
  • distributing: Defining the Subnet Mask
  • RFCs: Subnets
  • system configuration: Getting Started
• subnet security, distributing responsibility: Use subnets to distribute control
• subnet statement (dhcpd): dhcpd.conf
• • Topology Statements
• subnetting
• • need for: Assigning Host Addresses
  • organization purposes for: Defining the Subnet Mask
  • plans, RFCs: Obtaining an official network address
  • topological reasons for: Defining the Subnet Mask
• summary-filter parameter (gated): The isis Statement
• summary-originate parameter (gated): The isis Statement
• switch (sendmail K command value): The sendmail K Command
• symbols
• • gated trace statements: Trace Statements
  • sendmail pattern matching: Pattern Matching
• SymLinksIfOwnerMatch (Options directive setting): Controlling Server Options
• symmetric encryption: Encryption
• • When Is Symmetric Encryption Useful?
• SYN bit, TCP headers: Transmission Control Protocol
• sync option (pppd): The PPP Daemon
• synchronization, TCP byte numbering: Transmission Control Protocol
• sys value (share command): The share command
• syslog (gated): Options Statements
• syslog parameter (gated): The ospf Statement
• syslog.conf configuration file: The Host Table
• system administration
• • defined: Overview of TCP/IP
  • distributed servers, managing: Managing Distributed Servers
• system configuration
• • end users, distributing to: Informing the Users
  • initialization scripts: Understanding /etc/inittab
  • planning: Getting Started
• system file, Solaris configuration: Using Dynamically Loadable Modules
• System V
• • Line Printer configuration: Line Printer Service
  • vfstab files, options: The vfstab and fstab files
• System V startup model: Startup Files
• • inittab file: Understanding /etc/inittab
  • runlevels: Startup Runlevels
• systemid systemid parameter (gated): The isis Statement

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