R
- R command (sendmail), Rewriting the Mail Address
- r commands (Unix), Secure the r Commands–Secure the r Commands, Secure Shell
- disabling, Secure Shell
- security considerations, Secure the r Commands–Secure the r Commands
- R flag (Linux routing table), The Routing Table
- RADB (Routing Arbiter Database), Internet Routing Architecture, Registering in a Routing Database
- registering in, Registering in a Routing Database
- range parameter (dhcpd), dhcpd.conf, Configuration Parameters
- RARP (Reverse Address Resolution Protocol), Reverse Address Resolution Protocol
- RAs (Routing Arbiters), Internet Routing Architecture
- raw field (inet.conf file), The Internet Daemon
- rc.local script, Understanding /etc/inittab, Putting ifconfig in the startup scripts, Installing static routes at startup
- BSD Unix, Putting ifconfig in the startup scripts
- Linux, Understanding /etc/inittab
- routing startup scripts, Installing static routes at startup
- rc.sysinit script, Linux, Understanding /etc/inittab
- rdist command, rdist
- re-transmission, Transmission Control Protocol
- reachability information, Internet Routing Architecture, Exterior Routing Protocols, Exterior Gateway Protocol
- autonomous systems, Internet Routing Architecture
- EGP, Exterior Gateway Protocol
- exterior routing protocols, Exterior Routing Protocols
- read access (filesystems), The share command
- ReadmeName directive (Apache), Creating a Fancy Index
- receive option (pppd), The PPP Daemon
- Recipient field (sendmail), Defining Mailers
- recommended protocols, Protocol Standards
- reconfigure file (Solaris), Using Dynamically Loadable Modules
- record option (pppd), The PPP Daemon
- RECORD option (xinetd), Controlling Access with xinetd
- recursion option (named), The options Statement
- recursive searches (DNS), Creating Domains and Subdomains
- recursive servers (DNS), Creating Domains and Subdomains
- recursive-clients (named), The BIND 9 options statement
- recv (gated), Trace Statements
- recvbuffer parameter (gated), The bgp Statement
- Red Hat Linux, Using Dynamically Loadable Modules, A caching-only server configuration, Controlling the named Process, The printcap file, Network Information Service, Running sendmail as a Daemon, Configuring the Apache Server, Loading Dynamic Shared Objects, Keep Software Updated
- caching-only servers, configuring, A caching-only server configuration
- DSO modules, Loading Dynamic Shared Objects
- Ethernet device drivers, Using Dynamically Loadable Modules
- httpd.conf file, location, Configuring the Apache Server
- named command, running, Controlling the named Process
- NIS domains, Network Information Service
- printcap configuration tool, The printcap file
- sendmail, startup script, Running sendmail as a Daemon
- updating, Keep Software Updated
- Redirect Message (ICMP), Internet Control Message Protocol, The Routing Table
- redirect parameter (gated), The icmp Statement, The kernel Statement
- redirect statement (gated), The redirect Statement
- redirection, routing, Adding Static Routes
- Ref field (Linux routing table), The Routing Table, The Routing Table
- refuse-chap option (pppd), The PPP Daemon
- refuse-pap option (pppd), The PPP Daemon
- regex (sendmail K command value), The sendmail K Command
- Regional Internet Registries (IRs), address
requests, Obtaining an official network address
- registered hosts, The Host Table
- registries, addresses, obtaining from, Obtaining an official network address
- reject (gated), Interface Statements
- reject parameter (gated), static Statements
- relay mailer, Building a sendmail.cf with m4 macros
- RELAY_DOMAIN (sendmail macro), m4 sendmail Macros, DOMAIN
- RELAY_DOMAIN_FILE (sendmail macro), m4 sendmail Macros, DOMAIN
- reliability, Transmission Control Protocol, Obtaining an IP Address, Assigning an Address
- address translation, Obtaining an IP Address
- interface configuration methods, Assigning an Address
- TCP, Transmission Control Protocol
- remnantholdtime parameter (gated), The kernel Statement
- remnants parameter (gated), The kernel Statement
- Remote File Distribution Program, rdist
- Remote Procedure Calls, Port Numbers (see RPCs)
- remotename option (pppd), The PPP Daemon
- replace (gated), Trace Statements
- REPORT keyword (chat), chat
- request parameter (gated), The kernel Statement
- Requests for Comments, Protocol Standards (see RFCs)
- Require directive (Apache), Requiring user authentication
- require-chap option (pppd), The PPP Daemon
- require-pap option (pppd), The PPP Daemon
- required protocols, Protocol Standards
- Reseaux IP Europeens, Internet Routing Architecture (see RIPE)
- reserved addresses, The IP Address
- reset command (dip), Dial-Up PPP, The dip Script File
- resolv.conf file, BIND Configurations, Configuring the Resolver, The Resolver Configuration File, The Resolver Configuration File
- entries, The Resolver Configuration File
- sample configuration, The Resolver Configuration File
- resolver code, BIND, Resolvers, and named
- resolver software (name service), BIND, Resolvers, and named
- resolver-only configurations, BIND, Resolvers, and named
- resolvers, BIND Configurations, Configuring the Resolver, Configuring the Resolver, A resolver-only configuration, A resolver-only configuration
- configuring, Configuring the Resolver, Configuring the Resolver, A resolver-only configuration
- sample configuration, A resolver-only configuration
- resource records, Standard Resource Records, Standard Resource Records
- DNS, Standard Resource Records
- resources, security, Words to the Wise
- Responsible Person (RP) records, Responsible Person record
- restrict parameter (gated), Aggregate Statements
- retain parameter (gated), static Statements
- RETR command (POP), Post Office Protocol
- retrans= option (vfstab file), The vfstab and fstab files
- retry= option (vfstab file), The vfstab and fstab files
- RETURN keyword (iptables command), Defining iptables filter rules
- Reverse Address Resolution Protocol (RARP), Reverse Address Resolution Protocol
- reverse domains, Obtaining an IN-ADDR.ARPA domain
- reverse zone file, The Reverse Zone File–The Reverse Zone File
- reverse-mapping zone file, Configuring named
- rewrite rules (sendmail), Rewriting the Mail Address, Pattern Matching, Transforming the Address–Transforming the Address, Transforming with a database
- pattern matching, Pattern Matching
- transformation field, Transforming the Address–Transforming the Address
- transformation with database, Transforming with a database
- Rewriting Rules (generic-linux.cf section), General sendmail.cf Structure
- RFC 1033, BIND: Unix Name Service, Standard Resource Records, Standard Resource Records
- RFC 1035, dig: An Alternative to nslookup
- RFC 1055, The Serial Protocols
- RFC 1172, The Serial Protocols
- RFC 1281, Writing a Security Policy, Words to the Wise
- RFC 1470, Diagnostic Tools
- RFC 1521, Multipurpose Internet Mail Extensions
- RFC 1661, The Serial Protocols
- RFC 1812, Subnets
- RFC 1869, Multipurpose Internet Mail Extensions
- RFC 1878, Subnets
- RFC 1918, Obtaining an IP Address
- RFC 2050, Obtaining an official network address
- RFC 2060, Internet Message Access Protocol
- RFC 2196, Assessing the Threat, Words to the Wise
- RFC 2901, Obtaining an official network address
- RFC 791, Names and Addresses, IP Datagram Header
- RFC 792, ICMP Parameter Problem Message Header
- RFC 793, TCP Segment Header
- RFC 821, Simple Mail Transfer Protocol
- RFC 822, Multipurpose Internet Mail Extensions
- RFC 826, Network Access Layer
- RFC 894, Network Access Layer
- RFC 919, Setting the Broadcast Address
- rfc2308-type1 option (named), The options Statement
- rfc822 (MIME data subtype), Multipurpose Internet Mail Extensions
- RFCs (Requests for Comments), Protocol Standards, Network Access Layer, Subnets, Retrieving RFCs, Retrieving RFCs by Mail
- Network Access Layer, Network Access Layer
- obtaining on Web, Retrieving RFCs
- obtaining through email, Retrieving RFCs by Mail
- protocol development, Protocol Standards
- subnet masks, Subnets
- rhosts file, security considerations, Secure the r Commands, Looking for Trouble
- ribs unicast parameter (gated), The isis Statement
- richtext text (MIME data subtype), Multipurpose Internet Mail Extensions
- RIP (Routing Information Protocol), The Routing Table, Metric, Interior Routing Protocols, Routing Information Protocol, Running RIP with routed–Running RIP with routed, Running RIP with routed
- ifconfig command and, Metric
- limitations, Running RIP with routed
- overview, Interior Routing Protocols
- routed command, Running RIP with routed–Running RIP with routed
- rip statement (gated), The rip Statement
- RIP-2, RIP Version 2
- RIPE (Reseaux IP Europeens), Internet Routing Architecture, Obtaining an IN-ADDR.ARPA domain
- database fields, Obtaining an IN-ADDR.ARPA domain
- RIPE Network Control Center, Internet Routing Architecture
- RIPE-181 standard, Internet Routing Architecture
- rmmod command (Linux), Using Dynamically Loadable Modules
- ro option, The share command, The /etc/exports file
- exports file, The /etc/exports file
- share command, The share command
- root access, The share command, The /etc/exports file
- preventing, exports file, The /etc/exports file
- share command and, The share command
- root domain (DNS), The Domain Hierarchy
- root hints file, Configuring named
- root servers, The Domain Hierarchy, The Cache Initialization File
- cache initialization files, The Cache Initialization File
- DNS, The Domain Hierarchy
- root_squash setting (exports file), The /etc/exports file
- rotate option (resolv.conf file), The Resolver Configuration File
- route (gated), Trace Statements
- route command, Building a Static Routing Table
- route filters, Exterior gateway configuration
- routed command, Routing Information Protocol, Running RIP with routed, Running RIP with routed
- gateways file, Running RIP with routed
- implementing, Running RIP with routed
- routerdiscovery parameter (gated), The icmp Statement, The routerdiscovery Statement, The routerdiscovery client statement
- routerid (gated), Definition Statements
- routers, The IP Address, Defining the Subnet Mask, Filtering Traffic with iptables, Defining iptables filter rules
- filtering, Filtering Traffic with iptables, Defining iptables filter rules
- iptables command, Defining iptables filter rules
- interconnecting dissimilar physical
networks, Defining the Subnet Mask
- multicast addresses, The IP Address
- routes parameter (gated), The kernel Statement, The kernel Statement
- routing, Routing datagrams, Addressing, Routing, and Multiplexing, CIDR Blocks and Route Aggregation, Internet Routing Architecture–Internet Routing Architecture, Internet Routing Architecture, Internet Routing Architecture, Getting Started, Planning Routing–Planning Routing, Registering in a Routing Database, Common Routing Configurations, Common Routing Configurations, Common Routing Configurations, Adding Static Routes, Interior Routing Protocols, Interior Routing Protocols, Routing Information Protocol, Running RIP with routed–Running RIP with routed, Running RIP with routed, Running RIP with routed, Running RIP with routed, Running RIP with routed, Running RIP with routed, RIP Version 2, Open Shortest Path First, Exterior Routing Protocols, Exterior Gateway Protocol, Border Gateway Protocol, Choosing a Routing Protocol, Gateway Routing Daemon, gated’s Preference Value, Checking Routing, Tracing Routes, Control Statements, Control Statements
- bilateral agreements, Internet Routing Architecture
- classful, Running RIP with routed
- common configurations, Common Routing Configurations
- consolidated, CIDR Blocks and Route Aggregation
- data delivery, Addressing, Routing, and Multiplexing
- databases, registering, Registering in a Routing Database
- datagrams, Routing datagrams
- distance-vector algorithms, Interior Routing Protocols
- domains, Internet Routing Architecture
- filters, gated and, Control Statements
- gated, Gateway Routing Daemon
- Internet architecture, Internet Routing Architecture–Internet Routing Architecture
- planning, Planning Routing–Planning Routing
- poison reverse, Running RIP with routed
- policies, AS path, Control Statements
- protocols, Getting Started, Common Routing Configurations, Interior Routing Protocols, Routing Information Protocol, Running RIP with routed–Running RIP with routed, RIP Version 2, Open Shortest Path First, Exterior Routing Protocols, Exterior Gateway Protocol, Border Gateway Protocol, Choosing a Routing Protocol
- BGP, Border Gateway Protocol
- EGP, Exterior Gateway Protocol
- exterior, Exterior Routing Protocols
- interior, Interior Routing Protocols
- OSPF, Open Shortest Path First
- RIP, Routing Information Protocol
- RIP-2, RIP Version 2
- routed command, Running RIP with routed–Running RIP with routed
- selecting, Choosing a Routing Protocol
- system configuration and, Getting Started
- redirection, Adding Static Routes
- slow convergence problem, Running RIP with routed
- split horizon, Running RIP with routed
- triggered updates, Running RIP with routed
- troubleshooting, Checking Routing, Tracing Routes
- traceroute command, Tracing Routes
- Routing Arbiter Database, Internet Routing Architecture, Registering in a Routing Database (see RADB)
- Routing Arbiters (RAs), Internet Routing Architecture
- Routing Information Protocol, The Routing Table, Metric (see RIP)
- routing tables, CIDR Blocks and Route Aggregation, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, The Routing Table, Planning Routing, Planning Routing, Metric, The Minimal Routing Table–The Minimal Routing Table, The Minimal Routing Table, Building a Static Routing Table, Adding Static Routes–Adding Static Routes, Routing Information Protocol, Routing Information Protocol
- bit mask, The Routing Table
- cache, The Routing Table
- contents of, The Minimal Routing Table–The Minimal Routing Table
- default gateways, The Routing Table
- deleting routes, RIP, Routing Information Protocol
- destination values, The Routing Table
- dynamic, Planning Routing
- end-to-end routes, The Routing Table
- informational fields, The Routing Table
- Linux, The Routing Table
- loopback route, The Routing Table
- metric, changing with ifconfig command, Metric
- ping command, The Minimal Routing Table
- reducing size of, CIDR Blocks and Route Aggregation
- routd command, Routing Information Protocol
- Solaris, The Routing Table
- static, Planning Routing, Building a Static Routing Table, Adding Static Routes–Adding Static Routes
- adding routes, Adding Static Routes–Adding Static Routes
- creating, Building a Static Routing Table
- routing updates (RIP), Routing Information Protocol
- RP (Responsible Person) records, Responsible Person record
- RPCs (Remote Procedure Calls), port numbers, Port Numbers
- rquotad command, NFS Daemons
- rrset-order option (named), The options Statement
- RS232C connectors, A Data Communications Model
- rsize= option (vfstab file), The vfstab and fstab files
- rulesets (sendmail), The Set Ruleset Command
- runlevel field (inittab file), Understanding /etc/inittab
- runlevels, Startup Runlevels, Understanding /etc/inittab
- inittab file, Understanding /etc/inittab
- System V startup, Startup Runlevels
- RUNNING flag (ifconfig command), Checking the Interface with ifconfig
- rw option, The share command, The /etc/exports file
- exports file, The /etc/exports file
- share command, The share command