R

R command (sendmail), Rewriting the Mail Address
r commands (Unix), Secure the r CommandsSecure the r Commands, Secure Shell
disabling, Secure Shell
security considerations, Secure the r CommandsSecure 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 FileThe Reverse Zone File
reverse-mapping zone file, Configuring named
rewrite rules (sendmail), Rewriting the Mail Address, Pattern Matching, Transforming the AddressTransforming the Address, Transforming with a database
pattern matching, Pattern Matching
transformation field, Transforming the AddressTransforming 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 routedRunning 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 routedRunning 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 ArchitectureInternet Routing Architecture, Internet Routing Architecture, Internet Routing Architecture, Getting Started, Planning RoutingPlanning 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 routedRunning 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 ArchitectureInternet Routing Architecture
planning, Planning RoutingPlanning 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 routedRunning 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 routedRunning 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 TableThe Minimal Routing Table, The Minimal Routing Table, Building a Static Routing Table, Adding Static RoutesAdding Static Routes, Routing Information Protocol, Routing Information Protocol
bit mask, The Routing Table
cache, The Routing Table
contents of, The Minimal Routing TableThe 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 RoutesAdding Static Routes
adding routes, Adding Static RoutesAdding 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