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Index: R

R command (sendmail): 10.6. Rewriting the Mail Address

r commands (Unix)

disabling: 12.2.6. Secure Shell
security considerations: 12.2.5. Secure the r Commands

R flag (Linux routing table): 2.4. The Routing Table

RADB (Routing Arbiter Database): 2.3. Internet Routing Architecture

registering in: 4.3.2. Registering in a Routing Database

range parameter (dhcpd): 9.5.1. dhcpd.conf

D.3.2. Configuration Parameters

RARP (Reverse Address Resolution Protocol): 3.6.1. Reverse Address Resolution Protocol

RAs (Routing Arbiters): 2.3. Internet Routing Architecture

raw field (inet.conf file): 5.3. The Internet Daemon

rc.local script

BSD Unix: 6.1.6.7. Putting ifconfig in the startup scripts
Linux: 5.2.1.1. Understanding /etc/inittab
routing startup scripts: 7.3.1.1. Installing static routes at startup

rc.sysinit script, Linux: 5.2.1.1. Understanding /etc/inittab

rdist command: 9.6.2. rdist

re-transmission: 1.6.2. Transmission Control Protocol

reachability information

autonomous systems: 2.3. Internet Routing Architecture
EGP: 7.5.1. Exterior Gateway Protocol
exterior routing protocols: 7.5. Exterior Routing Protocols

read access (filesystems): 9.1.2.1. The share command

ReadmeName directive (Apache): 11.3.5. Creating a Fancy Index

receive option (pppd): A.2. The PPP Daemon

Recipient field (sendmail): 10.5.8. Defining Mailers

recommended protocols: 1.1.2. Protocol Standards

reconfigure file (Solaris): 5.1.1. Using Dynamically Loadable Modules

record option (pppd): A.2. The PPP Daemon

RECORD option (xinetd): 12.5.2. Controlling Access with xinetd

recursion option (named): C.2.5. The options Statement

recursive-clients (named): C.2.5.1. The BIND 9 options statement

recursive searches (DNS): 3.3.2. Creating Domains and Subdomains

recursive servers (DNS): 3.3.2. Creating Domains and Subdomains

recv (gated): B.4. Trace Statements

recvbuffer parameter (gated): B.8.4. The bgp Statement

Red Hat Linux

caching-only servers, configuring: 8.3.1.1. A caching-only server configuration
DSO modules: 11.3.1. Loading Dynamic Shared Objects
Ethernet device drivers: 5.1.1. Using Dynamically Loadable Modules
httpd.conf file, location: 11.2. Configuring the Apache Server
named command, running: 8.3.8. Controlling the named Process
NIS domains: 9.4. Network Information Service
printcap configuration tool: 9.2.1.1. The printcap file
sendmail, startup script: 10.2. Running sendmail as a Daemon
updating: 12.3.2. Keep Software Updated

Redirect Message (ICMP): 1.5.2. Internet Control Message Protocol

2.4. The Routing Table

redirect parameter (gated): B.8.8. The icmp Statement

B.8.10. The kernel Statement

redirect statement (gated): B.8.7. The redirect Statement

redirection, routing: 7.3.1. Adding Static Routes

Ref field (Linux routing table): 2.4. The Routing Table

2.4. The Routing Table

refuse-chap option (pppd): A.2. The PPP Daemon

refuse-pap option (pppd): A.2. The PPP Daemon

regex (sendmail K command value): E.4.5. The sendmail K Command

Regional Internet Registries (IRs), address requests: 4.2.1.1. Obtaining an official network address

registered hosts: 3.2. The Host Table

registries, addresses, obtaining from: 4.2.1.1. Obtaining an official network address

reject (gated): B.6. Interface Statements

reject parameter (gated): B.9. static Statements

relay mailer: 10.4.1.1. Building a sendmail.cf with m4 macros

RELAY_DOMAIN (sendmail macro): E.3. m4 sendmail Macros

E.3.4. DOMAIN

RELAY_DOMAIN_FILE (sendmail macro): E.3. m4 sendmail Macros

E.3.4. DOMAIN

reliability

address translation: 4.2.1. Obtaining an IP Address
interface configuration methods: 6.1.3. Assigning an Address
TCP: 1.6.2. Transmission Control Protocol

remnantholdtime parameter (gated): B.8.10. The kernel Statement

remnants parameter (gated): B.8.10. The kernel Statement

Remote File Distribution Program: 9.6.2. rdist

Remote Procedure Calls (see RPCs)

remotename option (pppd): A.2. The PPP Daemon

replace (gated): B.4. Trace Statements

REPORT keyword (chat): A.3. chat

request parameter (gated): B.8.10. The kernel Statement

Requests for Comments (see RFCs)

require-chap option (pppd): A.2. The PPP Daemon

Require directive (Apache): 11.4.4.1. Requiring user authentication

require-pap option (pppd): A.2. The PPP Daemon

required protocols: 1.1.2. Protocol Standards

Reseaux IP Europeens (see RIPE)

reserved addresses: 2.2. The IP Address

reset command (dip): 6.3.2. Dial-Up PPP

A.1.1. The dip Script File

resolv.conf file: 8.1.1. BIND Configurations

8.2. Configuring the Resolver
entries: 8.2.1. The Resolver Configuration File
sample configuration: 8.2.1. The Resolver Configuration File

resolver code: 3.3.4. BIND, Resolvers, and named

resolver-only configurations: 3.3.4. BIND, Resolvers, and named

resolver software (name service): 3.3.4. BIND, Resolvers, and named

resolvers: 8.1.1. BIND Configurations

configuring: 8.2. Configuring the Resolver

8.2. Configuring the Resolver
8.2.1.1. A resolver-only configuration

sample configuration: 8.2.1.1. A resolver-only configuration

resource records: C.3.1. Standard Resource Records

DNS: 8.3.2. Standard Resource Records

resources, security: 12.8. Words to the Wise

Responsible Person (RP) records: C.3.1.7. Responsible Person record

restrict parameter (gated): B.11. Aggregate Statements

retain parameter (gated): B.9. static Statements

RETR command (POP): 3.4.2. Post Office Protocol

retrans= option (vfstab file): 9.1.3.2. The vfstab and fstab files

retry= option (vfstab file): 9.1.3.2. The vfstab and fstab files

RETURN keyword (iptables command): 12.7.2.1. Defining iptables filter rules

Reverse Address Resolution Protocol (RARP): 3.6.1. Reverse Address Resolution Protocol

reverse domains: 4.2.1.2. Obtaining an IN-ADDR.ARPA domain

reverse-mapping zone file: 8.3. Configuring named

reverse zone file: 8.3.6. The Reverse Zone File

rewrite rules (sendmail): 10.6. Rewriting the Mail Address

pattern matching: 10.6.1. Pattern Matching
transformation field: 10.6.2. Transforming the Address
transformation with database: 10.6.2.1. Transforming with a database

Rewriting Rules (generic-linux.cf section): 10.4.2. General sendmail.cf Structure

RFC 1918: 4.2.1. Obtaining an IP Address

rfc822 (MIME data subtype): 3.4.4. Multipurpose Internet Mail Extensions

rfc2308-type1 option (named): C.2.5. The options Statement

RFCs (Requests for Comments)

Network Access Layer: 1.4. Network Access Layer
obtaining on Web: Appendix g.4. Retrieving RFCs
obtaining through email: Appendix g.4.1. Retrieving RFCs by Mail
protocol development: 1.1.2. Protocol Standards
subnet masks: 2.2.2. Subnets

rhosts file, security considerations: 12.2.5. Secure the r Commands

12.4.2. Looking for Trouble

ribs unicast parameter (gated): B.8.3. The isis Statement

richtext text (MIME data subtype): 3.4.4. Multipurpose Internet Mail Extensions

RIP-2: 7.4.2. RIP Version 2

RIP (Routing Information Protocol): 2.4. The Routing Table

7.4.1. Routing Information Protocol
ifconfig command and: 6.1.6.4. Metric
limitations: 7.4.1.1. Running RIP with routed
overview: 7.4. Interior Routing Protocols
routed command: 7.4.1.1. Running RIP with routed

rip statement (gated): B.8.2. The rip Statement

RIPE-181 standard: 2.3. Internet Routing Architecture

RIPE Network Control Center: 2.3. Internet Routing Architecture

RIPE (Reseaux IP Europeens): 2.3. Internet Routing Architecture

database fields: 4.2.1.2. Obtaining an IN-ADDR.ARPA domain

rmmod command (Linux): 5.1.1. Using Dynamically Loadable Modules

ro option

exports file: 9.1.2.2. The /etc/exports file
share command: 9.1.2.1. The share command

root access

preventing, exports file: 9.1.2.2. The /etc/exports file
share command and: 9.1.2.1. The share command

root domain (DNS): 3.3.1. The Domain Hierarchy

root hints file: 8.3. Configuring named

root servers

cache initialization files: 8.3.4. The Cache Initialization File
DNS: 3.3.1. The Domain Hierarchy

root_squash setting (exports file): 9.1.2.2. The /etc/exports file

rotate option (resolv.conf file): 8.2.1. The Resolver Configuration File

route command: 7.3. Building a Static Routing Table

route filters: 7.7.1.3. Exterior gateway configuration

route (gated): B.4. Trace Statements

routed command: 7.4.1. Routing Information Protocol

gateways file: 7.4.1.1. Running RIP with routed
implementing: 7.4.1.1. Running RIP with routed

routerdiscovery parameter (gated): B.8.8. The icmp Statement

B.8.9. The routerdiscovery Statement
B.8.9.1. The routerdiscovery client statement

routerid (gated): B.7. Definition Statements

routers

filtering: 12.7.2. Filtering Traffic with iptables

iptables command: 12.7.2.1. Defining iptables filter rules

interconnecting dissimilar physical networks: 4.2.3. Defining the Subnet Mask

multicast addresses: 2.2. The IP Address

routes parameter (gated): B.8.10. The kernel Statement

B.8.10. The kernel Statement

routing: 7.1. Common Routing Configurations

7.6.1. gated's Preference Value

bilateral agreements: 2.3. Internet Routing Architecture

classful: 7.4.1.1. Running RIP with routed

common configurations: 7.1. Common Routing Configurations

consolidated: 2.2.4. CIDR Blocks and Route Aggregation

data delivery: 2.1. Addressing, Routing, and Multiplexing

databases, registering: 4.3.2. Registering in a Routing Database

datagrams: 1.5.1.2. Routing datagrams

distance-vector algorithms: 7.4. Interior Routing Protocols

domains: 2.3. Internet Routing Architecture

filters, gated and: B.10. Control Statements

gated: 7.6. Gateway Routing Daemon

Internet architecture: 2.3. Internet Routing Architecture

planning: 4.3. Planning Routing

poison reverse: 7.4.1.1. Running RIP with routed

policies, AS path: B.10. Control Statements

protocols: 7.1. Common Routing Configurations

BGP: 7.5.2. Border Gateway Protocol
EGP: 7.5.1. Exterior Gateway Protocol
exterior: 7.5. Exterior Routing Protocols
interior: 7.4. Interior Routing Protocols
OSPF: 7.4.3. Open Shortest Path First
RIP: 7.4.1. Routing Information Protocol
RIP-2: 7.4.2. RIP Version 2
routed command: 7.4.1.1. Running RIP with routed
selecting: 7.5.3. Choosing a Routing Protocol
system configuration and: 4. Getting Started

redirection: 7.3.1. Adding Static Routes

slow convergence problem: 7.4.1.1. Running RIP with routed

split horizon: 7.4.1.1. Running RIP with routed

triggered updates: 7.4.1.1. Running RIP with routed

troubleshooting: 13.5. Checking Routing

traceroute command: 13.5.1. Tracing Routes

Routing Arbiter Database (see RADB)

4.3.2. Registering in a Routing Database

Routing Arbiters (RAs): 2.3. Internet Routing Architecture

Routing Information Protocol (see RIP)

6.1.6.4. Metric

routing tables: 2.4. The Routing Table

bit mask: 2.4. The Routing Table

cache: 2.4. The Routing Table

contents of: 7.2. The Minimal Routing Table

default gateways: 2.4. The Routing Table

deleting routes, RIP: 7.4.1. Routing Information Protocol

destination values: 2.4. The Routing Table

dynamic: 4.3. Planning Routing

end-to-end routes: 2.4. The Routing Table

informational fields: 2.4. The Routing Table

Linux: 2.4. The Routing Table

loopback route: 2.4. The Routing Table

metric, changing with ifconfig command: 6.1.6.4. Metric

ping command: 7.2. The Minimal Routing Table

reducing size of: 2.2.4. CIDR Blocks and Route Aggregation

routd command: 7.4.1. Routing Information Protocol

Solaris: 2.4. The Routing Table

static: 4.3. Planning Routing

adding routes: 7.3.1. Adding Static Routes
creating: 7.3. Building a Static Routing Table

routing updates (RIP): 7.4.1. Routing Information Protocol

RP (Responsible Person) records: C.3.1.7. Responsible Person record

RPCs (Remote Procedure Calls), port numbers: 2.6.2. Port Numbers

rquotad command: 9.1.1. NFS Daemons

rrset-order option (named): C.2.5. The options Statement

RS232C connectors: 1.2. A Data Communications Model

rsize= option (vfstab file): 9.1.3.2. The vfstab and fstab files

rulesets (sendmail): 10.6.3. The Set Ruleset Command

runlevel field (inittab file): 5.2.1.1. Understanding /etc/inittab

runlevels

inittab file: 5.2.1.1. Understanding /etc/inittab
System V startup: 5.2.1. Startup Runlevels

RUNNING flag (ifconfig command): 6.1.2. Checking the Interface with ifconfig

rw option

exports file: 9.1.2.2. The /etc/exports file
share command: 9.1.2.1. The share command

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