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Index: N

name service : (see DNS)

named programs, DNS : 8.10.5.2. Set up a real DNS server on an internal system for internal hosts to use

NCSA Mosaic : 2.5. The World Wide Web

nested IP over IP : 6.3.3.5. IP over IP

netacl program : 5.8.3.2. Using netacl to protect services

Netscape Navigator : 2.5. The World Wide Web

network

access layer, TCP/IP : C.4. Network Access Layer

architecture : (see firewalls, architecture of)

checking connectivity of : (see ping program)

disconnecting, after incident

13.1.2. Disconnect or Shut Down, as Appropriate
13.4.3. Planning for Disconnecting or Shutting Down Machines

encryption : 10.5. Network-Level Encryption

File System : (see NFS)

filesystems : 2.12. Network File Systems

functions, SOCKS version of : 7.6. Using SOCKS for Proxying

insecure : 4.4.2. Insecure Networks

joint : 4.4.4. Joint Venture Firewalls

lab/test : 4.4.1. Laboratory Networks

location of bastion host on : 5.5. Locating the Bastion Host on the Network

management services : 2.10. Network Management Services

configuring : 8.12. Network Management Services

monitoring automatically : 5.9.2. Consider Writing Software to Automate Monitoring

perimeter

4.1. Some Firewall Definitions
4.2.3.1. Perimeter network

protecting internally : 4.4. Internal Firewalls

security : (see security)

taps : 1.2.1.3. Information Theft

Time Protocol : (see NTP)

transferring information across : (see packets, filtering)

Network Information Service : (see NIS/YP)

network news : 2.4. Usenet News

Network News Transfer Protocol : (see NNTP)

network unreachable codes : (see ICMP)

news : (see NNTP)

newsgroups : 2.4. Usenet News

keeping current : 12.3.1.2. Newsgroups
security resources via : A.4. Newsgroups

next hop : C.11. The Routing Table

NFS (Network File System) : 2.12. Network File Systems

configuring : 8.14. Network File System (NFS)
exporting news via : 8.5.3.3. Exporting news to clients via NFS
services of : 5.8.2.4. Which services should you disable?

NIS+ : 8.15. Network Information Service/Yellow Pages (NIS/YP)

NIS/YP (Network Information Service)

2.9. Name Service
5.8.2.4. Which services should you disable?
8.10. Domain Name System (DNS)
configuring : 8.15. Network Information Service/Yellow Pages (NIS/YP)

NIST CSRC (Computer Security Resource Clearinghouse) : A.5.3. NIST CSRC

NNTP (Network News Transfer Protocol)

2.4. Usenet News

7.5. Proxying Without a Proxy Server

configuring : 8.5. Network News Transfer Protocol (NNTP)

in screened host architecture : 9.2.1.4. NNTP
in screened subnet architecture : 9.1.1.4. NNTP

nonrouting dual-homed hosts

5.2.1. Nonrouting Dual-homed Hosts
5.8.2.5. Turning off routing

notifying people about problems

13.1.4. Make `Incident in Progress' Notifications
13.4.4. Planning for Notification of People Who Need to Know

NTP (Network Time Protocol)

2.11. Time Service
7.5. Proxying Without a Proxy Server
configuring : 8.13. Network Time Protocol (NTP)

numbers, port : C.12.2. Port Numbers

numbers, protocol : C.12.1. Protocol Numbers

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