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Index: O

-o option (exportfs command): 9.1.2.3. The exportfs command (TCP/IP Network Administration)

O command (sendmail): 10.5.4. Setting Options (TCP/IP Network Administration)

object identifiers (SNMP) (see OIDs)

object IDs (see OIDs)

Object Tool Command Language (see also OCL): 9.2.2. ns and nam (Network Troubleshooting Tools)

object trees (see MIBs, subtrees)

ObjectName registry key: 12.4.1.1. Registry keys (Building Internet Firewalls)

objects

definitions in OIDs: 7.2.1.5. snmptranslate (Network Troubleshooting Tools)

examining MIBs in tkined: 7.2.3.3. Examining MIBs (Network Troubleshooting Tools)

in MIBs: 7.1. Overview of SNMP (Network Troubleshooting Tools)

monitoring with tkined: 7.2.3.4. Monitoring SNMP objects (Network Troubleshooting Tools)

object descriptors: 7.1. Overview of SNMP (Network Troubleshooting Tools)

retrieving with scotty: 7.2.2. scotty (Network Troubleshooting Tools)

SNMP objects: 7.1. Overview of SNMP (Network Troubleshooting Tools)

tables of: 7.2.1.3. snmpgetnext, snmpwalk, and snmptable (Network Troubleshooting Tools)

OCL (Object Tool Command Language): 9.2.2. ns and nam (Network Troubleshooting Tools)

octal values, configuration files: 5.4.3.1. Port number and network interface (SSH, The Secure Shell)

octet data, MIME encoding: 3.4.4. Multipurpose Internet Mail Extensions (TCP/IP Network Administration)

octet-stream (MIME data subtype): 3.4.4. Multipurpose Internet Mail Extensions (TCP/IP Network Administration)

octets: 2.6.6. Mapping Addresses to Names (DNS and Bind)

A.1. Master File Format (DNS and Bind)

compressing domain names: 15.2.3. Domain Name Compression (DNS and Bind)

data transmission order and: A.2.5. Data Transmission Order (DNS and Bind)

inbound and outbound: 9.1.1.1. RMON configuration (Essential SNMP)

MIB-II information: 1.4. The Structure of Management Information and MIBS (Essential SNMP)

resource record data and: A.3.1. Data Format (DNS and Bind)

subnetting on/off octet boundaries: 9.5.1. Subnetting on an Octet Boundary (DNS and Bind)

od analysis tool: 5.4.2.3. Controlling what's displayed (Network Troubleshooting Tools)

ODBC (Open Database Connectivity): and Java Database Connectivity ( JDBC) (Building Internet Firewalls) 23.1.2. Open Database Connectivity (ODBC)

Oerrs field (netstat command): 6.1.1. The Interface Name (TCP/IP Network Administration)

Oetiker, Tobias: 13.1. Using MRTG (Essential SNMP)

O_EXCL flag, file locks and: 11.1. What is file locking? (Managing NFS and NIS)

off-site name server: 8.1. How Many Name Servers? (DNS and Bind)

official Internet addresses, assessing need for: 4.2.1.1. Obtaining an official network address (TCP/IP Network Administration)

offsets in packet headers: 5.4.2.4.3. Packet characteristics. (Network Troubleshooting Tools)

OIDs (object identifiers)

2.3. The Structure of Management Information (Essential SNMP)

appending instance numbers to: 8.2. Retrieving Multiple MIB Values (Essential SNMP)

base OIDs, mib-2: 2.5. A Closer Look at MIB-II (Essential SNMP)

contents: 7.1. Overview of SNMP (Network Troubleshooting Tools)

defining: 2.3.2. Defining OIDs (Essential SNMP)

11.2.1. Extensibility for Unix and Windows NT (Essential SNMP)

display options in SNMP: 7.2.1.2. Configuration and options (Network Troubleshooting Tools)

errors in searches: 2.6.5. get, get-next, get-bulk, and set Error Responses (Essential SNMP)

finding in MIBs: C.2. Common Command-Line Arguments (Essential SNMP)

labeling in output: 9.2.2. OpenView Graphing (Essential SNMP)

naming: 2.3.1. Naming OIDs (Essential SNMP)

mrtg usage of: 8.4.1.1. mrtg configuration file (Network Troubleshooting Tools)

object descriptors for: 7.1. Overview of SNMP (Network Troubleshooting Tools)

printing with Net-SNMP: C.2. Common Command-Line Arguments (Essential SNMP)

retrieving in Perl: 8.1. Retrieving a Single MIB Value (Essential SNMP)

8.2. Retrieving Multiple MIB Values (Essential SNMP)

syntax: 7.2.1.1. snmpget (Network Troubleshooting Tools)

translating names and numbers: 7.2.1.5. snmptranslate (Network Troubleshooting Tools)

SMIv1 datatype: 2.3.2. Defining OIDs (Essential SNMP)

SMIv2 extensions: 2.4. Extensions to the SMI in Version 2 (Essential SNMP)

textual names: C.3.15. snmptranslate (Essential SNMP)

(Essential SNMP) E.1.3. snmpLoad_OID_Cache( )

tracking changes to: C.3.7. snmpdelta (Essential SNMP)

variable bindings: 2.6.1. The get Operation (Essential SNMP)

in xnmgraph: 9.2.2. OpenView Graphing (Essential SNMP)

B.1. Using External Data (Essential SNMP)

Okhapkin's SSH1: 13.3. Table of Products (SSH, The Secure Shell)

14. SSH1 Port by Sergey Okhapkin (Windows) (SSH, The Secure Shell)

agents, lack of: 14.2. Client Use (SSH, The Secure Shell)

autoexec.bat, modifying: 14.1.2. Prepare autoexec.bat (SSH, The Secure Shell)

bzip2: 14.1. Obtaining and Installing Clients (SSH, The Secure Shell)

installing: 14.1.5. Install bzip2 (SSH, The Secure Shell)

configuration: 14.2. Client Use (SSH, The Secure Shell)

Cygwin, installing: 14.1.4. Install Cygwin (SSH, The Secure Shell)

host keys: 14.1.8. Log into a Remote Host with ssh1 (SSH, The Secure Shell)

generating: 14.3.5. Generate Host Key (SSH, The Secure Shell)

installing: 14.1. Obtaining and Installing Clients (SSH, The Secure Shell)

"w command not found error: 14.1.7. Create a Key Pair (SSH, The Secure Shell)

keys, generating: 14.1.7. Create a Key Pair (SSH, The Secure Shell)

NT Resource Kit, needed programs for server: 14.3.2. Obtain the NT Resource Kit (SSH, The Secure Shell)

passwd file: 14.1.3. Create a Password File (SSH, The Secure Shell)

"You don't exist, go away" message: 14.4. Troubleshooting (SSH, The Secure Shell)

remote host, logging in: 14.1.8. Log into a Remote Host with ssh1 (SSH, The Secure Shell)

scp1: 14.1.9. Copy Files Securely with scp1 (SSH, The Secure Shell)

server

installing: 14.3.4. Install the Server (SSH, The Secure Shell)

invoking: 14.3.7. Run the Server (SSH, The Secure Shell)

terminating: 14.3.9. Terminate the Server (SSH, The Secure Shell)

serverwide configuration: 14.3.6. Edit sshd_config (SSH, The Secure Shell)

SSH directories, creating on C\:\\\\drive: 14.1.1. Prepare Folders (SSH, The Secure Shell)

.ssh folder, creating: 14.1.1. Prepare Folders (SSH, The Secure Shell)

14.4. Troubleshooting (SSH, The Secure Shell)

sshd: 14.3. Obtaining and Installing the Server (SSH, The Secure Shell)

and NT domains: 14.4. Troubleshooting (SSH, The Secure Shell)

tar: 14.1. Obtaining and Installing Clients (SSH, The Secure Shell)

tar files, unpacking: 14.1.6. Install Okhapkin's SSH1 (SSH, The Secure Shell)

troubleshooting: 14.4. Troubleshooting (SSH, The Secure Shell)

uncompressing: 14.1.6. Install Okhapkin's SSH1 (SSH, The Secure Shell)

on program: 2.5.1. Remote Terminal Access and Command Execution (Building Internet Firewalls)

ONBOOT (Linux configuration value): 6.1.3. Assigning an Address (TCP/IP Network Administration)

one-answer zone transfer format: 10.12.1.6. More efficient zone transfers (DNS and Bind)

one-shot forwarding: 9.2.6.1. One shot forwarding (SSH, The Secure Shell)

mimicking in SSH1, OpenSSH: 9.2.6.1. One shot forwarding (SSH, The Secure Shell)

one-time passwords: 21.3.1. One-Time Password Software (Building Internet Firewalls)

4.3.5. Compilation Flags (SSH, The Secure Shell)

12.2.3. One-Time Passwords (TCP/IP Network Administration)

OPIE: 12.2.4. OPIE (TCP/IP Network Administration)

SSH1: 3.4.2.5. One-time passwords (SSH, The Secure Shell)

systems: 5.5.1.10. S/Key authentication (SSH, The Secure Shell)

one-way hash functions: 11.1.1. One-Way Hash Functions (DNS and Bind)

12.5.2.4. One-way hash functions and MACs (Managing NFS and NIS)

ONEX command (ESMTP): 3.4.4. Multipurpose Internet Mail Extensions (TCP/IP Network Administration)

ongoing costs: 1.3.2.4. Economic considerations (Network Troubleshooting Tools)

online documentation: B.1. Sources of Information (Network Troubleshooting Tools)

only_from parameter (xinetd): 12.5.2. Controlling Access with xinetd (TCP/IP Network Administration)

ooding: 1.2.1.2. Denial of service (Building Internet Firewalls)

open( ) system call, file locking: 11.1. What is file locking? (Managing NFS and NIS)

Open Database Connectivity (ODBC): and Java Database Connectivity ( JDBC) (Building Internet Firewalls) 23.1.2. Open Database Connectivity (ODBC)

open files limit: 7.6.1. Common Syslog Messages (DNS and Bind)

14.5.3. Name Server Reports "Too Many Open Files" (DNS and Bind)

open files, listing for systems: 2.1.4. lsof (Network Troubleshooting Tools)

OPEN messages (BGP): 7.5.2. Border Gateway Protocol (TCP/IP Network Administration)

Open Network Management Systems: 6.1.2. Discovery and Mapping Tools (Network Troubleshooting Tools)

Open Shortest Path First (see OSPF)

Open Shortest Path First (OSPF): 22.2.2. Open Shortest Path First (OSPF) (Building Internet Firewalls)

open source network management tools: 6.1.2. Discovery and Mapping Tools (Network Troubleshooting Tools)

open standards protocol development: 1.1.2. Protocol Standards (TCP/IP Network Administration)

Open Systems Interconnect Reference Model (see OSI)

OpenBSD: 1.5. History of SSH (SSH, The Secure Shell)

OpenBSD project: 11.1.3. ssh (Network Troubleshooting Tools)

OpenBSD systems: 11.4.1. tripwire (Network Troubleshooting Tools)

A.1.4. FreeBSD Ports (Network Troubleshooting Tools)

openness in organizations: 1.3.2.1. Professionalism (Network Troubleshooting Tools)

OpenNMS suite: 5.2. NMS Suites (Essential SNMP)

OpenPGP: 16.1.4. S/MIME and OpenPGP (Building Internet Firewalls)

OpenPGP compliance, need for public-key host authentication: 5.5.1.6. PGP authentication (SSH, The Secure Shell)

OpenRiver (RiverSoft): 5.2. NMS Suites (Essential SNMP)

OpenSSH: 1.5. History of SSH (SSH, The Secure Shell)

4.3. OpenSSH (SSH, The Secure Shell)

authentication keywords: 5.5.1. Authentication (SSH, The Secure Shell)

compatibility with SSH-1 and SSH-2 protocols: 3.5.2.4. SSH-1 backward compatibility (SSH, The Secure Shell)

compile-time configuration: 4.3.5. Compilation Flags (SSH, The Secure Shell)

dependencies: 4.3.1. Prerequisites (SSH, The Secure Shell)

identities: 6.1.3. OpenSSH Identities (SSH, The Secure Shell)

Kerberos-4 support: 11.4.5. Kerberos-4 in OpenSSH (SSH, The Secure Shell)

Kerberos-5 Version 4 compatibility mode: 11.4.5.1. Kerberos-4 compatibility mode in Kerberos-5 (SSH, The Secure Shell)

Kerberos incompatibility with SSH1: 11.4.5.1. Kerberos-4 compatibility mode in Kerberos-5 (SSH, The Secure Shell)

Kerberos support: 4.3.5. Compilation Flags (SSH, The Secure Shell)

password authentication: 4.3.3. PAM (SSH, The Secure Shell)

protocol selection: 5.4.6. SSH Protocol Selection (SSH, The Secure Shell)

server-side problems, PAM: 12.2.2.2. Password authentication (SSH, The Secure Shell)

turning on support for Internet Protocol Version 4 (IPv4): 4.3.5. Compilation Flags (SSH, The Secure Shell)

OpenSSH project: 11.1.3. ssh (Network Troubleshooting Tools)

11.1.3. ssh (Network Troubleshooting Tools)

openssh ssh tool: A.4. Sources for Tools (Network Troubleshooting Tools)

OpenSSH/2, troubleshooting trusted-host authentication: 12.2.2.3. Trusted-host authentication (SSH, The Secure Shell)

OpenSSL: F.2.2. Configuring SNMPv3 for Net-SNMP (Essential SNMP)

4.3.1. Prerequisites (SSH, The Secure Shell)

flagging of the directory path: 4.3.5. Compilation Flags (SSH, The Secure Shell)

OpenSSL (Apache): 11.4.5. Using Encryption (TCP/IP Network Administration)

OpenView: 8.2.1. Walking the MIB Tree with OpenView (Essential SNMP)

(see also OpenView Network Node Manager)

alarm browser: 10.2.5. The Alarm Browser (Essential SNMP)

command-line interfaces: 9.2.2. OpenView Graphing (Essential SNMP)

configuring: 7.3.3. HP OpenView Agent for HP-UX and Solaris (Essential SNMP)

data collection: 9.2.3. OpenView Data Collection and Thresholds (Essential SNMP)

designing collections: 9.2.3.1. Designing collections (Essential SNMP)

disk-space checking script: 12.5. Disk-Space Checker (Essential SNMP)

events (see events)

expressions: A. Using Input and Output Octets (Essential SNMP)

extending: 11. Extensible SNMP Agents (Essential SNMP)

11.3. OpenView's Extensible Agent (Essential SNMP)

get operations: 8.1.1. Using HP OpenView to Retrieve Values (Essential SNMP)

graphical vs. command-line interface: 9.2.2. OpenView Graphing (Essential SNMP)

HP Extensible SNMP Agent: 5.1. SNMP Agents (Essential SNMP)

loading MIBs: 11.3. OpenView's Extensible Agent (Essential SNMP)

polling intervals: 6.1.3. Configuring Polling Intervals (Essential SNMP)

receiving and handling traps: 10.2.1. HP OpenView (Essential SNMP)

sending traps: 10.3.1. Sending Traps with OpenView (Essential SNMP)

set operations: 8.3. Setting a MIB Value (Essential SNMP)

tables: 11.3.1. Tables (Essential SNMP)

thresholds: 9.2.3.2. Creating a threshold (Essential SNMP)

throw core script: 12.3. Throw Core (Essential SNMP)

trap-handling daemon (ovtrapd): 10.2.1. HP OpenView (Essential SNMP)

trapd.conf file: 10.2.3. Custom Event Categories (Essential SNMP)

12.3. Throw Core (Essential SNMP)

12.5. Disk-Space Checker (Essential SNMP)

trapd.log file: 10.2.1. HP OpenView (Essential SNMP)

10.2.4. The Event Categories Display (Essential SNMP)

updating graphs: 9.2.3.2. Creating a threshold (Essential SNMP)

walk operations: 8.2.1. Walking the MIB Tree with OpenView (Essential SNMP)

web-based GUI in: 3.3. A Look Ahead (Essential SNMP)

xnmgraph: 9.2.1. Collecting and Displaying Data with OpenView (Essential SNMP)

B.1. Using External Data (Essential SNMP)

OpenView ITO: 5.2. NMS Suites (Essential SNMP)

OpenView Network Node Manager: 5.2. NMS Suites (Essential SNMP)

6.1. HP's OpenView Network Node Manager (Essential SNMP)

Actions: B.2. Adding a Menu to NNM (Essential SNMP)

adding custom menus: B.2. Adding a Menu to NNM (Essential SNMP)

directory structure: 6.1. HP's OpenView Network Node Manager (Essential SNMP)

external data: B.1. Using External Data (Essential SNMP)

filters: 6.1.5. Using OpenView Filters (Essential SNMP)

Instant-On license: 6.1. HP's OpenView Network Node Manager (Essential SNMP)

loadhosts utility: 6.1.2. The netmon Process (Essential SNMP)

loading MIBs: 6.1.6. Loading MIBs into OpenView (Essential SNMP)

maps: 6.1.1. Running NNM (Essential SNMP)

6.1.4. A Few Words About NNM Map Colors (Essential SNMP)

Menubars: B.2. Adding a Menu to NNM (Essential SNMP)

Menus: B.2. Adding a Menu to NNM (Essential SNMP)

netmon daemon process: 6.1.2. The netmon Process (Essential SNMP)

polling intervals: 6.1.3. Configuring Polling Intervals (Essential SNMP)

scripts: 6.1. HP's OpenView Network Node Manager (Essential SNMP)

sending messages with: B.4. Using NNM for Communications (Essential SNMP)

starting and running: 6.1.1. Running NNM (Essential SNMP)

user profiles: B.3. Profiles for Different Users (Essential SNMP)

operating speeds of interfaces: 8.4.1.1. mrtg configuration file (Network Troubleshooting Tools)

operating systems: 3.3. A Look Ahead (Essential SNMP)

(see also names of specific OS packages)

agents in: 1.3. Managers and Agents (Essential SNMP)

choosing: 11. Unix and Linux Bastion Hosts (Building Internet Firewalls)

12.2. Which Version of Windows NT? (Building Internet Firewalls)

for bastion host: 10.3.1. What Operating System? (Building Internet Firewalls)

fixing bugs in: 10.9.2. Fix All Known System Bugs (Building Internet Firewalls)

identifying for devices: 6.3. Device Identification (Network Troubleshooting Tools)

inconsistent or contradictory packets and: 6.3.1. Stack Fingerprinting (Network Troubleshooting Tools)

installation of: 10.9.1. Start with a Minimal Clean Operating System Installation (Building Internet Firewalls)

known behaviors: 6.3.1. Stack Fingerprinting (Network Troubleshooting Tools)

Linux (see Linux)

multiple, proxying and: 9.1. Why Proxying? (Building Internet Firewalls)

NFS daemons and: 10.1.6. NFS (Network Troubleshooting Tools)

NMS support for: 3.3. A Look Ahead (Essential SNMP)

5. Network-Management Software (Essential SNMP)

OS fingerprinting: 6.3.1. Stack Fingerprinting (Network Troubleshooting Tools)

proxy-aware: 9.2.2. Using Proxy-Aware Operating System Software (Building Internet Firewalls)

testing reload of: 27.5.6. Testing the Reload of the Operating System (Building Internet Firewalls)

Unix (see Unix)

Windows NT (see Windows NT)

Operation field, NFS log record: 14.6. NFS server logging (Managing NFS and NIS)

operational costs: 1.3.2.4. Economic considerations (Network Troubleshooting Tools)

operations in SNMP: 2.6. SNMP Operations (Essential SNMP)

2.6. SNMP Operations (Essential SNMP)

(see also names of specific operations)

operators in filters: 5.4.2.4. Filtering (Network Troubleshooting Tools)

5.4.2.4.3. Packet characteristics. (Network Troubleshooting Tools)

OPIE (One-time Passwords in Everything): 12.2.4. OPIE (TCP/IP Network Administration)

Opkts field (netstat command): 6.1.1. The Interface Name (TCP/IP Network Administration)

option statement (dhcpd): D.3.3. DHCP Options (TCP/IP Network Administration)

options directive: 6.1. The Resolver (DNS and Bind)

6.1.6. The options Directive (DNS and Bind)

E.2.10. options (4.9+) (DNS and Bind)

BIND 8/9

options allow-query: 11.2.2.1. Restricting all queries (DNS and Bind)

options auth-nxdomain: 14.5.7. Other Name Servers Don't Cache Your Negative Answers (DNS and Bind)

options cleaning-interval: 10.12.3.1. Cleaning interval (DNS and Bind)

options coresize: 10.12.2.3. Changing the core size limit (DNS and Bind)

options fetch-glue: 10.10. A Nonrecursive Name Server (DNS and Bind)

options files: 10.12.2.4. Changing the open files limit (DNS and Bind)

options forwarders: 10.5. Forwarding (DNS and Bind)

options interface-interval: 10.12.3.2. Interface interval (DNS and Bind)

options listen-on: 10.15.1. Configuring the IPv4 Transport (DNS and Bind)

options notify-source: 10.15.1. Configuring the IPv4 Transport (DNS and Bind)

options query-source: 10.15.1. Configuring the IPv4 Transport (DNS and Bind)

options recursion: 10.10. A Nonrecursive Name Server (DNS and Bind)

options recursive-clients: 10.12.2.5. Limiting the number of clients (DNS and Bind)

options rfc2308-type1: 10.13. Compatibility (DNS and Bind)

options serial-queries: 10.12.2.6. Limiting the number of SOA queries (DNS and Bind)

options statistics-interval: 10.12.3.3. Statistics interval (DNS and Bind)

options transfer-format: 10.12.1.6. More efficient zone transfers (DNS and Bind)

options transfer-source: 10.15.1. Configuring the IPv4 Transport (DNS and Bind)

options transfer-source-v6: 10.15.2. Configuring the IPv6 Transport (DNS and Bind)

options treat-cr-as-space: 10.13. Compatibility (DNS and Bind)

BIND resolver

options debug: 6.1.6. The options Directive (DNS and Bind)

E.5.7. options debug (4.9+) (DNS and Bind)

E.5.8. options no-check-names (8.2+) (DNS and Bind)

options ndots: 6.1.6. The options Directive (DNS and Bind)

E.5.6. options ndots (4.9+) (DNS and Bind)

options debug: E.5.9. options attempts (8.2+) (DNS and Bind)

E.5.10. options timeout (8.2+) (DNS and Bind)

E.5.11. options rotate (8.2+) (DNS and Bind)

options notify-source-v6: 10.15.2. Configuring the IPv6 Transport (DNS and Bind)

Options directive (Apache): 11.4.2. Controlling Server Options (TCP/IP Network Administration)

options directiveBIND 4

options query-log: 7.6.1. Common Syslog Messages (DNS and Bind)

options entry (resolv.conf file): 8.2.1. The Resolver Configuration File (TCP/IP Network Administration)

Options field (DHCP): 3.6.2. Dynamic Host Configuration Protocol (TCP/IP Network Administration)

options parameter (gated): B.8.10. The kernel Statement (TCP/IP Network Administration)

options statement

BSD Unix kernel configuration: 5.1.5.1. The options statement (TCP/IP Network Administration)

named.conf file: C.2.5. The options Statement (TCP/IP Network Administration)

OPTIONS variable (sendmail): 10.2. Running sendmail as a Daemon (TCP/IP Network Administration)

Oracle Net8: 23.1.3. Oracle SQL*Net and Net8 (Building Internet Firewalls)

Oracle SQL*Net: 23.1.3. Oracle SQL*Net and Net8 (Building Internet Firewalls)

Order directive (Directory containers): 11.4.4. Defining Access Controls (TCP/IP Network Administration)

order_spec option (named): C.2.5. The options Statement (TCP/IP Network Administration)

org domain: 2.2.1. Top-Level Domains (DNS and Bind)

3.3.1. The Domain Hierarchy (TCP/IP Network Administration)

organizational culture in network management: 1.3.2.1. Professionalism (Network Troubleshooting Tools)

organizational domains (DNS): 3.3.1. The Domain Hierarchy (TCP/IP Network Administration)

organizational types: 4.2.1.1. Obtaining an official network address (TCP/IP Network Administration)

Organizationally Unique Identifier (OUI): 2.1.6. arp (Network Troubleshooting Tools)

origin, appending to domain names: 4.4.1. Appending Domain Names (DNS and Bind)

$ORIGIN control statement: 7.3. Organizing Your Files (DNS and Bind)

9.4.1. Creating a Subdomain in the Parent's Zone (DNS and Bind)

A.1. Master File Format (DNS and Bind)

changing default origin with: 7.3.2. Changing the Origin in a Zone Data File (DNS and Bind)

$ORIGIN directive (zone files): 8.3.3.2. The $ORIGIN directive (TCP/IP Network Administration)

C.3. Zone File Records (TCP/IP Network Administration)

os category: 7.5.3.1. BIND 8 categories (DNS and Bind)

OS fingerprinting (see stack fingerprinting)

OS/390 operating system: 5.2. NMS Suites (Essential SNMP)

EthOS option (Net-SNMP): C.2. Common Command-Line Arguments (Essential SNMP)

OSI (Open Systems Interconnect)

1.2. A Data Communications Model (TCP/IP Network Administration)

Application Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

Data Link Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

layers: 1.2. A Data Communications Model (TCP/IP Network Administration)

Network Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

network protocol: 2.2.5. Lightweight Directory Access Protocol (LDAP) (Managing NFS and NIS)

Physical Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

Presentation Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

Session Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

TI-RPC and: 1.5.3.1. Socket RPC and Transport Independent RPC (Managing NFS and NIS)

Transport Layer: 1.2. A Data Communications Model (TCP/IP Network Administration)

transport protocol: 2.2.5. Lightweight Directory Access Protocol (LDAP) (Managing NFS and NIS)

OSPF (Open Shortest Path First): 22.2.2. Open Shortest Path First (OSPF) (Building Internet Firewalls)

1.7. Application Layer (TCP/IP Network Administration)

5.4.2.4.2. Protocol and port filtering. (Network Troubleshooting Tools)

9.1.1.2. nemesis (Network Troubleshooting Tools)

10.1.5. Routing (Network Troubleshooting Tools)

designated routers: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

directional graphs: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

equal-cost multi-path routing: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

Hello packets: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

hierarchy of routing areas: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

link-state database: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

LSA (Link-State Advertisement): 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

overview: 7.4. Interior Routing Protocols (TCP/IP Network Administration)

polling and: 9.2.2. OpenView Graphing (Essential SNMP)

security: 7.4.3. Open Shortest Path First (TCP/IP Network Administration)

ospf statement (gated): B.8.1. The ospf Statement (TCP/IP Network Administration)

ospf_monitor tool: 10.1.5. Routing (Network Troubleshooting Tools)

ossh: 13.3. Table of Products (SSH, The Secure Shell)

OSTYPE macro (sendmail): 10.4.1.1. Building a sendmail.cf with m4 macros (TCP/IP Network Administration)

E.3. m4 sendmail Macros (TCP/IP Network Administration)

E.3.3. OSTYPE (TCP/IP Network Administration)

other parameter (gated): B.8.10. The kernel Statement (TCP/IP Network Administration)

OTP system: 21.3.1. One-Time Password Software (Building Internet Firewalls)

OUI (Organizationally Unique Identifier): 2.1.6. arp (Network Troubleshooting Tools)

out-of-order packets: 5.5.3. tcpflow (Network Troubleshooting Tools)

out of zone resource records: 14.4.2. Name Server Behavior (DNS and Bind)

outages: 8.5.1. Outages (DNS and Bind)

outbound

finger requests: 20.7.1. finger (Building Internet Firewalls)

packets: 8.2.2. Be Careful of "Inbound" Versus "Outbound" Semantics (Building Internet Firewalls)

filtering rules for: 8.8.6. It Should Apply Rules Separately to Incoming and Outgoing Packets, on a Per-Interface Basis (Building Internet Firewalls)

Telnet: 8.7.1. Outbound Telnet Service (Building Internet Firewalls)

outbound octets (see ifOutOctets object)

outcomes of performance measurement: 12.2.2.1. General steps (Network Troubleshooting Tools)

outdelay parameter (gated): B.8.4. The bgp Statement (TCP/IP Network Administration)

output

hping output: 9.1.1.1. hping (Network Troubleshooting Tools)

labeling OIDs in: 9.2.2. OpenView Graphing (Essential SNMP)

MRTG: 13.1. Using MRTG (Essential SNMP)

plotting with xplot: 5.5.7. tcptrace (Network Troubleshooting Tools)

retrieving and using text labels in: 9.2.2. OpenView Graphing (Essential SNMP)

returning in Net-SNMP: 11.1. Net-SNMP (Essential SNMP)

SNMP formatted output: 7.2.1.2. Configuration and options (Network Troubleshooting Tools)

SNMP redirected output: 7.2.1.8. Agents and traps (Network Troubleshooting Tools)

SNMP tables: 7.2.1.3. snmpgetnext, snmpwalk, and snmptable (Network Troubleshooting Tools)

SystemEDGE requirements: 11.2.1. Extensibility for Unix and Windows NT (Essential SNMP)

tables: 11.3.1. Tables (Essential SNMP)

tcpdump files: 5.4.1. Using tcpdump (Network Troubleshooting Tools)

5.5.5. tcpshow (Network Troubleshooting Tools)

writing to files: C.3.7. snmpdelta (Essential SNMP)

outside zone message: 7.6.1. Common Syslog Messages (DNS and Bind)

ovdumpevents file: 10.2.1. HP OpenView (Essential SNMP)

overengineering networks: 1.3.2.3. Legal and ethical considerations (Network Troubleshooting Tools)

12.2.2.2. Bottleneck analysis (Network Troubleshooting Tools)

overload-bit parameter (gated): B.8.3. The isis Statement (TCP/IP Network Administration)

overloaded networks: 3.1.3.1. Link lights (Network Troubleshooting Tools)

overriding sender addresses (sendmail): E.2. The sendmail Command (TCP/IP Network Administration)

oversized packets: 3.3.3.3. Ping of Death (Network Troubleshooting Tools)

ovfiltercheck utility (OpenView): 6.1.5.3. FilterExpressions (Essential SNMP)

OV_Node_Down event: 10.2.2. Using NNM's Event Configurations (Essential SNMP)

10.2.2.4. Log messages, notifications, and automatic actions (Essential SNMP)

ovtrapd utility (OpenView): 10.2.1. HP OpenView (Essential SNMP)

owner name is invalid message: 7.6.1. Common Syslog Messages (DNS and Bind)

owners of processes, listing: 2.1.4. lsof (Network Troubleshooting Tools)

O'Reilly Book Support email address: 0.1. Audience (Network Troubleshooting Tools)

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