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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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