Glossary
A
alias IP
An additional IP address assigned to an interface that already has an IP address. The normal and alias IP addresses both refer to the same physical interface.
auditing policy
The auditing policy determines which events are logged on host running Microsoft Windows operating systems.
authentication
The process of verifying the authenticity of a user or client before allowing access to a network system or service.
B
BOM
The byte order mark (BOM) is a Unicode character used to signal the byte-order of the message text.
BSD-syslog protocol
The old syslog protocol standard described in RFC-3164. Sometimes also referred to as the legacy-syslog protocol.
C
CA
A Certificate Authority (CA) is an institute that issues certificates.
Cadence icons
One Identity font that contains standard icons used in the user interfaces for various One Identity products.
certificate
A certificate is a file that uniquely identifies its owner. Certificates contains information identifying the owner of the certificate, a public key itself, the expiration date of the certificate, the name of the CA that signed the certificate, and some other data.
client mode
In client mode, syslog-ng OSE collects the local logs generated by the host and forwards them through a network connection to the central syslog-ng OSE server or to a relay.
D
destination
A named collection of configured destination drivers.
destination driver
A communication method used to send log messages.
destination, local
A destination that transfers log messages within the host, for example, writes them to a file, or passes them to a log analyzing application.
destination, network
A destination that sends log messages to a remote host (that is, a syslog-ng OSE relay or server) using a network connection.
disk buffer
syslog-ng OSE can store messages on the local hard disk if the central log server or the network connection to the server becomes unavailable.
disk queue
See disk buffer.
domain name
The name of a network, for example: balabit.com.
Drop-down
Flare default style that can be used to group content within a topic. It is a resource to structure and collapse content especially in non-print outputs.
E
embedded log statement
A log statement that is included in another log statement to create a complex log path.
F
filter
An expression to select messages.
fully qualified domain name (FQDN)
A domain name that specifies its exact location in the tree hierarchy of the Domain Name System (DNS). For example, given a device with a local hostname myhost and a parent domain name example.com, the fully qualified domain name is myhost.example.com.
G
gateway
A device that connects two or more parts of the network, for example: your local intranet and the external network (the Internet). Gateways act as entrances into other networks.
Glossary
List of short definitions of product-specific terms.
H
high availability
High availability uses a second syslog-ng OSE server unit to ensure that the logs are received even if the first unit breaks down.
host
A computer connected to the network.
hostname
A name that identifies a host on the network.
I
IETF-syslog protocol
The syslog-protocol standard developed by the Internet Engineering Task Force (IETF), described in RFC-5424.
K
key pair
A private key and its related public key. The private key is known only to the owner, while the public key can be freely distributed. Information encrypted with the private key can only be decrypted using the public key.
L
license
The syslog-ng OSE license determines the number of distinct hosts (clients and relays) that can connect to the syslog-ng server.
log path
A combination of sources, filters, parsers, rewrite rules, and destinations: syslog-ng OSE examines all messages arriving to the sources of the logpath and sends the messages matching all filters to the defined destinations.
log source host
A host or network device (including syslog-ng OSE clients and relays) that sends logs to the syslog-ng OSE server. Log source hosts can be servers, routers, desktop computers, or other devices capable of sending syslog messages or running syslog-ng.
log statement
See log path.
logstore
A binary logfile format that can encrypt, compress, and timestamp log messages.
Long Term Supported release
Long Term Supported releases are major releases of that are supported for three years after their original release.
LSH See log source host
N
name server
A network computer storing the IP addresses corresponding to domain names.
Note
Circumstance that needs special attention.
O
Open Source
TODO
Oracle Instant Client
The Oracle Instant Client is a small set of libraries, which allow you to connect to an Oracle Database. A subset of the full Oracle Client, it requires minimal installation but has full functionality.
output buffer
A part of the memory of the host where syslog-ng OSE stores outgoing log messages if the destination cannot accept the messages immediately.
output queue
Messages from the output queue are sent to the target syslog-ng OSE server. The syslog-ng OSE application puts the outgoing messages directly into the output queue, unless the output queue is full. The output queue can hold 64 messages, this is a fixed value and cannot be modified.
overflow queue
See output buffer.
P
parser
A set of rules to segment messages into named fields or columns.
ping
A command that sends a message from a host to another host over a network to test connectivity and packet loss.
port
A number ranging from 1 to 65535 that identifies the destination application of the transmitted data. For example: SSH commonly uses port 22, web servers (HTTP) use port 80, and so on.
Public-key authentication
An authentication method that uses encryption key pairs to verify the identity of a user or a client.
R
regular expression
A regular expression is a string that describes or matches a set of strings.
relay mode
In relay mode, syslog-ng OSE receives logs through the network from syslog-ng clients and forwards them to the central syslog-ng OSE server using a network connection.
rewrite rule
A set of rules to modify selected elements of a log message.
S
SaaS
Software-as-a-Service.
server mode
In server mode, syslog-ng OSE acts as a central log-collecting server. It receives messages from syslog-ng OSE clients and relays over the network, and stores them locally in files, or passes them to other applications, for example, log analyzers.
Skin
Used to design the online output window.
Snippet
Flare file type that can be used to reuse content. The One Identity syslog-ng OSE contains various default snippets.
source
A named collection of configured source drivers.
source driver
A communication method used to receive log messages.
source, local
A source that receives log messages from within the host, for example, from a file.
source, network
A source that receives log messages from a remote host using a network connection, for example, network(), syslog().
SSL
See TLS.
syslog-ng
The syslog-ng OSE application is a flexible and highly scalable system logging application, typically used to manage log messages and implement centralized logging.
syslog-ng agent
The syslog-ng Agent for Windows is a commercial log collector and forwarder application for the Microsoft Windows platform. It collects the log messages of the Windows-based host and forwards them to a syslog-ng server using regular or SSL-encrypted TCP connections.
syslog-ng OSE client
A host running syslog-ng OSE in client mode.
syslog-ng Open Source Edition
The syslog-ng OSE application is a flexible and highly scalable system logging application that is ideal for creating centralized and trusted logging solutions, for more, see What syslog-ng OSE is.
syslog-ng OSE
See syslog-ng Open Source Edition
syslog-ng Premium Edition
The syslog-ng Premium Edition is the commercial version of the open-source application. It offers additional features, like encrypted message transfer and an agent for Microsoft Windows platforms.
syslog-ng OSE relay
A host running syslog-ng OSE in relay mode.
syslog-ng OSE server
A host running syslog-ng OSE in server mode.
T
template
A user-defined structure that can be used to restructure log messages or automatically generate file names.
Tip
Additional, useful information.
TLS
Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols which provide secure communications on the Internet. The application can encrypt the communication between the clients and the server using TLS to prevent unauthorized access to sensitive log messages.
traceroute
A command that shows all routing steps (the path of a message) between two hosts.
U
UNIX domain socket
A UNIX domain socket (UDS) or IPCsocket (inter-procedure call socket) is a virtual socket, used for inter-process communication.