cOS Core 15.00.01 Log Reference Guide  Next

Chapter 1: Introduction

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This guide is a reference for all log messages generated by cOS Core. It is designed to be a valuable information source for both management and troubleshooting.

1.1. Notation and Conventions

The following notations and conventions will be used in this guide for describing log messages.

Notation

The following notation is used throughout this reference guide when specifying the parameters of a log message:
Angle Brackets <name>
Used for specifying the name of a log message parameter.
Square Brackets [name]
Used for specifying the name of a conditional log message parameter.

Example 1.1. Log Message Parameters

Log Message

New configuration activated by user <username> and committed via <authsystem>

Parameters
authsystem
username

Both the authsystem and the username parameters will be included.

Example 1.2. Conditional Log Message Parameters

Log Message

Administrative user <username> logged in via <authsystem>. Access level: <access_level>

Parameters
authsystem
username
access_level
[userdb]
[server_ip]
[server_port]
[client_ip]
[client_port]

The authsystem, username and the access_level parameters will be included. The other parameters of userdb, server_ip, server_port, client_ip and client_port may or may not be included, depending on the context of the log message.

Abbreviations

The following abbreviations are used throughout this reference guide:

Abbreviation Full name
ALG Application Layer Gateway
ARP Address Resolution Protocol
DHCP Dynamic Host Configuration Protocol
DNS Domain Name System
ESP Encapsulating Security Payload
FTP File Transfer Protocol
HA High Availability
HTTP Hyper Text Transfer Protocol
ICMP Internet Control Message Protocol
IDS Intrusion Detection System
IP Internet Protocol
IPSec Internet Protocol Security
L2TP Layer 2 Tunneling Protocol
NAT Network Address Translation
OSPF Open Shortest Path First
PPP Point to Point Protocol
PPPoE Point to Point Protocol over Ethernet
RADIUS Remote Authentication Dial In User Service
SAT Static Address Translation
SMTP Simple Mail Transfer Protocol
SNMP Simple Network Management Protocol
SSL Secure Socket Layer
TCP Transport Control Protocol
TLS Transport Layer Security
UDP User Datagram Protocol
URL Uniform Resource Locator
UTF Unicode Transformation Format
VLAN Virtual Local Area Network
VPN Virtual Private Network

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