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Control Panel
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8.3.3
Displaying the system log files
System log service and syslog file
At any time, a Linux system executes many programs running in parallel
within the background. Usually, these are denominated as services, servers
or daemons. They perform a large part of the work of the operating system.
As they run in the background, these programs do not have a GUI and so
they are not able to manage output directly, for instance in case of events
relevant for system administration.
Such messages originate from
1. the Linux kernel (the central part of the operating system)
2. the daemons (programs executing the system services
3. user programs
Therefore, these messages are collected by a central system log service
(syslog) and are distributed depending on their priority and origin according
to a configurable set of rules.
So ,for system supervision and safeguarding correct reaction on error
situations, the file logging daemon
syslogd
(or an improved successor of it)
runs on every Linux system,. On the Edge Gateways from Hilscher, the
widely-spread logging daemon
Syslog-ng
is used, which had been
developped by BalaBit IT Security Ltd. (now: One Identity,
.
Openíng the system log
To access the syslog files generated by
Syslog-ng
, open this page within
the main menu of the control panel using
System > Syslog
. Read access
rights are required to open this page. The page shows you a list of stored
system logs covering different periods in time. This list also contains the
last date of change and the file size specified in KB. Within this list, each
line corresponds to a system log file for a specific time period.
Figure 21: Control Panel, page System > Syslog
Edge Gateway | NIOT-E-TPI51-EN-RE (Connect)
DOC170502UM04EN | Revision 4 | English | 2018-08 | Released | Public
© Hilscher 2017 – 2018