H3C Technologies H3C WX3000 Series Unified Switches - Manual (Page 551)

51-15
Step 3: After the log file “information” is created and the file “/etc/syslog.conf” is modified, execute the
following command to send a HUP signal to the system daemon “syslogd”, so that it can reread its
configuration file “/etc/syslog.conf”.
# ps -ae | grep syslogd
147
# kill -HUP 147
After all the above operations, the device can make records in the corresponding log file.
Through combined configuration of the device name (facility), information severity level threshold
(severity), module name (filter) and the file “syslog.conf”, you can sort information precisely for filtering.
Log Output to a Linux Log Host
Network requirements
As shown in Figure 51-2 , Switch sends the following log information to the Linux log host whose IP
address is 202.38.1.10: All modules' log information, with severity higher than “errors”.
Figure 51-2 Network diagram for log output to a Linux log host
Internet
PC Switch
Configuration procedure
1) Configure Switch:
# Enable the information center.
system-view
[Switch] info-center enable
# Configure the host whose IP address is 202.38.1.10 as the log host. Permit all modules to output log
information with severity level higher than error to the log host.
[Switch] info-center loghost 202.38.1.10 facility local7
[Switch] info-center source default channel loghost log level errors debug state off trap
state off
2) Configure the log host:
Step 1: Execute the following commands as a super user (root user).
# mkdir /var/log/Switch
# touch /var/log/Switch/information
Step 2: Edit the file “/etc/syslog.conf” as the super user (root user) to add the following selector/action
pairs.
# Switch configuration messages
local7.info /var/log/Switch/information