R3204P16-HP Load Balancing Module System Maintenance Configuration Guide-6PW101

CAUTION:

Because the default system configurations for different channels are different, first disable the output of

log, trap, and debugging information of all modules on the specified channel (loghost in this example),

and then configure the output rule as needed so that unnecessary information will not be output.

# Configure the information output rule: allow log information of all modules with severity equal to or

higher than informational to be output to the log host.

[Sysname] info-center source default channel loghost log level informational state on

2. Configure the log host

Step 1: Log in to the log host as a root user.

Step 2: Create a subdirectory named LB under directory /var/log/, and create file info.log under the LB

directory to save logs of LB.

# mkdir /var/log/LB

# touch /var/log/LB/info.log

Step 3: Edit file /etc/syslog.conf and add the following contents.

# Device configuration messages

local5.info /var/log/LB/info.log

In the above configuration, local5 is the name of the logging facility used by the log host to receive logs.

info is the information level. The Linux system will record the log information with severity level equal to

or higher than informational to file /var/log/LB/info.log.

NOTE:

Be aware of the following issues while editing file /etc/syslog.conf:

• Comments must be on a separate line and begin with the # sign.

• No redundant spaces are allowed after the file name.

• The logging facility name and the information level specified in the /etc/syslog.conf file must be

identical to those configured on the device using the info-center loghost and info-center source

commands; otherwise the log information may not be output properly to the log host.

Step 4: After log file info.log is created and file /etc/syslog.conf is modified, you need to issue the

following commands to display the process ID of syslogd, kill the syslogd process, and restart syslogd

using the -r option to make the modified configuration take effect.

# ps -ae | grep syslogd

147

# kill -9 147

# syslogd -r &

NOTE:

Ensure that the syslogd process is started with the -r option on a Linux log host.

After the above configurations, the system will be able to record log information into the log file.

Outputting log information to the console

Network requirements

• Log information with a severity equal to or higher than informational will be output to the console;