| Line 44: | Line 44: | ||
|} | |} | ||
| − | === Displaying logs === | + | ==== Displaying logs ==== |
<pre> | <pre> | ||
LYSH@MyHostName# show log apache2 // Display all apache2 logs | LYSH@MyHostName# show log apache2 // Display all apache2 logs | ||
| Line 50: | Line 50: | ||
</pre> | </pre> | ||
| − | === Displaying last n logs === | + | ==== Displaying last n logs ==== |
<pre> | <pre> | ||
LYSH@MyHostName# show log apache2 -n 10 // Display only the last 10 apache2 logs | LYSH@MyHostName# show log apache2 -n 10 // Display only the last 10 apache2 logs | ||
| Line 56: | Line 56: | ||
</pre> | </pre> | ||
| − | === Displaying last n logs with keyword === | + | ==== Displaying last n logs with keyword ==== |
<pre> | <pre> | ||
LYSH@MyHostName# show log apache2 -n 10 request // Display only the last 10 apache2 logs filtered by "request" | LYSH@MyHostName# show log apache2 -n 10 request // Display only the last 10 apache2 logs filtered by "request" | ||
| Line 62: | Line 62: | ||
</pre> | </pre> | ||
| − | === Displaying logs in real-time === | + | ==== Displaying logs in real-time ==== |
<pre> | <pre> | ||
LYSH@MyHostName# show log apache2 -w // Display the apache2 logs in real-time | LYSH@MyHostName# show log apache2 -w // Display the apache2 logs in real-time | ||
| Line 68: | Line 68: | ||
</pre> | </pre> | ||
| − | === Displaying logs in real-time with keyword === | + | ==== Displaying logs in real-time with keyword ==== |
<pre> | <pre> | ||
LYSH@MyHostName# show log apache2 -w request // Display the apache2 logs filtered by "request" in real-time | LYSH@MyHostName# show log apache2 -w request // Display the apache2 logs filtered by "request" in real-time | ||
| Line 74: | Line 74: | ||
</pre> | </pre> | ||
| − | === keyword === | + | ==== keyword ==== |
The <code>&</code> is the Logical AND operator and the <code>|</code> is the Logical OR operator. | The <code>&</code> is the Logical AND operator and the <code>|</code> is the Logical OR operator. | ||
<pre> | <pre> | ||
Revision as of 14:28, 29 April 2021
Log
You can see various logs using the show log command.
LYSH@MyHostName# show log {name} [-h] [-n NUMBER] [-w] [keyword]
optional arguments:
-h, --help show this help message and exit
-n [NUMBER], --number [NUMBER] enter 0 to show all logs, and enter a value greater than 0 to show as much as the value entered
-w, --watch show the log or setup status in real time
The below table shows you all kinds of logs. Some logs are generated in real-time during the runtime of a specific service, which is called "Runtime log".
If the Runtime log of a specific service is disabled, logs are not generated.
Therefore, you should verify the status of the Runtime log by the show service command. If disabled, you need to enable it.
| log name | log description |
|---|---|
| apache2 | It is the apache2 access log. |
| dhcpv4 | It is the logs that were generated in real-time during the runtime of the dhcpv4 service. |
| dhcpv6 | It is the logs that were generated in real-time during the runtime of the dhcpv6 service. |
| failover | It is the logs that were generated in real-time during the runtime of the failover service. |
| logexp | It is the logs that were generated in real-time during the runtime of the logexp service. |
| lsyslog | It is the Syslog generated from the imRAD services. |
| mysqlerror | It is the Syslog generated from the imRAD services. |
| radius | It is the logs that were generated in real-time during the runtime of the radiusd service. |
| smgr | It is the logs that were generated in real-time during the runtime of the smgr service. |
| startup | It is the logs that were generated in real-time during the runtime of the startup service. |
| syslog | It is the Syslog. |
| ufw | It is logs of all blocked packets not matching the defined ufw policy. |
| update | It is the System update log. |
Displaying logs
LYSH@MyHostName# show log apache2 // Display all apache2 logs LYSH@MyHostName# show log radius // Display all radius logs
Displaying last n logs
LYSH@MyHostName# show log apache2 -n 10 // Display only the last 10 apache2 logs LYSH@MyHostName# show log radius -n 10 // Display only the last 10 radius logs
Displaying last n logs with keyword
LYSH@MyHostName# show log apache2 -n 10 request // Display only the last 10 apache2 logs filtered by "request" LYSH@MyHostName# show log radius -n 10 accept // Display only the last 10 radius logs filtered by "request"
Displaying logs in real-time
LYSH@MyHostName# show log apache2 -w // Display the apache2 logs in real-time LYSH@MyHostName# show log radius -w // Display the radius logs in real-time
Displaying logs in real-time with keyword
LYSH@MyHostName# show log apache2 -w request // Display the apache2 logs filtered by "request" in real-time LYSH@MyHostName# show log radius -w accept // Display the radius logs filtered by "accept" in real-time
keyword
The & is the Logical AND operator and the | is the Logical OR operator.
LYSH@MyHostName# show log request&reply // Display the apache2 logs having both "request" and "reply" LYSH@MyHostName# show log request|reply // Display the apache2 logs having either "request" or "reply"