CLI - Log - 편집 역사

2023년 3월 16일 (목) 08:23에 송재호님의 편집

2023-03-16T08:23:08Z

2022년 1월 28일 (금) 01:55에 Shin님의 편집

2022-01-28T01:55:07Z

Shin: /* Configuration */

2021-05-17T02:22:31Z

Configuration

Shin: /* sort */

2021-05-13T08:45:17Z

sort

Shin: /* 로그 파일 출력 */

2021-05-13T08:41:10Z

로그 파일 출력

Shin: /* rotate */

2021-05-13T08:18:40Z

rotate

2021년 5월 13일 (목) 08:08에 Shin님의 편집

2021-05-13T08:08:23Z

차이 보기

Shin: 새 문서: === Log === You can see various logs that are located in each device using the show log command.

 LYSH@MyHostName# show log {name} [-h] [-n NUMBER] [-w] [keyword] op...

2021-05-13T07:45:13Z

새 문서: === Log === You can see various logs that are located in each device using the <code>show log</code> command. <pre> LYSH@MyHostName# show log {name} [-h] [-n NUMBER] [-w] [keyword] op...

새 문서

=== Log ===
You can see various logs that are located in each device using the <code>show log</code> command.
<pre>
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
</pre>
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 [[CLI - Services(daemons) | Runtime log]] of a specific service is disabled, logs are not generated.
Therefore, you should verify the status of the Runtime log by the <code>show service</code> command. If disabled, you need to [[CLI - Services(daemons) | enable]] it.

{| class="wikitable"
! style='width:150px' | 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 [[ImRAD services(daemons) | dhcpv4]] service.
|-
| dhcpv6 || It is the logs that were generated in real-time during the runtime of the [[ImRAD services(daemons) | dhcpv6]] service.
|-
| failover || It is the logs that were generated in real-time during the runtime of the [[ImRAD services(daemons) | failover]] service.
|-
| logexp || It is the logs that were generated in real-time during the runtime of the [[ImRAD services(daemons) | 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 [[ImRAD services(daemons) | radiusd]] service.
|-
| smgr|| It is the logs that were generated in real-time during the runtime of the [[ImRAD services(daemons) | smgr]] service.
|-
| startup|| It is the logs that were generated in real-time during the runtime of the [[ImRAD services(daemons) | startup]] service.
|-
| syslog|| It is the Syslog.
|-
| ufw || It is logs of all blocked packets not matching the defined [[CLI - ufw | ufw]] policy.
|-
| update|| It is the System update log.
|-
|}

==== Displaying logs ====
<pre>
LYSH@MyHostName# show log apache2 // Display all apache2 logs
LYSH@MyHostName# show log radius // Display all radius logs
</pre>

==== Displaying last n logs ====
<pre>
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
</pre>

==== Displaying last n logs with keyword ====
<pre>
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"
</pre>

==== Displaying logs in real-time ====
<pre>
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
</pre>

==== Displaying logs in real-time with keyword ====
<pre>
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
</pre>

==== keyword with logical operator ====
The <code>&</code> is the logical "AND" operator and the <code>|</code> is the logical "OR" operator.
<pre>
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"
</pre>

''Note that you'd better put a keyword in quotation marks.''

==== Displaying log files ====
To list all log files, enter the <code>show log files</code> command in the user mode. If you want to delete some log files to increase disk space, use the <code>[[CLI_-_System#storage|system storage cleanup]]</code> command.
<pre>
LYSH@MyHostName# show log files
0 2021-05-12 13:57 LOG/apache2/other_vhosts_access.log
0 2021-05-12 13:57 LOG/btmp
4.0K 2021-05-10 18:06 LOG/installer
4.0K 2021-05-10 18:23 LOG/private
...
289M 2021-05-12 14:40 LOG/journal/dca4ac54531c48e2ad4e199728e9e888
344M 2021-05-12 14:42 LOG
</pre>

==== Configuration ====

===== loghost =====
It is the configuration for Syslog to log remotely. We term such remote log server "loghost".If there is the same "loghost", it overwrites to the new one.

<pre>
LYSH@MyHostName# configure
configure# loghost add -h
usage: loghost add [-h] <A.B.C.D|WORD> [<[1-65535]>] [<[WORD]>]
</pre>

To send all logs to the remote server whose address is 192.168.0.100 and port is the default Syslog port(514).
<pre>
configure# loghost add 192.168.0.100
</pre>

To send all logs to the remote server whose address is 192.168.0.100 and port is 1000.
<pre>
configure# loghost add 192.168.0.100 1000
</pre>

To send logs whose level is greater than or equal to "notice" to the remote server whose address is 192.168.0.100 and port is 1000.
<pre>
configure# loghost add 192.168.0.100 1000 notice
</pre>

To verify loghost, enter the <code>show loghost</code> in the user mode.
<pre>
LYSH@MyHostName# show loghost
*.notice @192.168.0.100:1000
</pre>

===== rotate =====
It configures the logroate<ref>https://linux.die.net/man/8/logrotate</ref> that allows automatic rotation, compression, and removal of log files.<br>
You can configure it by entering <code>log roate {size} {roate}</code> command in the configuration mode. In this command, it needs two arguments that are
* size: With this, the log file is rotated when the specified size is reached. Size may be specified in bytes, kilobytes (sizeK), megabytes (sizeM), or gigabytes (sizeG)
* rotate: This specifies the number of times to rotate a file before it is deleted. For example, A count of 5 means five copies are retained.<ref>http://linuxnextgen.blogspot.com/2011/04/logrotate-in-linux.html</ref>

To verify current configuration, enter the <code>show system rotate</code> command in the user mode.
<pre>
LYSH@MyHostName# configure
configure# log roate 1G 3
configure# exit
LYSH@MyHostName# show system rotate
log rotate : size:1G rotate:3
</pre>

===== sort =====
You can specify the order of logs display. This configuration affects when if you execute the <code>show log</code> command without -w option. you can verify current setting by executing <code>show system logsort</code>. If the sort is "desc," it shows logs in descending order. If the sort is "asc", it shows logs in ascending order.
LYSH@MyHostName# show system logsort
logsort : desc // logs are shown in descending order.

You can change the order in the configuration mode.
LYSH@MyHostName# configure
configure# log sort asc
configure# exit
LYSH@MyHostName# show system logsort
logsort : asc // logs are shown in descending order.

@@ 100번째 줄: / 100번째 줄: @@
 ===== 로그 파일 읽기 =====
-<code>show log -o {filename}</code> 명열어를 사용하면 특정 로그 파일 내용을 읽을 수 있으며 keyword와 -w 옵션도 같이 사용 할 수 있습니다.
+<code>show log -o {filename}</code> 명어를 사용하면 특정 로그 파일 내용을 읽을 수 있으며 keyword와 -w 옵션도 같이 사용 할 수 있습니다.
 <pre>
 LYSH@MyHostName# show log -o LOG/imrad/access.log.2.gz

@@ 118번째 줄: / 118번째 줄: @@
 <pre>
 LYSH@MyHostName# configure
-configure# loghost add -h
+LYSH@MyHostName(config)# loghost add -h
 usage: loghost add [-h] <A.B.C.D|WORD> [<[1-65535]>] [<[WORD]>]
 </pre>
@@ 124번째 줄: / 124번째 줄: @@
 예로 모든 로그를 192.168.0.100 syslog 서버에 전송하려면 다음과 같이 입력하면됩니다.
 <pre>
-configure# loghost add 192.168.0.100
+LYSH@MyHostName(config)# loghost add 192.168.0.100
 </pre>
 예로 모든 로그를 1000번 포트를 사용하는 192.168.0.100 syslog 서버에 전송하려면 다음과 같이 입력하면됩니다.
 <pre>
-configure# loghost add 192.168.0.100 1000
+LYSH@MyHostName(config)# loghost add 192.168.0.100 1000
 </pre>
 로그중 "notice" 이상만 전송하려면 아래 예제와 같이 입력하면 됩니다.
 <pre>
-configure# loghost add 192.168.0.100 1000 notice
+LYSH@MyHostName(config)# loghost add 192.168.0.100 1000 notice
 </pre>
@@ 151번째 줄: / 151번째 줄: @@
 <pre>
 LYSH@MyHostName# configure
-configure# log roate 1G 3
+LYSH@MyHostName(config)# log roate 1G 3
-configure# exit
+LYSH@MyHostName(config)# exit
 LYSH@MyHostName# show system rotate
 log rotate                    : size:1G rotate:3
@@ 165번째 줄: / 165번째 줄: @@
 다음 예제와 같이 configuration mode를 통해 로그 정렬 순서를 정의 할 수 있습니다.
   LYSH@MyHostName# configure
-  configure# log sort asc
+  LYSH@MyHostName(config)# log sort asc
-  configure# exit
+  LYSH@MyHostName(config)# exit
   LYSH@MyHostName# show system logsort
   logsort                       : asc		// logs are shown in descending order.

@@ 112번째 줄: / 112번째 줄: @@
 </pre>
-==== Configuration ====
+==== 설정 ====
 ===== loghost =====

@@ 158번째 줄: / 158번째 줄: @@
 ===== sort =====
-You can specify the order of logs display. This configuration affects when if you execute the <code>show log</code> command without -w option. you can verify current setting by executing <code>show system logsort</code>. If the sort is "desc," it shows logs in descending order. If the sort is "asc", it shows logs in ascending order.
+-w 옵션(실시간)을 사용하지 않고 모든 혹은 검색된 로그를 출력 할 경우 표시 순서를 정의 할 수 있습니다. 현재 설정된 출력 순서는 <code>show system logsort</code>명령어를 통해 확인 할 수 있으며 로그 기록 시간을 기준으로 "asc"는 오름차순 그리고 "desc"는 내림차순을 의미합니다.
   LYSH@MyHostName# show system logsort
   logsort                       : desc		// logs are shown in descending order.
-You can change the order in the configuration mode.
+다음 예제와 같이 configuration mode를 통해 로그 정렬 순서를 정의 할 수 있습니다.
   LYSH@MyHostName# configure
   configure# log sort asc

@@ 86번째 줄: / 86번째 줄: @@
 <pre>
 LYSH@MyHostName# show log files
-       2021-05-12 13:57        LOG/apache2/other_vhosts_access.log
+M    2021-05-13 17:20        LOG
-       2021-05-12 13:57        LOG/btmp
+....
-.0K    2021-05-10 18:06        LOG/installer
+.0M    2021-05-13 17:20        LOG/apache2/access.log
-.0K    2021-05-10 18:23        LOG/private
+.7M    2021-05-12 23:59        LOG/apache2/access.log.1
-...
+K     2021-05-11 18:36        LOG/apache2/access.log.2.gz
-M    2021-05-12 14:40        LOG/journal/dca4ac54531c48e2ad4e199728e9e888
+....
-M    2021-05-12 14:42        LOG
+.1M    2021-05-11 16:23        LOG/imrad/ly_dhcpv4.log
 </pre>

@@ 127번째 줄: / 127번째 줄: @@
 ===== rotate =====
-It configures the logroate<ref>https://linux.die.net/man/8/logrotate</ref> that allows automatic rotation, compression, and removal of log files.<br>
+logroate<ref>https://linux.die.net/man/8/logrotate</ref>를 통해 로그 파일을 자동으로 압축, 백업 그리고 삭제 할 수 있습니다. configuration mode에서 <code>log roate {size} {roate}</code> 명령어를 사용해 최채 파일 크기 및 보유 개수를 정의할 수 있습니다.
-You can configure it by entering <code>log roate {size} {roate}</code> command in the configuration mode. In this command, it needs two arguments that are
+* size: 로그 파일이 특정 크기가 되면 자동으로 rotating 되며 그 크기는 kilobytes (sizeK), megabytes (sizeM), 또는 gigabytes (sizeG)로 정의 할 수 있습니다.
-* size: With this, the log file is rotated when the specified size is reached. Size may be specified in bytes, kilobytes (sizeK), megabytes (sizeM), or gigabytes (sizeG)
+* rotate: rotating후 보유할 최대 파일 개수를 의미합니다. 만일 값이 5라면 5개의 백업 파일을 시스템에 보유하고 나머진 삭제합니다.<ref>http://linuxnextgen.blogspot.com/2011/04/logrotate-in-linux.html</ref>
-To verify current configuration, enter the <code>show system rotate</code> command in the user mode.
+설정 확인은 <code>show system rotate</code> 명령어로 이용하세요.
 <pre>
 LYSH@MyHostName# configure