Category Archives: 伺服器網站服務

[Tomcat] allowLinking setting (soft link)

Posted on 2015 年 12 月 14 日 by cowman.chiang

edit the file ‘Tomcat/conf/context.xml’ change to restart Tomcat. Ref. Tomcat軟連接訪問配置symbol link

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[WordPress] Avoid xmlrpc attack

Posted on 2015 年 12 月 12 日 by cowman.chiang

add below code in the functions.php in your themes.

add_filter('xmlrpc_enabled', '__return_false');

1 2	add_filter('xmlrpc_enabled', '__return_false');

edit .htaccess

#protect xmlrpc
&lt;Files xmlrpc.php&gt;
Order Deny,Allow
Deny from all
&lt;/Files&gt;

#protect xmlrpc

Order Deny,Allow

Deny from all

</Files>

delete the xmlrpc.php file Ref. 解決WordPress被利用xmlrpc.php文件攻擊導致內存超負荷

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S3 CORS setting

Posted on 2015 年 05 月 19 日 by cowman.chiang

Ref: Enabling Cross-Origin Resource Sharing 讓 S3 允許 cross-domain 存取 Amazon S3 CORS headers only show during OPTIONS (preflight) and not during GET request Must set HEAD to avoid from OPTIONS error.

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Install aglio in Ubuntu 14.04

Posted on 2015 年 05 月 12 日 by cowman.chiang

Install nodejs Ref. NodeSource Node.js Binary Distributions

apt-get install -y nodejs nodejs-legacy

1 2	apt-get install -y nodejs nodejs-legacy

Install python

apt-get install python-dev

1 2	apt-get install python-dev

Install aglio Ref. Github : aglio

npm install -g aglio

1 2	npm install -g aglio

Posted in Aglio, Ubuntu | Leave a comment

[Git] Git command…

Posted on 2015 年 03 月 22 日 by cowman.chiang

git stash: 暫存機制 git stash: 暫存機制，可保留目前狀態，重新取回其他版本的code git stash clear: 清除所有暫存空間 git stash drop {git status name}: 清除指定的暫存狀態，如果不加參數，則刪除最近的那一個 git stash list: 查看目前暫存列表 git stash apply {git stash name}: 取回暫存的狀態，如果不加參數，則抓取最近的版本 git stash show {git stash name}: 查看指定的暫存與parent差異的部分，如果不加參數，則顯示最近的那一個版本 git stash branch {git stash … Continue reading →

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[Elasticsearch] The health status means…

Posted on 2015 年 02 月 24 日 by cowman.chiang

When we list the indexes, we will get the status information. It shows the health of index in the elasticsearch cluster. green All shards are allocated. yellow The primary shard is allocated but replicas are not. red The specific shard … Continue reading →

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[Elasticsearch] List all indexes and optimize it.

Posted on 2015 年 02 月 24 日 by cowman.chiang

When we deleted the indexes, the data were just marked by deleted. We can list all indexes to show status.

sudo curl 'localhost:9200/_cat/indices?v'

1 2	sudo curl 'localhost:9200/_cat/indices?v'

It will show the health, index name, pri, rep, docs.count, docs.deleted, store.size, pri.store.size.

health index               pri rep docs.count docs.deleted store.size pri.store.size
yellow kibana-int            5   1          5            0     66.7kb         66.7kb
yellow logstash-2015.02.13   5   1     402030      3366353      1.2gb          1.2gb
yellow logstash-2015.02.18   5   1      86843      3393979      1.1gb          1.1gb
yellow logstash-2015.02.15   5   1     218402      3063776      1.2gb          1.2gb
yellow logstash-2015.02.03   5   1     178621      2072000    756.3mb        756.3mb
yellow logstash-2015.02.06   5   1     466185      2479658    963.4mb        963.4mb
yellow logstash-2015.02.24   5   1     364473            0    166.5mb        166.5mb
yellow logstash-2015.02.02   5   1     313488      1838855    710.1mb        710.1mb
yellow logstash-2015.02.07   5   1     371602      3397300      1.2gb          1.2gb
yellow logstash-2015.02.21   5   1    3583288            0      1.2gb          1.2gb
yellow logstash-2015.02.22   5   1    3554707            0      1.1gb          1.1gb
yellow logstash-2015.02.23   5   1    3680625            0      1.2gb          1.2gb

health index pri rep docs.count docs.deleted store.size pri.store.size

yellow kibana-int 5 1 5 0 66.7kb 66.7kb

yellow logstash-2015.02.13 5 1 402030 3366353 1.2gb 1.2gb

yellow logstash-2015.02.18 5 1 86843 3393979 1.1gb 1.1gb

yellow logstash-2015.02.15 5 1 218402 3063776 1.2gb 1.2gb

yellow logstash-2015.02.03 5 1 178621 2072000 756.3mb 756.3mb

yellow logstash-2015.02.06 5 1 466185 2479658 963.4mb 963.4mb

yellow logstash-2015.02.24 5 1 364473 0 166.5mb 166.5mb

yellow logstash-2015.02.02 5 1 313488 1838855 710.1mb 710.1mb

yellow logstash-2015.02.07 5 1 371602 3397300 1.2gb 1.2gb

yellow logstash-2015.02.21 5 1 3583288 0 1.2gb 1.2gb

yellow logstash-2015.02.22 5 1 3554707 0 1.1gb 1.1gb

yellow logstash-2015.02.23 5 1 3680625 0 1.2gb 1.2gb

If we want to clear … Continue reading →

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[Nagios][Cacti] Monitor disk space > 8TB

Posted on 2015 年 02 月 17 日 by cowman.chiang

Because the limitation of snmp, when the disk space is more than 8TB, we will get the wrong value. Whether we use snmpwalk or snmpget, the results are all the same. Therefore, we need to restore the correct value. If … Continue reading →

Posted in Cacti, Nagios, SNMP | Leave a comment

[Logstash] Pattern set in grok.

Posted on 2015 年 02 月 16 日 by cowman.chiang

The original warning message is this.

"You are using a deprecated config setting "pattern" set in grok. Deprecated settings will continue to work, but are scheduled for removal from logstash in the future. You should use this instead: match =&gt; { "message" =&gt; "your pattern here" } If you have any questions about this, please visit the #logstash channel on freenode irc.""

"You are using a deprecated config setting "pattern" set in grok. Deprecated settings will continue to work, but are scheduled for removal from logstash in the future. You should use this instead: match => { "message" => "your pattern here" } If you have any questions about this, please visit the #logstash channel on freenode irc.""

And here is the original server config.

if [type] == "nginx-access" {
  grok {
    type =&gt; "nginx-access"
    pattern =&gt; "%{NGINXACCESS}"
    patterns_dir =&gt; ["/opt/logstash/patterns"]
  }
}

if [type] == "nginx-access" {

grok {

type => "nginx-access"

pattern => "%{NGINXACCESS}"

patterns_dir => ["/opt/logstash/patterns"]

}

So what we should do is modify the config. Using the match function to replace the pattern, like this.

if [type] == "nginx-access" {
  grok {
    patterns_dir =&gt; "/opt/logstash/patterns"
    type =&gt; "nginx-access"
    match =&gt; ["message", "%{NGINXACCESS}"]
  }
}

if [type] == "nginx-access" {

grok {

patterns_dir => "/opt/logstash/patterns"

type => "nginx-access"

match => ["message", "%{NGINXACCESS}"]

}

Posted in Logstash | Leave a comment

[Kibana] Time range search

Posted on 2015 年 02 月 06 日 by cowman.chiang

If I want to search information within these seven days.

@timestamp:["now-7d" TO "now"]

1 2	@timestamp:["now-7d" TO "now"]

If I want to search information between 2015-01-01 and 2015-01-31.

@timestamp:["2015-01-01" TO "2015-01-31"]

1 2	@timestamp:["2015-01-01" TO "2015-01-31"]

If I want to search information between 2015-02-01 13:00:00 and 2015-02-01 18:00:00.

@timestamp:["2015-02-01T13:00:00" TO "2015-02-01T18:00:00"]

1 2	@timestamp:["2015-02-01T13:00:00" TO "2015-02-01T18:00:00"]

Posted in Kibana | Leave a comment

Category Archives: 伺服器 網站服務

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Category Archives: 伺服器網站服務