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<p>Bookstack 是一套非常好用的線上&rdquo;筆記&rdquo;系統</p>
<p>他用圖書館/書本的概念，讓使用者可以建立自己的&rdquo;圖書館&rdquo;</p>
<p>同時在圖書館內建立不同的&rdquo;書籍&rdquo;</p>
<p>而且支援 Markdown 語法</p>
<p>其他的方式像是在nextcloud上編輯 md檔案(字體太小)</p>
<p>或者是boostnote(只能在本機)</p>
<p>都或多或少有點小缺點</p>
<p>Bookstack則是沒有這些問題，不過就是系統「大」了點&hellip;</p>
<p>不過還好有人做成docker的方式來啟動，大大的降低了建置的難度(其實也沒有很難啦，只是要裝個PHP、弄個DB而已)</p>
<p></p>
<p>這個是專案的名稱</p>
<h4 id="solidnerd-docker-bookstack">solidnerd/docker-bookstack</h4>
<p>gihub上的連結</p>
<p><a href="https://github.com/solidnerd/docker-bookstack">https://github.com/solidnerd/docker-bookstack</a></p>
<p>因為都轉成docker了，所以安裝很簡單
先git clone回來</p>
<pre><code>git clone https://github.com/solidnerd/docker-bookstack
</code></pre>
<p>然後依照他的說明，建立一個docker-compose.yml檔案，再視情況修改</p>
<p>底下是我的docker-compose.yml內容</p>
<pre><code> version: '2'
services:
mysql:
image: mysql:5.7.21
environment:
- MYSQL_ROOT_PASSWORD=secret
- MYSQL_DATABASE=bookstack
- MYSQL_USER=bookstack
- MYSQL_PASSWORD=secret
volumes:
- mysql-data:/var/lib/mysql
bookstack:
image: solidnerd/bookstack:0.24.1
depends_on:
- mysql
environment:
- DB_HOST=mysql:3306
- DB_DATABASE=bookstack
- DB_USERNAME=bookstack
- DB_PASSWORD=secret
volumes:
- uploads:/var/www/bookstack/public/uploads
- storage-uploads:/var/www/bookstack/public/storage
ports:
- &quot;0.0.0.0:8003:80&quot;
volumes:
mysql-data:
uploads:
storage-uploads:
</code></pre>
<p>原則上我沒有修改什麼設定，先確認一下現在的bookstack版本 0.24.1 是目前最新的了</p>
<p>然後把 port 改成8003 ，避免去強碰 80 port</p>
<p>如果前面搭配 caddy 之類的反向代理，那不用去記 port 也沒關係。</p>
<p>好了之後，就執行 docker-compose up -d</p>
<p>然後 docker ps -a 看一下執行狀況</p>
<pre><code>CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6b3333eabf30 solidnerd/bookstack:0.24.1 &quot;/docker-entrypoint.…&quot; 4 hours ago Exited (0) About an hour ago docker-bookstack_bookstack_1
b8d74048eba1 mysql:5.7.21 &quot;docker-entrypoint.s…&quot; 4 hours ago Exited (0) About an hour ago docker-bookstack_mysql_1
</code></pre>
<p>應該可以順利跑起來</p>
<p><img src="http://i.imgur.com/NIUCJhN.png" alt="bookstack運作畫面" /></p>
<p>沒啥難度，簡單作一下紀錄</p>
<p>後面再來看看能不能在一個地方新增 md 檔案，然後可以自動傳到 hexo/hugo/ghost 的目錄，接著自動生成靜態檔案出來&hellip;</p>
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<h3><a href="/post/change-preferred-language-in-firefox/">[筆記] 為了metabase 修改 firefox 開啟網頁時使用的預設語言 change the preferred language in firefox for metabase</a></h3>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>最近在測試metabase，記得幾個月前就有測試過</p>
<p>但是當時的界面和現在的樣子差很多，看樣子改版還滿勤勞的</p>
<p>所以這次改用docker來建立，根本五分鐘不到就建好了(挖鼻孔)</p>
<p>不過呢，很討厭的是，一進去就發現語系採用的是簡體中文</p>
<p></p>
<p>來看看這張圖
<img src="http://i.imgur.com/oK6WmtJ.png" alt="metabase的簡體中文界面" /></p>
<p>WHAT THE FUCK !!!</p>
<p>這是哪一國的翻譯？？我相信對岸人才濟濟，絕對不至於翻譯出這種結果來..</p>
<p>想當然爾，我認為這個問題可以暫時不管，反正進入系統後，再去使用者界面設定就好</p>
<p>BUT .. (對，又是這個他X的BUT)</p>
<p>使用者設置裡面根本沒什麼可以改！</p>
<p><img src="http://i.imgur.com/DBRE5J6.png" alt="metabase超陽春的使用者設置" /></p>
<p>對，沒錯，就只有這樣！！ 請容許我再罵一次 WHAT THE FUCK !!!</p>
<hr />
<p>好吧，罵完就算了，還是要想辦法解決，於是切到管理界面，的確是有語言設置</p>
<p>然後，我要再罵第三次 WHAT THE FUCK !!!</p>
<p><img src="http://i.imgur.com/HCSf8Ba.png" alt="metabase管理界面" /></p>
<pre><code>The default language for this Metabase instance.This only applies to emails, Pulses, etc. Users' browsers will specify the language used in the user interface.
</code></pre>
<p>簡單說，這邊的語言設定「不影響」使用者界面，界面使用的語系，由各個瀏覽器決定！</p>
<p>好，那我去修改firefox 的語言看看</p>
<p>開啟 firefox ，點選右上角的三橫槓，找到語言選項</p>
<p>我一開始改成這樣</p>
<p><img src="http://i.imgur.com/630BBJF.png" alt="firefox settings" /></p>
<p>結果不管重開幾次，開啟metabase還是那個殘體中文字</p>
<p>後來想說，啊，會不會是「英語」「美語」的差異？</p>
<p>所以我把順序改成</p>
<p><img src="http://i.imgur.com/pfdSWaC.png" alt="firefox language settings for metabase" /></p>
<p>然後再開 metabase ，結果就如我所願的，改成英文界面了</p>
<p><img src="http://i.imgur.com/rc6SLSC.png" alt="metabase in English" /></p>
<p>真的是比殘體中文好太多了..</p>
<p>另外，關於繁體中文的部份，也到metabase的官方論壇去留言了</p>
<p>就看看官方要不要處理這個問題&hellip;</p>
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<h3><a href="/post/copy_role_in_pgsql/">PostgreSQL 直接從已經存在的使用者複製權限到另一個使用者</a></h3>
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<span class="date moment">2018-11-12</span>
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<p>因為工作上的需求，有個資料庫需要開放給不同team的人去存取</p>
<p>雖然都是在同一台機器上的同一個資料庫</p>
<p>但是希望能夠不同team的人用不同的資料庫使用者</p>
<p>這樣萬一出事，會比較好抓兇手？？</p>
<p></p>
<p>總之呢，這個需求一直反覆出現</p>
<p>每次開發不同的AP，就要求一個不同的代號，實在有點煩</p>
<p>之前都是用pgadmin來處理，現在就改用psql來弄</p>
<p>其實也很簡單</p>
<pre><code>CREATE ROLE b LOGIN;
GRANT a TO b;
</code></pre>
<p>可以帶入script ，用script 或者用ansible去跑就好了</p>
<p>省得每次都要在那邊手動改來改去..</p>
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<h3><a href="/post/change-preferred-language-in-firefox/">[筆記] 為了metabase 修改 firefox 開啟網頁時使用的預設語言 change the preferred language in firefox for metabase</a></h3>
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<p>最近在測試metabase，記得幾個月前就有測試過</p>
<p>但是當時的界面和現在的樣子差很多，看樣子改版還滿勤勞的</p>
<p>所以這次改用docker來建立，根本五分鐘不到就建好了(挖鼻孔)</p>
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<h3><a href="/post/copy_role_in_pgsql/">PostgreSQL 直接從已經存在的使用者複製權限到另一個使用者</a></h3>
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<span class="date moment">2018-11-12</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>因為工作上的需求，有個資料庫需要開放給不同team的人去存取</p>
<p>雖然都是在同一台機器上的同一個資料庫</p>
<p>但是希望能夠不同team的人用不同的資料庫使用者</p>
<p>這樣萬一出事，會比較好抓兇手？？</p>
<p></p>
<a href="/post/copy_role_in_pgsql/" class="more">Continue reading</a>
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<h3><a href="/post/weird-client-server-connection/">[筆記] 詭異的client&amp;server間連線的問題，或許跟KVM有關係？</a></h3>
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<span class="date moment">2018-11-08</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>這是發生在一個夜黑風高的寂寥深夜&hellip;.. ( What The FXXX &hellip; )</p>
<p>來到這個環境之後，有一個很詭異的狀況一直困擾著我</p>
<p>在每個分公司，都會有一台伺服器作為KVM Host</p>
<p>上面跑兩台VM，一台作為ansible controller (目前沒作用)</p>
<p>另一台作為這邊所謂的 &ldquo;Build Server&rdquo;</p>
<p>用途包含了DHCP Server / Proxy Server (squid3) / APT Proxy (squid-deb-proxy)</p>
<p>問題就發生在這台 Build Server 上&hellip;</p>
<p></p>
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<h3><a href="/post/nice-du-report-tool-durep/">Nice Du Report Tool Durep</a></h3>
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<span class="date moment">2018-11-06</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>最近在重新規劃前人留下的backup爛攤子
各個伺服器統一備份到一台backup storage
想說如果每天能夠看到backup storage的磁碟用量的話
就可以抓出備份空間成長速度、推估需要多大的磁碟空間
找了一些工具，結果發現 durep 這個 ubuntu 內建的工具
基本上可以滿足我的需求</p>
<a href="/post/nice-du-report-tool-durep/" class="more">Continue reading</a>
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<p>Bookstack 是一套非常好用的線上&rdquo;筆記&rdquo;系統</p>
<p>他用圖書館/書本的概念，讓使用者可以建立自己的&rdquo;圖書館&rdquo;</p>
<p>同時在圖書館內建立不同的&rdquo;書籍&rdquo;</p>
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<p>其他的方式像是在nextcloud上編輯 md檔案(字體太小)</p>
<p>或者是boostnote(只能在本機)</p>
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<p>Bookstack則是沒有這些問題，不過就是系統「大」了點&hellip;</p>
<p>不過還好有人做成docker的方式來啟動，大大的降低了建置的難度(其實也沒有很難啦，只是要裝個PHP、弄個DB而已)</p>
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<title>[筆記] 為了metabase 修改 firefox 開啟網頁時使用的預設語言 change the preferred language in firefox for metabase</title>
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<description>&lt;p&gt;最近在測試metabase，記得幾個月前就有測試過&lt;/p&gt;
&lt;p&gt;但是當時的界面和現在的樣子差很多，看樣子改版還滿勤勞的&lt;/p&gt;
&lt;p&gt;所以這次改用docker來建立，根本五分鐘不到就建好了(挖鼻孔)&lt;/p&gt;
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<pubDate>Mon, 12 Nov 2018 09:48:12 +0800</pubDate>
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<description>&lt;p&gt;因為工作上的需求，有個資料庫需要開放給不同team的人去存取&lt;/p&gt;
&lt;p&gt;雖然都是在同一台機器上的同一個資料庫&lt;/p&gt;
&lt;p&gt;但是希望能夠不同team的人用不同的資料庫使用者&lt;/p&gt;
&lt;p&gt;這樣萬一出事，會比較好抓兇手？？&lt;/p&gt;
&lt;p&gt;&lt;/p&gt;</description>
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<title>[筆記] 詭異的client&amp;server間連線的問題，或許跟KVM有關係？</title>
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<pubDate>Thu, 08 Nov 2018 18:01:23 +0800</pubDate>
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&lt;p&gt;來到這個環境之後，有一個很詭異的狀況一直困擾著我&lt;/p&gt;
&lt;p&gt;在每個分公司，都會有一台伺服器作為KVM Host&lt;/p&gt;
&lt;p&gt;上面跑兩台VM，一台作為ansible controller (目前沒作用)&lt;/p&gt;
&lt;p&gt;另一台作為這邊所謂的 &amp;ldquo;Build Server&amp;rdquo;&lt;/p&gt;
&lt;p&gt;用途包含了DHCP Server / Proxy Server (squid3) / APT Proxy (squid-deb-proxy)&lt;/p&gt;
&lt;p&gt;問題就發生在這台 Build Server 上&amp;hellip;&lt;/p&gt;
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<title>Nice Du Report Tool Durep</title>
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<pubDate>Tue, 06 Nov 2018 15:24:29 +0800</pubDate>
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<description>&lt;p&gt;最近在重新規劃前人留下的backup爛攤子
各個伺服器統一備份到一台backup storage
想說如果每天能夠看到backup storage的磁碟用量的話
就可以抓出備份空間成長速度、推估需要多大的磁碟空間
找了一些工具，結果發現 durep 這個 ubuntu 內建的工具
基本上可以滿足我的需求&lt;/p&gt;</description>
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<link>https://h.cowbay.org/post/bookstack-docker/</link>
<pubDate>Tue, 06 Nov 2018 14:57:14 +0800</pubDate>
<guid>https://h.cowbay.org/post/bookstack-docker/</guid>
<description>&lt;p&gt;Bookstack 是一套非常好用的線上&amp;rdquo;筆記&amp;rdquo;系統&lt;/p&gt;
&lt;p&gt;他用圖書館/書本的概念，讓使用者可以建立自己的&amp;rdquo;圖書館&amp;rdquo;&lt;/p&gt;
&lt;p&gt;同時在圖書館內建立不同的&amp;rdquo;書籍&amp;rdquo;&lt;/p&gt;
&lt;p&gt;而且支援 Markdown 語法&lt;/p&gt;
&lt;p&gt;其他的方式像是在nextcloud上編輯 md檔案(字體太小)&lt;/p&gt;
&lt;p&gt;或者是boostnote(只能在本機)&lt;/p&gt;
&lt;p&gt;都或多或少有點小缺點&lt;/p&gt;
&lt;p&gt;Bookstack則是沒有這些問題，不過就是系統「大」了點&amp;hellip;&lt;/p&gt;
&lt;p&gt;不過還好有人做成docker的方式來啟動，大大的降低了建置的難度(其實也沒有很難啦，只是要裝個PHP、弄個DB而已)&lt;/p&gt;
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<h3><a href="/post/nice-du-report-tool-durep/">Nice Du Report Tool Durep</a></h3>
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<span class="date moment">2018-11-06</span>
<span class="categories">
<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>最近在重新規劃前人留下的backup爛攤子
各個伺服器統一備份到一台backup storage
想說如果每天能夠看到backup storage的磁碟用量的話
就可以抓出備份空間成長速度、推估需要多大的磁碟空間
找了一些工具，結果發現 durep 這個 ubuntu 內建的工具
基本上可以滿足我的需求</p>
<p>
我的需求其實很簡單</p>
<ol>
<li>可以指定目錄&rdquo;深度&rdquo;</li>
<li>可以用圖表的方式顯示目前用量</li>
<li>每天寄出報表</li>
</ol>
<p>來看一下 durep 執行的狀況
<strong>如果只指定一層，那就是顯示該目錄底下的使用狀況</strong></p>
<pre><code>2018-10-29 15:50:21 [minion@tps006 ~]$ sudo durep -td 1 -sd /file
[ /file 259.0G (0 files, 3 dirs) ]
259.0G [############################# ] 100.00% Oct 25 2017 team/
1.7M [ ] 0.00% Oct 23 14:04 html/
741.1K [ ] 0.00% Jul 11 2016 team_commons/
2018-10-29 15:50:26 [minion@tps006 ~]$ sudo durep -td 1 -sd /file
</code></pre>
<p>如果指定兩層
就顯示包含下一層目錄的磁碟使用量 <em>好像廢話</em></p>
<pre><code>2018-10-29 16:14:23 [mini@s006 ~]$ sudo durep -td 2 -sd /file
[ /file 259.0G (0 files, 3 dirs) ]
259.0G [############################# ] 100.00% Oct 25 2017 team/
259.0G [##############################] 100.00% Oct 3 15:08 tp/
0b [ ] 0.00% Jul 11 2016 temporary/
1.7M [ ] 0.00% Oct 23 14:04 html/
748.5K [############ ] 43.04% Jun 22 2016 font-awesome/
282.2K [#### ] 16.23% Jun 22 2016 css/
241.0K [#### ] 13.86% Jun 22 2016 js/
222.9K [### ] 12.82% Jun 22 2016 img/
210.7K [### ] 12.11% Jun 22 2016 fonts/
18.6K [ ] 1.07% Oct 23 14:04 index.html
8.5K [ ] 0.49% Jun 22 2016 less/
2.2K [ ] 0.12% Jun 22 2016 Gruntfile.js
1.7K [ ] 0.10% Jun 22 2016 README.md
1.2K [ ] 0.07% Jun 22 2016 mail/
1.1K [ ] 0.06% Jun 22 2016 LICENSE
652b [ ] 0.04% Jun 22 2016 package.json
12b [ ] 0.00% Jun 22 2016 .gitignore
741.1K [ ] 0.00% Jul 11 2016 team_commons/
709.6K [############################ ] 95.75% Oct 23 14:05 tp/
31.5K [# ] 4.25% Oct 23 14:05 temporary/
2018-10-29 16:14:36 [mini@s006 ~]$
</code></pre>
<p>搭配mail 使用，有點可惜的是在郵件內顯示，格式稍微有點跑掉
不過至少需要看到的目錄總使用量(左上角)，還有各個子目錄的用量都可以清楚的看到
如果能夠有縮排就更好了！</p>
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<h3><a href="/post/weird-client-server-connection/">[筆記] 詭異的client&amp;server間連線的問題，或許跟KVM有關係？</a></h3>
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<span class="date moment">2018-11-08</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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<p>這是發生在一個夜黑風高的寂寥深夜&hellip;.. ( What The FXXX &hellip; )</p>
<p>來到這個環境之後，有一個很詭異的狀況一直困擾著我</p>
<p>在每個分公司，都會有一台伺服器作為KVM Host</p>
<p>上面跑兩台VM，一台作為ansible controller (目前沒作用)</p>
<p>另一台作為這邊所謂的 &ldquo;Build Server&rdquo;</p>
<p>用途包含了DHCP Server / Proxy Server (squid3) / APT Proxy (squid-deb-proxy)</p>
<p>問題就發生在這台 Build Server 上&hellip;</p>
<p></p>
<p>有陣子花了點時間去檢查各個分公司的網路環境，確保每一台Build Server都能夠連接Internet</p>
<p>然後找了一個離總部最近的據點，把這些電腦連接Internet 的方式改為用 proxy 來控制</p>
<p>在proxy內加入了 allowhost 的設定，然後把user電腦上的瀏覽器都代入 proxy server (firefox/chrome 的設定方式不同)</p>
<pre><code>acl localnet src 192.168.28.0/24
acl allowhost src &quot;/etc/squid3/allowhost.txt&quot;
acl localdomain dstdomain &quot;/etc/squid3/localdomain.txt&quot;
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
</code></pre>
<p>一開始這樣作還相安無事，但是呢，慢慢的時不時會有USER反應說無法連接 Internet</p>
<p>照理來說，因為都是透過proxy上網，所以如果是proxy server出問題，那其他電腦應該也不行上Internet</p>
<p>但如果這樣的話，那就一點也不詭異了呀(攤手)</p>
<p>實際上的狀況是，只有反應的USER的電腦無法連接Internet</p>
<p>然後真的詭異的來了</p>
<p>用USER電腦去 ping proxy server ，有時候會通，有時候不通..</p>
<p>從Proxy Server去 ping USER電腦，也是類似的狀況</p>
<p>可是我卻可以透過IPSEC VPN，分別SSH連接到這兩台機器上</p>
<p>這代表兩台的網路都OK呀..</p>
<p>正當我百思不得其解的時候，突然 USER電腦那邊的 ping 有反應了</p>
<p>變成可以 ping proxy Server 了！ (What the FXXX !!!!)</p>
<p>我什麼都沒改呀&hellip;</p>
<hr>
<p>反正呢&hellip;</p>
<p>這種狀況三不五時就會出現一次，會出現在哪一台電腦也不一定</p>
<p>不過，依照觀察到的狀況來說，似乎都是發生在很少開機的電腦上</p>
<p>然後呢，因為底層是 KVM</p>
<p>我也嘗試過用virsh 去restart VM 或者是 restart network</p>
<p>有時候可以解決，有時候又還是不能連接</p>
<p>於是另外測試安裝了 proxmox VE 的虛擬平台</p>
<p>在上面起一台新的Server，再用 ansible 做成 build server的角色</p>
<p>這樣子作的機器，就不會發生這種狀況</p>
<p>所以我在猜是不是跟底層是KVM有關係..</p>
<p>不過要動這個的話，工程有點大，手邊也沒那麼多機器可以替換(很慘)</p>
<p>暫時先保留這個作法，等到下次再發生這狀況</p>
<p>再來找老闆看這情形，然後來討論要不要換掉各分公司的VM Host&hellip;</p>
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