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<h3 class="title"><a href="/">MCの飄狂山莊㊣</a></h3>
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<span class="subtitle">What’s the Worst That Could Happen?</span>
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<a href="/post/site-to-site-vpn-using-wireguard-in-two-edgerouters/">
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<h3><a href="/post/site-to-site-vpn-using-wireguard-in-two-edgerouters/">[筆記] 在edgerouter上用wireguard 建立site to site VPN / Site to Site Vpn Using Wireguard in Two Edgerouters</a></h3>
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<div class="meta">
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<span class="date moment">2019-08-06</span>
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>之前總部和分公司之間 是用buffalo 的小AP 灌 openwrt</p>
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<p>然後用strongswan 來打 IPSEC site to site VPN</p>
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<p>config 看起來不是很難 (只是看起來)</p>
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<p>但是實際上已經找不到當初的文件</p>
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<p>所以要維護很困難(光那些RSA KEY 就不知道為何、如何產生)</p>
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<p>後來採購了兩台edgerouter X 做測試</p>
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<p>也用openvpn 成功的建立了 site to site VPN</p>
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<p>本來想說 openvpn 已經夠簡單了</p>
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<p>今天看到文章說用wireguard 可以更簡單</p>
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<p>於是研究了一下，發現還真的很簡單！</p>
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<p></p>
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<a href="/tags/vpn">vpn</a>
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<a href="/tags/edgerouter">edgerouter</a>
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</article>
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<div class="content">
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<h3><a href="/post/another-way-to-keep-ansible-log/">[筆記] 為了保存log 用script 指令執行ansible / Another Way to Keep Ansible Log using script command</a></h3>
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<div class="meta">
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<span class="date moment">2019-08-05</span>
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<span class="categories">
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<a href="/categories/ansible">ansible</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>之前為了能夠在執行完 ansible playbook 後，能有個log 可以看</p>
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<p>所以在每次執行的時候，都要加入 tee 的指令</p>
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<p>像是</p>
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<pre><code>ANSIBLE_CONFIG=/home/D/ansiblecontrol/ansible.cfg /usr/local/bin/ansible-playbook /home/D/ansiblecontrol/playbook.user_client.yml --vault-password-file=/home/D/ansiblecontrol/vault.passwd -i /home/D/ansiblecontrol/inventory/production -f1 --limit tyuserclients |tee /tmp/tyuserclients.log
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</code></pre>
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<p>一直都是放在crontab 裡面執行，也就沒有去管他</p>
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<p>反正也沒有人關心結果怎樣 (攤手</p>
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<p></p>
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</div>
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</article>
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</div>
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</a>
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<article class="default article">
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<a href="/post/send-mail-to-notify-after-pxe-install/">
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</div>
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<div class="content">
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<h3><a href="/post/send-mail-to-notify-after-pxe-install/">[筆記] 用pxe 安裝系統，完成後送出郵件通知 / send mail notification after pxe install</a></h3>
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<div class="meta">
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<span class="date moment">2019-07-31</span>
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<span class="categories">
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>最近有個任務，需要大量安裝client</p>
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<p>想用PXE來處理，只要user開機按F12(acer 桌機) 選擇PXE Boot</p>
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<p>然後選擇OS版本，就可以自動進行安裝</p>
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<p>安裝完成後，會自動重新開機，接著就用ansible來做user環境設定</p>
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<p>PXE的部份本來是沒有什麼問題，自動安裝系統的部份都做好了</p>
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<p>可是因為這次的量比較多，想說讓每一台在完成PXE安裝後的第一次重開機</p>
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<p>就送出一封郵件來通知我，說已經完成安裝，可以執行ansible 了</p>
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<p>看似很簡單的一件事情，卻搞了我兩天….</p>
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<p></p>
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<a href="/tags/pxe">PXE</a>
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<a href="/tags/ubuntu">ubuntu</a>
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<a href="/tags/linux">linux</a>
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</div>
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</div>
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</article>
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<div class="article-wrapper u-cf">
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<a href="/post/ansible-run-task-depends-on-ipaddr/">
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<div class="content">
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<h3><a href="/post/ansible-run-task-depends-on-ipaddr/">[ansible] 用 ip 位置判斷是否要執行task /ansible run task depends on ipaddr</a></h3>
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<div class="meta">
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<span class="date moment">2019-07-23</span>
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<a href="/categories/ansible">ansible</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>因為工作上的需要，要修改client端的 /etc/environment 檔案</p>
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<p>在有權限使用proxy 服務的user的環境中，加入proxy 的設定</p>
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<p>原本的清單中，有host/user/ip 這幾個值可以拿來判斷</p>
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<p>proxy server 那邊是採用ip 來控制，所以這邊也跟著用 ip 來判斷要不要修改 /etc/environment</p>
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<div class="content">
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<h3><a href="/post/ansible-selectattr-from-list-in-dictionary/">[ansible] 引用事先定義好的yaml檔裡面的變數 - Ansible Selectattr From List in Dictionary file</a></h3>
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<div class="meta">
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<span class="date moment">2019-07-01</span>
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<span class="categories">
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<a href="/categories/ansible">Ansible</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>在ansible中，關於如何引用自定義的變數，一直讓我很頭疼</p>
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<p>尤其是有牽涉到從外部導入yaml檔案時，更是常常讓我不知道到底該怎麼抓出想要的變數</p>
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<p>這次還是用selectattr 來處理，希望下次能夠記得…</p>
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<p></p>
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<article class="default article">
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</a>
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<div class="content">
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<h3><a href="/post/remote-management-system-meshcentral/">linux底下遠端遙控&管理的好用系統 Meshcentral / Remote Management & control system Meshcentral</a></h3>
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<div class="meta">
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<span class="date moment">2019-06-20</span>
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<span class="categories">
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>之前在LAN/windows環境下，一直都是用ultravnc/winvnc/tigervnc之類的VNC軟體</p>
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<p>但是如果要過 internet ，就會碰到各種開port的問題</p>
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<p>在這種環境下，就有了當時 teamviewer 的橫空出世</p>
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<p>解決了開PORT的問題，讓被控端(通常是資訊技術相對弱勢，需要接受幫助的一方)不需要懂太多</p>
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<p>只要下載teamviewer被控端，開啟後報ID 給協助者就好了</p>
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<p></p>
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<div class="content">
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<h3><a href="/post/install-asus-10g-nic-in-proxmox/">Install Asus 10G NIC XG-C100C in Proxmox</a></h3>
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<div class="meta">
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<span class="date moment">2019-06-17</span>
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<span class="categories">
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<a href="/categories/proxmox">Proxmox</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>前幾天接的一個case</p>
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<p>因為費用的關係，所以沒有考慮用傳統定義上的伺服器(DELL R640)</p>
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<p>改採用比較高階一點的洋垃圾，規格大概是 Intel E5-2680V2 x2 + 64G RAM + 128G SSD x2 (OS) + 960G SSD x4 (raid 10 , zfs)</p>
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<p>storage 選擇QNAP NAS TS-932X + 960G SSD x 4 (raid 10 , NFS) + QNAP 10G Switch QSW-1280C-8C</p>
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<p>既然storage這邊選用了10G的機種，伺服器上當然也要增加10G網卡</p>
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<p>一樣，成本考量，就不用INTEL 了，買了這張 ASUS 10G 網卡</p>
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<div class="content">
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<h3><a href="/post/change-timezone-in-docker/">[筆記] 修改 docker 容器內的時區 - Change Timezone in Docker</a></h3>
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<div class="meta">
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<span class="date moment">2019-05-21</span>
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>最近一直在玩一些docker，不過老是會碰到歪果扔寫的東西，時區都不一致</p>
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<p>有的用 UTC，有的用localtime，就是沒碰到用 Asia/Taipei 的….</p>
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<a href="/post/change-timezone-in-docker/" class="more"></a>
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<a href="/tags/docker">docker</a>
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<a href="/tags/timezone">timezone</a>
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<div class="content">
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<h3><a href="/post/transfer-file-content-using-xclip-in-terminal/">Transfer File Content Using Xclip in Terminal</a></h3>
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<div class="meta">
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<span class="date moment">2019-05-17</span>
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<span class="categories">
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<a href="/categories/linux">linux</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>工作上常會需要用ssh登入遠端主機檢查LOG，有必要的時候，還要把log複製回本機來處理。</p>
|
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<p>以前都是傻傻的用 scp 傳檔案</p>
|
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<p>之前就記得有這個xclip/xsel 可以用，但是一直沒有弄清楚怎麼執行</p>
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<p>早上研究了一下，順便做個筆記。</p>
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<p></p>
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</article>
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<div class="content">
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<h3><a href="/post/inx-collect-detail-hardware-info/">[筆記] inxi 蒐集詳盡的硬體資訊 / inxi Collect Detail Hardware Info</a></h3>
|
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<div class="meta">
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<span class="date moment">2019-04-23</span>
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>最近因為一直碰到硬碟故障的問題，算起來那一批同時購買的5X顆 seagate 2T硬碟，已經有一半以上故障返修了….</p>
|
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<p>然後又因為一直沒有添購新的硬碟，只能用這些快過保/已過保的撐著</p>
|
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<p>所以最近不斷的在更換機器內的硬碟，而且還沒有熱插拔！</p>
|
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<p>也導致原本負責處理盤點資產的同事困擾，因為跟手邊的紀錄已經對不起來了</p>
|
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|
<p>然後就變成要對資產的時候，需要一台一台登入，然後去下不同的指令，取得想要的硬體資訊，超級麻煩的！</p>
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<p></p>
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<a href="/post/recommended-ulauncher-in-ubuntu-1804/">[推薦] ulauncher ubuntu 18.04 底下，好用的 app launcher / Recommended Ulauncher in Ubuntu 1804</a>
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<a href="/post/pgbarman-in-ubuntu-1804-postgresql-10/">[筆記] 在Ubuntu 18.04 下 透過 pgbarman streaming backup 備份 postgresql 10/ backup postgresql 10 with pgbarman straming backup in ubuntu 18.04</a>
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