change themes to nederburg

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2019-10-24 10:12:02 +08:00
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<!DOCTYPE html>
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<title>Parsa | Personal Blog Template</title>
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<article class="text-center">
<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/pgbarman-in-ubuntu-1804-postgresql-10-via-ssh/">[筆記] 在Ubuntu 18.04 下 透過 pgbarman rsync/ssh backup 備份 postgresql 10 / backup postgresql 10 with pgbarman via ssh/rsync in ubuntu 18.04</a></h4>
<p><p>這篇繼續講 pgbarman 透過 rsync/ssh 來備份 postgresql 資料庫的方式</p></p>
<a href="https://h.cowbay.org/post/pgbarman-in-ubuntu-1804-postgresql-10-via-ssh/" class="btn btn-transparent">read more</a>
</article>
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<article class="text-center">
<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>很久以前就有看到這個用來備份postgresql 的 pgbarman</p>
<p><a href="https://www.pgbarman.org/">https://www.pgbarman.org/</a></p>
<p>前幾天老闆在slack 上面又提到,所以這次就花了點時間來玩玩看</p>
<p>不過呢,雖然有弄起來,但是還真不知道有些問題是怎麼解決的&hellip;</p></p>
<a href="https://h.cowbay.org/post/pgbarman-in-ubuntu-1804-postgresql-10/" class="btn btn-transparent">read more</a>
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<img class="img-fluid mb-4" src="https://h.cowbay.org/images/post-default-7.jpg" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/install-nvidia-driver-cuda-pgstrom-in-ubuntu-1804/">[筆記] 在ubuntu 18.04 下安裝nvidia 顯示卡驅動程式以及 pgstrom / Install Nvidia Driver Cuda Pgstrom in Ubuntu 1804</a></h4>
<p><p>因為老闆說要試試看用GPU 來跑postgresql 威力</p>
<p>手邊剛好有一張 geforce gt 720</p>
<p>一開始沒想太多看到有這張卡的驅動程式然後CUDA也有支援</p>
<p>就直接從桌機拔下來接去LAB Server ,然後就開始一連串的難關了&hellip;</p></p>
<a href="https://h.cowbay.org/post/install-nvidia-driver-cuda-pgstrom-in-ubuntu-1804/" class="btn btn-transparent">read more</a>
</article>
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<article class="text-center">
<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/do-no-use-10-0-0-0-private-ipaddr-in-gcp/">[筆記] 在gcp 中用wireguard建立VPN時不要用 10.0.0.0/16 網段/Do No Use 10 0 0 0 Private Ipaddr in GCP</a></h4>
<p><p>最近一直在玩 wireguard 先前把各個分公司和總部的VPN 改用 wireguard 建立</p>
<p>想說再打個VPN tunnel 來當跳板連 ptt 好了</p>
<p>因為wireguard 建立很簡單,而且又可以指定想要繞出去的路由,不會影響原本的網路環境</p>
<p>本來是在vultr 的VPS上面建立這個tunnel</p>
<p>但是那台VPS連去ptt 很頓,卡卡的</p>
<p>所以改用google cloud platform 的free tier 來做</p>
<p>反正只是拿來當跳板,不會有什麼流量、運算產生,可以一直保持免費的狀態</p></p>
<a href="https://h.cowbay.org/post/do-no-use-10-0-0-0-private-ipaddr-in-gcp/" class="btn btn-transparent">read more</a>
</article>
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<article class="text-center">
<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/multiple-site-to-site-vpn-using-wireguard/">[筆記] 透過 wireguard 建立多點 site to site VPN / Multiple Site to Site VPN Using Wireguard</a></h4>
<p><p>因為實在受夠了現在用的 openwrt + strongswan 建立 IPSec VPN</p>
<p>雖然說其實沒有什麼不好,但是畢竟不是我建立的,而當初的文件也都不見了</p>
<p>完全沒辦法了解當時設計的邏輯造成後續debug 困難</p>
<p>可以想像一下一台VPN router ping 不到remote、ping不到internet、甚至ping不到自己 是要怎麼debug !?(翻桌</p>
<p>之前買了兩台edgerouter X 拿來玩了一下 wireguard感覺還不錯不過只有測試到點對點</p>
<p>這次試試看躲在gateway後面看看能不能建立多點的VPN環境</p></p>
<a href="https://h.cowbay.org/post/multiple-site-to-site-vpn-using-wireguard/" class="btn btn-transparent">read more</a>
</article>
</div>
<div class="col-lg-4 col-sm-6 mb-5">
<article class="text-center">
<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>之前總部和分公司之間 是用buffalo 的小AP 灌 openwrt</p>
<p>然後用strongswan 來打 IPSEC site to site VPN</p>
<p>config 看起來不是很難 (只是看起來)</p>
<p>但是實際上已經找不到當初的文件</p>
<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>
<p>後來採購了兩台edgerouter X 做測試</p>
<p>也用openvpn 成功的建立了 site to site VPN</p>
<p>本來想說 openvpn 已經夠簡單了</p>
<p>今天看到文章說用wireguard 可以更簡單</p>
<p>於是研究了一下,發現還真的很簡單!</p></p>
<a href="https://h.cowbay.org/post/site-to-site-vpn-using-wireguard-in-two-edgerouters/" class="btn btn-transparent">read more</a>
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<!DOCTYPE html>
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<meta charset="utf-8">
<title>Parsa | Personal Blog Template</title>
<!-- mobile responsive meta -->
<meta name="viewport" content="width=device-width, initial-scale=1">
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<article class="text-center">
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<p class="text-uppercase mb-2">[ansible]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>之前為了能夠在執行完 ansible playbook 後能有個log 可以看</p>
<p>所以在每次執行的時候,都要加入 tee 的指令</p>
<p>像是</p>
<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
</code></pre>
<p>一直都是放在crontab 裡面執行,也就沒有去管他</p>
<p>反正也沒有人關心結果怎樣 (攤手</p></p>
<a href="https://h.cowbay.org/post/another-way-to-keep-ansible-log/" class="btn btn-transparent">read more</a>
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<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>最近有個任務需要大量安裝client</p>
<p>想用PXE來處理只要user開機按F12(acer 桌機) 選擇PXE Boot</p>
<p>然後選擇OS版本就可以自動進行安裝</p>
<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>
<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>
<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>
<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>
<p>看似很簡單的一件事情,卻搞了我兩天&hellip;.</p></p>
<a href="https://h.cowbay.org/post/send-mail-to-notify-after-pxe-install/" class="btn btn-transparent">read more</a>
</article>
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<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[ansible]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>因為工作上的需要要修改client端的 /etc/environment 檔案</p>
<p>在有權限使用proxy 服務的user的環境中加入proxy 的設定</p>
<p>原本的清單中有host/user/ip 這幾個值可以拿來判斷</p>
<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></p>
<a href="https://h.cowbay.org/post/ansible-run-task-depends-on-ipaddr/" class="btn btn-transparent">read more</a>
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<img class="img-fluid mb-4" src="https://h.cowbay.org" alt="post-thumb">
<p class="text-uppercase mb-2">[Ansible]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><p>在ansible中關於如何引用自定義的變數一直讓我很頭疼</p>
<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>
<p>這次還是用selectattr 來處理,希望下次能夠記得&hellip;</p></p>
<a href="https://h.cowbay.org/post/ansible-selectattr-from-list-in-dictionary/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/remote-management-system-meshcentral/">linux底下遠端遙控&amp;管理的好用系統 Meshcentral / Remote Management &amp; control system Meshcentral</a></h4>
<p><p>之前在LAN/windows環境下一直都是用ultravnc/winvnc/tigervnc之類的VNC軟體</p>
<p>但是如果要過 internet 就會碰到各種開port的問題</p>
<p>在這種環境下,就有了當時 teamviewer 的橫空出世</p>
<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>
<p>只要下載teamviewer被控端開啟後報ID 給協助者就好了</p></p>
<a href="https://h.cowbay.org/post/remote-management-system-meshcentral/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[Proxmox]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/install-asus-10g-nic-in-proxmox/">Install Asus 10G NIC XG-C100C in Proxmox</a></h4>
<p><p>前幾天接的一個case</p>
<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>
<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>
<p>storage 選擇QNAP NAS TS-932X + 960G SSD x 4 (raid 10 , NFS) + QNAP 10G Switch QSW-1280C-8C</p>
<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>
<p>一樣成本考量就不用INTEL 了,買了這張 ASUS 10G 網卡</p></p>
<a href="https://h.cowbay.org/post/install-asus-10g-nic-in-proxmox/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/change-timezone-in-docker/">[筆記] 修改 docker 容器內的時區 - Change Timezone in Docker</a></h4>
<p><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>
<p>有的用 UTC有的用localtime就是沒碰到用 Asia/Taipei 的&hellip;.</p></p>
<a href="https://h.cowbay.org/post/change-timezone-in-docker/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[linux]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/transfer-file-content-using-xclip-in-terminal/">Transfer File Content Using Xclip in Terminal</a></h4>
<p><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>
<p>以前都是傻傻的用 scp 傳檔案</p>
<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>
<p>早上研究了一下,順便做個筆記。</p></p>
<a href="https://h.cowbay.org/post/transfer-file-content-using-xclip-in-terminal/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/inx-collect-detail-hardware-info/">[筆記] inxi 蒐集詳盡的硬體資訊 / inxi Collect Detail Hardware Info</a></h4>
<p><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&hellip;.</p>
<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>
<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>
<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>
<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></p>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/log-all-bash-commands/">[筆記] 紀錄所有下過的指令、時間 / Log All commands with timestamp</a></h4>
<p><p>今天發生一件有點詭異的事情,本來應該要經過某個指令才會產生的檔案</p>
<p>居然不知為何自己產生了,在我記憶中沒有去執行過那個指令</p>
<p>翻了一下 bash_history ,裡面也只有下過哪些指令,沒有紀錄時間,完全沒有參考價值(攤手)</p>
<p>所以翻了一下網路至少把這兩台主要跑ansible的機器的log功能補上紀錄所有指令以及時間的部份</p></p>
<a href="https://h.cowbay.org/post/log-all-bash-commands/" class="btn btn-transparent">read more</a>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/fix-zpool-device-busy-using-dmsetup/">[筆記] 解決無法建立zpool 的錯誤 / Fix Zpool Device Busy Using dmsetup</a></h4>
<p><p>今天把其中一台proxmox 加上10G 光纖網卡準備和另一台proxmox 組成10G 環境進行測試</p>
<p>想說把本機的zpool 拆掉重新建立一個raid0 的空間來做clone/migrate</p>
<p>可是一直出現device busy的錯誤訊息</p></p>
<a href="https://h.cowbay.org/post/fix-zpool-device-busy-using-dmsetup/" class="btn btn-transparent">read more</a>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/transfer-cent62-using-rsync/">[筆記] 用rsync 移轉 centos 6.2的老機器 Transfer Cent6.2 using rsync</a></h4>
<p><p>公司的一台老伺服器空間不足了,要執行指令都會中斷,所以想要擴充空間。</p>
<p>看起來不難搞,事實上&hellip;..</p></p>
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<p class="text-uppercase mb-2">[]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/command_to_test_main_ssl/">[筆記] 測試mail server 的SSL憑證的指令 Command to test mailserver SSL</a></h4>
<p><p>今天老闆出國發slack說手機不能寄信看了一下似乎是因為用GMAIL的APP來收信</p>
<p>然後google 不知道跟人家改了什麼,結果不接受原本的認證了&hellip; WTF &hellip;.</p>
<p>然後,這問題應該很久了,結果現在才在講 &hellip;.</p></p>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/install-timeshift-on-ubuntu1804/">Install Timeshift on Ubuntu1804</a></h4>
<p><p>最近要開始測試client安裝 ubuntu 18.04 的 ansible playbook</p>
<p>因為要不斷的修正所以想到一直有在自己電腦上執行的timeshift這個軟體</p>
<p>可以很簡單快速的備份、恢復系統狀態</p>
<p>可是不知道為什麼在ubuntu 18.04 上安裝就是會發生錯誤&hellip;.</p></p>
<a href="https://h.cowbay.org/post/install-timeshift-on-ubuntu1804/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/install-ubuntu1804-on-dell-6ir-raid-controller/">用DELL 6 i/R 建立RAID並在上面安裝ubuntu 18.04 </a></h4>
<p><p>買了一張 DELL 6/iR 低階的raid 卡</p>
<p>來測試把系統裝在硬體做的RAID上結果沒想到居然不能開機&hellip;</p></p>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/ubuntu-1804-install-root-on-raid/">Ubuntu 1804 Install Root on Raid</a></h4>
<p><p>最近在弄一台機器想要把ubuntu 18.04 安裝在software raid上</p>
<p>因為新開的機器大部分都是在proxmox上所以很少碰實體機器了</p>
<p>結果在安裝過程中做raid碰到一些問題來紀錄一下</p></p>
<a href="https://h.cowbay.org/post/ubuntu-1804-install-root-on-raid/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/smartd-failed-to-start-in-freenas/">[筆記] Freenas Smartd 啟動失敗 Smartd Failed to Start in Freenas</a></h4>
<p><p>這兩天在弄兩台Freenas 準備當作Proxmox 的Storage &amp; Server Backup</p>
<p>因為伺服器的限制只能接六個SATA我接了六個2T的硬碟做raid10</p>
<p>然後把Freenas 安裝在隨身碟上</p>
<p>不過會一直出現Smartd failed to start 的錯誤訊息</p></p>
<a href="https://h.cowbay.org/post/smartd-failed-to-start-in-freenas/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[碎念]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/incredibly-slow-mdadm-rebuild/">[碎念] mdadm 超級慢的rebuild 速度 Incredibly Slow mdadm Rebuild</a></h4>
<p><p>最近在做一台老機器的P2V</p>
<p>偏偏user說不能關機所以我用dd + ssh 做線上移轉</p>
<p>這部份有空再來寫</p>
<p>只是因為原來的設定有用mdadm 做raid1</p>
<p>這部份導致移轉過去proxmox 後會出現raid degrade 導致無法正常開機</p></p>
<a href="https://h.cowbay.org/post/incredibly-slow-mdadm-rebuild/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/create-portable-vim-environment/">[筆記] 建立一個帶著走的 VIM 環境 Creating portable Vim environment</a></h4>
<p><p>因為工作的關係現在很多時間都花在VIM的操作上</p>
<p>所以之前花了滿多時間調整出一個適合自己的VIM環境</p>
<p>原本的作法是把這個設定好的環境丟到自己建立的gitea 上面</p>
<p>然後每到一台新的機器就要去clone 下來</p></p>
<a href="https://h.cowbay.org/post/create-portable-vim-environment/" class="btn btn-transparent">read more</a>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/synology-ds415-repair-cost/">[雜念] 群暉 Synology NAS DS 415&#43; 誇張的維修費用</a></h4>
<p><p>前幾天公司的一台 Synology DS 415+ 發生異常</p>
<p>注意到的時候,四顆硬碟燈號都不斷的在閃爍</p>
<p>但是已經無法登入系統</p>
<p>重開機之後更慘,四顆硬碟燈號全部橘燈恆亮</p>
<p>底下的電源藍燈不斷的在閃爍</p>
<p>雖然我一再表示不希望送修了</p>
<p>一來是已經過保二來是DS415+ 本身就有intel bug三來是因為對synology的NAS 實在沒有愛&hellip;</p>
<p>不過主管還是希望能夠先問群暉維修的費用多少</p></p>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/10g-lab-using-proxmox-and-mellanox/">[筆記] 用 proxmox &amp; Mellanox SFP 網卡土炮 10G LAB </a></h4>
<p><p>想做一個 10G 的 LAB 環境出來已經很久了。</p>
<p>只是礙於10G RJ45的卡太貴了然後光纖的種類又太複雜</p>
<p>如果直接在淘寶購買,很怕會買錯(什麼LC/FC LC/LC 多模單模 單芯雙芯 SFP/SFP+ 又是什麼光模塊的一大堆規格)</p>
<p>所以一直沒有付諸行動。</p>
<p>硬體的工作很久沒碰了,剛好在蝦皮看到有個賣家在賣 mellanox 的X2網卡以在台灣的價格來說算很便宜的 (550)</p>
<p>聊了一下,跟他請教了關於線材、光纖模塊的問題,回答也都很快很到位</p>
<p>就直接下訂了兩張網卡、兩個光纖模塊、一條LC/LC 光纖線</p>
<p>就是到貨有點久,等了兩個禮拜左右,一直到昨天東西才寄到</p>
<p>今天就花了點時間測試一下</p></p>
<a href="https://h.cowbay.org/post/10g-lab-using-proxmox-and-mellanox/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/ansible-selectattr-filter/">[筆記] 還是 Ansible Selectattr </a></h4>
<p><p>在上一篇 <a href="https://h.cowbay.org/post/ansible-selectattr/">Ansible how to use &lsquo;list&rsquo; in yaml file </a></p>
<p>有提到怎麼用 with_items / set_fact 來取得在yaml 檔案中的清單</p>
<p>不過就是有點醜</p></p>
<a href="https://h.cowbay.org/post/ansible-selectattr-filter/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/ansible-selectattr/">[筆記] Ansible how to use &#39;list&#39; in yaml file </a></h4>
<p><p>這幾天在玩ansible 時,碰到一個問題</p>
<p>假如我有個yaml檔作為資料來源檔名是 abc.yml</p>
<p>大概長這樣</p>
<pre><code> &quot;teams&quot;: [
{
&quot;chinese_name&quot;: &quot;TEAM1&quot;,
&quot;description&quot;: &quot;TEAM1&quot;,
&quot;gid&quot;: 10125,
&quot;location&quot;: [
&quot;hq&quot;
],
&quot;name&quot;: &quot;aa&quot;,
&quot;users&quot;: [
&quot;chen&quot;,
&quot;chou&quot;,
&quot;huani&quot;,
&quot;yey&quot;,
&quot;wa&quot;
]
},
{
&quot;chinese_name&quot;: &quot;TEAM2&quot;,
&quot;description&quot;: &quot;TEAM2&quot;,
&quot;gid&quot;: 10126,
&quot;location&quot;: [
&quot;hq&quot;
],
&quot;name&quot;: &quot;bb&quot;,
&quot;users&quot;: [
&quot;chhiao&quot;,
&quot;chgc&quot;,
&quot;chy&quot;,
&quot;hsi&quot;,
&quot;li&quot;,
&quot;li&quot;,
&quot;chgchi&quot;
]
}
]
</code></pre></p>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><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>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><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>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/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></h4>
<p><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>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/nice-du-report-tool-durep/">Nice Du Report Tool Durep</a></h4>
<p><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>
<a href="https://h.cowbay.org/post/nice-du-report-tool-durep/" class="btn btn-transparent">read more</a>
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<p class="text-uppercase mb-2">[筆記]</p>
<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/bookstack-docker/">Bookstack Docker</a></h4>
<p><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>
<a href="https://h.cowbay.org/post/bookstack-docker/" class="btn btn-transparent">read more</a>
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<h4 class="title-border"><a class="text-dark" href="https://h.cowbay.org/post/enable-synology-public-ssh/">筆記- 啟用群暉NAS (Synology NAS)的SSH Server 透過Publickey 認證免密碼登入</a></h4>
<p><p>公司內有幾台NAS其中有一台用來放開發人員的postgresql dump file
之前都是主要的開發人員上傳到google drive分享出來 ,然後其他人去抓回來</p>
<p>這樣子有個問題是當server要存取這些檔案時就沒辦法了除非透過一些 3rd party的軟體
像是這篇</p>
<p><a href="https://www.omgubuntu.co.uk/2017/04/mount-google-drive-ocamlfuse-linux">https://www.omgubuntu.co.uk/2017/04/mount-google-drive-ocamlfuse-linux</a></p>
<p>或者是這篇</p>
<p><a href="https://www.maketecheasier.com/mount-google-drive-ubuntu/">https://www.maketecheasier.com/mount-google-drive-ubuntu/</a></p>
<p>但是手邊的伺服器原則上除非有必要不然都沒有開放internet
所以導致明明檔案就在那邊,但是要取得就是很麻煩</p></p>
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