<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-firefox-extension/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/init-script-in-openwrt-to-start-leproxy/ "> Init Script in Openwrt to Start Leproxy/在openwrt 新增自動啟動leproxy的script</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/init-script-in-openwrt-to-start-leproxy/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-firefox-extension/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/auto-fetch-wildcard-ssl-certs-acme-dns-lego/ "> auto fetch Wildcard ssl certs with lego + acme-dns ( Domain Register : Namecheap)</a>
<ahref="https://h.cowbay.org/post/init-script-in-openwrt-to-start-leproxy/ "> Init Script in Openwrt to Start Leproxy/在openwrt 新增自動啟動leproxy的script</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/auto-fetch-wildcard-ssl-certs-acme-dns-lego/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/init-script-in-openwrt-to-start-leproxy/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/cloudcmd-web-file-manager/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/auto-fetch-wildcard-ssl-certs-acme-dns-lego/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/cloudcmd-web-file-manager/ "> [筆記] WEB 檔案管理 Cloudcmd Web File Manager</a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>感覺最近應該會用到類似這樣的功能，趁著最近比較閒一點</p>
<p>就把系統弄起來玩玩看，順便建立ansible 的playbook</p>
<p>最近又接到之前處理過的需求，要讓使用者可以在外部上傳、編輯 yaml 檔案</p>
<p>之前是用 gohttpd 來做</p>
<p>可是不支援線上編輯 yaml 檔案</p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/various-self-hosted-file-sharing-system-test/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/cloudcmd-web-file-manager/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-postgresql-pg_strom-nvidia_driver-cuda-in-ubuntu-20.04/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/various-self-hosted-file-sharing-system-test/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/inx-collect-detail-hardware-info/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/transfer-file-content-using-xclip-in-terminal/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/log-all-bash-commands/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/inx-collect-detail-hardware-info/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/fix-zpool-device-busy-using-dmsetup/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/log-all-bash-commands/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/transfer-cent62-using-rsync/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/fix-zpool-device-busy-using-dmsetup/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/command_to_test_main_ssl/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/transfer-cent62-using-rsync/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-timeshift-on-ubuntu1804/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/command_to_test_main_ssl/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-ubuntu1804-on-dell-6ir-raid-controller/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-timeshift-on-ubuntu1804/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ubuntu-1804-install-root-on-raid/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-ubuntu1804-on-dell-6ir-raid-controller/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="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>
<ahref="https://h.cowbay.org/post/ubuntu-1804-install-root-on-raid/ "> Ubuntu 1804 Install Root on Raid</a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>這兩天在弄兩台Freenas ，準備當作Proxmox 的Storage & 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>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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/smartd-failed-to-start-in-freenas/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ubuntu-1804-install-root-on-raid/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<p>這兩天在弄兩台Freenas ，準備當作Proxmox 的Storage & 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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/incredibly-slow-mdadm-rebuild/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/smartd-failed-to-start-in-freenas/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/create-portable-vim-environment/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/incredibly-slow-mdadm-rebuild/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/synology-ds415-repair-cost/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/create-portable-vim-environment/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/10g-lab-using-proxmox-and-mellanox/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/synology-ds415-repair-cost/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ansible-selectattr-filter/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/10g-lab-using-proxmox-and-mellanox/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ansible-selectattr/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<p>在上一篇 <ahref="https://h.cowbay.org/post/ansible-selectattr/">Ansible how to use ‘list’ in yaml file </a></p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ansible-selectattr-filter/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="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>
<ahref="https://h.cowbay.org/post/ansible-selectattr/ "> [筆記] Ansible how to use 'list' in yaml file </a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/change-preferred-language-in-firefox/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<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>"teams": [
{
"chinese_name": "TEAM1",
"description": "TEAM1",
"gid": 10125,
"location": [
"hq"
],
"name": "aa",
"users": [
"chen",
"chou",
"huani",
"yey",
"wa"
]
},
{
"chinese_name": "TEAM2",
"description": "TEAM2",
"gid": 10126,
"location": [
"hq"
],
"name": "bb",
"users": [
"chhiao",
"chgc",
"chy",
"hsi",
"li",
"li",
"chgchi"
]
}
]
</code></pre>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ansible-selectattr/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="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>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<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>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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/copy_role_in_pgsql/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/change-preferred-language-in-firefox/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<p>這是發生在一個夜黑風高的寂寥深夜….. ( What The FXXX … )</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 “Build Server”</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…</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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/weird-client-server-connection/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/copy_role_in_pgsql/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<p>這是發生在一個夜黑風高的寂寥深夜….. ( What The FXXX … )</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 “Build Server”</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…</p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/nice-du-report-tool-durep/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/weird-client-server-connection/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/bookstack-docker/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/nice-du-report-tool-durep/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/bookstack-docker/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/install-postgresql-pg_strom-nvidia_driver-cuda-in-ubuntu-20.04/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/wireguard-pihole-in-ubuntu-20.04/ "> [筆記] 在 ubuntu 20.04 上安裝 wireguard + pihole 作 AD Blocking/install wireguard and pihole to do ad block in ubuntu 20.04 </a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/wireguard-pihole-in-ubuntu-20.04/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ubuntu-letsencrypt-cloudflare-wildcard/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/check-port-speed-in-openwrt/ "> [筆記] 在openwrt 中檢查網路埠的連接速度/ Check Port Speed in Openwrt</a>
<ahref="https://h.cowbay.org/post/wireguard-pihole-in-ubuntu-20.04/ "> [筆記] 在 ubuntu 20.04 上安裝 wireguard + pihole 作 AD Blocking/install wireguard and pihole to do ad block in ubuntu 20.04 </a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>最近在玩ansible + openwrt + wireguard</p>
<p>ansible 腳本寫好之後，可以把config 佈署到 openwrt 上</p>
<p>當然前提是最好用同樣的機器，不同的機器在config 上會有一些差異</p>
<p>但是這些差異常常就會造成無法連線、無法使用的狀況</p>
<p>BTW 我是用 ubiquiti 的 edgerouter X 來做</p>
<p>都弄好之後，就想說來跑個iperf3 測試一下連線速度</p>
<p>也好和之前做的 IPSEC 比較一下</p>
<p>結果很奇怪的是，明明一樣的機器、一樣用ansible 跑出來的config</p>
<p>但是有一台edgerouter X 的VPN 連接速度就是特別慢</p>
<p>而且速度都剛好卡在 99.X Mb 左右</p>
<p>就讓我很納悶了…</p>
<p>手機上的廣告越來越討厭了</p>
<p>但是用手機看頁面、影片的機會越來越高</p>
<p>所以一直想看看有沒有什麼方式可以解決這個問題</p>
<p>不只可以用在safari 上，連APP 裡面的廣告最好都能夠擋掉</p>
<p>在github上面看到有個專案是 wireguard + pihole</p>
<p>滿有趣的，就來研究一下</p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/check-port-speed-in-openwrt/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/wireguard-pihole-in-ubuntu-20.04/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/debian-buster-server-been-hacked/ "> [筆記] Debian Buster 伺服器被入侵了！/ Debian Buster Server Been Hacked</a>
<ahref="https://h.cowbay.org/post/check-port-speed-in-openwrt/ "> [筆記] 在openwrt 中檢查網路埠的連接速度/ Check Port Speed in Openwrt</a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>上禮拜某天在開會的時候，LINE不斷傳來訊息</p>
<p>不過因為我向來開會都很認真(驕傲，所以都沒看，接著就變成來電了</p>
<p>看來大概有啥事發生</p>
<p>不過畢竟不是正職的工作，就先放著吧</p>
<p>後來變成連學長都直接打來告訴我，某間公司的伺服器出事了，客戶找不到我</p>
<p>叫我趕快連進去看</p>
<p>是說，啊我又沒跟人家簽維護，趕什麼趕…</p>
<p>總之，開完會後就了解一下狀況</p>
<p>最近在玩ansible + openwrt + wireguard</p>
<p>ansible 腳本寫好之後，可以把config 佈署到 openwrt 上</p>
<p>當然前提是最好用同樣的機器，不同的機器在config 上會有一些差異</p>
<p>但是這些差異常常就會造成無法連線、無法使用的狀況</p>
<p>BTW 我是用 ubiquiti 的 edgerouter X 來做</p>
<p>都弄好之後，就想說來跑個iperf3 測試一下連線速度</p>
<p>也好和之前做的 IPSEC 比較一下</p>
<p>結果很奇怪的是，明明一樣的機器、一樣用ansible 跑出來的config</p>
<p>但是有一台edgerouter X 的VPN 連接速度就是特別慢</p>
<p>而且速度都剛好卡在 99.X Mb 左右</p>
<p>就讓我很納悶了…</p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/debian-buster-server-been-hacked/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="https://h.cowbay.org/post/debian-buster-server-been-hacked/ "> [筆記] Debian Buster 伺服器被入侵了！/ Debian Buster Server Been Hacked</a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>工作用的電腦，昨天終於難得的reboot了(uptime 看了一下，大概是三百多天)</p>
<p>結果重開機之後，發現原本在打tunnel 連 ptt 的 wireguard VPN 掛掉了</p>
<p>手動下指令也啟動不了</p>
<p>查了一下發現是 ubuntu 18.04 kernel 4.15.0-106 的包</p>
<p>看來就連kernel 最好都不要自動升級…</p>
<p>上禮拜某天在開會的時候，LINE不斷傳來訊息</p>
<p>不過因為我向來開會都很認真(驕傲，所以都沒看，接著就變成來電了</p>
<p>看來大概有啥事發生</p>
<p>不過畢竟不是正職的工作，就先放著吧</p>
<p>後來變成連學長都直接打來告訴我，某間公司的伺服器出事了，客戶找不到我</p>
<p>叫我趕快連進去看</p>
<p>是說，啊我又沒跟人家簽維護，趕什麼趕…</p>
<p>總之，開完會後就了解一下狀況</p>
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<p>結果重開機之後，發現原本在打tunnel 連 ptt 的 wireguard VPN 掛掉了</p>
<p>手動下指令也啟動不了</p>
<p>查了一下發現是 ubuntu 18.04 kernel 4.15.0-106 的包</p>
<p>看來就連kernel 最好都不要自動升級…</p>
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<p>就來玩玩看promox 加上 synology high availability 再加上 NFS share 的環境</p>
<p>早上忘了要幹什麼，去看到手上的自然人憑證到期日是今年的 4/17</p>
<p>想說快到期了，看看能不能線上申請展延</p>
<p>結果辦公室沒有Linux 可以用的讀卡機</p>
<p>OOXX 咧，我們可是號稱全Linux 環境捏！</p>
<p>結果居然沒有對應的硬體！？</p>
<p>於是馬上敗了一台據說有支援 Linux 的 IT 850UM 讀卡機！</p>
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<p>就來玩玩看promox 加上 synology high availability 再加上 NFS share 的環境</p>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/first-try-synology-ha/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/first-try-synology-ha/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/rescue-synology-nas-with-ubuntu-livecd/ "> [筆記] 用ubuntu livecd 救援群暉 synology NAS內的資料 / rescue synology nas with ubuntu livecd</a>
<ahref="https://h.cowbay.org/post/postgresql-pgbench-benchmark/ "> [筆記] postgresql 效能測試 / postgresql benchmakr using pgbench</a>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<p>2020/01/02 , 2020年上工的第一天，群暉的 DS415+ NAS 掛了！</p>
<p>因為群暉的文件在最關鍵的一步寫得亂七八糟！</p>
<p>所以在這邊紀錄一下我操作的步驟！</p>
<p>昨天老闆在slack 上面問說現在的幾台 DB Server 有沒有跑過 pgbench</p>
<p>分數大概如何，想要跟他的筆電做個比較</p>
<p>之前有跑過幾次，這次就順便測試一下不同的硬體配置、以及不同的軟體版本</p>
<p>對於pgbench 跑分會有多大的影響</p>
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<p>2020/01/02 , 2020年上工的第一天，群暉的 DS415+ NAS 掛了！</p>
<p>因為群暉的文件在最關鍵的一步寫得亂七八糟！</p>
<p>所以在這邊紀錄一下我操作的步驟！</p>
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<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/test-pg_prewarm/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ansible-ssh-forwardagent/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/accidentally-typed-an-extra-space-in-ansible-playbook/ "> [筆記] 在ansible playbook中不小心多打了一個空格 / Accidentally Typed an Extra Space in Ansible Playbook</a>
<ahref="https://h.cowbay.org/post/test-pg_prewarm/ "> [筆記] 測試 postgresql 的pg_prewarm 對效能的影響 / test pg_prewarm in postgresql 11</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/accidentally-typed-an-extra-space-in-ansible-playbook/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/test-pg_prewarm/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/add-system-wide-favorite-apps-in-dconf/ "> 在ubuntu 18.04中，透過 dconf 設定系統層級的「我的最愛」/ Add System Wide Favorite Apps in dock with Dconf in ubuntu 18.04</a>
<ahref="https://h.cowbay.org/post/accidentally-typed-an-extra-space-in-ansible-playbook/ "> [筆記] 在ansible playbook中不小心多打了一個空格 / Accidentally Typed an Extra Space in Ansible Playbook</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/add-system-wide-favorite-apps-in-dconf/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="https://h.cowbay.org/post/ubuntu-dconf-proxy-settings/ "> [筆記] ubuntu 18.04 透過 dconf 修改系統 proxy / modify system proxy with dconf in ubuntu 18.04 </a>
<ahref="https://h.cowbay.org/post/add-system-wide-favorite-apps-in-dconf/ "> 在ubuntu 18.04中，透過 dconf 設定系統層級的「我的最愛」/ Add System Wide Favorite Apps in dock with Dconf in ubuntu 18.04 </a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ubuntu-dconf-proxy-settings/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="https://h.cowbay.org/post/awesome-all-in-one-vpn-server-streisand/ "> [筆記] 超強的ALL-in-One VPN Server streisand / Awesome All in One Vpn Server Streisand</a>
<ahref="https://h.cowbay.org/post/ubuntu-dconf-proxy-settings/ "> [筆記] ubuntu 18.04 透過 dconf 修改系統 proxy / modify system proxy with dconf in ubuntu 18.04</a>
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<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/ubuntu-dconf-proxy-settings/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="https://h.cowbay.org/post/awesome-all-in-one-vpn-server-streisand/ "> [筆記] 超強的ALL-in-One VPN Server streisand / Awesome All in One Vpn Server Streisand</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/recommended-ulauncher-in-ubuntu-1804/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/pg_auto_failover_in_ubuntu_1804_psql_11/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="https://h.cowbay.org/post/bencmark-with-external-internal-nvme-ssd-and-external-sata-ssd/ "> [筆記] 測試 USB 3.1 Gen2 NVME SSD 外接盒 & 內建pci-e ssd & 外接SATA SSD / Bencmark With External Internal Nvme Ssd and External Sata Ssd</a>
<ahref="https://h.cowbay.org/post/pg_auto_failover_in_ubuntu_1804_psql_11/ "> [筆記] 在ubuntu 18.04安裝psql 11 以及 pg_auto_failover / install psql 11 and pg_auto_failover in ubuntu 18.04</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/bencmark-with-external-internal-nvme-ssd-and-external-sata-ssd/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="https://h.cowbay.org/post/bencmark-with-external-internal-nvme-ssd-and-external-sata-ssd/ "> [筆記] 測試 USB 3.1 Gen2 NVME SSD 外接盒 & 內建pci-e ssd & 外接SATA SSD / Bencmark With External Internal Nvme Ssd and External Sata Ssd</a>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/postgresql-backup-restore-using-zfs-snapshot/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<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…</p>
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<ahref="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>
<ahref="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>
<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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/multiple-site-to-site-vpn-using-wireguard/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
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<ahref="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>
<ahref="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>
<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>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/site-to-site-vpn-using-wireguard-in-two-edgerouters/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<divclass="more-link-wrapper"><aclass="more-link"href="https://h.cowbay.org/post/multiple-site-to-site-vpn-using-wireguard/">Read the post<spanclass="screen-reader-text">This is a Standard Post</span></a></div>
<ahref="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>
<ahref="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>
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<ahref="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>
<ahref="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>
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<ahref="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>
<ahref="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>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<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>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….</p>
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<ahref="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>
<ahref="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>
</h2>
</div>
<divclass='excerpt-content'>
<article>
<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…</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>
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<ahref="https://h.cowbay.org/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>
<ahref="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>
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<ahref="https://h.cowbay.org/post/install-asus-10g-nic-in-proxmox/ "> Install Asus 10G NIC XG-C100C in Proxmox</a>
<ahref="https://h.cowbay.org/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>
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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>
<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>
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