昨天幫忙升級全部
AWS RPM 套件，升級過程本來很順利，不過不知道哪一個 RPM 造成 SSH 全面斷線，接著我直接到
AWS Management Console 把機器 restart，登入系統之後下 yum update，直接給我噴出底下錯誤訊息
---> Package zlib.i686 0:1.2.3-24.7.amzn1 will be updated
---> Package zlib.i686 0:1.2.3-25.8.amzn1 will be an update
--> Finished Dependency Resolution
You could try using --skip-broken to work around the problem
** Found 155 pre-existing rpmdb problem(s), 'yum check' output follows:
audit-libs-2.1-5.15.amzn1.x86_64 is a duplicate with audit-libs-2.0.4-1.14.amzn1.x86_64
authconfig-6.1.12-5.14.amzn1.x86_64 is a duplicate with authconfig-6.1.4-6.13.amzn1.x86_64
basesystem-10.0-4.9.amzn1.noarch is a duplicate with basesystem-10.0-4.8.amzn1.noarch
bash-4.1.2-8.14.amzn1.x86_64 is a duplicate with bash-4.1.2-3.13.amzn1.x86_64
binutils-2.20.51.0.2-5.20.17.amzn1.x86_64 is a duplicate with binutils-2.20.51.0.2-5.12.15.amzn1.x86_64
cloud-init-0.5.15-16.amzn1.noarch is a duplicate with cloud-init-0.5.15-8.amzn1.noarch
coreutils-8.4-13.13.amzn1.x86_64 is a duplicate with coreutils-8.4-9.12.amzn1.x86_64
coreutils-libs-8.4-13.13.amzn1.x86_64 is a duplicate with coreutils-libs-8.4-9.12.amzn1.x86_64
cpp-4.4.5-6.35.amzn1.x86_64 is a duplicate with cpp-4.4.4-13.33.amzn1.x86_64
Continue reading “AWS 機器上 duplicated RPM 問題”
寫這篇最主要推廣讓網站都支援 HTTPS 加密連線及 HTTP2 協定，對於網站為什麼要支援 HTTP2，可以直接參考 ihower 寫的說明文章，最近在玩 Facebook, Line, Telegram Bot 時，填寫 Webhook URL，都強制要填寫 https:// 開頭，所以更不能忽略 HTTPS 了。，去年底寫了一篇 Let’s Encrypt 開放申請免費 SSL 憑證 推廣 Let’s Encrypt 的貢獻，讓買不起憑證，又想玩看看 HTTP2 的開發者可以用很簡單的方式來安裝及自動更新憑證，而 gslin 大為了推廣 HTTPS 也做了一個網站教學，文章寫得相當清楚，支援 Apache 及 Nginx 設定。
Continue reading “申請 Let’s Encrypt 免費憑證讓網站支援 HTTP2” 
