本篇文章更新時間：2019/02/16
如有資訊過時或語誤之處，歡迎使用 Contact 功能通知。
一介資男的 LINE 社群開站囉！歡迎入群聊聊～
如果本站內容對你有幫助，歡迎使用 BFX Pay 加密貨幣 或 新台幣 贊助支持。
這問題時不時會出現在安裝新機器的時候，之前好像是「反正就放給他timeout」的消極做法，剛剛居然谷歌到神方法！
參考：apt-get update stuck: Connecting to security.ubuntu.com
一堆解法說：「乾脆你就把 IPv6 給關了吧！ 」這種又血腥又暴力的做法我實在不是很想用～
這次的解法是針對請求內容時「IPv4 的權重為先」，如此而已！方法如下：
vi /etc/gai.conf
找到 #precedence ::ffff:0:0/96 100 然後解註解，存擋，搞定！
#技術相關 #IPv6 #IPv4 #Ubuntu #VPS #Server #Stuck #apt-get
- Powered by Mxp.TW -FB2WP-
印象中不用這麼麻煩 apt-get 有直接可以用 Ipv4 的選項
是這篇（http://unix.stackexchange.com/questions/9940/convince-apt-get-not-to-use-ipv6-method）
提到的方式？ 似乎程序沒差多少啊ＸＤ
我有更阿Ｑ的方法
把更新來源換到只有 IPv4 的站台就好了 例如 http://ftp.ntou.edu.tw
也是一招沒錯～
Encountering installation issues while setting up a new server can be frustrating. I recently faced a similar problem when trying to run `apt-get update`, where it would freeze when connecting to security.ubuntu.com. After reading numerous guides, the advice to “just turn off IPv6” was a common suggestion. However, I didn’t want to disable it entirely.
I found a more elegant solution that involves simply prioritizing IPv4 over IPv6. By editing the `/etc/gai.conf` file and uncommenting the line `#precedence ::ffff:0:0/96 100`, I was able to resolve the issue and continue with the update process smoothly.
During my troubleshooting journey, I also found a helpful guide on install python ubuntu, which provided valuable insights for other aspects of my server configuration. Happy to share this solution in case it helps someone else.