Ubuntu 16 超时错误

Question

如果我尝试更新我的 ubuntu

sudo apt-get 更新

最后我得到了错误：

错误http://neurodebian.g-node.org数据InRelease

错误http://neurodebian.g-node.org yakkety InRelease

Err http://neurodebian.g-node.org data Release.gpg 无法连接 到neurodebian.g-node.org:http: Err http://neurodebian.g-node.org yakkety Release.gpg 无法连接到 neurodebian.g-node.org:http: 在 2 分钟 0 秒内获取 3,653 kB (30.4 kB/s) 正在读取包列表...完成 W: 获取失败 http://neurodebian.g-node.org/dists/data/InRelease

W：获取失败 http://neurodebian.g-node.org/dists/yakkety/InRelease

W：获取失败 http://neurodebian.g-node.org/dists/data/Release.gpg 无法 连接到neurodebian.g-node.org:http:

W：获取失败 http://neurodebian.g-node.org/dists/yakkety/Release.gpg 无法 连接到neurodebian.g-node.org:http:

W: 一些索引文件下载失败。他们被忽视了，或者老了 代替使用的。

当我尝试克隆 git 时：

git clone https://github.com/rbenv/rbenv.git ~/.rbenv

我明白了：

致命：无法访问“https://github.com/rbenv/rbenv.git/”：无法连接到 github.com 端口 443：连接超时

如果我尝试使用 Wayback 机器下载器，我会遇到错误：

获取快照页面/usr/lib/ruby/1.9.1/net/http.rb:763:in initialize': Connection timed out - connect(2) (Errno::ETIMEDOUT) from /usr/lib/ruby/1.9.1/net/http.rb:763:inopen' 来自 /usr/lib/ruby/1.9.1/net/http.rb:763:in block in connect' from /usr/lib/ruby/1.9.1/timeout.rb:55:intimeout' 来自 /usr/lib/ruby/1.9.1/timeout.rb:100:in timeout' from /usr/lib/ruby/1.9.1/net/http.rb:763:inconnect' 来自 /usr/lib/ruby/1.9.1/net/http.rb:756:in do_start' from /usr/lib/ruby/1.9.1/net/http.rb:745:instart' 来自 /usr/lib/ruby/1.9.1/open-uri.rb:306:in open_http' from /usr/lib/ruby/1.9.1/open-uri.rb:775:inbuffer_open' 来自 /usr/lib/ruby/1.9.1/open-uri.rb:203:in block in open_loop' from /usr/lib/ruby/1.9.1/open-uri.rb:201:incatch' 来自 /usr/lib/ruby/1.9.1/open-uri.rb:201:in open_loop' from /usr/lib/ruby/1.9.1/open-uri.rb:146:inopen_uri' 来自 /usr/lib/ruby/1.9.1/open-uri.rb:677:in open' from /usr/lib/ruby/1.9.1/open-uri.rb:33:inopen' 来自 /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader/archive_api.rb:8:in get_raw_list_from_api' from /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader.rb:88:in get_all_snapshots_to_consider' 来自 /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader.rb:105:in get_file_list_curated' from /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader.rb:168:in get_file_list_by_timestamp' 来自 /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader.rb:309:in file_list_by_timestamp' from /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/lib/wayback_machine_downloader.rb:192:in download_files' 来自 /var/lib/gems/1.9.1/gems/wayback_machine_downloader-2.2.1/bin/wayback_machine_downloader:72:in <top (required)>' from /usr/local/bin/wayback_machine_downloader:23:inload' 从 /usr/local/bin/wayback_machine_downloader:23:in `'

有什么想法可能是错的吗？

Answer 1

您以一种方式“离线”（拔下电缆）或另一种方式（您的网关不让您出去）。参见例如https://www.a2hosting.com/kb/getting-started-guide/internet-and-networking/troubleshooting-network-connectivity-with-ping-and-traceroute 使用 ping、traceroute 等命令对网络连接进行故障排除