github.com连接超时

 

1.错误信息

之前github都能用,但是今天git clone的时候居然连不上了,报错信息如下:

$ git clone [email protected]:hanchao5272/myreflect.git
Cloning into 'myreflect'...
ssh_dispatch_run_fatal: Connection to 13.250.177.223 port 22: Software caused connection abort fatal: Could not read from remote repository. Please make sure you have the correct access rights and the repository exists.

2.错误分析

于是怀疑是连接不到github.com了,首先在cmd窗口中,尝试ping一下百度

C:\Users\hanchao>ping www.baidu.com

正在 Ping www.a.shifen.com [61.135.169.121] 具有 32 字节的数据: 来自 61.135.169.121 的回复: 字节=32 时间=24ms TTL=57 来自 61.135.169.121 的回复: 字节=32 时间=45ms TTL=57 来自 61.135.169.121 的回复: 字节=32 时间=26ms TTL=57 来自 61.135.169.121 的回复: 字节=32 时间=22ms TTL=57 61.135.169.121 的 Ping 统计信息: 数据包: 已发送 = 4,已接收 = 4,丢失 = 0 (0% 丢失), 往返行程的估计时间(以毫秒为单位): 最短 = 22ms,最长 = 45ms,平均 = 29ms

说明网络连接正常。


然后再ping一下github.com

C:\Users\hanchao>ping github.com

正在 Ping github.com [13.229.188.59] 具有 32 字节的数据: 请求超时。 请求超时。 请求超时。 请求超时。 13.229.188.59 的 Ping 统计信息: 数据包: 已发送 = 4,已接收 = 0,丢失 = 4 (100% 丢失),

确实ping不通。

因此怀疑是:本地DNS无法解析导致的。

3.错误解决

打开C:\Windows\System32\drivers\etc\hosts,内容如下:

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host # localhost name resolution is handled within DNS itself. # 127.0.0.1 localhost # ::1 localhost 0.0.0.0 account.jetbrains.com

发现:确实没有github.com的解析 
在文件末尾添加如下内容,并保存:

192.30.255.112  github.com git 
185.31.16.184 github.global.ssl.fastly.net 

重启cmd窗口,继续ping一下github.com

正在 Ping github.com [192.30.255.112] 具有 32 字节的数据: 来自 192.30.255.112 的回复: 字节=32 时间=311ms TTL=48 来自 192.30.255.112 的回复: 字节=32 时间=365ms TTL=48 来自 192.30.255.112 的回复: 字节=32 时间=376ms TTL=48 来自 192.30.255.112 的回复: 字节=32 时间=353ms TTL=48 192.30.255.112 的 Ping 统计信息: 数据包: 已发送 = 4,已接收 = 4,丢失 = 0 (0% 丢失), 往返行程的估计时间(以毫秒为单位): 最短 = 311ms,最长 = 376ms,平均 = 351ms
  • 说明,本机已经能够正常解析github.com这个域名了。至此,问题解决

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转载自www.cnblogs.com/shoshana-kong/p/11003383.html