- 先ping一下試試
liutiesongdeMacBook-Pro-2:test1231 liutiesong$ ping github.com
PING github.com (13.250.177.223): 56 data bytes
Request timeout for icmp_seq 0
Request timeout for icmp_seq 1
Request timeout for icmp_seq 2
Request timeout for icmp_seq 3
Request timeout for icmp_seq 4
Request timeout for icmp_seq 5
Request timeout for icmp_seq 6
Request timeout for icmp_seq 7
Request timeout for icmp_seq 8
Request timeout for icmp_seq 9
Request timeout for icmp_seq 10
Request timeout for icmp_seq 11
Request timeout for icmp_seq 12
Request timeout for icmp_seq 13
Request timeout for icmp_seq 14
Request timeout for icmp_seq 15
^C
--- github.com ping statistics ---
17 packets transmitted, 0 packets received, 100.0% packet loss
- 修改host文件
cmd + shift + g
前往路徑：/etc/hosts
文件尾部追加：
140.82.114.3 github.com
199.232.5.194 github.global.ssl.fastly.net
- 終端指令刷新DNS
sudo killall -HUP mDNSResponder;say DNS cache has been flushed
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