背景
https://talkgo.org/ 在国内访问的速度比较慢，所以就想着能不能在大原则：不更换服务器供应商的情况下，得到一定的解决。
从 DigitalOcean 的 SFO 2（San Francisco!）迁移到 SGP1。
尝试创建服务器的时候，发现不能从 snapshot 中恢复到 SGP1 服务器中。
搜索得到解决方案
https://bobcares.com/blog/digitalocean-create-droplet-from-snapshot/
- Create Droplet from snapshot in different region
We’ve seen customers complain that they get the below error when creating a Droplet from a snapshot in a different region.
The image you specified is not available in the selected region, you can make it globally available by initiating an image region transfer from the images tab.
解决方案：
In order to create a Droplet from a snapshot taken in another datacenter, this snapshot should be transferred to the region where the new Droplet should be created.
Our Support Engineers transfer the snapshot to other regions from Snapshots > Droplet snapshots > More > Add to region > Click on region name. to fix this issue.
DNS 配置
因为新申请机器有新的 IP，所以还需要配置一下 Cloudflare 上面的 DNS ，给 talkgo.org 指定新的 IP 地址。
检测 traceoute
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traceroute: Warning: talkgo.org has multiple addresses; using 104.18.32.60
traceroute to talkgo.org (104.18.32.60), 64 hops max, 52 byte packets
1 192.168.31.1 1.695 ms 1.145 ms 1.406 ms
2 192.168.1.1 2.490 ms 3.541 ms 2.611 ms
3 172.48.0.1 2.914 ms 2.854 ms 4.489 ms
4 183.233.83.213 3.755 ms 3.687 ms 3.896 ms
5 211.136.248.229 4.907 ms
211.136.248.225 3.917 ms
211.136.248.81 3.757 ms
6 221.183.13.169 7.773 ms
221.183.24.73 8.491 ms 7.770 ms
7 221.176.18.110 7.878 ms
221.176.22.106 12.514 ms
221.183.68.141 8.124 ms
8 221.176.19.190 12.258 ms
221.176.19.198 11.550 ms
221.176.19.42 8.641 ms
9 221.183.55.77 14.100 ms 10.147 ms 10.561 ms
10 223.120.2.101 15.455 ms
223.120.2.85 15.482 ms
223.120.2.81 16.170 ms
11 223.120.2.118 14.981 ms 14.746 ms 14.258 ms
12 134.159.128.213 18.369 ms 17.115 ms 16.887 ms
13 202.84.157.38 14.602 ms 15.238 ms 15.851 ms
14 202.84.143.41 67.768 ms 65.121 ms 71.545 ms
15 202.127.69.182 60.488 ms 63.917 ms 67.805 ms
16 104.18.32.60 57.883 ms 58.748 ms 58.174 ms
北方的 traceout
1 202.97.80.125 (202.97.80.125) 13.099 ms 15.315 ms 14.971 ms
2 202.97.34.158 (202.97.34.158) 14.169 ms
3 202.97.12.62 (202.97.12.62) 21.245 ms 18.355 ms 15.856 ms
4 202.97.27.190 (202.97.27.190) 169.828 ms 170.080 ms 168.125 ms
5 202.97.92.37 (202.97.92.37) 172.055 ms 167.495 ms 168.079 ms
6 218.30.54.214 (218.30.54.214) 197.341 ms 200.079 ms 193.218 ms
7 172.67.210.27 (172.67.210.27) 171.300 ms 171.359 ms 172.522 ms
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