手动查看了caddy状态，结果如下：

systemctl status caddy

caddy.service - Caddy
Loaded: loaded (/usr/lib/systemd/system/caddy.service; enabled)
Active: failed (Result: exit-code) since Fri 2020-09-04 15:24:37 PDT; 10s ago
Docs: https://caddyserver.com/docs/
Process: 11285 ExecStart=/usr/bin/caddy run --environ --config /etc/caddy/Caddyfile (code=exited, status=1/FAILURE)
Main PID: 11285 (code=exited, status=1/FAILURE)

Sep 04 15:24:37 haha004 caddy[11285]: LOGNAME=caddy
Sep 04 15:24:37 haha004 caddy[11285]: USER=caddy
Sep 04 15:24:37 haha004 caddy[11285]: {"level":"info","ts":1599258277.6490595,"msg":"using provided configuration","config_file":"/etc/caddy/Caddyfile","config_adapter":""}
Sep 04 15:24:37 haha004 caddy[11285]: {"level":"info","ts":1599258277.7387247,"logger":"admin","msg":"admin endpoint started","address":"tcp/localhost:2019","enforce_origin":f...0.0.1:2019"]}
Sep 04 15:24:37 haha004 caddy[11285]: {"level":"info","ts":1599258277.7389452,"logger":"http","msg":"server is listening only on the HTTP port, so no automatic HTTPS will be a...ttp_port":80}
Sep 04 15:24:37 haha004 caddy[11285]: {"level":"info","ts":1599258277.7390044,"logger":"tls.cache.maintenance","msg":"started background certificate maintenance","cache":"0xc00036e380"}
Sep 04 15:24:37 haha004 caddy[11285]: run: loading initial config: loading new config: http app module: start: tcp: listening on :88: listen tcp :88: bind: permission denied
Sep 04 15:24:37 haha004 caddy[11285]: {"level":"info","ts":1599258277.7392395,"logger":"tls","msg":"cleaned up storage units"}
Sep 04 15:24:37 haha004 systemd[1]: caddy.service: main process exited, code=exited, status=1/FAILURE
Sep 04 15:24:37 haha004 systemd[1]: Unit caddy.service entered failed state.
Hint: Some lines were ellipsized, use -l to show in full.

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这个显示，Caddy在88端口上监听被禁止。

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防火墙关闭了，可能是其它程序暂用了，后来换了其它脚本解决了。

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我用的是nginx相关的搭建脚本

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看来需要换一个端口。配置文件中不能设置88了。

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正在安装Trojan-go......
curl -o /tmp/trojan-go.sh https://raw.githubusercontent.com/proxysu/shellscript/master/trojan-go.sh

yes | bash /tmp/trojan-go.sh -f
error: Failed to get release list, please check your network.

rm -f /tmp/trojan-go.sh

find / -name trojan-go

安装失败,脚本运行出错！

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CentOS7系统搭建trojan-go就会出现这个错误，测试了多次

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用的最新客户端版本

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看提示是获取不到列表

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CentOS7搭建v2ray的ws+tls+caddy也会有这种安装失败的提示

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全新CentOS7系统

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