Notice: The certificate for TLS must be .cer extension

[elliott10]

• The certificate for TLS must be .cer extension.
  Content-Type: application/pkix-cert

• And if you have encountered error:
  E v2ray : v2ray.com/core/transport/internet/tls: failed to load system root certificate > v2ray.com/core/transport/internet/tls: append cert to root
  Please refer to this: Fix passing self signed cert via arg/env v2ray-plugin#128

[jeffshead]

I have Shadowsocks and v2ray-plugin installed on a CentOS 7 server. It is set up with Caddy and has a Let’s Encrypt SSL cert (i.e., ws+tls+web).

How do you install the cert in the Android Shadowsocks app? I installed the v2ray Plugin and under the v2ray settings, is an option to add the Certificate for TLS verification. I have downloaded the cert to the phone and tried to select it but the v2ray plugin will not import it. I gave the cert a .cer extension and I also tried .crt.

Also, since it's a Let's Encrypt cert, it's only good for 90 days. Is it necessary to add the cert to the Android v2ray plugin? It seems to work without it.

[elliott10]

Download shadowsocks on GooglePlay, then download v2ray-plugin on F-droid.
Because the v2ray-plugin on GooglePlay does not work properly.

After configure a server with a certificate from Let’s Encrypt, copy the xxx.pem certificate to Android directory /sdcard/Download/. Rename the xxx.pem file to xxx.cer

In shadowsocks app profile, select the v2ray plugin with websocket-tls transport mode, your server domain name. Click "BROWSE..." in "Certificate for TLS verification", then select the /sdcard/Download/xxx.cer

v2ray-plugin from F-droid works fine in Android 8.