[SOLVED] Blynk Server

Blynk Servers Local Blynk Server
5

Yes, Sorry, my mistake. I have added server.crt in server.properties

6

On docs.blynk.cc, in “Advanced local server setup” paragraph, and in the row “See how to generate self-signed certificates here”, if i clic on “here” it do nothing? Can you try that?

7

@tannox91 you are right. Fixed.

8

With this command openssl pkcs8 -topk8 -inform PEM -outform PEM -in server.key -out server.pem it ask me an Encryption password, i have to use a new one password? Where i’ll have to use this password?

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You have to put it in the server.properties file.

10

Ok, so i have used this command:

openssl req -x509 -nodes -days 1825 -newkey rsa:2048 -keyout server.key -out server.crt
openssl pkcs8 -topk8 -inform PEM -outform PEM -in server.key -out server.pem

In the last one command in encryption password i insert, for example “HelloWorld”
After that i have modified server.properties, now i have:

server.ssl.cert= ./server.crt
server.ssl.key= ./server.pem
server.ssl.key.pass= HelloWorld

Is that correct?

11

I have done everything from zero. And always the same problem, then i tried to use a older version of server.jar.
So, with 0.16.1 and 0.16.0 versions, the server start but blynk.log show that there are problem with certificates.
But with 0.15.4, 0.15.3, 0.15.1 and 0.9.1 everything is ok, and blynk.log show me one warning relative to client certificate.

This is the blynk.log of 0.16.* versions

15:27:19.556 INFO  - Using data dir '/path'
15:27:19.708 INFO  - Initializing mail transport. Username : myemail@gmail.com. SMTP host : smtp.gmail.com:587
15:27:20.218 INFO  - Plain tcp/ip hardware server port 8442.
15:27:21.118 INFO  - SSL hardware port 8441.
15:27:21.128 WARN  - Found server certificates but no client certificate for '/home/User/Blynk' path. Using one way ssl.
15:27:21.139 INFO  - Application server port 8443.
15:27:21.198 INFO  - HTTP API port 8080.
15:27:21.212 WARN  - ATTENTION. Certificate /home/User/Blynk and key /home/User/Blynk paths not valid. Using embedded certs. This is not secure. Please replace it with your own certs.
15:27:21.448 INFO  - HTTPS API port 9443.
15:27:21.460 WARN  - ATTENTION. Certificate /home/User/Blynk and key /home/User/Blynk paths not valid. Using embedded certs. This is not secure. Please replace it with your own certs.
15:27:21.623 INFO  - HTTPS admin UI port 7443.
15:27:21.624 INFO  - Web Sockets port 8082.
15:27:21.624 WARN  - ATTENTION. Certificate /home/User/Blynk and key /home/User/Blynk paths not valid. Using embedded certs. This is not secure. Please replace it with your own certs.
15:27:21.719 INFO  - Web SSL Sockets port 8081.

This is the blynk.log of 0.15.* versions and 0.9.1

15:21:21.481 INFO  - Using data dir '/path'
15:21:21.633 INFO  - Initializing mail transport. Username : myemail@gmail.com. SMTP host : smtp.gmail.com:587
15:21:22.191 INFO  - Plain tcp/ip hardware server port 8442.
15:21:23.115 INFO  - SSL hardware port 8441.
15:21:23.119 WARN  - Found server certificates but no client certificate for '/home/User/Blynk' path. Using one way ssl.
15:21:23.132 INFO  - Application server port 8443.
15:21:23.155 INFO  - HTTP API port 8080.
15:21:23.166 INFO  - HTTPS API port 9443.
15:21:23.187 INFO  - HTTPS admin UI port 7443.
15:21:23.220 INFO  - HTTP reset pass port 7444.
15:21:23.221 INFO  - Web Sockets port 8082.
15:21:23.229 INFO  - Web SSL Sockets port 8081.
12

@tannox91 nice catch. You may ignore that for now. In next version it will be fixed.

13

So solution for who like me want your own certificate is to use older version of server.jar than 0.16.*

14

Another question, is it normal that energy balance is 2000 on local server, and 4000 on Blynk server?

15

Yes.

No. You can use 0.16.1. As I said you may ignore those warning.

16

Great! I misunderstood, I thought to skipping last version. So i change title of discussion.
However, can i know why there is this difference of energy balance between local server and Blynk server?
Thanks Dmitriy and thanks Lichtsignaal for your helps and time.

17

Because local server if fully local and not related in any way with Blynk Cloud :wink:?

18

Understand, thanks for everything Dmitriy :relaxed:

19

@Dmitriy are you sure it is 2K for local server and 4K for Blynk server as one of my contacts set up an account and they received 2K with the Blynk server, which is what I thought they should receive?

20

@Costas 2k is correct. I think @tannox91 either paid or get some bonus from us :wink:

21

Oh I see, your reply to @tannox91 was simply to confirm the Energy accounts are different for the 2 systems, rather than they are 2K and 4K.

22

Hello,

I am trying to create my own application to control my two arduino located in two different networks (home and office) so I am using the local blynk server to generate tokens for the uniqueness low over the internet, do you have any idea how can I control them without using blynk application ? I meant if I can create my own application and what will be the used protocol.

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A post was split to a new topic: Blynk legacy local server IP question

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