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  • Hello, I'm quite new to mango and I have a question. I have a MangoEs box and I want to connect remotely to it, but my external IP looks like this 123.456.789.25. Can I make it to look like a HTTPS address?

    Thank you!

  • Hi @sky_watcher

    I assume your external IP which you provided is your own modem IP (router). And your MangoES is connected into your local network. You should first see port forwarding to make it secure and to make your router forward remote connections to your ES. This is not good practice as you will be providing to everyone your router which is not a server per say.

    See, for more information->

    Secondly you should buy a domain to get an human understandable address. for an example.

    After buying a domain you can assign this domain dns to be linked with your ip address. Then you would have to wait for a few hours after your dns settings have been updated through all dns servers.

    Then if you go to your bought domain name through your browser then the dns server which you are using for your computer will connect you remotely to your assigned IP address.

    More information is in available like this.


  • Hi sky_watcher,

    Thomas definitely gave good information if you're going to be hosting this as a website for a client. It definitely looks better for you if you are sending them to a human readable address and if your HTTPS has a valid certificate from a certificate authority.


    Whoa, are those nine and ten bit octets I see :P

    What Thomas's answer is omitting is that you can create a self signed certificate in a java keystore and start running Mango on HTTPS without doing all the things he rightly recommended. You can find instructions on creating a self signed keystore and setting Mango up to use it in the "SSL Settings" section of this help page:

  • Another thing that was not mentioned that if this system is being hosted locally, sky_watcher would be best to ensure that the IP address assigned by their ISP is a static ip address, otherwise on the odd occasion when the router/modem connected is rebooted, it is possible that a new IP address obtained may have changed requiring an update on the DNS settings for the corresponding domain.

  • This post is deleted!

  • @mattfox The IP address is static IP address, thanks!

  • @phildunlap It's a good example of IP adress :))

    Whoa, are those nine and ten bit octets I see :P

    I've looked at this link: and at SSL Settings it said something about keystore, but I couldn't find on my MangoES the keystore, any idea why?


  • Partly because the help page said "keystore.exe" when it should have said "keytool.exe" I would bet. The keytool command may already be on the path, so no need to navigate to the file. But, MangoES units do not come with a self-signed certificate in a keystore ready to go, so you need to generate it and then configure the SSL settings to point at that keystore.jks file.

  • @phildunlap So this means that if I login with SSH and run this command: keytool -genkey -keyalg RSA -alias selfsigned -keystore keystore.jks -storepass changei -validity 365 -keysize 1024 than I can give the answer to the question from that help?

  • That command will create the keystore file, yes. Had some weird formatting though, so I edited your post. You may want to use a different storepass than "changei" (or omit that argument to have it ask for that, first)

  • Hi @sky_watcher

    Just for your information, browsers will not recognise a self signed certificate. your browser will give a warning saying the certificate is not trusted. Not the end of the world if the server is just for yourself. If you want the green lock on the URL you'll need to purchase a certificate from a registered CA.

  • The other option is to use let's encrypt's certbot certificate authority. Install that on mango and validate with the dns option. @phildunlap is there not a way to import a signed cert into the Java SSL script that you are talking about?

    Am also happy to show how to reverse proxy with Apache 2 for those who are interested...

  • @phildunlap I executed that command and I made changes to file. But after reboot I couldn't connect to the web, so I restored back the file and now is working.

    Those errors I got when I couldn't connect to the web:


    And this one was in the ma.log file:

  • @mattfox

    is there not a way to import a signed cert into the Java SSL script that you are talking about?

    There is! Here's my little note scratches about how to do that... Step 0 is submit a CSR and get a certificate bundle back.

    1. openssl pkcs12 -export -certfile -inkey server.key -in server.crt -name NAME -out keystore.p12 -passout pass:morethan6c
    1a. cd to your jdk/bin folder
    2. sudo ./keytool -importkeystore -destkeystore /path/to/keystore.jks -srckeystore keystore.p12 -srcstoretype PKCS12 -alias NAME -srcstorepass morethan6c
    3. Enter destination keystore password: morethan6c
    Now you have a keystore.jks file, 
    4. copy this into your Mango/overrides/properties directory.
    5. Edit your Mango/overrides/properties/ file such that...
    5a. Add the APLN script into the ext-enabled folder
    6. Restart Mango
    7. Success!

  • Gent and a scholar, thanks!

  • @sky_watcher

    Can you share your web.port and ssl.port from your Have you tried clearing your browser cache?

    The warning you shared suggests there isn't a jetty-alpn-agent.jar in the Mango/boot directory perhaps. Enabling ALPN takes advantage of HTTP/2 but you may need to move the enable-alph extension script from your Mango/bin/ext-available to Mango/bin/ext-enabled/ to get the benefits. SSL is required to be enabled, as well.

  • @phildunlap web port is 8888 and ssl port is 8443.

    Yes, I've cleared the cash.

  • @phildunlap I moved enable-alph extension script to ext-enable folder, and also I made the SSL settings like before but I get the same errors and I couldn't navigate to the web page.