# Configuration issue in Cert-issuer (github) **URL:** \ **Category:** Technical\ **Created:** [January 24, 2019, 8:47am UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641 "2019-01-24T08:47:27Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![balamurugan05](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@balamurugan05](https://community.blockcerts.org/u/balamurugan05)\ **Post date:** [January 24, 2019, 8:47am UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641/1 "2019-01-24T08:47:27Z")
Hi Team, I’m using windows platform. ‘ **bitcoin-cli getnewaddress** ’ how address are getting generated…? How to get pk\_issuer.txt…? I created an account in [blockhain.com](http://blockhain.com), I got bitcoin address , when I try to dump the pk\_issuer with my bitcoin address it showing **address does not refer to key**. I installed bitcoin-cli using npm, when I tried to execute **" bitcoin-cli dumbkey $issuer ‘pk\_issuer.txt’ "** , I’m getting this error **"Error: Bitcoin Core JSON-RPC: host=127.0.0.1 port=8332: Request Error: connect ECONNREFUSED 127.0.0.1:8332** **"** I need this cert-issuer as a web API, I tried my best but I’m not able to configure. Please help me in this, Thanks in advance. ---
**Author:** ![aronning](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aronning](https://community.blockcerts.org/u/aronning)\ **Post date:** [January 25, 2019, 3:31pm UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641/2 "2019-01-25T15:31:29Z")
This should be all you need to do to generate a new public / private keypair: ```auto issuer=`bitcoin-cli getnewaddress` sed -i.bak "s//$issuer/g" /etc/cert-issuer/conf.ini bitcoin-cli dumpprivkey $issuer > /etc/cert-issuer/pk_issuer.txt ``` If you’re bringing in your own keys, then you need to set the public key in place of `` in `/etc/cert-issuer/conf.ini` and you need to create the `/etc/cert-issuer/pk_issuer.txt` file with your private key as the contents. ---
**Author:** ![balamurugan05](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@balamurugan05](https://community.blockcerts.org/u/balamurugan05)\ **Post date:** [January 28, 2019, 6:21am UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641/5 "2019-01-28T06:21:01Z")
Thanks for your valuable reply. Can you tell me how to create pk\_issuer. I tried by giving my own address, but not working.😣 Error message : **"Address does not refer to key"** Even I got a reference from this [https://bitcoincore.org/en/doc/0.17.0/rpc/wallet/dumpprivkey/](https://bitcoincore.org/en/doc/0.17.0/rpc/wallet/dumpprivkey/) ![Screenshot%20(20)](https://us1.discourse-cdn.com/flex016/uploads/blockcerts/original/1X/ac08ee236bdeb49adc294ca3ec8f32ca0ead8b80.png) ---
**Author:** ![aronning](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aronning](https://community.blockcerts.org/u/aronning)\ **Post date:** [January 28, 2019, 3:19pm UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641/6 "2019-01-28T15:19:02Z")
`dumpprivkey` only works if you’ve created the key via `bitcoin-cli getnewaddress`. You can’t create a private key from any public key, it has to do a lookup to find the private key for the keypair it generated. Either use the commands I posted exactly as I posted them, or figure out how to get the private key through whatever method you’re generating your own keys. Once you have the private key, stick it into the pk\_issuer.txt file. ---
**Author:** ![balamurugan05](https://avatars.discourse-cdn.com/v4/letter/b/958977/32.png) [@balamurugan05](https://community.blockcerts.org/u/balamurugan05)\ **Post date:** [January 29, 2019, 7:08am UTC](https://community.blockcerts.org/t/configuration-issue-in-cert-issuer-github/1641/7 "2019-01-29T07:08:25Z")
Okay,now I got it. I have few questions to ask! 1. If I generate the address using the commands which you posted before, when I issue the certificates it is asking some **133300 satoshi**. If I want to add bitcoins for that address then how to add that… ? 2. In bitcoin.conf, I have configuration like this **‘–rpcuser=foo --rpcpassword=Bala@0514 --rpcport=8332regtest=1 --relaypriority=0 --rpcallowip=127.0.0.1 --rpcconnect=127.0.0.1’** , how to connect with bitcoin mainnet, where can I get my rpc username and password…? 3. What does rpc username and password exactly means…? 4. If rpc is blockchain wallet credentials, when I use that credentials, will address generated by **‘bitcoin-cli getnewaddress’** map with my blockchain wallet…? 5. More simple, certificates generated,issued, signed everything should store in my blockchain wallet, is this possible…?