Gitlab:Peer's Certificate issuer is not recognized

I get this error on a fresh install of gitlab. The message looks like:

fatal: unable to access 'https://gitlab-ci-
token:xxxxxxxxxxxxxxxxxxxx@gitlab.example.com/something.git/': Peer's 
Certificate issuer is not recognized.ERROR: Job 
failed: exit status 1

Any suggestions on how to fix it?

Had faced the same problem after enabling verbose mode by following command export GIT_CURL_VERBOSE=1 and found the following issue:

NSS error -8179 (SEC_ERROR_UNKNOWN_ISSUER)

Found this following site helpful,But its good when you have entire control for the proxy server as well to enter the certificates.

http://dropbit.com/?p=168

I instead ran following command to bypass ssl verification by porxy server and it worked

git config --global http.sslVerify "false"