阿里云服务器使用Fabric Samples运行first-network报错error getting endorser client for channel

报错过程：
进入fabric-samples 目录中的first-networkd子目录后，在使用“./byfn.sh —help”时报错：
error getting endorser client for channel: endorser client failed to connect to peer0.org1.example.com:7051: failed to create new connection: context deadline exceeded

解决方案：
将 /etc/resolv.conf 注释掉 options timeout:2 attempts:3 rotate single-request-reopen，再次运行可成功。