Hello,
wrote:
Is there some online way to test candidate configs to check for errors before pushing to a real box?
Your options here are:
1/ vSRX on own server, in AWS or Azure cloud - but then interface names & numbers are going to be different, AFAIK
2/ Juniper vLabs https://jlabs.juniper.net/vlabs/
3/ build own JUNOS simulator
HTH
Thx
Alex