Jump box vs. opening a firewall port for developers access to PostgreSQL database

I'm using a jump box for my developers to access PostgreSQL database.  The leadership has limited access of 2 users to each Jump box.  It is very difficult to scale that model when all the developers need is secure access (this is on the Azure cloud by the way).  I was thinking about opening up port 5433 as recommended by this article to install pgAdmin.  Does anyone have any pros or cons to this course of action?
George StephensonIoT Information Security ArchitectAsked:
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A jump box is more secure. Opening up the 5433 port can bring you some attacks. If you realy need to open this port, I would recomand that scheme, if it's possible:

- Allow access only from the developers IP to the POstgreSQL admin IP/port
- If it's possbile, publish another port (35433, for example) and make port forwarding to 5433 port

Best regards
btanExec ConsultantCommented:
In any case, it should not have access to database from the Internet and if need to use a VPN instead and access through it. Administration machine should be whitelisted such that firewall inly allow limited authorised ones to come in. Firewall itself is a proxy in a way but rather than exposing a high port which a hacker can probably fingerprint system from the port no, it is better to have some known port for external access. Consider also enforcement of 2 FA  for such remote access.

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George StephensonIoT Information Security ArchitectAuthor Commented:
Thank you folks.  I appreciate the input.  Both these answers help me determine how to address this issue.
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