I am new to Maven and am currently looking at it to help bring order to a handful of related projects that are currently built using Ant.

I have been working my way through "Better Builds with Maven" and trying to digest the information presented there. In section 2.1 (Preparing to Use Maven) you can find the following assertion, "In its optimal mode, Maven requires network access...". I assume that the term "network" in the phrase "network access" refers to the Internet. I can already see that Maven relies pretty heavily on being able to phone home to the central repository in its efforts to resolve project dependencies.

I am faced with an interesting environment where all development is conducted on an internal, "airgapped" network. In short, there is no physical connection between this internal development network and the Internet. Sometimes two networks in this configuration are referred to as "low side" and "high side," indicating which direction data is flowing. In our particular case, the Internet is the "high side" network and the internal development network is the "low side" network. In order to move data from the high side to the low side, it is necessary to write data to a physical medium, and move it to a device on the latter network.

The first thought that comes to mind is to setup an internal mirror of the Maven central repository. That may work (although it is certain to give at least one security-minded network engineer serious heartburn). Are there any guidelines or standards for this type of configuration? Also, it is possible to setup a partial mirror of the central repository (in the event that those aforementioned security- minded folk can't abide the entire repository)?

I would imagine that I am not the first person in the Maven community to face this dilemma. Any information or insight that you may be able to provide in this matter is appreciated.

Thanks in advance.

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