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= Overview =
{| class="wikitable" style="width:100%;"
! style="width:20%;" | Overview
! style="width:20%;" | Retrieve
! style="width:20%;" | Input
! style="width:20%;" | Process
! style="width:20%;" | Output
|-
| style="text-align:center;" | [[MetaData_-_Start_Here|Link]]
| style="text-align:center;" | [[MetaData_-_Retrieve|Link]]
| style="text-align:center;" | [[MetaData_Process_Input|Link]]
| style="text-align:center;" | [[MetaData_Process_Rules|Link]]
| style="text-align:center;" | [[MetaData_Process_Output|Link]]
|-
|}
Retrieving data from various sources is the first step in a MetaData process. There are various options to how data can be brought into bxp. This article discusses the various options and approaches used.
Once the files are within bxp, again decryption of encrypted content can be performed.
= VPN =
A Virtual Private Network, creates a bubble which extends the security of your internal network out and around another machine on another network.
VPNs are a massive security consideration. They also offer allow a number of capabilities not possible with other solutions. Consider two networks.
[[File:metadata_retrieve_001.png|400px]]
The base interactions described above are tried, tested, secured and checked protocols for interaction. So the security tends to interact at the edge points.
[[File:metadata_retrieve_002.png|400px]]
In a VPN scenario, a machine, or even an entire network enters a security bubble
[[File:metadata_retrieve_003.png|400px]]
A VPN is a two way street. If the machine enters a network, machines on that network can chat. For this reason it is not possible to put a production web server of bxp into another clients network for security reasons. Instead a staging / intermediate server is required, controlled and security audited.
[[File:metadata_retrieve_004.png|400px]]
Now the files can be retrieved from the VPN and then presented securely to bxp through one of the secured interfaces.