# Protect master file?

**URL:** <https://discourse.devontechnologies.com/t/protect-master-file/21785>\
**Category:** Tips\
**Created:** [February 19, 2017, 11:16pm UTC](https://discourse.devontechnologies.com/t/protect-master-file/21785 "2017-02-19T23:16:36Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![R\_Barre](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/r_barre/32/14301_2.png) [@R\_Barre](https://discourse.devontechnologies.com/u/R_Barre)\
**Post date:** [February 19, 2017, 11:16pm UTC](https://discourse.devontechnologies.com/t/protect-master-file/21785/1 "2017-02-19T23:16:36Z")

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I’m using DTPO 2.9.10 on my Mac and DTTG 2.1.1 on my iPad and iPhone, and I sync thru Dropbox.

My particular needs do not require changing the database from my iOS devices - only from my Mac. Is there some way I can make DTTG on the iOS devices read-only, so that an accidental change or deletion does not get accidentally synced back to my Mac?

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**Author:** ![BLUEFROG](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/bluefrog/32/135_2.png) [@BLUEFROG](https://discourse.devontechnologies.com/u/BLUEFROG)\
**Post date:** [February 20, 2017, 5:38am UTC](https://discourse.devontechnologies.com/t/protect-master-file/21785/2 "2017-02-20T05:38:09Z")

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No. Sync is a mirroring process, keeping the devices in the same state.

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**Author:** ![cgrunenberg](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/cgrunenberg/32/7172_2.png) [@cgrunenberg](https://discourse.devontechnologies.com/u/cgrunenberg)\
**Post date:** [February 20, 2017, 2:10pm UTC](https://discourse.devontechnologies.com/t/protect-master-file/21785/3 "2017-02-20T14:10:59Z")

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We’ll consider this for future releases, the synchronization is definitely prepared for such scenarios.

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**Author:** ![pryley](https://discourse.devontechnologies.com/user_avatar/discourse.devontechnologies.com/pryley/32/18419_2.png) [@pryley](https://discourse.devontechnologies.com/u/pryley)\
**Post date:** [June 27, 2021, 5:18pm UTC](https://discourse.devontechnologies.com/t/protect-master-file/21785/4 "2021-06-27T17:18:28Z")

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Yes please!!