# \#shard

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## [MongoDB - Resolving \[500\] System error: No such host is known](https://community.cdata.com/t/mongodb-resolving-500-system-error-no-such-host-is-known/895)

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**Author:** [@Ockert](https://community.cdata.com/u/Ockert)\
**Replies:** 0\
**Last updated:** [September 3, 2024, 7:06pm UTC](https://community.cdata.com/t/mongodb-resolving-500-system-error-no-such-host-is-known/895 "2024-09-03T19:06:48Z")

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The “No such host is known” error appears when an invalid value is used for the Server connection property. The first step is ensuring the host name or IP address is valid. MongoDB Compass is a great tool for running co…