# Rancer2 add cert

**URL:** <https://forums.suse.com/t/rancer2-add-cert/10501>\
**Category:** General\
**Created:** [May 22, 2018, 7:35am UTC](https://forums.suse.com/t/rancer2-add-cert/10501 "2018-05-22T07:35:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![watchworld](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/watchworld/32/4079_2.png) [@watchworld](https://forums.suse.com/u/watchworld)\
**Post date:** [May 22, 2018, 7:35am UTC](https://forums.suse.com/t/rancer2-add-cert/10501/1 "2018-05-22T07:35:13Z")

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errors:Private Key is invalid. Please make sure it is a RSA key.why?