Peer cert cannot be verified or peer cert invalid

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Peer cert cannot be verified or peer cert invalid while using yum

If you are getting above error then perform the following to resolve the yum error.

1- check and correct the date and time of the server.

2- Check /etc/hosts file for any false DNS resolutions of servers.

3-Disable SSL verification by adding    sslverify=false in /etc/yum.conf

4- Check repo file is using http or https and verify url.

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