Tag Archives: DNS

Get Rid of virbr0

In RHEL 7.x and CentOS 7.x you may see an odd extra network interface listed as “virbr0” (virtual bridge zero). This is provided as a default way to share the host physical network with private guest virtual machines. Unfortunately this … Continue reading

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nslookup

Update 1 Nov 2017. Added Non-interactive examples for documenting or scripting test and verification nslookup commands. Non-Interactive nslookup examples (for scripting, documentation, and quality testing). nslookup -type=CNAME sample.fqdn.com some.dns.server type can be any valid DNS record type (AAAA, A, PTR, … Continue reading

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