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

Some notes for using nslookup interactively to verify and debug DNS records. server 8.8.8.8 # point to different DNS server with “server x.x.x.x” command # popular public servers include 8.8.8.8, 8.8.4.4, 208.67.222.222, 208.67.220.220 (google & opendns) # change lookup record … Continue reading

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