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159 views89 days ago
What for Monitoring and Logging
This is for monitoring tools such as Gangline and Nagios... more detail

194 views90 days ago
DNS profiling
If we are not sure that the configured DNS server is well updated to handle all our queries, we can edit the file and add some DNS servers that we are sure are qualified (Google DNS: , ). We can test our DNS server using the nslookup command:... more detail

126 views90 days ago
sudo hostnamectl set-hostname
We should ensure we write a well-written domain address. Then we save the files. And, finally, we need to check our DNS resolution. Our server should be using a fully- qualified DNS, which means that it can resolve addresses from all around the Web. We need to check the ... more detail