Q. My mail delivery fails with DNS: Service unavailable error. How do I fix this error under Linux / UNIX operating systems?
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Q. I have Debian Linux server in remote data center. I can ping server by its IP but not by hostname such as server.domain.com. How do I ping server by hostname? A. This is client side DNS problem. All you have to do is setup correct DNS server: => Linux DNS Client Configuration => Solaris [...]
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