[TriLUG] How ssh et al resolves domain names...

[Joseph Mack NA3T]

On Tue, 27 Aug 2013, Brian Henning wrote:

> Why does host(1) know who "mirawall" is, but ssh(1) and ping(8) (among
> others) do not?  Shouldn't they all be resolving the hostname the same way?

they should, but they don't. Some of them have their own code for resolving. 
Some of them ignore nsswitch.conf. I don't know what host, ssh and ping in 
particular do, but I remember being caught out on this a long time ago. 
There should only be one mechanism for resolving and it shouldn't be done 
by the apps. These sort of problems should have been sorted out even back then.

Joe

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Joseph Mack NA3T EME(B,D), FM05lw North Carolina
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