What is the `/etc/hostname` used/required for?
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static
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Published on 2012-11-22T15:57:24Z
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2012/11/22
17:02 UTC
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Hit count: 156
I found in the /etc/hostname
my IP-address, than I deleted it and each time I use sudo - I get a message and a system email sudo: unable to resolve host (none)
or if in the /etc/hostname
is saved myhostname
than sudo: unable to resolve host (myhostname)
.
I know it is used to set the system's hostname via /etc/init.d/hostname.sh
while booting process, but what is this setting required for (programs, services, daemons ...)?
What if i set to localhost
(so it doesn't happen any sudo: unable to resolve host (none)
anymore, but is it still ok?)?
UPD1:
I found some information here: http://jblevins.org/log/hostname, but it is all about how to use it and not about - why it is required.
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