[Koha] (no subject)

[Manos PETRIDIS]

This has to do with DNS I believe.

What DNS does is provide a way for host names (as "kohaOPAC.mylibrary.edu"
for example) to be translated to IP addresses (as 123.124.125.126). This
translation may be needed by either the workstation of the user trying to
access the koha system, or the system itself when it tries to access various
components (as the MySQL server for example).

If there is a namespace available (mylibrary.edu in our example), and
provisions have been made for it to accommodate a koha installation
(provision for the Fully Qualified Domain+Host names
"kohaOPAC.mylibrary.edu" and "kohaADMIN.mylibrary.edu" for example), and the
koha server has been configured accordingly, then no DNS host file tweaking
is necessary. 

The "hosts" file was the pre-DNS way of associating host names with IP
addresses, and is still used for compatibility reasons and those of
exception handling. Looking-up the hosts file is faster and usually precedes
making a query to one or more DNS servers. Therefore "tweaking the host
file" means "add the necessary entries if needed, to a certain file named
hosts, so that the host names that the installer person selected/entered
previously during the installation procedures, do indeed point to a valid
host, either as a result of a DNS query or a hosts file look-up".

kind regards,
Manos PETRIDIS

NB: a hosts file may still be used nevertheless, even when DNS works fine,
just to attain some slight performance increase when accessing specific
hosts. It would be a poor practice however, as it could lead to difficult to
trace problems when something needs to be changed in the configuration and
no proper documentation exists/is consulted.


-----Original Message-----
From: koha-bounces at lists.katipo.co.nz
[mailto:koha-bounces at lists.katipo.co.nz] On Behalf Of Richard Maileseni
Sent: Monday, August 26, 2013 10:55 AM
To: koha at lists.katipo.co.nz
Subject: [Koha] (no subject)

hi guys!

Please can anyone explain the "Tweak Host File" step in

http://wiki.koha-community.org/wiki/Koha_on_ubuntu_-_packages

thanks.
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