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Elektra
0.9.3
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The /etc/hosts file is a simple text file that associates IP addresses with hostnames, one line per IP address. The format is described in hosts(5).
The hosts plugins transforms the information of this file to the following structure. The keys directly below ipv4 or ipv6 are host names of IPv4 or IPv6 addresses, respectively. The keys directly below these keys are aliases. The IP addresses themselves are stored as values.
Canonical hostnames are stored as key base names with their IP addresses as value.
Aliases are stored as keys directly below canonical hostnames with a read-only duplicate of the associated IP address as value.
Comments are stored according to the comment metadata specification (see /doc/METADATA.ini for more information).
The ordering of the hosts is stored in metakeys of type order. The value is an ascending number. Ordering of aliases is not preserved.
Mount the plugin:
Print out all known hosts and their aliases:
Get IP address of ipv4 host "localhost":
Check if a comment is belonging to host "localhost":
Try to change the host "localhost", should fail because it is not an IPv4 address:
```
sudo kdb mount –with-recommends hosts /tests/hosts hosts
echo '127.0.0.1 localhost' > kdb file /tests/hosts echo '::1 localhost' >> kdb file /tests/hosts
cat kdb file /tests/hosts #> 127.0.0.1 localhost #> ::1 localhost
kdb get /tests/hosts/ipv4/localhost #> 127.0.0.1 kdb get /tests/hosts/ipv6/localhost #> ::1
kdb set /tests/hosts/ipv4/localhost ::1
kdb set /tests/hosts/ipv6/localhost 127.0.0.1
kdb rm -r /tests/hosts sudo kdb umount /tests/hosts ```
1.8.13