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10.5. Setting Ethers Information for a Host
NIS can host an ethers table which can be used manage DHCP configuration files for systems based on their platform, operating system, DNS domain, and MAC address — all information stored in host entries in IdM.
In Identity Management, each system is created with a corresponding ethers entry in the directory, in the
ou=ethers subtree.
cn=server,ou=ethers,dc=example,dc=com
This entry is used to create a NIS map for the ethers service which can be managed by the NIS compatibility plug-in in IdM.
To configure NIS maps for ethers entries:
- Add the MAC address attribute to a host entry. For example:
[jsmith@server ~]$ kinit admin [jsmith@server ~]$ ipa host-mod --macaddress=12:34:56:78:9A:BC server.example.com
- Open the
nsswitch.conffile. - Add a line for the ethers service, and set it to use LDAP for its lookup.
ethers: ldap
- Check that the ethers information is available for the client.
[root@server ~]# getnt ethers server.example.com
