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63 lines
1.8 KiB
ReStructuredText
63 lines
1.8 KiB
ReStructuredText
Change Zones
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============
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After you create a zone, you can use the :doc:`chzone </guides/admin-guides/references/man1/chzone.1>` command to make changes. Some of the things you can do are the following:
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* Add nodes to the zone
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* Remove nodes from the zone
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* Regenerated the keys
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* Change sshbetweennodes setting
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* Make it the default zone
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The following command will add node1-node10 to zone1 and create a group called zone1 on each of the nodes. ::
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chzone zone1 -a node1-node10 -g
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The following command will remove node20-node30 from zone1 and remove the group zone1 from those nodes. ::
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chzone zone1 -r node2--node30 -g
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The following command will change zone1 such that root cannot ssh between the nodes without entering a password. ::
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#chzone zone1 -s no
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#lsdef -t zone zone1
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Object name: zone1
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defaultzone=no
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sshbetweennodes=no
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sshkeydir=/etc/xcat/sshkeys/zone1/.ssh
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The following command will change zone1 to the default zone.
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**Note**: you must use the ``-f`` flag to force the change. There can only be one default zone in the ``zone`` table. ::
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#chzone zone1 -f --defaultzone
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#lsdef -t zone -l
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Object name: xcatdefault
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defaultzone=no
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sshbetweennodes=yes
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sshkeydir=/root/.ssh
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Object name: zone1
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defaultzone=yes
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sshbetweennodes=no
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sshkeydir=/etc/xcat/sshkeys/zone1/.ssh
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Finally, if your root ssh keys become corrupted or compromised you can regenerate them. ::
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chzone zone1 -K
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or ::
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chzone zone1 -k <path to SSH RSH private key>
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As with the :doc:`mkzone </guides/admin-guides/references/man1/mkzone.1>` commands, these commands have only changed the definitions in the database, you must run the following to distribute the keys. ::
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updatenode mycompute -k
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or ::
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xdsh mycompute -K
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