Configure NIS Slave2015/11/01 |
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Configure NIS Slave Server to continue NIS service if NIS master server would be down.
+----------------------+ | +----------------------+ | [ NIS Server ] |10.0.0.30 | 10.0.0.31| [ NIS Client ] | | dlp.srv.world +----------+----------+ www.srv.world | | | | | | +----------------------+ | +----------------------+ +----------------------+ | | [ NIS Slave ] |10.0.0.51 | | node01.srv.world +----------+ | | +----------------------+ |
| [1] | |
| [2] | Configure as a NIS Slave. |
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root@node01:~#
vi /etc/default/nis # line 6: change (NIS slave) NISSERVER= slave
root@node01:~#
vi /etc/ypserv.securenets
# This line gives access to everybody. PLEASE ADJUST!
# comment out # 0.0.0.0 0.0.0.0
# add to the end: IP range you allowto access 255.255.255.0 10.0.0.0
root@node01:~#
vi /var/yp/Makefile # line 52: change MERGE_PASSWD= true
# line 56: change MERGE_GROUP= true
root@node01:~#
vi /etc/hosts 127.0.0.1 localhost # add own IP for NIS 10.0.0.51 node01.srv.world node01
root@node01:~#
initctl start ypserv ypserv start/running, process 1922 # sync with NIS master server root@node01:~# /usr/lib/yp/ypinit -s dlp.srv.world We will need a few minutes to copy the data from dlp.srv.world. Transferring group.bygid... Trying ypxfrd ... success ... ... At this point, make sure that /etc/passwd and /etc/group have been edited so that when the NIS is activated, the data bases you have just created will be used, instead of the /etc ASCII files. |
| [3] | Configure on NIS master server for new NIS Slave. |
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root@dlp:~#
vi /var/yp/Makefile # line 23: change NOPUSH= false
# update NIS database root@dlp:~# /usr/lib/yp/ypinit -m
At this point, we have to construct a list of the hosts which will run NIS
servers. dlp.srv.world is in the list of NIS server hosts. Please continue to add
the names for the other hosts, one per line. When you are done with the
list, type a <control D>.
next host to add: dlp.srv.world
# specify NIS slave next host to add: node01.srv.world next host to add: # Ctrl + D key The current list of NIS servers looks like this: dlp.srv.world node01.srv.worldIs this correct? [y/n: y] y We need a few minutes to build the databases... Building /var/yp/srv.world/ypservers... ... ... Now you can run ypinit -s dlp.srv.world on all slave server. |
| [4] | Configure on NIS Client to bind NIS slave, too. |
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root@www:~#
vi /etc/yp.conf # add slave server's setting to the end domain srv.world server dlp.srv.world
domain srv.world server node01.srv.world
initctl restart ypbind ypbind start/running, process 1763 |
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