Difference between revisions of "NIS Ubuntu"
From Teknologisk videncenter
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apt-get install portmap nis | apt-get install portmap nis | ||
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*Edit '''/etc/default/nis''' and set the NISSERVER line to NISSERVER = master | *Edit '''/etc/default/nis''' and set the NISSERVER line to NISSERVER = master | ||
*Edit '''/etc/yp.conf''' and add a server line of the form: (Note my domain-name is '''c1.local''') | *Edit '''/etc/yp.conf''' and add a server line of the form: (Note my domain-name is '''c1.local''') | ||
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</source> | </source> | ||
*Edit '''/etc/ypserv.securenets''' remove the '''0.0.0.0''' line - insecure - and add your net/nets | *Edit '''/etc/ypserv.securenets''' remove the '''0.0.0.0''' line - insecure - and add your net/nets | ||
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=Installation on the clients= | =Installation on the clients= | ||
Install the software | Install the software | ||
Revision as of 17:12, 14 April 2012
NIS or Network Information Services is a simple - and insecure - way of making Single Sign On in a cluster of UNIX/Linux machines. Very useful in a closed network.
Originally NIS was called YP - Yellow Pages - and the acronyms YP and NIS are used.
There are up to three roles in a NIS installation
- Master server
- The master server - shares files to slaves and clients. For example the passwd and group file
- Slave server(s)
- Maintain copies of the Master Server shared files. Provides redundancy and load balancing
- Clients
- Use the shared files - for example for single sign on. Users added on the master server
Installation of the master server
Add the following line to /etc/hosts.allow. (In this case master,slaves and clients lives in the 10.222.0.0/24 network)
portmap ypserv ypbind: 10.222.0.0/255.255.255.0Install NIS. You will be asked to enter the domain name. The domain name is not the DNS domain name - but a unique name for the the cluster of machines sharing the same information. (I use the DNS domain name - one less thing to remember)
apt-get install portmap nis- Edit /etc/default/nis and set the NISSERVER line to NISSERVER = master
- Edit /etc/yp.conf and add a server line of the form: (Note my domain-name is c1.local)
domain c1.local server 127.0.0.1- Edit /etc/ypserv.securenets remove the 0.0.0.0 line - insecure - and add your net/nets
Installation on the clients
Install the software
sudo apt-get install portmap nis