Difference between revisions of "Cluster der kan alt/LDAP eller NIS"

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</source>
 
</source>
 
*Ret '''/etc/ypserv.securenets''' fjern '''0.0.0.0''' linjen - insecure - og at dit eget net.
 
*Ret '''/etc/ypserv.securenets''' fjern '''0.0.0.0''' linjen - insecure - og at dit eget net.
 +
 +
==Adding a user==
 +
Efter du har oprettet en ny bruger, '''adduser''' er det nødvendigt at genopbygge nis maps!
 +
<source lang=cli>
 +
root@head:~# <input>make -C /var/yp</input>
 +
make: Går til katalog '/var/yp'
 +
make[1]: Går til katalog '/var/yp/c1.local'
 +
Updating passwd.byname...
 +
Updating passwd.byuid...
 +
Updating netid.byname...
 +
Updating shadow.byname...
 +
make[1]: Forlader katalog '/var/yp/c1.local'
 +
make: Forlader katalog '/var/yp'
 +
</source>
 +
===Script adding user in a Cluster===
 +
The following simple script:
 +
*Add a user on the NIS server.
 +
*Add a ssh key to the users '''/home''' library.
 +
**In this cluster '''/home''' is distributed with [[NFS]] to all nodes. Logon to nodes without entering password
 +
*Rebuilding the NIS database with the new user
 +
<source lang=cli>
 +
#!/bin/bash
 +
echo -e "Adding user to cluster"
 +
echo -e "======================\n"
 +
echo -en "User login name: "
 +
read NAME
 +
adduser $NAME
 +
 +
echo -e "Creating keys"
 +
su $NAME -c "ssh-keygen -t dsa"
 +
echo -e "Distributing keys"
 +
su $NAME -c "cat /home/$NAME/.ssh/id_dsa.pub >> /home/$NAME/.ssh/authorized_keys"
 +
echo -e "Rebuild NIS database"
 +
make -C /var/yp
 +
</source>
 +
 +
=Installation på klienten=
 +
Installer software
 +
<source lang=cli>
 +
sudo apt-get install portmap nis
 +
</source>
 +
Kør disse kommandoer, hvor NIS_SERVER_IP = din nis server ip
 +
<source lang=cli>
 +
echo "portmap : <notice>NIS_SERVER_IP</notice> >> /etc/hosts.allow
 +
echo "+::::::" >> /etc/passwd
 +
echo "+:::" >> /etc/group
 +
echo "+::::::::" >> /etc/shadow
 +
echo "ypserver <notice>NIS_SERVER_IP</notice> >> /etc/yp.conf
 +
/etc/init.d/nis restart
 +
</source>
 +
Test med
 +
<source lang=cli>
 +
yptest
 +
</source>
 +
{{source cli}}

Revision as of 08:40, 24 April 2012

Installation af master server

Tilføj følgende linje til /etc/hosts.allow. 

portmap ypserv ypbind: 10.0.0.0/255.255.255.0

Installer NIS. Du vil blive bedt om at indtaste domænenavnet. Domænenavnet er ikke DNS-domænenavn - men et unikt navn for klyngen af maskiner deler de samme oplysninger. 

apt-get install portmap nis
  • Ret /etc/default/nis og set NISSERVER linjen to NISSERVER = master
  • Ret /etc/yp.conf og tilføj en linje med:
domain dka.local server 127.0.0.1
  • Ret /etc/ypserv.securenets fjern 0.0.0.0 linjen - insecure - og at dit eget net.

Adding a user

Efter du har oprettet en ny bruger, adduser er det nødvendigt at genopbygge nis maps! 

root@head:~# <input>make -C /var/yp</input>
make: Går til katalog '/var/yp'
make[1]: Går til katalog '/var/yp/c1.local'
Updating passwd.byname...
Updating passwd.byuid...
Updating netid.byname...
Updating shadow.byname...
make[1]: Forlader katalog '/var/yp/c1.local'
make: Forlader katalog '/var/yp'

Script adding user in a Cluster

The following simple script:

  • Add a user on the NIS server.
  • Add a ssh key to the users /home library.
    • In this cluster /home is distributed with NFS to all nodes. Logon to nodes without entering password
  • Rebuilding the NIS database with the new user
#!/bin/bash
echo -e "Adding user to cluster"
echo -e "======================\n"
echo -en "User login name: "
read NAME
adduser $NAME

echo -e "Creating keys"
su $NAME -c "ssh-keygen -t dsa"
echo -e "Distributing keys"
su $NAME -c "cat /home/$NAME/.ssh/id_dsa.pub >> /home/$NAME/.ssh/authorized_keys"
echo -e "Rebuild NIS database"
make -C /var/yp

Installation på klienten

Installer software 

sudo apt-get install portmap nis

Kør disse kommandoer, hvor NIS_SERVER_IP = din nis server ip 

echo "portmap : <notice>NIS_SERVER_IP</notice> >> /etc/hosts.allow
echo "+::::::" >> /etc/passwd
echo "+:::" >> /etc/group
echo "+::::::::" >> /etc/shadow
echo "ypserver <notice>NIS_SERVER_IP</notice> >> /etc/yp.conf
/etc/init.d/nis restart

Test med 

yptest
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