== Machine Setup ==

1.  Install Ubuntu or Debian - prefer the server version of your chosen Ubuntu or Debian LTS distro

2.  Change root password
{{{
cslab@machine:~$ sudo su
root@machine:~# passwd
}}}

3.  Update and install necessary packages. If prompted for NIS domain name, enter: sci.nis
{{{
root@machine:~# apt update
root@machine:~# apt upgrade -y && apt install -y vim git htop dstat nfs-common nis tmux
root@machine:~# apt autoremove -y
}}}

4.  Remove swap
{{{
root@machine:~# swapoff -a
root@machine:~# rm -v /swap.img
}}}

5.  Connect the NFS (nemesis is down (3.3), comment it out)
{{{
root@machine:~# vim /etc/fstab: 
		# swap -> comment-out
		147.102.4.1:/home	/home	nfs	defaults	0	0
		147.102.4.1:/various	/various	nfs	defaults,nolock	0	0
		#147.102.3.3:/store/cluster_data	/risky_store	nfs	nfsvers=3,nolock	0	0
}}}

6.  Determine users, passwords, groups
{{{
root@machine:~# vim /etc/nsswitch.conf
		at passwd, group, shadow add: files nis
}}}

7.  Test if the previous step was successful
{{{
root@machine:~# yptest (must read the config)
root@machine:~# id ypap (must return user)
root@machine:~# ps -ef | grep yp (ypbind.service must be running)
}}}
  If not running:
{{{
root@machine:~# systemctl restart ypbind
root@machine:~# systemctl list-unit-files | grep yp
}}}

8.  Root users enter without password
{{{
root@machine:~# vim /etc/ssh/sshd_config
                PasswordAuthentication no
}}}

9.  Connection fix
{{{
root@machine:~# vim /lib/systemd/system/systemd-{logind, udevd}.service # comment-out IPAddressDeny=any
root@machine:~# systemctl daemon-reload
root@machine:~# systemctl restart systemctl-logind
root@machine:~# systemctl restart systemctl-udevd
}}}