Configure systems to mount : ext4, LUKS-encrypted and network file systems automatically

Mount ext4 automatically
Open /etc/fstab and enter
/dev/sdb1 /mountpoint ext4 defaults 0 0
Mount LUKS-encrypted automatically
Discussed in Luks
Mount nfs automatically
Open /etc/fstab and enter
nfsserver:/mount_dir /mountpoint nfs defaults 0 0