Eureka Installation: NIS Server - calab-ntu/gpu-cluster GitHub Wiki

Installation: Master

Reference
1. https://blog.xuite.net/tolarku/blog/205091715-Unix+%E7%9A%84+NIS%2F+YP+Client+%E8%A8%AD%E5%AE%9A
2. https://yungyuc.github.io/oldtech/debian/NISConf.html#id5
3. https://docs.oracle.com/cd/E19683-01/816-7511/6mdgu0h22/index.html (recommended! If you encountered any troubles)

Network setting

check and record the name of network interface (eg. enp6s0)
```
ip link
```

modify configure file for network

vi /etc/netplan/50-cloud-init.yaml

Enter the following information

  network:
     ethernets:
        enp6s0: # <-- this is the name of network interface you just found
                addresses: [192.168.0.149/24]
                gateway4: 192.168.0.1
                nameservers:
                   addresses: [140.112.254.4]
                dhcp4: no

apply the previous modification
```
netplan apply
```
check network and DNS
```
ping www.google.com
```

NIS master
1. apt-get update
2. apt-get install nis
3. optional apt-get install yp-tools
4. optional apt-get install nfs-kernel-server
5. vi /etc/default/nis
```
"NISSERVER=master"
"SSERVER=master"
"NISCLIENT=false"
```
6. vi /etc/ypserv.securenets
  1. comment out this line at end:
```
"0.0.0.0                0.0.0.0"
```
  2. append this line to the end.
    
    For security reason, this step is very important!
```
"255.255.255.0   192.168.0.0"
```
7. vi /var/yp/Makefile
```
"MERGE_PASSWD=true"
"MERGE_GROUP=true"
```
8. modify the host file
```
vi /etc/hosts 
```
9. add users in sudo file
```
vi /etc/sudoers
```
10. give a new group name to NIS (eg. calab)
```
vi /etc/group
```
  replace tumaz with new group name (eg. calab) "tumaz:x:1000: " --> "calab:x:1000: "
11. service portmap restart
12. service nis restart
13. ypserv status

trouble shooting

check NIS domain name
```
$ nisdomainname
```
modify the NIS domain name
```
vi /etc/defaultdomain
```

apply the modifeid NIS domain name

/usr/lib/yp/ypinit -m

ps -e | grep rpcbind

rpcinfo -p ypserver

ps -e | grep yp

rpcinfo gamer04

RAID1

Reference
OS ubuntu-18.04.3-live-server-amd64
UEFI (important!!!!)
enter the BIOS frequently hit Del during the boot process
force BIOS to boot by UEFI instead of Legacy(default) Advanced-> CSM Configuration -> Boot option filter -> choose UEFI only
make FAT32 filesystem for bootalbe USB (important!!!!)
1. check the file system and the name of disk
```
lsblk -f
```
2. umount "ALL" partitions in USB
```
umout /dev/sdb?
```
3. make FAT32 filesystem for USB
```
fdisk /dev/sdb
```
  choose n choose p hit Enter hit Enter hit Enter
clone OS into bootable USB (only work with FAT32)
```
dd if=ubuntu-18.04.3-live-server-amd64.iso of=/dev/sdb status=progress
```
Assuming /dev/sdb is your USB device
Install Ubuntu
1. Choose manual partitioning select Manual
2. Select available disks to format and mount 1.
  1. choose any one of SSDs, say disk1
  2. hit Add Partition
  3. Size: 20G
  4. Format: Leave unformatted
  5. hit create
  6. 1. choose disk1
    2. hit Add Partition
    3. Size: leave blank
    4. Format: Leave unformatted
    5. hit create
  7. make and reserve a partition for mirrored EFI 1.
    1. choose another SSD, say disk2
    2. hit Add Partition
    3. Size: 512MB
    4. Format: Leave unformatted
    5. hit create
    6. 1. choose disk2
      2. hit Add Partition
      3. Size: 20G
      4. Format: Leave unformatted
      5. hit create
    7. 1. choose disk2
      2. hit Add Partition
      3. Size: leave blank
      4. Format: Leave unformatted
      5. hit create
3. hit create software RAID (md)
4. select a pair partitions as RAID 1
5. repeat Step3-4
6. hit md1 (new) (20G)
7. select Format
8. Format SWAP
9. hit md1 (new) (211G)
10. select Format
11. Format ext4
12. mount /
13. hit Done
checks
1. Check which EFI partition has been mounted. Most likely /dev/sda1.
```
mount | grep boot
```
2. watch RAID status. Most likely it is synchronizing. please wait patiently for synchronizition.
```
watch -n 0.5 cat /proc/mdstat
```
Clone the existing EFI partition to the partition you just reserved for mirrored EFI
```
dd if=/dev/sda1 of=/dev/sdb1 status=progress
```
/dev/sda1: the existing EFI partition /dev/sdb1: mirrored EFI
Insert the second boot partition into boot chain
1. check the file name for the ubuntu boot entry. eg. \EFI\UBUNTU\SHIMX64.EFI
```
efibootmgr -v
```
2. insert the second boot pration(sdb) into boot chain
```
efibootmgr -c -d /dev/sdb -p 1 -L "tumaz2" -l \EFI\UBUNTU\SHIMX64.EFI
```
  Assuming /dev/sdb is the partition to be mirrored EFI
DONE!

Now the system should boot even if either of the drives fail!

QUOTA

installation
```
sudo apt update
sudo apt install quota
```
report all user
```
repquota -s /
```
report specific user
```
quota -vs [user name]
```

set quota (unit: G, M, K)

setquota -u [user name] 200M 220M 0 0 /

set grace (unit: second)
```
setquota -t 864000 864000 /
```
Ref:

Eureka Installation: NIS Server - calab-ntu/gpu-cluster GitHub Wiki

Installation: Master

RAID1

QUOTA

Links