Linux Smb/Cifs Autofs, Pam, Systemd

Mount Windows shares using smb protocol, 2020 linux now has cifs(smb) drive in the kernel don't need the fullh samba software suite to mount fs.

Goals

1. Goal: mount user directories from windows(cifs) on login

Use pam (pluggable authentication manager) to mount the windows share on mount

2. Goal: mount server share in fixed path

2a. Option: systemd.automount

Setup in /etc/fstab

//192.168.20.22/c /home/{user}/cifs cifs rw,uid={user},gid={user},username={win_user},password={win_pass},x-systemd.automount,x-systemd.device-timeout=10 0 0

specific settings

x-systemd.automount,x-systemd.device-timeout=10

after editing fstab, update systemd

systemctl daemon-reload 
systemctl restart remote-fs.target

2b. Option: autofs (older)

specify root dir in /etc/auto.master
```
/cifs  /etc/auto.cifs --timeout=5
```

create map file /etc/auto.cifs (/!\ not executable)

datadir -fstype="cifs,rw,uid={user},gid={group},username={user_win},password={pass_win)" ://192.168.20.22/c

debug autofs by stopping and running in terminal
```
sudo service autofs stop
sudo automount -f -v
```

Samba / smb - share/serve linux files

add to /etc/samba/smb.conf

[Videos]
    comments = Home-Laptop-Videos
    path = /home/pes/Videos
    guest ok = no
    browseable = yes
    read only = yes
    create mask = 0600
    directory mask = 0700

restart smbd service
```
$ sudo systemctl restart smbd.service
```

add smb password for user, seperate from normal linux password

$ sudo smbpasswd -a <user>

== CIFS linux debug ==
 * sudo less /proc/fs/cifs/DebugData