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