แก้ DNS ubuntu 17.10

sudo vim /etc/resolvconf/resolv.conf.d/head
nameserver IP dns internal 1
nameserver IP dns internal 2

set sftp on centos 7

set sftp

https://www.digitalocean.com/community/tutorials/how-to-enable-sftp-without-shell-access-on-centos-7#conclusion

configure samba for centos 7

#yum install samba samba-client samba-common


vim /etc/samb/smb.conf

-------------------------------------------Start-----------------------------------------------------
[global]
        workgroup = ARSSYSTEM
        server string = ARS Data Center System
        security = user
        netbios name = ARSDC08

        browseable = No
;       passdb backend = tdbsam
        passdb backend = smbpasswd

        printing = cups
        printcap name = cups
        load printers = no
        cups options = raw
        disable spoolss = yes
        load printers = no
        printing = bsd
        printcap name = /dev/null
        disable spoolss = yes

        veto files = /*.mp3*/            #Protect file mp3

        log file = /var/log/samba/%m.log
        log level = 3
        debug timestamp = yes
        host msdfs = no
        ntlm auth = yes                   # For user windows xp access

-------------------------------------------//End//---------------------------------------------------

การปรับสิทธิ์ให้ผู้ใช้งาน 2 กลุ่ม เช่น user01 อยู่ในกลุ่ม user, tech สามารถสร้างและให้คนที่อยู่ในกลุ่มอื่นแก้ไขไฟล์ได้พร้อมกัน โดยการบังคับให้เวลาสร้าง Folder, File, อยู่ในกลุ่ม tech แทนกลุ่ม user

[tech]
        comment = Tech department only
        inherit acls = Yes
        path = /mnt/tech
        guest ok = no
        browseable = yes
        write list = @techAdmin   #only the group that has write privileges
        valid users = @tech
        force group = tech            #this is so that all files written to the share will be set to "chgrp tech" if you dont do this only the user that created the file will have access to it.
        create mask = 0775            #this forces all created documents to have 775 perms (WR-WR-WR)
        directory mask = 0775       #same for directories