và /home/user2 nhưng
Bh sftp://user2@192.168,2.253 - FileZille File Edit View Transfer Server Bookmarks Help
= _— = SSORORVIFATH == G
Host: | ftp:/ Username: | user2 Password: seececece Port: Quickconnect +
srs ——
Status: Retrieving directory listing.
Statu: Listing directory /home/user2 Status: Directory listing of "/home/user2" successful Status: Retrieving directory listing of “/home’...
Status: Listing directory /home Status: Directory listing of "/home” successful
Status: Retrieving directory listing of "/home/user3 Command: cd "/home/user3”
mor: Directory /home/user3: permission denied mo. Failed to retrieve directory listing Status: Retrieving directory listing of ”/horme/user12”...
Statu: Listing directory /home/usert2 Status: Directory listing of “/home/user!2" successful Stat Retrieving directory listing of "/home/user!
Command: cd"/home/user1"
Error. Directory /home/user!: permission denied
Error: Failed to retrieve directory listing
sftp://useri@192.166.2.253 x sftp://user2@ 192.168.2253 x
Local site: | C:\Users\Administrator\Documents’ Remote site: | /home/user2
có thể truy cập
Hình 65: user2 không thể truy cập thư mục /home/user] và /home/user3 nhưng có thể truy cập /home/user2 va /home/user12
a sftp://user1@ 192.168.2253 - FileZilla Edit View Transfer Server Bookmarks Help
|RSS Chon vizaoe
Host: | ftp://192.1622.253 | Usemame: | user! | Password: | eeeeeeeee | Pot:{ | Status: Connecting to 192.168.2.253...
Status: Using username “user”.
Ktatux, Connected to 192.168.2253 Status; Retrieving directory listing...
Status: Listing directory /home/user!
Status: Directory listing of "/home/userl" successful Status: Connecting to 192.168.2253.
ng user! er1”, Status: Contested te 192.168.2253
‘Status: Starting download of An NT G HH ctxt
‘Status: File transfer successful, transferred 0 bytes in 1 secon
Status: Starting upload of C:\Users\Administrator đc ecd.NETeifsdigieitoili
‘Status: File transfer successful, transferred 23 nies in 1 second Status: Retrieving directory listing of "/home’
Status: Listing directory /home Status: Directory listing of "/home” successful Status: Retrieving directory listing of "/home/usert2”...
Status: Listing directory /home/user12
‘Status: Directory listing of "/home/userl2" successful
‘Status: Starting upload of C:\Users\Administrator\Documents\FileTextForUploadTest.ot
‘Status: File transfer successful, transferred 23 bytes in 1 secon Status: Retrieving directory listing of */home/user!2"...
Status: Listing directory /home/useri2
Status: Directory listing of "/home/userl2" successful
Local site: | C:\Users\Administrator\Documents\ ~ | Remote site: | /home/userl2
TT Documents “.- S ftpuser aaa
Hình 66: user1 có thể Upload và Download, chỉnh sửa ở thư mục /home/user] và /home/user12.
Tương tự với user2 b) Với user3
sftp://user3@192.168.2.253 - FileZilla File Edit View Transfer Server Bookmarks Help
ChoxvTliFace
Host: Soy Username: | user3 | Password: |eeeeeeeee Pert | Quickconnect | ~|
‘Status: Using username "user3".
‘Status: Connected to 192.168.2.253 Status: Retrieving directory listing...
Status: Listing directory /home/user3
‘Status: Directory listing of "/home/user3" successful Status: Retrieving directory listing cf "/home"...
Listing directory /home Directory listing of "/home" successful Retrieving directory listing of "/home/user1",..
Status: Listing eee /home/user1
‘Status: Directory listing of "/home/user!" successful
‘Status: Retrieving di listing of "/home/user12"...
‘Status: Listing directory /nome/userl2 Directory listing of "/home/user12" successful
Retrieving directory listing of "/home/user2"...
‘Status: Listing directory /home/user2
Status: Directory listing of "/home/user2" successful
Hình 67: user3 có thể truy cập tất cả các thư mục vừa tạo để có thể đọc
[74 sftp://user3@ 192.168.2.253 - FileZilla File Edit View Transfer Server Bookmarks Help
CRO VT=FASh
Host: | sftp://192.168.2.253] Username: | user3 | Password: | eeee
4
| Por:[ | | Quickeonnect | +
Status: Listing directory /home
Stetus: Directory listing of "/home" successful Status: Retrieving directory listing of "/home/user1”...
Status: Listing directory /home/user!
Status: Directory listing of "/home/userl" successful
‘Status: Connecting to 192.168.2.253...
Status: Using username “user3".
Status: Connected to 192.168.2.253 Status:
Hình 68: user3 có thể Download file te Ubuntu v €Windows Server
Bi s#p://user3@192.168.2.253 - FileZilla File Edit View Transfer Server Bookmarks Help
4 : “Em “m = = 5
se 7 || SIOROXVIFASTA
Host: | sftp://192.168.2.253| Username: | user3 Password: | se®®sess* Port: | | Quickconnect |
Command: cd "/home/userl2"
Response: New directory is: “/home/userl2
Commend: put "C:\Users\Administrator\Documents\FileForDownloadT est.txt” "FileForDownloadTest.tt"
Error: home/user12/FileFcrDownloadTest.txt: open for write: permission denied Error: File transfer failed
‘Status: Starting upload of C:\Users\Administrator\Documents\FileForDownloadTest.tt
Status: Retrieving directory listing of "/home/user12"...
Status: Listing directory /home/user12
Command: put "C:\Users\Administrator\Documents\FileForDownloadTest.txt” "FileForDownloadTest.tt”
Error home/user12/FileForDownloadTest.tt: open for write: permission denied Error: File transfer failed
Status: Starting upload of C:\Users\Administrator\Documents\FileForDownloadTest.bt
‘Status: Retrieving directory listing of "/home/user12"..
Status: Listing directory /home/userl2
Command: put "C:\Users\Administrator\Documents\FileForDownloadTest txt” "FileForDownloadTest.txt”
Error: home/user12/FileF orDownloadTest.tst: open for vrite: permission denied.
Error: File transfer failed
Status: Retrieving directory listing of "/home/user12"...
Status: Listing directory /home/userl2 Status: Directory listing of "/home/user!2" successful Status: Deleting "/home/user12/FileTextForUploadT est.ttt
Command: 1m “/home/user12/FileTextForUploadTest.tt"
rm /home/user|2/FileTextForUploadTest.bt: permission denied
‘Status: Disconnected from server
Local site: | C:\Users\Administrator\Documents\ v | Remote site: |
Hình 69: user3 không thể Upload file ta Windows Server lên Ubuntu và không thể xóa file “home/user]2
V) Dich vu quan tri tv xa UltraVNC Viewer hoặc TightVNC 1) Cai dat VNC Server trén Ubuntu
n19dcat033@n19dcat033-virtual-machine: ~
$ sudo apt install xfce4 xfce4-goodies [sudo] password for n19dcat933:
Reading package lists... Done Building dependency tree Reading state information... Done
The following additional packages will be installed:
accountsservice-ubuntu-schemas desktop-base elementary-xfce-icon-theme exo-utils fonts-quicksand gnome-screensaver greybird-gtk-theme hddtemp indicator-applet indicator-application indicator-appmenu indicator -bluetooth indicator-common indicator-datetime indicator-keyboard indicator-messages indicator-power indicator-printers indicator-session indicator -sound jayatana Libaccounts-glibO Libbamf3-2 Libburn4 Libexo-1-0 lLibexo-2-0 libexo-common libexo-helpers lLibfcitx-config4 Libfcitx-gclient1
b = P ee oD ŒIDSD ha oe! r
Hình 70: Cài package c Ân thiết
Configuring lightdm
A display manager is a program that provides graphical login capabilities for the X Window System.
Only one display manager can manage a given X server, but multiple display manager packages are installed. Please select which display manager should run by default.
Multiple display managers can run simultaneously if they are configured to manage different servers; to achieve this, configure the display managers accordingly, edit each of their init scripts in /etc/init.d, and disable the check for a default display manager.