Ubuntu12.04LTSP.pdf

: Thu, 09 Jan 2014 13:57:11 EET

/

: & Ubuntu 12.04,

LTSP, sch-scripts, epoptes

- ,

Linux/LTSP/ pdf 1Linux/LTSP 2Linux/LTSP/ 4Linux/LTSP/ 7Linux/LTSP/ 9Linux/LTSP/ 10Linux/LTSP/ Ubuntu 11Linux/LTSP/ 12Linux/LiveCD 14Linux/LTSP/ Ubuntu 15Linux/sch-scripts/ 20Linux/Gparted 21Linux/LTSP/ Ubuntu/ 27Linux/LTSP/ Ubuntu/ Ms-Windows 28Linux/LTSP/ Ubuntu/ Linux 30Linux/sch-scripts/ 33Linux/ 36Linux/sch-scripts/ 37Linux/sch-scripts/ 38Linux/LTSP/ 45Linux/Ubuntu 47Linux/epoptes 48Linux/epoptes/ 49Linux/epoptes/ 51Linux/epoptes/ 53Linux/epoptes/ 54Linux/epoptes/ 55Linux/epoptes/ 56Linux/epoptes/ 60Linux/epoptes/ 63Linux/sch-scripts 65Linux/sch-scripts/ 66Linux/sch-scripts/ 68Linux/sch-scripts/ 70Linux/sch-scripts/ 72Linux/sch-scripts/ 74

Linux/sch-scripts/ 75Linux/LTSP/ 76Linux/LTSP// 77Linux/LTSP// 78Linux/LTSP//UPS 80Linux/LTSP// 84Linux/LTSP// 85Linux/LTSP// 90Linux/LTSP// hostnames 92Linux/LTSP// 93Linux/LTSP// 94Linux/LTSP// / 95Linux/LTSP// / 96Linux// 98Linux// 99Linux// 102Linux// 104Linux//Windows 105Linux//VirtualBox 106Linux/LTSP/FAQ 107

113 , 115

Linux/LTSP/ pdf 1

Linux/LTSP/ pdf

pdf pdf mwlib [1] PediaPress GmbH [2] / [3] [4] - [5]. pdf ( wiki). " - , , " 2007-2013[6].

pdf wiki : wiki [7] CCPL (Creative Commons Public License [8]) :

- - 3.0 [9]. : " - ,

, " ( [4] - [5])

"" [5], ( ).

. , . Creative Commons [9] [10].

wiki [11] .

Linux/LTSP 2

Linux/LTSP [3] 12.04 (Precise) Ubuntu[1] LTSP [2], .

Ubuntu LTSP & & sch-scripts & Online &MS-Windows Terminal Server :

, , , , .. [3] 116 . , : - Ubuntu LiveCD ( / MS-Windows)

.1. Ubuntu2. sch-scripts3. 4. 5. 6. 7.

, : sch-scripts LTSP Linux ( & & MS-Windows

Terminal Server ) (F.A.Q.)

Linux/LTSP 3

[4] [5] pdf [6]. pdf wiki pdf wiki .

Linux/LTSP/ 4

Linux/LTSP/ -:

Ubuntu

LTSP

Ubuntu [1] GNU/Linux. , Canonical. , (LTS, Long TermSupport) . LTS , LTS. LTS Ubuntu 12.04 PrecisePangolin, (04) 2012 (12). LTS (10.04) 2015.

LTSP

LTSP [2] , . , , . , .

2 , thin fat clients.

Thin client 128 500 MB RAM / Pentium IV, thin client. , / (,, ) ., (CPU, RAM, HDD). Windows 98 remotedesktop (RDP) MS-Windows 7/2008 .

Linux/LTSP/ 5

Fat client (CPU Pentium IV RAM 512 MB RAM), fat client. ( USB ), , . LTSP, clients ( ) MS-Windows . LTSP fat clients CPU & RAM Ubuntu [1].

"" /. Ubuntu , LibreOffice, Firefox, , CDROM, () , torrents . . , "", , Ubuntu, , . Ubuntu .

tablets smartphones AndroidMarket,AppStore, WindowsMarket ...

debian (.deb) ( MS-Windows) [2]. , , "dimotiko" Ubuntu.

Ubuntu. , , [3]. , Ubuntu.

sch-scripts sch-scripts . , , LTSP , . sch-scripts ,

Linux/LTSP/ 6

.

(Epoptes) Ubuntu . Netop School, Netsupport School, iTalc MS-Windows, (, ,...), , , .

Linux/LTSP/ 7

Linux/LTSP/ , :

thin fat clients . , , MS-Windows .

Thin clients 128 - 400 Mb RAM thin clients.

128 M RAM .

Fat clients 400 Mb RAM fat clients. LTSP fat clients CPU & RAM Ubuntu [1]. : 1GB RAM Pentium 4 . Ubuntu LiveCD . "" Linux//_.

gigabit. flow control, Intel Broadcom Atheros. thin clients (.. 5, 20), / . : (dual core) RAM 3 GB .

fat clients, , single core 1 GBRAM .

Ubuntu LiveCD . "" Linux//_.

Linux/LTSP/ 8

gigabit server switch, (switch) gigabit. , (640x272 24 fps) divx thin client 50 Mbps . video 10 thin client 10x50=500Mbps, Gigabit . gigabit . 100 Mbps switch switch , . 100 Mbps, gigabit. , gigabit. 40-150 gigabit switch , , 7-25 gigabit.

Linux/LTSP/ 9

Linux/LTSP/

LTSP ( )

(thin fat) . . . , ,

(lts.conf) . ,

. ( ) ( Linux

/)

fat clients thin . full HD thin client 1 Gbps,

fat client Mbps. 3D , google-earth, Unity-3D, Gnome-shell . ,

thin. RAM CPU ,

, Gigabit . ( fat clients Pentium IV 1GB RAM Fast Ethernet ).

sch-scripts. , , (sch-scripts) ().

, [2]. ( ), wiki, ,

IRC, . (

MS-Windows Server & Workstations LinuxLTSP thin/fat clients MS-Windows ).

Linux/LTSP/ 10

Linux/LTSP/

LTSP LTSP . : (central point of failure): ,

. : :

. sch-scripts .

: . . Linux , .

gigabit server switch ( switch gigabit).

. thin client 128MB RAM. ISA

. MS-Windows .

, Linux LTSP MS-Windows Terminal Server MS-Windows XP/7 workstation RDP thin & fat clients .

Linux/LTSP/ Ubuntu 11

Linux/LTSP/ Ubuntu Ubuntu LiveCD Ubuntu [1]. ubuntu-12.04.1-desktop-i386-sch.iso, CD CDROM . USB stick [2]. CD USB stick BIOS ( F12 bootmenu) . , .

: . Ubuntu.

LiveCD F.A.Q [3]

Linux/LTSP/ 12

Linux/LTSP/

Ubuntu MS-Windows

Ubuntu LTSP , Ubuntu 12.04 LTSP ( ts.sch.gr -- Ubuntu-LTSP12.04.zip) http:/ / ts. sch. gr/ vms.

(Download Manager). uGet [1], FreeDownload Manager [2], Orbit [3]. (md5 sums) MD5SUMS.txt

( VirtualBox), sch-scripts, , , . : VirtualBox MS-Windows (host) Ubuntu LTSP ( ) sch-scripts:

IP ( )

LTSP clients ( (GBytes) "" )

.

ubuntu . :

: administrator : pwdpwd

12 3 (a1, a2, b1, b2, c1, c2). : : user01a1..........user12a1 : pass01a1..........pass12a1

Linux/LTSP/ 13

.... : user01c2..........user12c2 : pass01c2..........pass12c2

/ ( ).

(hosts) Gigabit GigabitSwitch.

html "" flash xvid 608 x 336

thin clients

thin clients 3GB RAM .

RAM

CPU

thinclients

Laptop, Core2Duo T9300, 3 GB RAM (2010) 2 GB 2 7

Desktop, Corei3 2100, 4GB RAM (2011) 3 GB 2 10

Desktop Core2Duo 2,13GHz (E6400), 4GBRAM (2007)

2 GB 2 4

fat clients

fatclients .

RAM CPU fat clients

Desktop,Pentium 4 2,4GHz, 2GB RAM (2002)

1 GB 1 10

Linux/LiveCD 14

Linux/LiveCD

Live CD & Live DVD , live CDs/DVDs: ubuntu-12.04.3-desktop-i386-sch.iso [1]: Live CD . ubuntu-12.04.3-desktop-i386-dim.iso [2]: Live DVD

. ubuntu-12.04.3-desktop-i386-gym.iso [3]: Live DVD . ubuntu-12.04.3-desktop-i386-lyk.iso [4]: Live DVD

/.

(Download Manager). uGet [5], FreeDownload Manager [2], Orbit [3]. (md5 sums) MD5SUMS.txt [6]

Live CD/DVD live CD Ubuntu : CD, ..

LibreOffice live session, .

Gnome Classic (no effects) Unity. ' , thin clients , 10.04. , Unity-2D 3D .

live CD Ubuntu. live CD. , , , x11vnc

(Alt+F2, x11vnc -connect ) .


Linux/LTSP/ Ubuntu Ubuntu LiveCD Ubuntu [1]. ubuntu-12.04.3-desktop-i386-sch.iso, CD CDROM . USB stick [1]. CD USB stick BIOS ( F12 bootmenu) . , .

live CD . , (: , , ). , Gparted.

, Ubuntu 12.04.3 LTS.


.

Ubuntu

.

.

.


Ubuntu. , . ( NTFS MS-Windows) Ubuntu. .1. .2. MS-Windows .3. Linux .

;

Athens. .


Greek. Greek. .

;

, , Keyboard Layout Settings..., Reset to Defaults.

: .

:server.

"server" LTSP clients , ( MS-Windows Server).

: administrator.

, .

( ): .


: .

administrator , . .

.

() , ( 15', Internet), , .

.

Linux/sch-scripts/ 20

Linux/sch-scripts/ sch-scripts, Alt+Ctrl+T ( Alt+F2 ) :

sh -c 'cd /tmp && wget ts.sch.gr/repo/sch-scripts && sh sch-scripts'

.

() , , ***** "".

"Error in sch-scripts: ", .

sch-scripts "", LTSP, dnsmasq, . sch-scripts. , sch-scripts , .

Linux/Gparted 21

Linux/Gparted

Gparted Gparted LiveCD Ubuntu. : , ( C: drive) , UUID (data rescue) Filesystems : btrfs, ext2 / ext3 / ext4, fat16 / fat32, hfs / hfs+, linux-swap, lvm2 pv, nilfs2, ntfs, reiserfs / reiser4, ufs, xfs

Gparted

Gparted.

LiveCD

Gparted Ubuntu .

LiveCD Space .

LiveCD , Gparted Ubuntu, "gparted". , :

sudo apt-get install gparted

Linux/Gparted 22

, Gnome Gparted, :

sudo gparted

(sudo) .

, . . . :

.

, ,

() , ()

, Gparted

. , .

Linux/Gparted 23

:1. ,2. ,3. .

, Gparted .

combobox .

, , menu Gparted .

: ( ), .

" /path-to-device". msdos,

.

()

.

, .

. " ".

Linux/Gparted 24

.

, , , .

.

(MiB) , .

. . .

Linux/Gparted 25

: (shrink) , .

.

.

(shrink operation).

/. " / /path-to-partition".

, , ( ).

, ( ).

Linux/Gparted 26

, / .

NTFS , /MS-Windows :

file system :

C:> chkdsk /f /r

"paging file" ( /)

10% NTFS

, ( 2,12GiB) "" Ubuntu.

, , .

, .

, .

.

: , boot ,

.

Linux/LTSP/ Ubuntu/ 27

Linux/LTSP/ Ubuntu/

, .

Ubuntu

Ubuntu :1.

. Ubuntu. .

, Linux, (: swap Ubuntu ...):

1. .

Linux/LTSP/ Ubuntu/ Ms-Windows 28

Linux/LTSP/ Ubuntu/Ms-Windows

MS-Windows

MS-Windows .

Ubuntu "Microsoft Windows XPProfessional".

MS-Windows Ubuntu Windows:1.

. Windows Ubuntu.

Linux/LTSP/ Ubuntu/ Ms-Windows 29

. .3. ,

.

MS-Windows Windows Ubuntu:1.

. .

, Linux, (: swap Ubuntu...):

1. .

Linux/LTSP/ Ubuntu/ Linux 30

Linux/LTSP/ Ubuntu/Linux

Linux

Linux, .

Ubuntu "Ubuntu 10.04.4 LTS".

Linux Ubuntu Linux :1.

. Linux Ubuntu.


. .3. ,

.

Linux Ubuntu ( ):1.

. .

Linux Linux Ubuntu:1.

.


.

, Linux, (: swap Ubuntu...):

1. .


Linux/sch-scripts/ , IP . , (DHCP) ., (sch-scripts), .

IP IP .

DHCP IP .

, . .

(, ), DHCP IP .


IP

IP , , ( 10.50.40.0). (sch-scripts) IP 10.x.y.10.

IP, , IP 10.50.40.10 :

ping 10.50.40.10

10.x.y.10 10.x.y.11 DHCP (DHCP pool), Cisco routers IP 10.x.y.10 - 10.x.y.126.

() IP .


IP

DHCP . IP DNS , UbuntuServer.

, () services .

Linux/ 36

Linux/

.

, Ubuntu E. .

Ubuntu Ubuntu

, , . . , dim, , , gym lyk .

; "" "" .

online ( ) http:/ / ts. sch. gr/ software.


Linux/sch-scripts/ (sch-scripts), , sch-scripts .

, 10 . () .

() .

, /home, /opt/ltsp/images/i386.img. , RAM( Deep Freeze Windows).

/etc/ltsp/ltsp-update-image.excludes.

, thin clients, , thin clients server ( fat ). , :

/usr/share/gym-*/usr/share/lyk-*/usr/share/dim-*


Linux/sch-scripts/ (sch-scripts) / . :

(..user01 client01, user02 client02 ...), username/password. , .

, .


(.. tmima_a1_pc01,tmima_b2_pc03...) . , , . , ( ) sch-scripts( ). .

, . (), , . 72 .

300 .

' epwvumo_ovoma, . ( , , , projects...) . , (sch-scripts) .


sch-scripts. .

: , , UID, , , , , , , .

, /home/ .

UID ( ) . . . .

Ubuntu 10.04 12.04 (/home/teacher) teacher. teacher 10.04 UID = 1234 GID = 5678. teacher UID GID , . sch-scripts (tooltip). . UID GID 1234 5678 , .

, csv , .


csv

" ".

csv .

csv .

(), , email , , (sch-scripts), csv....

, , csv... . , / .

LibreOffice sch-scripts. , csv... . . , . . , , , .


, . , , . . . .

. (tooltip).

passwd

passwd.

passwd passwd . passwd. . Ubuntu 10.04 Ubuntu 12.04. passwd, shadow, group, /etc, .

passwd, shadow group, .

passwd, csv...


.

sch-scripts .. , , . , ... sch-scripts. .

.

, , 1-10 , 10 . , , .

.


.

, , , , .

, .

Linux/LTSP/ 45

Linux/LTSP/ , . .

BIOS

PCI slot, . PCI slot, . BIOS : Onboard H/W LAN: Enabled (

)

Onboard LAN Boot ROM: Enabled ( Boot ROM ), PXE: Enable

First Boot Device: LAN ( 1 )

Windows

Windows>= 2000, win32-loader.exe [1], bootmanager Windows . Linux/LTSP/ /Win32-loader

Windows 9x

Windows 95/98/Me, win98-loader.exe [2], C:\, C:\boot\grub\install.bat.

Ubuntu

Ubuntu, grub-ipxe [3], grub .

Debian

ipxe, grub .

Linux/LTSP/ 46

CDROM , CDROM. CDROM, ipxe.iso [4] CDROM . BIOS CDROM.

ipxe.dsk [5] , :Linux:

dd if=ipxe.dsk of=/dev/fd0

Windows: RawWrite [6], dd [7] WinImage [8].

Linux/Ubuntu 47

Linux/Ubuntu Ubuntu http:/ / ubuntu-manual. org. LTS 10.04 Ubuntu, 2012 12.04. https:/ / help. ubuntu. com/ 12. 04/ ubuntu-help/ index. html http:/ / www.ubuntu-gr. org.

wiki.

Linux/epoptes 48

Linux/epoptes

(Epoptes)(http:/ / www. epoptes. org/ [1]) Ubuntu . :

& ,() , , , ,

, ,

, ( ),

/ , ,

,

.

(root) , teachers. .

1. 2. 3. 4. 5. 6. 7. (Epoptes)

sch-scripts ( 10.04) . 12.04 epoptes ubuntu.

Linux/epoptes/ 49

Linux/epoptes/

Epoptes & Ubuntu 12.04 LTSP sch-scripts linux LTSP LTSP thin fat clients.

LTSP ( Ubuntu ).

Epoptes & Ubuntu 10.04 LTSP (10.04) Ubuntu LTSP sch-scripts. 12.04 LTSP Epoptes.

Epoptes & (standalone - LTSP) Ubuntu Ubuntu (standalone ) Epoptes .

epoptes :1. epoptes .

sudo apt-get install epoptes

2. epoptes-client .

sudo apt-get install epoptes-client

12.04 Ubuntu (10.04, 11.04, 11.10), :

sudo add-apt-repository ppa:ts.sch.grsudo apt-get update

Linux/epoptes/ 50

epoptes. :

sudo gpasswd -a teacher epoptes

"teacher" . log off / log on

epoptes-client IP ( ). /etc/hosts:

sudo gedit /etc/hosts

IP (10.x.y.z) :

10.x.y.z server

:

sudo epoptes-client -c

. / /.

Linux/epoptes/ 51

Linux/epoptes/

Epoptes

(Epoptes) :

Epoptes, , ,

( Alt+Ctrl+T )

epoptes

(root) , teachers. .

.

, . (Epoptes) :

,

/ Groups ,

, LTSP .

Linux/epoptes/ 52

, , . / . , . / , - ., . (LTSP thin clients, LTSP fat clients standalone/) . ( ). .

.

Linux/epoptes/ 53

Linux/epoptes/

.

, , . . , .

. .

Linux/epoptes/ 54

Linux/epoptes/ . : , , , , . . .

.

.

Linux/epoptes/ 55

Linux/epoptes/

, :

,

,

,

.

Wake On Lan BIOS .

, . , .

, : (thin, fat standalone), , , MAC , IP , , , RAM, . , . .

.

Linux/epoptes/ 56

Linux/epoptes/ (Epoptes) . .

.

:

,

,

/ :

, , . . . . / .

Linux/epoptes/ 57

,

.

. , / . / , . , . (Epoptes) .

:

, , .

, .

.

.

Linux/epoptes/ 58

:

, (Epoptes)

, , .

. H .

:

firefox http:/ / ts. sch. gr

Mozilla Firefox Wiki [7]. :

http:/ / ts. sch. gr/ wiki

\ /1.odt

.

.

:

killall firefox

Unix/Linux .

() / / /. . : , . : , ( /

), , ( / root), , ( root).

Linux/epoptes/ 59

Pango markup

/ . :

,

,

.

Pango markup ( checkbox).

.

/ / . / , . / ( ). .

Linux/epoptes/ 60

Linux/epoptes/

(groups)

"".

. / . / (Groups) / . (Epoptes) , (Group) . . New group , .

Linux/epoptes/ 61

.

"1".

"2".

Linux/epoptes/ 62

.

.

. , .

. , () .

, , . . , . ( ) , ., (Wake On LAN).

Wake On LAN.

, MAC . , .

.

.

Linux/epoptes/ 63

Linux/epoptes/

(Epoptes)

(Epoptes) HTML.

Internet .

(Epoptes) [1] (Epoptes).

Bugs [2] .

Linux/epoptes/ 64

Questions [3] . IRC.

, . ( ) . IP / . VNC . , . IP .

Translations [4] .

(Epoptes) Launchpad [5]. 30 . .

, , .

Linux/sch-scripts 65

Linux/sch-scripts (sch-scripts) LTSP (LinuxTerminal Server Project) Ubuntu . :

LTSP ,

LTSP LTSP thin & fat clients (, ) / ,

.

(sch-scripts) (Epoptes) (root).

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. (sch-scripts)


Linux/sch-scripts/

(sch-scripts) :

, ,

( Alt+Ctrl+T )

sch-scripts

.

(sch-scripts) (Epoptes) (root).

, . (sch-scripts)

:

,

(groups) ,

, .


, , , , . , / . / ., .

.

.


Linux/sch-scripts/

, , /home/username/.

sch-scripts, . - .

/home/Shared/groupX , administrator .

sch-scripts :

/home/Shared administrator administrator rwx--x--x (711)

/home/Shared/a1 administrator a1 rwxrwx--- (770)

/home/Shared/a2 administrator a2 rwxrwx--- (770)

/home/teacher1//a1 teacher1 a1 rwxr-x--- (750)



administrator Ubuntu ( UID=1000) /home/Shared, sudo.

"/home/Shared/groupX" groupX, . , , projects .

teacherX "/home/teacherX//groupX" . , . , . , teacher1 a1 a2, teacher2 a1.


, , . ,

a1u1 a1 /home/a1u1//a1 /home/Shared/a1

a1u1 a1 /home/a1u1// 1 /home/teacher1//a1

teacher1 a1,a2 /home/teacher1//a1 /home/Shared/a1

teacher1 a1,a2 /home/teacher1//a2 /home/Shared/a2

, : sch-scripts bindfs [1],

, Linux, .

, /etc/init/sch-scripts, , sch-scripts. bindfs.

, /etc/xdg/autostart/sch-scripts.desktop , group , group .

fat /home/Shared server LOCALAPPS_EXTRA_MOUNTS=/home/Shared lts.conf.

/etc/default/sch-scripts, sch-scripts sch-scripts.


Linux/sch-scripts/ , Linux :

/home/user1/

: user1 : user1

, . , sch-scripts "", "", "", "", "", "" "" :

/home/student1/

: student1 : teachers

, , teachers , . sch-scripts "", "","", " ", "", "" "" :

/home/teacher1/

: teacher1 : administrator

, administrator ( , UID=1000) sudo. "" , , , "" . , "", . , :


/home/teacher1//a1

: teacher1 : a1

, , sch-scripts /home/Shared/a1 , ( ) :

/home/Shared/a1

: administrator : a1

, sch-scripts , "" , . , "" , .


Linux/sch-scripts/ (sch-scripts) . , . sch-scripts - LTSP .

lts.conf

lts.conf LTSP. , (thin/fat clients), : , , hostnames .

: http:/ / manpages.ubuntu. com/ lts. conf.

(F.A.Q) lts.conf

shared-folders .

dnsmasq

dnsmasq PXE .


PXELinux

.

dnsmasq PXELinux (F.A.Q)


Linux/sch-scripts/ sch-scripts . : (, , )

lts.conf

dnsmasq

pxelinux PXELinux

fat clients ( )

,

.


Linux/sch-scripts/

"" (sch-scripts)

:

Wiki , ,

, Helpdesk IRC web chat

, Forum , [1]

LTSP (Linux Terminal Server Project), [2] lts.conf, LTSP,

.

, (sch-scripts).

Linux/LTSP/ 76

Linux/LTSP/ LTSP: UPS

Linux/LTSP// 77

Linux/LTSP//

project Scanner Access Now Easy (SANE) [1] API Linux . SANE [2] . .

Linux/LTSP// 78

Linux/LTSP// LTSP :

LTSP ( thin/fatclients)

LTSP server

, . " ,

LTSP clients LTSP server ., -LTSP clients, .

LTSP LTSP thin & fat clients

thin clients ( )

LTSP fat clients fat clients , LTSP server, sch-scripts . clients .

LTSP thin clients , lts.conf:

[a1:b2:c3:d4:e5:f6]KEEP_SYSTEM_SERVICES="cups"

Linux/LTSP// 79

cups thin clients, client . MAC address client .

LTSP thin/fat clients , client ( , LTSP clients ), lts.conf:

[a1:b2:c3:d4:e5:f6]LDM_PRINTER_LIST="printer 1,printer 2"LDM_PRINTER_DEFAULT="printer 1"

, :

lpstat -a

Linux LTSP Ubuntu .. LTSP fat client, LTSP clients, LTSP server, :

, , .

CUPS .

Linux/LTSP//UPS 80

Linux/LTSP//UPS

UPS UPS nut (Network UPS Tools [1]). UPS ( hardware compatibility list [2]) Network

UPS Tools ,

NUT nut :

sudo apt-get -y install nut nut-client nut-cgi

/etc/nut/ups.conf (driver) (port).

USB UPS

USB UPS APC Back-UPS, hardware compatibility list [2] usbhid-ups, [apc]:

[apc]driver = usbhid-ups

port = auto desc = "APC Back-UPS USB"

UPS

UPS MGE NOVA AVR 600 Serial ttyS0, hardware compatibility list [2] mge-shut, [mge]:

[mge]driver = mge-shut

port = /dev/ttyS0 desc = "MGE Nova 600AVR Serial"

/etc/udev/rules.d/99_nut-serialups.rules

sudo gedit /etc/udev/rules.d/99_nut-serialups.rules

:

KERNEL=="ttyS0", GROUP="nut"

:

sudo udevadm control --reload-rulessudo udevadm trigger

Linux/LTSP//UPS 81

ttyS0 ttyS1 UPS 1, 2

UPS nut

NUT UPS nut UPS , :

sudo upsdrvctl start

Network UPS Tools - UPS driver controller 2.2.2 Network UPS Tools: 0.29 USB communication driver - core 0.33 (2.2.2) Usingsubdriver: APC HID 0.92

/etc/nut/upsd.conf

sudo gedit /etc/nut/upsd.conf

ACL all 0.0.0.0/0 ACL localhost 127.0.0.1/32 ACCEPT localhost REJECT all

/etc/nut/upsd.users:

sudo gedit /etc/nut/upsd.users

[local_mon]password = PASSWORDallowfrom = localhostupsmon master

/etc/nut/upsmon.conf:

sudo gedit /etc/nut/upsmon.conf

MONITOR apc@localhost 1 local_mon PASSWORD master POWERDOWNFLAG /etc/killpower SHUTDOWNCMD"/sbin/shutdown -h now"

"PASSWORD" administrator apc UPS /etc/nut/ups.conf

Linux/LTSP//UPS 82

( )

sudo chown root:nut /etc/nut/*sudo chmod 640 /etc/nut/*

/etc/default/nut upsd & upsmon :

sudo gedit /etc/default/nut

START_UPSD=yesSTART_UPSMON=yes

/etc/nut/nut.conf nut :

sudo gedit /etc/nut/nut.conf

MODE=standalone

:

sudo service ups-monitor stopsudo service ups-monitor start

E UPS mge UPS

sudo upsc mge

UPS

Linux/LTSP//UPS 83

battery.charge: 100battery.charge.low: 30battery.runtime: 1000device.mfr: MGE UPS SYSTEMSdevice.model: NOVA 600 AVRdevice.serial: unknowndevice.type: upsdriver.name: mge-shutdriver.parameter.pollinterval: 2driver.parameter.port: /dev/ttyS0driver.version: 2.6.3driver.version.internal: 0.69output.voltage: 230ups.load: 11ups.mfr: MGE UPS SYSTEMSups.model: NOVA 600 AVRups.power.nominal: 600ups.serial: unknownups.status: OL CHRGups.timer.shutdown: -1ups.timer.start: -1

[apt://wmnut wmnut] UPS

wmnut

Linux/LTSP// 84

Linux/LTSP// web ( notebooks USB) Ubuntu . webcams Linux Linux UVC Project's UVC driver [1] USB.

webcam UVC [2].

web cheese. Alt+Ctrl+T ( Alt+F2 ) :

sudo apt-get install cheese

cheese .

Skype, Empathy webcams.

[3]

Linux/LTSP// 85

Linux/LTSP//

Ubuntu LTSP.

Ubuntu LTSP LTSP (google maps) LTSP :

() http:/ / www. ltsp. org/ stories/ . ,

LTSP, (. 1).

Linux/LTSP// 86

1. Ubuntu LTSP

Add your own LTSP Story! [1] . Save my information (. 2).

2. .

Linux/LTSP// 87

, ,

(. 3), : , , Linux, LTSP, , , .

3. . 4. Latitude

Longitude

Address / Coordinates (. 3) Convert address to longitude/latitude (. 4).

email, , link "" .

( ) :

https:/ / maps. google. gr/ ,

, 20 , .

, , ;, , Longitude Latitude

.

Linux/LTSP// 88

,

Add Detailed Information "" (. 5).

5. .

Thin Clients, Local Apps, Fat Clients? Hardware for LTSP?.

, email, "". , http:/ / www. ltsp. org/ stories/ forgotlink/ . , email . email . , : E-mail Address Your Name (First and Last) Organization Name Organization website Why LTSP?

Linux/LTSP// 89

Edit Story, : Description Address/Coordinates

GPS . .

Linux Distribution LTSP Version Number of Servers Number of Clients Number of Thin Clients Number of Fat Clients Click here to edit this location, Add Detailed Information.

[1] LTSP http:/ / www. ltsp. org/ stories/ http:/ / www. ltsp. org/stories/ widget-map/ ?location=Greece.

Linux/LTSP// 90

Linux/LTSP// , sch-scripts Gnome Classic (Noeffects) , thin fat clients, Ubuntu 10.04. , .

(), . , :

ls /usr/share/xsessions

, :

sudo /usr/lib/lightdm/lightdm-set-defaults -s gnome-fallback

( ), LDM_SESSION="gnome-fallback" lts.conf. , .

Ubuntu (Desktop Environments,DE), :

Linux/LTSP// 91

Ubuntu Gnome GTK

Kubuntu KDE Qt

Xubuntu XFCE GTK

Lubuntu LXDE GTK

. Windows, Linux " " , ,, . Gnome, 3, interface . DE LXDE, .

(session) , , , ., . , GnomeShell (gnome-session) Gnome 3 , :

thin clients

Ubuntu ubuntu Unity 3D Ubuntu. 3D thin clients. Canonical Linux. , interface, bugs ' .

Ubuntu 2D ubuntu-2d Unity 2D Ubuntu Unity 3D. Ubuntu 12.04.

GNOME gnome-session Gnome, Ubuntu. Gnome Shell Unity, .

GNOMEClassic

gnome-classic "Classic" Gnome 2 Ubuntu 10.04. (compiz) thin clients.

GNOMEClassic (Noeffects)

gnome-fallback , clients, thin fat, ' sch-scripts LDM_SESSION="gnome-fallback" lts.conf.

, Linux Mint Gnome, Cinnamon ( 3D, thin) Mate (fork Gnome 2)., () thin clients gnome-fallback, fatclients 3D, gnome-fallback, ubuntu, gnome-session.

Linux/LTSP// hostnames 92

Linux/LTSP// hostnames (hostnames) LTSP clients, .. client pc01, , .

, , " ". "", " " . , " ", - clients, " " client , . Linux/epoptes/ : hostnames, . client

.. pc01 ltsp132. , .

Hostnames lts.conf sch-scripts , lts.conf. , , mac address client. lts.conf, clients:

[a1:b2:c3:d4:e5:f6]HOSTNAME=pc01

Linux/LTSP// 93

Linux/LTSP// Ubuntu 12.04 linux-image-generic-pae, Physical Address Extensions 64 GB RAM 32 bit. clients , :

This kernel requires the following features not present on the cpu: pae.Unable to boot please use a kernel appropriate for your cpu.

' , Alt+Ctrl+T , :

sudo apt-get install linux-image-generic

kernel. sch-scripts, clients.

Linux/LTSP// 94

Linux/LTSP// :

Linux/LTSP// / 95

Linux/LTSP/// (Epoptes) . , . . / , .

thin clients .

Linux/LTSP// / 96

Linux/LTSP/// . , . , , . , dnsmasq, MAC "" , lab.conf.

lab.conf : . . /etc/dnsmasq.d/ Alt+Ctrl+T

:

cd /etc/dnsmasq.d/

lab.conf :

sudo gedit lab.conf

(root) / .

(Epoptes) MAC lab.conf.

MAC .

MAC .

MAC :

dhcp-mac=, lab : dhcp-mac=lab,00:1d:a1:b9:27:b3

lab.conf :

Linux/LTSP// / 97

dhcp-ignore=#lab

MAC . . dnsmasq :

sudo service dnsmasq restart

.

lab.conf

dhcp-ignore=#lab

dhcp-ignore=lab

Linux// 98

Linux//

sch-scripts, Linux/sch-scripts/

. :

sudo apt-get autoclean

(dependencies) , :

sudo apt-get autoremove

( ) grub : linux-image ( ) click click

"linux-headers" ( )

linux-headers- linux-headers--generic-pae

Linux// 99

Linux// , .

IP Cisco routers. server IP=10.x.y.10 IP srv-sxoleio.nom.sch.gr ( , srv- ). IP , , ..:

host srv-gym-pedin.ioa.sch.gr nic.sch.gr

IP Cisco routers srv-sxoleio.nom.sch.gr IP. ' , 2 : http:/ / www. no-ip. com IP .

DNS providers http:/ / dnslookup. me/ dynamic-dns. dynamicdns router . IP http:/ / ts.sch. gr/ tech/ ip.

Port forwarding 8022 router .

SSH SSH 22, ( ), . .. 8022, , :

sudo xdg-open /etc/ssh/sshd_config

:

Port 22Port 8022

, :

ssh -p 8022 [email protected]

Linux// 100

x2go x2go . , SSH, x2go. , x2goserver:

sudo apt-get install x2goserver

, Windows, x2go client : http:/ / www. x2go. org/ doku.php/ download:start, Ubuntu, x2go client:

sudo add-apt-repository ppa:ts.sch.grsudo apt-get updatesudo apt-get install x2goclient

X2Go Client, Session New session. : Session name: Host: srv-sxoleio.nom.sch.gr Login: administrator SSH port: 8022 Session type: GNOME Settings:

Keyboard: Keep current keyboard settings ( Windows, : us,gr). . . login .: x2go SSH , ssh () . ssh x2go, , x2go . /home/username/.ssh/known_hosts x2go . ssh () . x2go, :

setxkbmap -layout "us,gr" -option "grp:alt_shift_toggle,grp_led:scroll"

Linux// 101

VNC (access-lists) . "" / / . VNC. IP portforwarding : 5500 ( Ubuntu ) 5900 ( MS-Windows ) .

1: LTSP LTSP :

x11vnc -loop -connect_or_exit ip-spitiou

Menu IP

2: / , / : Ubuntu :

xvnc4viewer -listen

MS-Windows ( UltraVNC [1]) :

C:\Program Files\UltraVNC\vncviewer -listen

Linux// 102

Linux// LTS LTS Ubuntu, 10.04 12.04. , 10.04 LTSP tftpd-hpa TFTP server, sch-scripts 12.04 dnsmasq, tftpd-hpa. , , . , , . backup . , 12.04 clients 128 MBRAM , 12.04, 10.04 . ' ( sch-scripts ) .

, 4 partitions Linux. Windows, extended partition, primary partitions 4. , .. sda1 = 100 Gb , .. sda2 = 100 Gb /home , .. sda3 = 200 Gb swap partition, .. sda4 = 10 Gb

partition , , , (.. lts.conf) . live CD 12.04, Ubuntu, , Alt+Ctrl+T .

, sda1 partition Ubuntu:

Linux// 103

sudo -i

# , Ubuntu sda1.

blkid

# .

mount /dev/sda1 /mnt

# srv/10.04

# srv

# ,

# LTSP .

mkdir /mnt/srv/10.04

find /mnt/ -mindepth 1 -maxdepth 1 ! -name home ! -name srv -exec mv {} /mnt/srv/10.04/ \;

#

umount /mnt

exit

, , sda1 / . /var, /lib, /usr , , /srv/10.04.

, sch-scripts . , , ../../sch-scripts/ .

Linux// 104

Linux// Ubuntu : Ubuntu [1] .

Ubuntu, Ubuntu Certified [2].

Ubuntu, Ubuntu Friendly [3].

, (CPU, Chipset, VGA, Ethernet ) Certified Friendly

Ubuntu Live CD Ubuntu System Testing.

System Testing , Ubuntu Friendly [4]

Linux//Windows 105

Linux//Windows

MS-Windows Ubuntu LTSP MS-Windows Ubuntu LTSP . RDP . , MS-Windows

Ubuntu ( )

:1. VirtualBox Ubuntu 2. , ,

Ubuntu

3. MS-Windows Server MS-Windows 7/XP Professional . ( )

4. IP , 10.x.y.20 ( 10.x.y.z ).

5. Terminal Server (Remote Desktop Server) RemoteDesktop MS-Windows 7/XP

6. ( MS-Windows)

Remote Desktop Server MS-Windows Server 180 (Remote Desktop Services Client Access Licenses - RDS CALs) MS-Windows Server, MS-Windows Server CALs

Remmina RDP MS-Windows. (Screen) lts.conf :

SCREEN_06=xfreerdp -f --plugin rdpsnd --data alsa --gdi sw -- 10.x.y.20SCREEN_07=ldm

Ctrl+Alt+F7 Ubuntu Ctrl+Alt+F6 MS-Windows

MS-Windows 7/XP RDP Remote Desktop Server , MS-Windows 7/XP , Ubuntu

Linux//VirtualBox 106

Linux//VirtualBox

VirtualBox VirtualBox /VirtualBox

Alt+Ctrl+T

sudo apt-get install virtualbox

/VirtualBox#

/VirtualBox#

VirtualBox VirtualBox /VirtualBox#

Linux/LTSP/FAQ 107

Linux/LTSP/FAQ

F.A.Q (Frequently Asked Questions):

(gnome-panel) fat clients

[1]. , clients , , :

gsettings reset-recursively org.gnome.gnome-panel.layout && gnome-panel --replace

/ fat client

RAM thin client : sch-scripts lts.conf MAC LTSP_FATCLIENT=FALSE

[00:50:FC:98:CC:31]HOSTNAME=client01LTSP_FATCLIENT=False

lts.conf sch-scripts lts.conf MAC ( user01 pass01) .

[00:50:FC:98:CC:31]HOSTNAME=client01LDM_AUTOLOGIN=TrueLDM_USERNAME=user01LDM_PASSWORD=pass01

sch-scripts lts.conf

XRANDR_MODE_0=1024x768XRANDR_RATE_0=85

:

X_HORZSYNC=30.0-88.0X_VERTREFRESH=50.0-86.0

Linux/LTSP/FAQ 108

/ refresh rates mac . [Default]

LTSP clients login

X-Windows . sch-scripts lts.conf LTSP :

[00:50:FC:98:CC:31]XSERVER=VESA

(kernel) KMS (KernelMode Switching) . sch-scripts PXELinux "quiet splash" "nomodeset"

Gigabit Ethernet Fast Ethernet - flow control

Fast Ethernet (flow control). Gigabit Fast Ethernet , 20Mbps, . flow control. : (switch) flow control

( switch ). (

).

flow control Ethernet ( server) ( switch), server . gigabit server 100 Mbps client1, buffer switch server . server , clients. "head of line blocking".

flow control switch

switch IEEE 802.3x flow control .

switches (manageable) . , switches 150 16

Linux/LTSP/FAQ 109

flow control

flow control :

administrator@server:~$ sudo ethtool -a eth0Pause parameters for eth0:Cannot get device pause settings: Operation not supported

flow control. Atheros ( atl1c) Realtec. , flow control switch. (Operation not supported) flow control :

sudo ethtool --pause eth0 autoneg off rx off

flow control :

$ sudo ethtool --show-pause eth0Pause parameters for eth0:Autonegotiate: offRX: offTX: on

sch-scripts flow control, .

-

Ubuntu Live CD [2].

administrator .

, ( ) Greek

3 Alt+Shift.

.

Linux/LTSP/FAQ 110

-

Ubuntu Live CD [2].

( ) :

sudo locale-gen --purge

LiveCD

X-Windows. CD Space Function Keys. F6 "nomodeset". Esc Ubuntu .

"" ""

"" , login (group) teachers

"" "" LTSP Fat Client

User Interface "" LTSP epoptes. LTSP fat clients ( LTSP. LTSP fat client LTSP thin client LTSP Remote Apps LTSP Fat Client ""

LTSP :

ltsp-remoteapps epoptes

Linux/LTSP/FAQ 111

. "";

.

( ). ;

.

Grub . ;

sch-scripts Linux/sch-scripts/_. Linux//_

Grub ;

/etc/default/grub GRUB_DEFAULT= (1 1 , 2 2 ...) Grub Customizer [3]

Windows 8 Ubuntu. ;

MS-Windows 8 UEFI "" MS-Windows secure boot. http:/ / askubuntu. com/ questions/ 221835/installing-ubuntu-on-a-pre-installed-uefi-supported-windows-8-system

"" ;

:

sudo ethtool eth0 |grep Speed

thin clients 2 . ;

bond interface . :

sudo apt-get install ifenslave-2.6 sudo cp /etc/network/interfaces /etc/network/interfaces.backup sudo gedit /etc/network/interfaces

/etc/network/interfaces edit :

auto loiface lo inet loopbackauto eth0iface eth0 inet manualbond-master bond0auto eth1iface eth1 inet manualbond-master bond0auto bond0iface bond0 inet staticaddress 10.160.67.10netmask 255.255.255.0gateway 10.160.67.1

Linux/LTSP/FAQ 112

. network manager , . 14.04 Ubuntu bonding , network manager.

;

:

:

iperf -s -xS

, , , :

sudo iperf -c server -r

thin/fat clients

SiS191 pxe LTSP DHCP "" Negotiation: ..size = 1465MB 10.04 LTSP BIOS

PCI.

113

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Ubuntu12.04LTSP.pdf

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