Transcript Document

NAS Features Presentation
SR200
Quanta Confidential
Agenda
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BT
iTune and Podcasting
RAID Migration
DLNA and UPnP
Samba
Print Server
DDNS
Backup
Quanta Confidential
BT
Quanta Confidential
What is BT
• BitTorrent
– A peer-to-peer file distribution protocol
– Contain Client and tracker
– Use a torrent file with a suffix .torrent
Quanta Confidential
BT Components
• Client
• Server
– Tracker, Web Server
• Torrent file
Quanta Confidential
How BT works
• Server
– Tracker service
– Web service
– Relate the .torrent file with the types of MIME
application/x-bittorrent
– Create .torrent file with tracker and URL of
resource
– Publish .torrent file to the Web
– Create Web page with .torrent file link
– Run a origin orQuanta
seed
Confidential
How BT works
• Client
– Install BitTorrent
– Provide Web browser
– Link the .torrent file
– Choose where the file will be saved
– Wait for download until succeed
– Cancel the bt process
Quanta Confidential
.torrent file format
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d8:announce34:http://tracker.ydy.com:86/announce10:createdby13:BitComet/
0.5813:creationdatei1117953113e8:encoding3:GBK4:infod6:lengthi474499162
e4:name51:05.262005.StarWars Episode IV A New HopeRv9.rmvb10:name.utf-851:05.26.2005.Star WasEpisode IV A New HopeRv9.rmvb12:piecelengthi262144e6:pieces36220:XXXXXXXXXXXXXXX
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Tracker: http://tracker.ydy.com:86/announce
Create by BitComet/0.58
Caeation date: 1117953113 second after 1970-1-1 00:00
Info
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Length : 474499162 bytes
Name : 05.262005.StarWars Episode IV A New Hope-Rv9.rmvb
Name. UTF-8 : 05.262005.StarWars Episode IV A New Hope-Rv9.rmvb
Piece length : 262144 bytes
Pieces : 36220 bytes
SHA-1 hash value
Quanta Confidential
How BT works
Quanta Confidential
How BT works
• Peer to Tracker
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info_hash
peer_id
port
uploaded
downloaded
left
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compact
event
ip
numwant
trackerid
Info hash, peer id,
download, ip, numwant
Quanta Confidential
How BT works
• Tracker to peer
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failure reason
warning message
interval
min interval
tracker id
– complete
– incomplete
– peers
• peer id
• ip
• port
peers ( peer id, ip, port )
Quanta Confidential
How BT works
• info <len><id><payload>
– keep-alive: <len=0000> every two minutes
– choke: <len=0001><id=0>
– unchoke: <len=0001><id=1>
– interested: <len=0001><id=2>
– not interested: <len=0001><id=3>
Quanta Confidential
How BT works
• info <len><id><payload>
– have: <len=0005><id=4><piece index>
– bitfield: <len=0001+X><id=5><bitfield>
– request:
<len=0013><id=6><index><begin><length>
– piece:
<len=0009+X><id=7><index><begin><block>
– cancel:
<len=0013><id=8><index><begin><length>
Quanta Confidential
How BT works
• Operation Feature
– stream operation ( five packet once )
– segment choice ( choose order )
– random first segment
– the fewest first
– last step mode
Quanta Confidential
BT on NAS
• Play a client role
• Save users resources
• Continous download files without PC
Quanta Confidential
iTune and Podcast
Quanta Confidential
What is iTune
Quanta Confidential
What’s iTune can do
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Playlists
Music Library
iMix
Internet radio
File format support
– MP3, AIFF, WAV, MPEG-4, AAC
• Music sharing
– Digital Audio Access Protocol (DAAP)
• Video
• Podcasting
• Synchronizing iPod and other players
Quanta Confidential
How iTune works (DAAP)
• The protocol is introduced by Apple in its
iTunes software to share media across a
local network
• A DAAP server is a specialized HTTP
server
• Requests are sent to the server by the
client in form of URLs
( daap://server/server-info or http://server:3689 )
Quanta Confidential
How iTune works (DAAP)
• It sends a list of songs and it streams
requested songs to clients
• The responses have the mime-type
application/x-dmap-tagged
Quanta Confidential
What’s Podcast
• A podcast is a media file that is distributed
by subscription (paid or unpaid) over the
Internet using syndication feeds
• The host or author of a podcast is often
called a podcaster
• It is distinguished from other digital audio
formats by its ability to be downloaded
automatically, using software capable of
reading feed formats such as RSS or Atom
Quanta Confidential
What’s Podcast
Quanta Confidential
How to podcasting
Quanta Confidential
iTune and Podcast on NAS
• Both play server roles
• Reduce the time of users to organize the
media files
• Provide a podcast server to outside users
without PC
Quanta Confidential
RAID migration
Quanta Confidential
RAID Migration
• Allows data volumes to be moved between
different-sized RAID groups
• Use to
– maintain data integrity
– allow normal business to continue
• Benefits
– Provides non-stop logical volume migration to different
RAID groups comprised of larger capacity disk drives
– Enables non-stop migration of RAID groups to match
specific needs for higher reliability and performance
Quanta Confidential
RAID Migration
http://www.fujitsu.com/global/services/computing/storage/system/eternus4000/feature/STRSYS_D09.html
Quanta Confidential
RAID Migration
http://www.fujitsu.com/global/services/computing/storage/system/eternus4000/feature/STRSYS_D09.html
Quanta Confidential
DLNA and UPnP
Quanta Confidential
DLNA
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Digital Living Network Alliance
Digital Home Working Group (DHWG,
formerly)
DLNA is a cross-industry organization
– leading consumer electronics, computing
industry and mobile device companies.
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Members companies:
– Intel, Microsoft, Sony, Quanta…etc.
Quanta Confidential
DLNA Purpose
• Aim to industry standards
– Allow products from all companies to be
compatible with each other
• Enable a network of electronic devices in
the home
– consumers will be able to enjoy digital living
easily
Quanta Confidential
DLNA Purpose (cont.)
Quanta Confidential
Scenario
Enjoy listening to the
music stored in NAS on
high quality audio system
A NAS is joining the home
network. It becomes a
multimedia server
Favorite TV shows
had recorded on DVR
Gateway
Access favorite TV shows from
DVR, and view them on TV
The menu shows videos stored in
NAS. Now, we can watch Videos
or Photos on a large-screen TV
Quanta Confidential
DLNA Scenarios (cont.)
• The devices can discover and learn about
others automatically.
• Customers easily enjoy their life.
• DLNA certificate is available now through
PMTC (Professional Multimedia Test
center)
Quanta Confidential
DLNA Interoperability Guidelines
Quanta Confidential
What is UPnP?
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Universal Plug and Play
– dynamically join a network and obtain an IP
address
– convey its capabilities, and learn about other
devices
– enabling discovery and control of devices
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All automatically and zero-configuration
Quanta Confidential
What is UPnP?
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uses standard TCP/IP protocol suit
operating system、programming
language and physical medium
independent
E.g. network-attached printers and
consumer electronics equipment.
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Who Defines UPnP?
• Universal Plug and Play Forum (UPnP
Forum)
• http://www.upnp.org/
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UPnP Enabled Device
Device
Service 1
Service 2
UPnP Enabled Device
Control Point
Device
Control Point
Service
UPnP Enabled Device
Root Device
Embedded Device
Service
Service
State
Quanta
Table
Service 1
Control
Server
Event
Confidential
Server
Service 2
Devices
• A UPnP device consists of services and
nested devices
– a VCR device may consist of tape transport、
tuner and clock services.
– A TV/VCR combo device would consist not
just of services, but a nested device (VCR) as
well.
Quanta Confidential
Services
• A service in a UPnP device consists of a
state table ,a control and an event server
• It can exposes actions and models its
state with state variables
– E.g. a clock service
• a state variable, current_time
– defines the state of the clock
• two actions, set_time and get_time
– allow you to control the service.
Quanta Confidential
Control Points
• Is a controller capable of discovering and
controlling other devices.
– Retrieve the information of interesting devices
• Get the device and service descriptions
– Invoke actions to control the service
• Set_time
– Subscribe to the service’s event source
• E.g. Subscribers would receive an event when a
fire alarm service changes its state to “ringing”
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Protocols Used by UPnP
UPnP Vendor Defined
UPnP Forum Working Committee Defined
UPnP Device Architecture Defined
SSDP
HTTPMU
(Discovery)
GENA
SSDP
HTTPU
(Discovery)
UDP
SOAP
(Control)
HTTP
GENA
(Events)
HTTP
(Description)
TCP
IP
Quanta Confidential
Steps Involved in UPnP Networking
• Addressing
– A new device connects to a UPnP network and obtain an IP address
• Discovery
– Let others know “I join your club” (device)
– Search any interesting devices (control point)
• Description
– I wanna know more about you (device description)
• Control
– A control point knows a clock service of an alarm clock device and
invoke set_time to adjust the time (service description)
• Eventing
– A control point subscribes the “time is up” event to a alarm service
– The alarm service changes its state to “time is up” and sends an event
to subscribers
• Presentation (Optional ,vendor defined)
– Web page of a device. Allow users viewing the state and controlling
the device
Quanta Confidential
Steps Involved in UPnP Networking
• Addressing
– DHCP (DHCP server & client)
– Auto IP (reserved private addresses)
Quanta Confidential
Steps Involved in UPnP Networking
• Discovery
– SSDP (Simple Service Discovery Protocol)
– device to advertise its services to control points
on the network
• NOTIFY * HTTP/1.1
HOST: 239.255.255.250:1900
CACHE-CONTROL: max-age = seconds until
advertisement expires
LOCATION: URL for UPnP description for root device
NT: search target
NTS: ssdp:alive
SERVER: OS/version UPnP/1.0 product/version
USN: advertisement UUID
Quanta Confidential
Steps Involved in UPnP Networking
• Discovery (cont.)
– control point to search for devices of interest
on the network.
• M-SEARCH * HTTP/1.1
HOST: 239.255.255.250:1900
MAN: "ssdp:discover"
MX: seconds to delay response
ST: search target
Quanta Confidential
Steps Involved in UPnP Networking
• Discovery (cont.)
– Rsponse
• HTTP/1.1 200 OK
CACHE-CONTROL: max-age = seconds until
advertisement expires
DATE: when response was generated
EXT:
LOCATION: URL for UPnP description for root device
SERVER: OS/version UPnP/1.0 product/version
ST: search target
USN: advertisement UUID
Quanta Confidential
Steps Involved in UPnP Networking
Discovery
Quanta Confidential
Steps Involved in UPnP Networking
• Description
– control point still knows very little about the
device
– must retrieve the device's description from the
URL provided by the device in the discovery
message
– Use XML
Quanta Confidential
Steps Involved in UPnP Networking
• Description (Cont.)
– Retrieve Description
• GET path to description HTTP/1.1
HOST: host for description:port for description
ACCEPT-LANGUAGE: language preferred by control
point
– Response (header)
• HTTP/1.1 200 OK
CONTENT-LANGUAGE: language used in description
CONTENT-LENGTH: Bytes in body
CONTENT-TYPE: text/xml
DATE: when responded
Quanta Confidential
Steps Involved in UPnP Networking
Description
Quanta Confidential
Steps Involved in UPnP Networking
• Control
– Get Service Description( actions, variables )
– Send an action request to a device’s service(SOAP :
Simple Object Access Protocol )
• POST path of control URL HTTP/1.1
HOST: host of control URL:port of control URL
CONTENT-LENGTH: bytes in body
CONTENT-TYPE: text/xml; charset="utf-8"
SOAPACTION: "urn:schemas-upnporg:service:serviceType:v#actionName"
<s:Envelope
xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:actionName xmlns:u="urn:schemas-upnporg:service:serviceType:v">
<argumentName>in arg value</argumentName>
other in args and their values go here, if any
</u:actionName>
</s:Body>
</s:Envelope>
Quanta Confidential
Steps Involved in UPnP Networking
• Control(Cont.)
– The service returns values
• HTTP/1.1 200 OK
CONTENT-LENGTH: bytes in body
CONTENT-TYPE: text/xml; charset="utf-8"
DATE: when response was generated
EXT:
SERVER: OS/version UPnP/1.0 product/version
<s:Envelope
xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<s:Body>
<u:actionNameResponse xmlns:u="urn:schemas-upnporg:service:serviceType:v">
<argumentName>out arg value</argumentName>
other out args and their values go here, if any
</u:actionNameResponse>
</s:Body>
</s:Envelope>
Quanta Confidential
Steps Involved in UPnP Networking
Control
Quanta Confidential
Steps Involved in UPnP Networking
• Eventing
– Subscribe to Event Server
• SUBSCRIBE publisher path HTTP/1.1
HOST: publisher host:publisher port
CALLBACK: <delivery URL>
NT: upnp:event
TIMEOUT: Second-requested subscription duration
– Publisher Response
• HTTP/1.1 200 OK
DATE: when response was generated
SERVER: OS/version UPnP/1.0 product/version
SID: uuid:subscription-UUID
TIMEOUT: Second-actual subscription duration
Quanta Confidential
Steps Involved in UPnP Networking
• Eventing
– When state changed,notify all subscribers by sending
event messages (GENA :General Event Notification
Architecture )
– NOTIFY delivery path HTTP/1.1
HOST: delivery host:delivery port
CONTENT-TYPE: text/xml
CONTENT-LENGTH: Bytes in body
NT: upnp:event
NTS: upnp:propchange
SID: uuid:subscription-UUID
SEQ: event key
<e:propertyset xmlns:e="urn:schemas-upnp-org:event-1-0">
<e:property>
<variableName>new value</variableName>
</e:property>
Other variable names and values (if any) go here.
</e:propertyset>
Quanta Confidential
Steps Involved in UPnP Networking
Eventing
Quanta Confidential
Steps Involved in UPnP Networking
• Presentation
– The control point can retrieve a page from
URL
– Allow users to control device and/or view
device status
Quanta Confidential
Summary
• UPnP is based on existing standards,
making interoperability
• UPnP has huge industry momentum,
assuring success
Quanta Confidential
Samba
Quanta Confidential
Samba 緣由
• 在一般的區域網路中 (LAN) 如果都是 Windows 電腦，那
麼使用『網路上的芳鄰』這個功能，就可以讓不同的
Windows 電腦分享彼此的檔案囉！但萬一這個 LAN 裡面
有個 Linux 主機時，我怎麼讓 Linux 也加入這個 Windows
電腦當中的『網路上的芳鄰』呢？
• 為了解決這樣的的問題，1991年 Andrew Tridgwell 就自
行寫了個 program 去偵測當 DOS 與 DEC 的 Unix 系統在
進行資料分享傳送時所使用到的通訊協定資訊，然後將這
些重要的資訊擷取下來，並且基於上述所找到的通訊協定
而開發出Server Message Block (SMB) 這個檔案系統，
而就是這套 SMB 軟體就能夠讓 Unix 與 DOS 互相的分享
資料！
Quanta Confidential
Samba 緣由
• Samba主要用來溝通 Windows 與 Unix Like 這兩個不同
的作業平台。其整合了NetBIOS與SMB協定,使其運作在
TCP/IP協定上,讓 Windows 電腦可以透過『網路上的芳鄰』
來存取 Linux 主機上面的檔案！
• Samba 支援下列的不同作業系統：AIX, Bull, Debian,
IRIX, LSB, Mandrake, OSF, RedHat, SuSE, HP-UX,
MVS, NOVELL, SINIX, Solaris, VMS…
Quanta Confidential
Samba 功能應用
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5.
Samba是很有用的一個伺服器，可讓您的 Linux 成為：
檔案伺服器 (File Server)，並提供整個 LAN 裡面的
Windows 很簡單的就可以對 Linux 主機進行檔案的存取
動作。
也可以讓 Linux 上面的印表機成為印表機伺服器
(Printer Server) 。
可以提供使用者登入 Samba 主機時的身份認證，以提
供不同身份者的個別資料。
可以進行 Windows 網路上的主機名稱解析 (NetBIOS
name) 。
可以進行裝置的分享 (例如 Zip, CDROM...) 。
Quanta Confidential
Samba 使用的 daemons
1.
2.
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nmbd ：這個 daemon 是用來管理工作群組啦、
NetBIOS name 啦等等的解析。 主要利用 UDP 協定開
啟 port 137, 138 來負責名稱解析的任務。
smbd ：這個 daemon 的主要功能就是用來管理 Samba
主機分享的目錄、檔案與印表機等等。 主要利用可靠的
TCP 協定來傳輸資料，開放的埠口為 139 及 445(不一
定存在) 。
Samba 每次啟動至少都需要有這兩個 daemons，主機
系統就會啟動 137, 138, 139 三個 port ，且同時會有
UDP/TCP 的監聽服務喔！
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Samba 連線模式
1. peer/peer
(Workgroup model)：
2. domain model ：
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Authentication & Authorization
• smbd also handles "share mode" and "user mode"
authentication and authorization.
• You can protect shared file and print services by
requiring passwords.
• In share mode, the simplest and least recommended
scheme, a password can be assigned to a shared
directory or printer (simply called a "share"). This single
password is then given to everyone who is allowed to
use the share.
• With user mode authentication, each user has their own
username and password and the System Administrator
can grant or deny access on an individual basis.
Quanta Confidential
Name resolution
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1.
2.
3.
4.
即『這部 Samba 主機針對 NetBIOS name 的解析方
式』， 主要的解析方式有幾種：
lmhosts：直接以 lmhosts 這個檔案的內容來對照。
WINS：利用一部可管理 Windows 網芳的主控電腦來紀
錄，本 Samba 主機向該部主機 (WINS Server) 要求
NetBIOS 名稱解析結果。
Host：透過 /etc/hosts 或者是 NIS, DNS 等方式來處理
NetBIOS name 的結果。
Broadcast：在區域網路中直接透過 NetBIOS 的廣播功
能處理，亦即是向同一網域主機發出名稱解析的需求。
舉例來說咱們的 Samba 主機為 192.168.1.254/24，則
以 bcast 解析 NetBIOS name 時，我們的伺服器會主動
向 192.168.1.0/24 發送出解析封包的要求。
Quanta Confidential
Browsing
• Each server on a Windows workgroup is required to
announce its presence to the local master browser after
it has registered a NetBIOS name.
• Clients listen for these broadcasts and build up browse
lists.
• Browsing is the process of finding the other computers
and shared resources in the Windows network.
• To browse the resources on a computer, a user must
connect to the specific computer.
Quanta Confidential
Browsing in Windows
Quanta Confidential
Samba 所需套件
• samba：這個套件主要包含了 Samba 的主要 daemon 檔
案 (smbd 及 nmbd)、 Samba 的文件檔 (document)、以
及其他與 Samba 相關的 logrotate 設定檔及開機預設選項
檔案等。
• samba-common：這個套件則主要提供了 Samba 的主要
設定檔 (smb.conf) 、 smb.conf 語法檢驗的測試程式
(testparm)等。
• samba-client：這個套件則提供了當 Linux 做為 Samba
Client 端時，所需要的工具指令，例如掛載 Samba 檔案
格式的執行檔 smbmount 等。
Quanta Confidential
Samba 套件結構(1)
• /etc/samba/smb.conf：smb.conf 是 Samba 的主要設定
檔名，這個檔案主要在設定工作群組、 NetBIOS 名稱以
及分享的目錄等相關設定。
• /etc/samba/lmhosts：這個檔案的主要目的在對應
NetBIOS name 與該主機名稱的 IP 。
• /etc/samba/smbpasswd：這個檔案預設並不存在啦！他
是 SAMBA 預設的使用者密碼對應表。
• /etc/samba/smbusers：由於 Windows 與 Unix-like 在管
理員與訪客的帳號名稱不一致，分別為 administrator 及
root， 為了對應這兩者之間的帳號關係，可以使用這個檔
案來設定。不過這個檔案的使用必須要經由 smb.conf 內
的『 username map 』設定項目來啟動才行。
Quanta Confidential
Samba 套件結構(2)
• testparm：這個指令主要在檢驗 samba 設定檔 smb.conf
的語法正確與否。
• smbstatus：列出目前的 SMB server 的狀態。
• smbpasswd：如果您的Samba設定的較為嚴格，需要規
定使用者的帳號與密碼，那麼那個密碼檔案的建立就需要
使用 smbpasswd 來建置才可以。
• smbclient：當你的 Linux 主機想要藉由『網路上的芳鄰』
的功能來查看別台電腦所分享出來的目錄與裝置時，就可
以使用 smbclient 來查看啦！這個指令也可以使用在自己
的 Samba 主機上面，用來查看是否設定成功！
Quanta Confidential
Samba 套件結構(3)
• smbmount：在 Linux 上面，我們可以透過 smbmount 來
將遠端主機分享的檔案與目錄掛載到自己的 Linux 主機上
面！不過，我們也可以直接使用 mount 這個指令來進行
同樣的功能。
• nmblookup：有點類似 nslookup ，重點在查出 NetBIOS
name 。
• smbtree：像 Windows 系統的網路上的芳鄰顯示的結果，
可以顯示類似『靠近我的電腦』之類的資料， 能夠查到
工作群組與電腦名稱的樹狀目錄分佈圖。
• usr/share/doc/samba-<版本>：這個目錄包含了 Samba
的所有相關的技術手冊！也就是說，當您安裝好 Samba
之後，您的系統裡面就已經含有相當豐富而完整的
Samba 使用手冊。
Quanta Confidential
SMB Protocol
• Richard Sharpe of the Samba team defines SMB as a
request-response protocol.
Quanta Confidential
SMB variations
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A Simple SMB Connection
•
The client and server must complete three
steps to establish a connection to a resource:
1.
2.
3.
Establish a NetBIOS session.
Negotiate the protocol variant.
Set session parameters, and make a tree connection
to a resource.
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1. Establishing a NetBIOS Session
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2. Negotiating the Protocol Variant
(Request)
• The command in the
message is SMBnegprot,
a request to negotiate a
protocol variant that will
be used for the entire
session.
• Note that the client sends
to the server a list of all
the variants that it can
speak.
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2. Negotiating the Protocol Variant
(Response)
• The server responds to the
SMBnegprot request with an
index (with counting starting
at 0) into the list of variants
that the client offered, or with
the value 0xFF if none of the
protocol variants is
acceptable.
• In this example, the server
responds with the value 5,
which indicates that the NT
LM 0.12 dialect will be used
for the remainder of the
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session.
3. Set Session and Login Parameters
• Request
• Response
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Samba 設定概念
1. 在 smb.conf 當中設定好工作群組(workgroup)、
NetBIOS 主機名、密碼使用狀態等與主機相關的資訊。
2. 在 smb.conf 內設定好預計要分享的目錄或裝置以及可供
使用的使用者資料。
3. 根據步驟 2 的設定，在 Linux 檔案系統當中建立好分享
出去的檔案或裝置的使用權限。
4. 根據步驟 2 的設定，以 smbpasswd 建立起使用者的帳
號及密碼。
5. 啟動 Samba 的 smbd, nmbd 服務，Samba 功能即開始
運轉囉！
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設定 lmhosts 檔案內容 (optional)
• NetBIOS 名稱可以由廣播的方式自動取得，而 NetBIOS
也可以透過區域網路內經由一部主控電腦來管理， 此外，
你也可以利用自己主機當中的 lmhosts 這個設定檔來進行
NetBIOS 與 IP 的對應， 讓 NetBIOS 與 TCP/IP 可以對應
上關係！
• 一般來說，這個檔案是可以不必設定的，因為可以經由廣
播的方式取得對應！不過，某些時刻確實可以設定一下，
免除一些額外的搜尋時間。
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Smb.conf
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從Windows掛載Samba伺服器的檔案系統
• 在Windows上開檔案總管，選擇”工具”，選擇”連線到網路
磁碟機”後，可以選擇要連接的磁碟機名稱(圖為G: 磁碟)，選
擇資料夾的名稱。此資料夾就是Samba 伺服器上可以連接的服
務名稱。(圖為rh90-srv 的伺服器主機，和homes 的服務，
homes 的服務是連線到在Samba 主機上該使用者的根目錄)
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從Windows掛載Samba伺服器的檔案系統
• 此時可以選擇不同的使用者來
登入(預設登入到Samba伺服器
的使用者和他的密碼是和登入
到Windows 主機的使用者一模
一樣的)。
• 成功登入後就可以使用剛
剛設定的G: 磁碟機。
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從Windows主機上使用印表機
• 其實當Samba伺服器正常啟動印表機的服務後，在
Windows用戶端就好像在網路上有一台列印伺服器一樣。
此時在用戶端需要的是一個正常可以登入的帳號來連接到
Samba主機。
• Windows印表機是假設在PC上登入的使用者在Samba主
機上有登入和使用的權限。而且在Windows和Samba主機
這個使用者有相同的名字(user name)和密碼(pasword)。
如果使用者名字和密碼不一致，那印表機的功能就不能自
動登入使用。
• 如果在Windows上印表機的驅動程式還沒有安裝時，這個
使用者必須有adminstrator的權限，才能在Windows用戶
端安裝所需要的驅動程式。
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Windows主機上印表機的增設
• 從Windows主機上選擇”設定”，”印表機”後，點選”
新增印表機”，選擇新增印表機為網路印表機，鍵入
Samba伺服器的名稱和印表機的名稱， 即可完成設定。
• 設定完成後，這個Samba主機上的印表機其實和Windows
用戶主機本地的印表機或是其他WINDOS主機上的網路印
表機已經完全一模一樣,可以很方便的使用。
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Windows主機上印表機的增設
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Windows主機上印表機的增設
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Reference
•
•
•
•
•
http://us1.samba.org/samba/docs/using_samba/ch01.html
http://us3.samba.org/samba/docs/SambaIntro.html
http://linux.vbird.org/linux_server/0370samba.php#server_pkg
http://en.wikipedia.org/wiki/Samba_%28software%29
http://www.linux.ie/articles/tutorials/samba.php
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Print Server
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Overview
PC
PC
PC
NAS
Gateway / Hub / Switch
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Printer
Installation
Internet
Driver CD
Driver
PC
PC
PPD file
CUPS
PC
NAS
Gateway / Hub / Switch
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Printer
Find PPD Files
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Find PPD Files
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Printing
PC
PC
CUPS
PC
Samba
NAS
Gateway / Hub / Switch
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Printer
DDNS
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Host Names and DNS (Domain
Name System)
• Every host can take a host name
• Every host is member of a domain
– Group of computers belonging to same organization and
has part of their IP addresses in common
– Domain name usually associated with company or other
type of organization
• Fully qualified host name: local host name
plus domain name
• Domain names must be registered with an
Internet naming authority that works on
behalf of ICANN
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DNS (Domain Name System)
• Hierarchical method of associating domain
names with IP addresses
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DNS (Domain Name System)
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DDNS (Dynamic DNS)
• DNS is reliable as long as host’s address is
static
– Many Internet users subscribe to type of Internet
service in which IP address changes periodically
• In DDNS, service provider runs program on
user’s computer that notifies service provider
when IP address changes
– DNS record update effective throughout Internet
in minutes
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DDNS (Dynamic DNS)
• DDNS Server
– Free service
– DynDNS.org, www.NO-IP.com …
• DDNS Client
– Client is a Gateway, Client behind a Gateway
– Regular Check IP Address
– Update
• Gateway
– NAT
– Port forwarding
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DDNS Registration
Registration
Acount ID
Password
Hostname1
Hostname2
Hostname3
internet
Broadband
Router
Internal
Client
Home Storage
with DDNS Client
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DDNS Update
internet
Broadband
Router
Internal
Acount ID
Client
Password
HTTP
:
checkip.dyndns.org
HTTP Response
Please Update My IP
is my Internet
Hostname1:
X.X.X.XIP Address?
Your Internet IP is What
X.X.X.X
Home Storage
Hostname2 : X.X.X.X
with DDNS Client
Hostname3 : X.X.X.X
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DDNS Query
Port forwarding
Router forward
traffic to Storage
DNS
DNSrequest
response
Where
is
Hostname2?
Hostname2 is X.X.X.X
internet
Broadband
Router
Internal
Client
External
Client
Home Storage
with DDNS Client
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Backup
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Backup
• Backup type
– USB to NAS
– PC to NAS
– NAS to NAS
– NAS to USB Drive
– NAS to PC
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Backup
• USB to NAS
– One click button
– Backup all data to a folder
– Backup all data as a ZIP file
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Backup
• PC to NAS
– A separate backup software must be installed
on PC
– Backup a selected folder as a ZIP file
– Backup a selected folder
– Can be restored back
– Manually backup
– schedule backup
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Backup
• NAS to NAS
– Backup a selected folder
– Backup NAS configuration
• User, Group, Shared folder, Network setting
– Manually backup
– schedule backup
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Backup
• NAS to USB Drive
– Backup a selected folder
– Backup NAS configuration
• User, Group, Shared folder, Network setting
– Manually backup
– schedule backup
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Backup
• NAS to PC
– A separate backup software must be installed
on PC
– Backup a selected folder as a ZIP file
– Can be restored back
– Backup NAS configuration
• User, Group, Shared folder, Network setting
– Manually backup
– schedule backup
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Thank you!
Discussion
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