Outlook 帳號只傳不收

outlook有時候郵件帳號只想用來寄件不想它也收信，一直找不到比較好的方式，原本是將帳號的密碼拿掉，讓它產生錯誤而無法收信，這個方式因為會產生錯誤，感覺很不好用。後來有找到一個方式，Outlook有一個傳送接收群組的功能，只要將不要接收的帳號刪除即可。

方式如下...

１.開啟Outlook－＞點選傳送 ／接收－＞點選傳送／接收群組－＞點選傳送／接收群組設定

２.選擇要設定的群組，我是建立一個新的群組，停用原來的帳戶(只要將框起的地方打v拿掉)。

3.將不要接收或傳送的帳的v拿掉即可

Synfig Studio 2D向量動畫開發工具

軟體名稱：Synfig Studio

軟體類型：動畫工具

軟體公司：Synfig

下載位置：http://www.synfig.org/cms/en/download/stable

 

Synfig Studio 是一個2D向量動畫開發工具，使用高範圍成相技術，在少人力的情況也可以做出不錯的動畫，

畫面上感覺有點像Flash，有動畫開發需求的可以試試看。

 

什麼是 multicast? 如何工作? (解決頻寛問題)

轉載網站 http://www.dvrsecurityforum.com/thread-748.html

Chapter1: What is multicast?
Multicast is a kind of network communication type. There are two kinds of communication type including “Unicast” and “Multicast”. Each of them works differently and is used in different applications.We will use an IP camera streaming to multiple PC as an example to explain Unicast and Multicast.
1-1. Uni-cast:
Unicast is a network communication between a single sender (IP camera, video server) and a single receiver (Client PC or NVR) over a network. With unicast, the IP camera has to send an individual streaming for each client wish to see the images.

With unicast, the more the client number is, the greater the network bandwidth required and the greater loading of the IP camera (sender).
1-2. Multicast:
Multicast is a network communication between a single sender (IP camera, video server) and multiple receiver (Client PC or NVR) over a network. With multicast, the IP camera can send just one streaming and each client can receive the streaming.
With multicast, even with the client number increasing, the network bandwidth is still the same and the same loading of the IP camera (sender)
NOTE: The streaming transmitted by Multicast might be unstable and cause the images to either “Drop frame” or “Generate mosaic” when network is busy. This is because Multicast is using UDP protocol to transmit the data and the UDP protocol might cause some network package to loss during transmission.
2-1-1 Multicast with IGMP
Multicast with IGMP can send streaming only to PC wanting to receive it.

2-1-2 Multicast without IGMP
Multicast without IGMP send streaming to every PC on the network.
If any of the sender (IP camera) and the related network switch/router doesn’t support IGMP, the multicast with IGMP will not work.
NOTE: Multicast without IGMP is very likely to decrease your network performance and cause a lot of trouble. Please don’t use it.

Chapter2: How to make multicast work?
Because the multicast with IGMP works best, we will describe how to deploy a system supporting multicast with IGMP as below. There are 4 setups deploy it.
1st: Select the network switch/router.
2nd: Configure the network switch/router.
3rd: Configure the IP camera / video server.
4th: Configure the software
2-1 Select the network switch/router
Each of the network switches/routers in this system should support IGMP / Multicast routing. Otherwise the multicast will not work. Please refer to the page below.

2-1-1 If the switch doesn’t support IGMP
The switch will send stream to every device connected to it.

2-1-2 If the router doesn’t support Multicast Routing
The router will block the stream if it doesn’t support Multicast Routing.

2-2 Configure each network switch/router
There are two items much be set in the network switch /router. Because the configuration procedure of switch and router differs, please see the key items to setup and refer to switch / router’s manual for details.
2-2-1 For Switch
1. The “IGMP snooping” must be “Enabled”
2. The “IGMP Query” must be “Enabled”
2-2-2 For Router
1. The “Multicast Routing” must be “Enabled”
2-3 Connect and Setup the IP camera/video server
Please follow the procedure below to connect and setup the IP camera.
2-3-1 Connect the IP camera/video server via WAN port
2-3-2 Set the WAN port streaming type to “Multicast”
Please follow the IP camera/video server’s operation manual to login the IP camera /video server’s web-configurator. Then go to video setting and set the streaming type to “Multicast”.

2-3-3 Set the IGMP to “Enabled”

2-3-4 Set the “Multicast IP”
This setting is subject to your network design. Please consult your MIS. The default multicast IP is 228.5.6.1

2-4 Setup the software
For client to view the multicast images, below is the software available for the multicast.

Please follow the software manual for how to configure them.
Chapter3: Glossary
3-1. IGMP:
IGMP (Internet Group Management Protocol) is the standard for IP multicsting in the internet. It’s used to establish host memberships in particular multicast groups on a single network. The mechanism of the protocol allow a host to inform its local router, using Host Membership Reports, that it wants to receive messages addressed to a specific multicast group.

【掃毒】免安裝的免費病毒掃描軟體

以目前的防毒軟體

 

推薦一個免費病毒掃描軟體，由於電腦大多只裝一個防毒軟體，但是目前的病毒不是一個防毒軟就可以防止的，所以還是會用一些免費的來掃一掃，讓內建的防毒軟體無法掃除的病毒，試試看可不可掃除，試用之後感覺還满不錯的，由於是免安裝的所和巳安裝的防毒軟體，不會互相衝突。

軟體名稱：MWav

軟體類型：防毒軟體

軟體公司：美商微界科技(MicroWorld)

下載位置：http://www.duckysoft.com/escan/Mwav.aspx

 

到下載位置的網頁 ，下載MWav(12.0.8)的程式。

執行下載的檔案MWav.exe

程式執行完成之後，按下掃描並清除按鈕，就會開始掃毒了。