Institute of Management and Information Technologies

New

1Abolished The File Management System.Downloading ticket system is abolished.

2NewThe File Separation System.

• ■ When sending from Active!mail (@chiba-u.jp), the system separate large volume files (10MB - about 50MB) and save them automatically.
  (Transmission impossible when the total of files attached to one mail exceeds　50MB)


• ■ The system processes Insert the download URL into the text. Send downloading password automatically. Receiver Access to the URL, download files by using the password. Files can be downloaded for two weeks. (Deleted after that)


• ■The above process is NOT carried out when sending from other mail systems.

3ChangedSending size limit（from @chiba-u.jp）

about 10MB ＝＞ about 50MB

※Attached files are separated automatically.
※Transmission impossible when one mail with no attached file exceeds 20MB.

4ChangedReceiving size limit（from other mail server to @chiba-u.jp）

about 10MB ＝＞ about 20MB

※Attached files are NOT separated.

5ChangedMail box（Shares capacity with “win_home”）

2GB ＝＞ 4GB

6ChangedTransmission regulationTransmission interval per mail address is limited.

Unchanged

1Mails on mail server
Mails, address book, user profile and forward setting are migrated, you can use as it is.

2Webmail（Active!mail） We use the same product.
The URL is also the same.

3Name of mail server（FQDN）
The names of incoming mail server and outgoing mail server set by mail software are not changed. There is no change in communication method.

4Spam (junk mail) block on mail serverThe setting information of black list and white list will be migrated.

5Attachment block of incoming mail on mail server Executable file will be quarantined.
In this case, there will be a notice from the mail system next day.

Notes

Those who logged in with mixed uppercase and lowercase letters in the past, webmail may temporarily hide the address book and user profile.

Not changed.

New

1Countermeasures against Information Leakage The File Separation System, mentioned 1-2, does not send attached files directory.
Even if you send the file erroneously, you can stop downloading by contacting IMIT. In addition, it is possible to investigate the download history.

2Proxy

Communication from campus to external website will be via proxy server.　
Setting on the user side is unnecessary.
The proxy acquires and stores all Web communication records. Also, if proxy decides that it is an invalid URL, it blocks that communication.
If blocked, the following screen will be displayed.

3Web sandbox
In the Web sandbox, the file and the URL of Web communication are verified on the test PC.

4Mail sandbox
In the mail sandbox, attached file and the URL in text are verified on the test PC. Therefore, a slight communication delay may occur.

5DNS If decided as an illegal URL in DNS, the DNS query is refused.

Notes

Web communication to the outside becomes via the proxy, therefore the IP address is changed. If the other side is restricting the IP addresses in web communication, please contact us.

Continued

1 On the campus network
- Virus inspection
- Blocking specific prohibited communication (p2p, Boenet etc.)

2 For admin PC users
- Prohibiting internet access from FAT

Computers for class use.

1Main flame CPU core2 Duo 2.93GHz memory 4GB , SSD64GB
↓
CPU i5-6500T 2.5GHz memory 8GB , SSD256GB

2Monitor 17inch  4:3
↓
21.5inch  16:9

3OS Windows 7, CentOS 5
↓
Windows 10, CentOS 7

4Office（Windows） Office2010
↓
Office2016

• 1”Password Issuing System” screen has changed.
  （https://culdweb.chiba-u.jp/）


• 2”User profile” shows your registered profile.


• 3”Password reminder” makes you possible to reset password by yourself.

Abolished.

Informed to users individually.