Those who use Zengaku Computer System, please read notification (within the university network only) carefully as follows.

* On emergency responses regarding leakage of Unified Authentication System passwords

Maintenance on campus wireless networks is scheduled as follows:
Date: Tuesday, March 19, 2019 11:25 AM – 12:15 PM
Summary: Maintenance on campus wireless networks
Impact: During this work, access to the following networks will be interrupted:

On-Campus Wi-Fi System (utwlan-w)
On-Campus Wi-Fi System via 802.1x authentication (utwlan-x)
International Academic Roaming Service “eduroam”
Guest Network

ACCC will be performing maintenance on eduroam as follows:

Date: Monday, March 18, 2019 11:25 AM – 12:15 PM
Summary: Maintenance on International Academic Roaming Service “eduroam.”
Impact: During this work, access to the wireless SSID eduroam will be interrupted for about 30 minutes.

We apologize for such short notice. Your understanding and cooperation would be highly appreciated.

ACCC will be performing maintenance on Guest Network (welcome-ut) as follows:

Date: Monday, March 11, 2019 11:25 am – 12:15 pm
Description: Maintenance on Guest Network (welcome-ut)
Impact: During this work, access to the network will be tenporarily interrupted.

We apologize for such short notice. Your cooperation would be highly appreciated.

ACCC will be performing maintenance on the backbone network equipment as follows:

Date: Monday, Feb. 18, 2019 12:00 p.m. – 12:20 p.m.
Summary: upgrade of equipment for external communication
Impact: External communication will be suspended from all campus. On Tokyo Campus, even communication to Tsukuba Campus will be suspended.

Date: Monday, Feb. 18, 2019 11:30 a.m. – 12:30 p.m.
Summary: upgrade of equipment for connecting the campus network to remote locations
Impact. Access to the campus network will be suspended from the affiliated schools (excluding the elementary school) and from the remote centers.

Date: Monday, Feb. 18, 2019 15:00 p.m. – 17:00 p.m.
Summary: upgrade of core switches
Impact: On all campus, there will be up to five minutes of campus network downtime four times.

We apologize for any inconvenience this work will cause. Thank you for your understanding and cooperation.

ACCC has started offering TrendMicro Mobile Security (TMMS), an antivirus application for Android and iOS, as a test run.

For more information, see below:

(To login, use your Unified Authentication ID (UTID-13) from the campus network.)

 Android : “TrendMicro Mobile Security (TMMS) Test Run”.
 iOS        : “TrendMicro Mobile Security (TMMS) for Enterprise Agent Test Run”.

Trend Micro Security for Mac (TMSM) now supports Mac OS Ver. 10.14 Mojave
with Agent Ver. 3.0.3067.

If you are using TMSM, you can update the agent to the newest version by
re-installing the software.

For instructions on how to uninstall TMSM, see “「トレンドマイクロ製品のアンインストールについてのページ」”.

After the agent is updated to the latest version, the status will be
displayed as follows:

NOTE: Be sure to update your TMSM to the latest version before updating your
Mac OS to Mojave. Update to Mojave with an old version of TMSM agent can
cause your Mac not to boot up.

FYI: TMSM Critical Pach(ビルド 3067) について (Trend Micro website)

ACCC will be changing the security policies on utwlan-x, one of the campus wireless networks on Monday, January 22, 2018 between 11:25 A.M. and 12:15 P.M.
After the change, communications activities over the network will be restricted as follows:

1. Incoming communications from outside the network will be blocked.
2. Outgoing communications from the network will be permitted in principle. However, the following types of communications will be blocked:
– P2P file sharing
– Attacks exploiting vulnerabilities
– Spyware and malware
– DNS queries searching for website names malware use
– Transmission and reception of files containing computer viruses
– Access to websites doing activities such as malware distribution, remote control and phishing.
These restrictions will be implemented in accordance with the standard configuration set by the manufacturer of the campus firewall. After confirming that the change has caused no problems, ACCC will accordingly change the security policies on other campus wireless networks including utwlan-w.

During the change work, communications may be cut off on utwlan-x. If that happens, try accessing after a while

Some outside organization have recently pointed out many incidents occurring on campus related to access to certain inappropriate websites, so ACCC has decided to block access to them from the On-Campus Wi-Fi System during the university winter closure.

Date: December 28, 2017 2:00 P.M. – January 4, 2018 10:00 A.M.
Summary: Blocking access to inappropriate websites from the following wireless networks:
On-Campus Wi-Fi System (utwlan-w)
On-Campus Wi-Fi System via 802.1x authentication (utwlan-x)

To see the list of the blocked websites, access the following page with your UTID-13:
https://www.cc.tsukuba.ac.jp/network/access/member_only/IPaddress.htm

Wi-Fi Protected Access II (WPA2) is a standard for encrypted communications on wireless LAN (Wi-Fi) networks, and it has been announced that some vulnerabilities are discovered in WPA2, such as encryption key theft. If a third party exploits the vulnerabilities within the range of a wireless network, your communications on the network can be intercepted. To defend against these vulnerabilities, you need to install updates to affected products.

Individual users should take the following precautions:
– Install updates to fix the vulnerabilities.
Microsoft released security updates in October, 2017.
【Microsoft Corporation Information for VU#228519】
https://www.kb.cert.org/vuls/id/CHEU-AQNMYP

If new security updates are not available for your OS, consider doing the following:

– Avoid sending important information from a website whose URL starts with “http”.
– Use a VPN.
– Use a wired network.

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【IPA Information】
https://www.ipa.go.jp/security/ciadr/vul/20171017_WPA2.html