Troubleshooting and help - 版の履歴

2026年3月24日 (火) 06:27にShitami.junichiroによる

2026-03-24T06:27:19Z

← 古い版		2026年3月24日 (火) 06:27時点における版
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	<!--		<!--
	Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.		Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.
	~~-->~~

	== Certificate Authentication ==		== Certificate Authentication ==
	=== Login fails for certificate-authenticated services (e.g. Meeting Documents) ===		=== Login fails for certificate-authenticated services (e.g. Meeting Documents) ===
	If you reissue a certificate for your School of Science account, the old certificate will be invalidated (this is a mechanism to prevent authentication with a certificate that was accidentally leaked). To make sure you have the latest certificate installed, delete the old certificate once and install the newly downloaded certificate and try again.		If you reissue a certificate for your School of Science account, the old certificate will be invalidated (this is a mechanism to prevent authentication with a certificate that was accidentally leaked). To make sure you have the latest certificate installed, delete the old certificate once and install the newly downloaded certificate and try again.
			-->
	== Other services ==		== Other services ==
	=== External connection ===		=== External connection ===

2023年10月20日 (金) 04:22にShitami.junichiroによる

2023-10-20T04:22:15Z

← 古い版		2023年10月20日 (金) 04:22時点における版
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	When making a request for investigation of network-related problems, provide the following information. Detailed information (user, MAC address, etc.) often helps to identify the cause of failure using log data stored on network devices. Your cooperation is appreciated.		When making a request for investigation of network-related problems, provide the following information. Detailed information (user, MAC address, etc.) often helps to identify the cause of failure using log data stored on network devices. Your cooperation is appreciated.

	Date/time		(General requirements)
	Place (room)		1. Date and time:
	~~Information wall socket in use~~ (~~for~~ the wired LAN)		2. Place (room):
	~~Terminal user (especially for Wi~~-~~Fi)~~		3. Network connection type (A, B, or C below):
	MAC address		4. Symptoms:
	~~Description~~ of the ~~problem~~		5. Range of the problem (specific terminal or room, etc.):
	~~Measure attempted to~~ address the ~~problem~~		6. What you tried to check:

			(A: For wired LAN connection)
			A-1. Information outlet used:
			A-2. MAC address of the wired LAN:

			(B: For wireless LAN connection) B-1.
			B-1. type of wireless LAN (UTokyo-WiFi (0000UTokyo), eduroam):
			B-2. Account name of the wireless LAN:
			B-3. MAC address of the wireless LAN:

			(C: For VPN connection)
			C-1. VPN type (L2TP, SoftEther VPN Client):
			C-2. VPN account name (common ID):
			C-3. IP address used for connection:

	[[Category:Information Technology Team]]		[[Category:Information Technology Team]]

2023年10月20日 (金) 02:42にShitami.junichiroによる

2023-10-20T02:42:32Z

← 古い版		2023年10月20日 (金) 02:42時点における版
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	The School of Science provides a [[VPN connection service]] for external access (e.g. from home). The [[VPN connection service]] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.		The School of Science provides a [[VPN connection service]] for external access (e.g. from home). The [[VPN connection service]] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.

	== I want to open my server to the public ==		=== I want to open my server to the public ===
	In order to prevent security incidents, the default setting of the School of Science does not allow off-campus access to the on-campus servers. If you wish to open your server to the public, please apply to change the setting through the network administrator of your department.		In order to prevent security incidents, the default setting of the School of Science does not allow off-campus access to the on-campus servers. If you wish to open your server to the public, please apply to change the setting through the network administrator of your department.

2023年10月20日 (金) 02:41にShitami.junichiroによる

2023-10-20T02:41:34Z

← 古い版		2023年10月20日 (金) 02:41時点における版
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	=== External connection ===		=== External connection ===
	The School of Science provides a [[VPN connection service]] for external access (e.g. from home). The [[VPN connection service]] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.		The School of Science provides a [[VPN connection service]] for external access (e.g. from home). The [[VPN connection service]] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.

			== I want to open my server to the public ==
			In order to prevent security incidents, the default setting of the School of Science does not allow off-campus access to the on-campus servers. If you wish to open your server to the public, please apply to change the setting through the network administrator of your department.

	=== E-mail address ===		=== E-mail address ===
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	=== University-wide administrative systems ===		=== University-wide administrative systems ===
	University-wide administrative systems are described on [http://www.ut-portal.u-tokyo.ac.jp/gakunai/ the University’s portal] (Japanese). See the description of each system given by the related staff in the Department/Facility.		University-wide administrative systems are described on [http://www.ut-portal.u-tokyo.ac.jp/gakunai/ the University’s portal] (Japanese). See the description of each system given by the related staff in the Department/Facility.

			=== University-wide services ===
			The utelecon website provides information about university-wide services and includes a support desk.

			* [https://utelecon.adm.u-tokyo.ac.jp/en/ utelecon]

	== Contact ==		== Contact ==

2023年10月20日 (金) 02:36にShitami.junichiroによる

2023-10-20T02:36:03Z

← 古い版		2023年10月20日 (金) 02:36時点における版
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	Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.		Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.
	-->		-->

			== Certificate Authentication ==
			=== Login fails for certificate-authenticated services (e.g. Meeting Documents) ===
			If you reissue a certificate for your School of Science account, the old certificate will be invalidated (this is a mechanism to prevent authentication with a certificate that was accidentally leaked). To make sure you have the latest certificate installed, delete the old certificate once and install the newly downloaded certificate and try again.

	== Other services ==		== Other services ==
	=== External connection ===		=== External connection ===

2023年10月17日 (火) 08:11にShitami.junichiroによる

2023-10-17T08:11:48Z

← 古い版		2023年10月17日 (火) 08:11時点における版
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	== Wi-Fi network ==		== Wi-Fi network ==
	=== I do not know how to use the Wi-Fi network. ===		=== I do not know how to use the Wi-Fi network. ===
	~~See~~ the page [~~[Wi~~-~~Fi connection service~~]].		The University of Tokyo has a wireless network, UTokyo WiFi (0000UTokyo), available throughout the campus. Please refer to the following page for details.

			* [https://utelecon.adm.u-tokyo.ac.jp/en/utokyo_wifi/ UTokyo WiFi] (0000UTokyo)

	=== No access point has been installed in my room. ===		=== No access point has been installed in my room. ===

2023年3月14日 (火) 06:20にShitami.junichiroによる

2023-03-14T06:20:16Z

← 古い版		2023年3月14日 (火) 06:20時点における版
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	See the page [[Wi-Fi connection service]].		See the page [[Wi-Fi connection service]].

	=== No access point has been installed in ~~the~~ room. ===		=== No access point has been installed in my room. ===

			Wi-Fi access points are installed at appropriate intervals throughout the university to ensure that the signal reaches the entire building. You can use Wi-Fi even if access points are not installed in the same room.
			<!--
	Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.		Wi-Fi access points are spaced at proper intervals so that Wi-Fi covers all School of Science buildings. Wi-Fi access is available, even if no access point has been installed in the room. If the radio field intensity is extremely low due to access point locations (and if there is a user need for Wi-Fi access), a slight adjustment of access point locations may be considered. However, the addition of access points is difficult; since the narrow bandwidth of the 2.4 GHz band is shared, an excessively increased number of access points may result in radio interference, further degrading Wi-Fi performance.
			-->
	== Other services ==		== Other services ==
	=== External connection ===		=== External connection ===

2017年6月8日 (木) 01:00にShitami.junichiroによる

2017-06-08T01:00:05Z

← 古い版		2017年6月8日 (木) 01:00時点における版
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	=== An individual not belonging to the School of Science uses a room in the School. ===		=== An individual not belonging to the School of Science uses a room in the School. ===
	Security policies and incident response plans are in place on a Department/Facility basis. The University of Tokyo assumes that each individual uses the network in his/her Department/Facility. ~~UTnet~~ provides an inter-building VLAN service that allows individuals in a School of Science building to access networks used in other buildings. Application for the service should be made on ~~UTnet~~ by the ~~UTnet~~ staff in each Department/Facility.		Security policies and incident response plans are in place on a Department/Facility basis. The University of Tokyo assumes that each individual uses the network in his/her Department/Facility. UTNET provides an inter-building VLAN service that allows individuals in a School of Science building to access networks used in other buildings. Application for the service should be made on UTNET by the UTNET staff in each Department/Facility.

	== Wi-Fi network ==		== Wi-Fi network ==

2017年4月2日 (日) 01:16にShitami.junichiroによる

2017-04-02T01:16:25Z

← 古い版		2017年4月2日 (日) 01:16時点における版
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	== Other services ==		== Other services ==
	=== External connection ===		=== External connection ===
	The School of Science provides a [[~~VPN connection service]] and a [[SSL-~~VPN connection service]] for external access (e.g. from home). The [[~~SSL-~~VPN connection service]~~] is available to browse websites accessible only from within the School of Science network. The [[VPN connection service~~] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.		The School of Science provides a [[VPN connection service]] for external access (e.g. from home). The [[VPN connection service]] is used to access internal servers by connecting to Department/Facility (or laboratory) subnets.

	=== E-mail address ===		=== E-mail address ===

2016年10月14日 (金) 07:24にShitami.junichiroによる

2016-10-14T07:24:40Z

← 古い版		2016年10月14日 (金) 07:24時点における版
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	== Wi-Fi network ==		== Wi-Fi network ==
	=== I do not know how to use the Wi-Fi network. ===		=== I do not know how to use the Wi-Fi network. ===
	See the page [[~~Guide to using~~ Wi-Fi]].		See the page [[Wi-Fi connection service]].

	=== No access point has been installed in the room. ===		=== No access point has been installed in the room. ===