Remote Access

  1. Remarks
  2. Using Windows Desktop on the Zengaku Computer System
    1. Table of connection methods
    2. On Web browser (HTML5)
    3. With VMware Horizon Client
  3. Using Linux Desktop on the Zengaku Computer System
    1. With VNC Viewer
  4. Using UNIX shell on the Zengaku Computer System (SSH Access)

1. Remarks

  • About software
    Depending on the license, available software may be different from satellite terminals.See Software Information for datails.
  • Old client may not work
    From Mac OS please use connection on Web browser or something.
  • Automatical log-out after 2 hours
    In order to avoid occupation by a small number of users, for Windows desktop and Linux desktop, it automatically signs out / logs out after 2 hours from the time connection started. As it compulsorily signs out / logs out even during operation, please keep it in mind.
  • Regular restart of remote desktop servers
    In order to operate the system stably, the servers for using the Windows desktop are regularly restarted. Restarts occur every day at 6:00 and 6:30, with staggered timing for each server. If the user is signed in at this point, it will not be restarted. Also, because the restart timing is different for each server, the user is not affected by the restart even when the user newly logs in.
  • Regarding being judged as being in another country even though you are in Japan
    The database that manages the relationship between IP addresses and countries used by the firewall installed at the University of Tsukuba is used to determine whether your connection is to Japan or not.
    When the organization to which the IP address is assigned changes, this database is also updated, but it may not be reflected immediately. As a result, judgments may be incorrect.
    The University of Tsukuba is unable to correct this database. We appreciate your understanding and cooperation.

2. Using Windows Desktop on the Zengaku Computer System

2-1. Table of connection methods

Connection MethodHTML5VMware Horizon Client
Client EnvironmentWindows, Mac, Linux, iOS, Android
Required ToolWeb browserDownload VMware Horizon Client from the VMware site
Connecting to ServerAccess to the URLAccess to the URL with Web browser, or launch VMware Horizon Client and enter the server name directly
User NameNot to include @u or later
Copy & paste between local ⟷ remoteThe menu appears by clicking on the center left tabPossible
File transfer between local ⟷ remoteThe menu appears by clicking on the center left tabPossible if you allow access in the settings in advance
Printing from a local printerPossiblePossible
Remarks* The Windows store also has VMware Horizon Client, but the Windows store version seems to have limited functions available. For example, printing from a local printer is not available with the Windows store version.

2-2. On Web browser (HTML5)


  1. Access the following URL:

    Click “OK” when the following page appears.

    * Please refer to the this Web site for supported browsers.

  2. Input your username (ユーザー名) and password (パスワード) and click on the “Log-on (ログオン)” button.
    Rmote desktop with browser - login
    For the username (ユーザー名) input like “s1234567” or “family.given.xx”. It is not necessary to include “” or “”. For the password (パスワード), input your password for Unified Authentication System.
  3. As an icon “Remote Desktop Service (リモートデスクトップサービス)” or “WEB Print (WEBプリント)” will appear, click on “Remote Desktop Service (リモートデスクトップサービス)”. The image below is loading. Click on the “Remote Desktop Service” icon after it turns dark green.
    Rmote desktop with browser - View
  4. A client selection dialog may appear. Select “HTML5” and click “OK.
  5. Connection will establish.
  6. If you click on the “Start” button (the button with the Windows logo), then the screen will become like the following. To sign out, click on the part in the upper right where the user name is displayed and select “Sign out (サインアウト)”.
    Windows sign out
  7. Finally, click on the following area to log out.Windows sign out

[Copy & Paste]

You can copy and paste without any special settings.

[File Transfer]

  • If you want to transfer files between the local client and the remote desktop after connecting on the browser, click on the center left tab and click on the second button from the left in the upper part inside the tab to open the “Transfer Files (ファイル転送)” panel.
    File Transfer
  • Uploading from the local client to the remote desktop:
    1. Select the “Upload (アップロード)” tab in the “Transfer Files (ファイル転送)” panel, and drag & drop (or select by clicking on the “Choose Files (ファイルの選択)” button) the local file.
    2. After uploading, the file will be saved in the “Documents (ドキュメント)” folder. Launch Windows Explorer on the remote desktop, open Z: drive, and check the “Documents (ドキュメント)” folder in it.
  • Downloading from the remote desktop to the local client:
    1. Select the “Download (ダウンロード)” tab in the “Transfer Files (ファイル転送)” panel, select the file, and press Ctrl+C.
    2. After confirming that the file is listed in the panel, click on the download button on the right and save it in any local location.
  • Please note that folders and zero size files are not allowed for neither uploading nor downloading.
    In case of Safari on iOS and Safari 8, “Upload” and “Download” are not supported.
    In case of Safari 9 and later version, “Download” is not supported.

2-3. With VMware Horizon Client


This is the procedure for using the Windows environment of The Zengaku Computer System with VMware Horizon Client.

For Linux, see below.
Install or Upgrade Horizon Client for Linux from VMware Product Downloads
For distributions that have been tested by VMware, see below.
System Requirements for Linux Client Systems

For Mac, see below.
Install Horizon Client on a Mac

For Windows, please see below. *Information as of March 2023.

The manual is also available as a PDF file.

[Copy & Paste]

You can copy and paste without any special settings.

3. Using Linux Desktop on the Zengaku Computer System

This section describes the instructions for using Linux desktop from Windows. To use Linux desktop from mac OS or Linux, use similar software intended for each OS.

3-1. VNC Vewer

VNC connections to the Linux server can only be made from IPs that are determined to be from Japan.


  1. Download a VNC Viewer suitable for your environment from
  2. Launch the VNC Viewer.
  3. Enter in the search bar.
  4. If this is the first time, a warning as follows appears. Click on [Continue].

    *The Catchphrase and the Signature are like watchword when connecting next time, and if this is different from the one at the last connection, a warning appears since there is a possibility of man-in-the-middle attack.
  5. Enter your user name and password and select [OK]. Please decide at your own risk whether to check on “Remember password”.
  6. Connection established.
  7. To end the session, disconnect with the operation of the VNC Viewer side. Simply close the window, or, click on the cross at the right end of the menu in the middle of the upper part of the screen as shown below (appearance varies slightly depending on your device) and select “Yes” in the confirmation dialog to disconnect.

    When you disconnect, the last screen will be displayed as thumbnail on the VNC Viewer, but be aware that the session is not stored.

4. Using UNIX shell on the Zengaku Computer System (SSH Access)

SSH connections to the Linux server require public key authentication from outside our university.


Using an SSH client, connect to either of

If you are from off-campus, you need to use VPN Service or log in with public-key authentication.

When logging in for the first time, possibly a confirmation message as to whether to trust the server is displayed since the host key of the server is not cached. In that case, check the fingerprint of the key displayed in the message and the fingerprint below to make sure if you are connected to the correct server.

Only icho01 is available at this time.

  • DSA
    MD5: 49:8c:be:5f:da:55:9f:0c:33:fc:ed:79:33:07:af:5f
    SHA256: PiVtTOUZYhSc+hs1gvxzPa5ocz9yx8bfl/RD2byVZA0
    MD5: 7c:ae:67:db:74:6d:72:45:7b:9f:2c:a1:d4:85:26:cf
    SHA256: E7UZuceaaM7ZUN4fJOXAHnLhpHDvocBZRmAHGAra65g
  • ED25519
    MD5: d7:84:c3:56:03:bd:c1:24:ec:92:1b:fb:c0:4a:f1:8f
    SHA256: og23EtY0KnB7hu6OBp76JRzrn8CMs7gcqEpHgVPAybw
  • RSA
    MD5: eb:01:87:b5:50:17:ee:97:5e:be:58:89:11:20:de:43
    SHA256: 9NyvCIpHnSE5O8awJ1AEOcgAhhx/YCNit+BRgz4LNrM

If you want to use X11 applications via SSH connection, please see this page.