Belle II Registration and Account FAQ

Last modified by gellrich on 2026-02-19 12:45

belle2-logo-little.png

 

Information

Test your account_name / password by trying to login to

> ssh <account_name>@bastion.desy.de .

r information message here.

Information

The Belle II Collaborative Services (B2CS) are accessible with DESY credentials which consist of

ACCOUNT_NAME and PASSWORD

Your email address does NOT work!

Passwords must be renewed every 12 month. You will be informed by email well in advance. Please don't ignore this!

Renew your password via https://passwd.desy.de/ .  The service now contains a RECOVERY functionality! See DESY IT docu on the password recovery.

For lost passwords contact us at b2-helpdesk_AT_belle2_DOT_org from your institution email address and add your account_name! The reset might take a few work days.

Consider to use a password safe to avoid loosing the password.

Account names can NOT be changed.

The DESY account (for the B2CS) and the KEK account are independent and must be handled separately.

Information
Information

Please change your  Personal Contact Address (CA) in the Belle II Membership Management System. This will trigger the change of the email address associated with your account. Changes in the the Sympa mailing list service should be done manually by you. Please note: the @belle2.org email addresses are simply forwarding to your PCA. Hence those addresses are shall NOT be used as PCAs as this would introduce loops.

This page is meant to serve as a supplement to the normal documentation in case of misunderstandings or unclear descriptions. It does not replace the documentation which therefore should be considered first.

Try the 'ctl-f' to search for your problem!

Consider also:

General

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My question is not in here?

If you want us to add another tip here, let us know via b2-helpdesk_AT_belle2_DOT_org.

Basics

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What are Belle II credentials?

The Belle II credentials are your account name and your password (NOT email address). The credentials are valid for all resources. Please denote DESY Requirements for Account Names and Passwords. Passwords must be renewed after 12 month. You will be informed by email well in advance.

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I lost the password of my KEKCC account.

The account of the KEK computing facility is different from the credentials for the Belle II collaborative services (B2CS). For your KEKCC account please contact usersoffice_AT_mail_DOT_kek_DOT_jp . The B2CS is handled by b2-helpdesk_AT_belle2_DOT_org .

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Can I use my KEK account/password at DESY?

No, the DESY and the KEK registries are completely independent. Please refer to Belle II User Registration to request DESY credentials (account name / password). Your DESY credentials are good for all Belle II collaborative services including the membership management system.

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Do I need a KEK account to get into the Belle II membership management system?

No, you request Belle II membership via Belle II User Registration, which generates login credentials at DESY which are good for all Belle II collaborative services including the membership management system.

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Do I need a KEK account to gain access to the Belle II collaborative services and tools?

No, you request Belle II membership via Belle II User Registration, which generates login credentials at DESY which are good for all Belle II collaborative services including the membership management system.

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Can I use my DESY account/password at KEK?

No, the KEK and the DESY registry are completely independent. Please refer to Belle II Newcomers to request a KEK account.

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Validity lifetime of accounts?

Your DESY is connected to your Belle II membership which is managed by your institution representative (IR). After your membership has expired, a grace period of ~1 month will be given before the account expires.The KEK account is managed independently. Please contact the KEK user office.

Contacts

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I need to contact an expert?

See Belle II Support Contacts.

Belle II Membership

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I am new to Belle II. What do I have to do?

Please refer to the page Belle II Newcomers. You need to register!

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How do I become a Belle II member and how do I get into the Belle II Membership Management System? 

If you have DESY credentials to access the Belle II collaborative services such as confluence, you were automatically included in the Belle II Membership Management System (B2MMS). If not please refer to Belle II User Registration. With your registration you will be included in the Belle II Membership Management System (B2MMS).

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Who is the representative of my institution (IR)?

Please ask your colleagues. We might also help you by email at b2-helpdesk_AT_belle2_DOT_org.

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How long does it take to get a Belle II membership?

Your membership request triggers an approval  workflow which involves the representative of your institution (IR), and the IB - if you are physicist / faculty/staff - followed by the creation of your DESY credentials (account name / password). The entire process is usually finished within one workday but obviously depends on the availability of people.

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Where is the Belle II members list?

Please refer to the official Belle II members list (protected).

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My membership 'Expired'.

If your affiliation with your current Belle II institution ends, e.g. after finishing a thesis, your current Belle II institution representative (IR) will set your Belle II membership to 'Expired'. Subsequently your DESY account for the Belle II collaborative services and tools will expired with a grace period of one month as well. See Belle II Membership Management System for information if you change to another Belle II institution. Do not register again, your record remains in the system.

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How do I reactivate my membership and account?

If you have been a Belle II member you still have a record in the B2MMS and an account in the DESY registry. If expired both can be reactivated. Please do not request new ones but ask your IR to reactivate your membership. Your account will then be activated automatically. Give half a working day for expired accounts.

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My membership expires but I am still a Belle II author?

The date until you are a Belle II author is maintained in the B2MMS (Authorship End Date). After your membership expired your account can be made be valid until that date to enter authors.belle2.org. See Belle II Authorship and contact  contact the Belle II helpdesk at b2-helpdesk_AT_belle2_DOT_org.

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My membership category must cahnge as I will now work as a master, physicist -term limited, faculty/staff member.

Please change the membership category in your B2MMS record in b2mms.belle2.org . Your IR will have to approve your changes to become valid. See Belle II Membership Management System.

Registration

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I can't find the links to the registration portals.

Please check the section Belle II Registration Portal.

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After registration I received an email about the readiness of my account. How can I change the password?

The account is the one you typed into the form at registration time (NOT an email address!). The initial password is was set by the system and shown in the form. Please remember it!

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The certificate-based registration fails, because my name is not in the CN of my certificate.

The portal compares your name with the name in your certificate to avoid miss-use of stolen certificates. In this very rare case cancel the process and contact b2-helpdesk_AT_belle2_DOT_org.

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My initial password does not work. I am sure though that it is the right one.

The DESY registry needs some time (<=5h) to set up the credentials and notify the connected services. Please try again in a few hours. You will get an email if everything is set up.

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Why am I asked for my date and place of birth?

In order to uniquely identify you in our system, we have to know your date and place of birth. Be sure the information will not be used elsewhere according to the privacy rules.

Collaborative Services and Tools

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Where is a list of all collaborative services and tools (B2CS)?

Please see Belle II Collaborative Services and Tools.

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I have login problems to the collaborative services!

You need your DESY credentials (account_name / password). An email address does not work.  Please always use the 'https' URL and add a trailing '/', e.g. https://questions.belle2.org/ .

Indico

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Which Indico can be access?

The official Belle II Indico is at indico.belle2.org. It is operated at DESY. You can use your DESY credentials (account name / password) to log in. There are more Indico instances though which are sometimes used for Belle II affairs as well, such as Indico@DESY and Indico@KEK and even https://indico.cern.ch/. They all have separate user managements. Your Belle II account / password does not work there!

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What about the KEK Indico?

The KEK Indico system is operated independently!

Account and Password

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I am working at / employed by DESY?

People who work at or/and are employed by DESY (only those!) must contact their group administrator at DESY or see the user consulting office (UCO) at DESY to have their password reset.

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What is an account?

Your DESY account is a 4-8 character string; case insensitive. The DESY account is not an email address! We recommend to use parts of your last name.

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I have a already a DESY account?

Belle II collaborators who have already DESY credentials should contact b2-helpdesk_AT_belle2_DOT_org. The credentials can be prepared for Belle II. A Grid user certificate and the membership in the VO 'belle' is strongly recommended though.

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How can I login to DESY?

Your credentials (account name / password) are good to login to DESY by ssh to bastion.desy.de. You will see your AFS home dir at DESY (DESY.DE). If you want to use the DESY analysis facility (NAF) read DESY Analysis Facility and its section 'Getting Started'.

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How long is my recent password valid?

Your password is valid for 12 month. You will get a series of warning by email, starting 20 days in advance. Please make sure to renew your password in time!

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When does my password expire?

Login by ssh to bastion.desy.de using your DESY credentials and type 'kinit'. Example:

bastion02: [~] kinit -V -A
Password for xxx@DESY.DE:
Warning: Your password will expire in 33 days on Wed Mar 28 00:59:58 2018


The service at  https://passwd.desy.de/ contains a PASSWORD RECOVERY functionality. See DESY IT docu on the password recovery.

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I forgot/lost my password?

See DESY IT docu on the password recovery.

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How can I set a mobil phone number or TOTP for the password recovery?

Your DESY account is a 4-8 character string; case insensitive (not an email address). It can not be changed.

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I received an email from the DESY registry that the account expires?

DESY will take care! There is nothing you must do! According to the DESY (security) rules, accounts automatically expire but can be extended by an admin. As long as you are an active Belle II member according to your status in the B2MMS, your account will be extended.

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My password expired and I got a temporary one?

My password expired and I got a temporary password from b2-helpdesk_AT_belle2_DOT_org.
Log in to  https://passwd.desy.de/ and set a new one. Remember your old/expired password is gone forever.

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What about capital letters in account names and email addresses?

In general account names and email addresses are case insensitive!

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What are the DESY password requirements/rules?

Please refer to DESY Requirements for Account Names and Passwords .

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What are the 'Conditions of Use for Information-Processing Systems at DESY' all about?

At the bottom of the request portal you are asked to agree to the 'Conditions of Use for Information-Processing Systems at DESY'. The underlying document contains links to pages which are not relevant for abroad users, such as the local work council 'http://www.desy.de/betriebsrat'.

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How long does it take to create my login credentials?

The creation of the login credentials is finished within one work day. Please note: DESY is in the Central European Time-zone (CET).

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I want to change my password?

Use https://passwd.desy.de/. It connects to the DESY registry which manages the access to afs, web pages, and Atlassian tools (confluence). The account name / password is valid for all resources. Please denote DESY Requirements for Account Names and Passwords.

We also saw problems with old Java versions in browsers. In the case try to copy-and-paste the new password into the browser. 

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Which resources can I use by default?

See Belle II Requesting Additional Resource Access.

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What is my Belle II account at DESY good for?

The DESY Belle II credentials you got through the registration procedure can be used to access the new Belle II web pages and the new Confluence Wiki.

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Do I have to renew my Belle II account at DESY yearly as at KEK?

No, this is not necessary but you will be asked regularly to change your password. The account name / password is valid for all resources. Please denote DESY Requirements for Account Names and Passwords.

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Do I have a DESY account?

 If you were able to or are still able to login to bastion.desy.de , you got DESY credentials earlier which can be used for Belle II. Contact b2-helpdesk_AT_belle2_DOT_org. A new registration attempt via the portal would fail.

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Renewing / changing password?

The DESY credentials ( account name / password) are valid for all resources. Use https://passwd.desy.de/ . Please denote DESY Requirements for Account Names and Passwords.

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I have problems with the portal https://password.desy.de .

Please use exclusively https://passwd.desy.de/to change your password. Please note: When typing in your (initial,  temporary or new) password WHILE TYPING NO DOTS OR STARS ARE SHOWING UP ON THE CONSOLE. Unfortunately you literally have to type blindly.

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My newly set account/password does not work?

After setting a new password, please make sure to clear the cache of your browser ( e.g. firefox) to avoid using the old password.

Email Addresses

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I changed my email address?

Please change your personal email address (PEM) in the B2MMS. The change will automatically be changed in the mailing lists (ML) coll-members_AT_belle2_DOT_org as well as b2mms-members, b2mms-users, b2mms.coll-authors. Please see Mailing Lists for the manual bulk change of your email address in the MLs.

Note: Contact KEK to change your home email address connected to your KEK account. See Belle II Newcomers.

Note: Your addresses first.last_AT_desy_DOT_de and first.last_AT_belle2_DOT_org are just forwarding to your PEM!

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Names and email addresses.

The DESY registry will use the names you have given as 'given middle family' and create email addresses given.middle.family_AT_belle2.org. Make up your mind if you really want the middle name. The spaces will be transformed to dots! Example: 'Nino de Angelo' will become 'nino.de.angelo_AT_belle2.org' whereas 'Nino deAngelo' (no middle name) will end up in 'nino.deangleo_AT_belle2.org'.

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How do I change my email address in the collaboration email list?

The collaboration members email list is automatically created from the Belle II Membership Management System (B2MMS). Please change your email address there (see Belle II Membership Management System).

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Do I have a DESY and belle2.org e-mail address?

The addresses are of the form 'firstname[.middlename].lastname_AT_belle2.org'. See Belle II email Addresses . The assigned address can also be found in your personal record in the Belle II membership management system.

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What does PEM stand for?

'Privacy Enhanced Mail'. This is your 'real' personal email address with your mailbox behind.

Mailing Lists

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I want to subcribe or unsubscribe from mailing lists.

There is documentation on Mailing Lists. As long as your DESY/Belle II account is valid you can refer to it. Contacts for mailing lists at KEK can be found it https://belle.kek.jp/secured/mailing-lists/ . The  DESY/Belle II mailing lists (_AT_belle2_DOT_org) are maintained by listmaster_AT_ belle2_DOT_org.

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I changed my email address?

Please see Mailing Lists for the manual bulk change of your email address in the MLs.

Grid User Certificate and VO 'belle' membership (VOMS)

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What are Grid certificates all about?

Please refer to the page What are Grid User Certificates . Note: Service or host certificates identify services and hosts not users!

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Are there step-by-step instructions to obtain and use a Grid user certificate?

Please go to Belle II User Registration and scroll down.

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I have already a Grid user certifcate?

Belle II collaborators who have a already a Grid user certificate and are already member of the VO 'belle' see Belle II User Registration. Make sure the Grid user certificate is in the browser!

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I got my Grid user certificate in an e-mail?

You must copy the certificate part in the email into a file such as 'mycert.cer' and import this into your browser.

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Is my Grid user certificate in the browser?

Check existence and validity of your Grid user certificate in your firefox browser in Preferences / Advanced / Certificates / View Certificates / Your Certificate.

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I am confused about the name of the VO. Is it 'belle' or 'belle2.org'?

 For historic reasons the VO 'belle' is the correct one. Although this seems wrong, please do not use the VO 'belle2.org'.

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Am I member of the VO 'belle'?

See https://voms.cc.kek.jp:8443/voms/belle .

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With my certificate I am already member of another VO?

The Grid user certificate allows to electronically prove your identity. This is independent of any VO membership though it can be used to gain membership one ore more VOs. 

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I lost the password of my Grid user certificate?

 As the private key the password is as the the word implies 'private'. It is only known to you. Unfortunately you must request a new certificate from your CA.

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How to convert my KEK user certificate to .p12?

Please refer to this KEK manual.

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I needed a .p12 cert for my browser but seem to have .p7b?

Please refer to https://www.sslshopper.com/ssl-converter.html for details.

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How to test my Grid user certificate in ~/.globus ?

Grid users usually have exported their Grid user certificate to ~/.globus to use it with Grid commands such as 'voms-proxy-init', 'dirac-proxy-init', or 'gb2_proxy_init'. The following commands may help to investigate the situation.

The directory:

> cd ~/.globus

> ls -l

-r--r--r-- 1  usercert.pem

-r-------- 1  userkey.pem


Checking if public (cert) and private (key) match:


> openssl x509 -noout -modulus -in usercert.pem | openssl md5
> openssl rsa -noout -modulus -in userkey.pem | openssl md5


Checking subject, issuer, and validity dates:

> openssl x509 -subject -issuer -email -dates -noout -in ~/.globus/usercert.pem


Recreating a single file with public and private key to be improted into a broser:

> openssl pkcs12 -export -out my_cert.p12 -inkey userkey.pem -in usercert.pem

DIRAC

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I want to use DIRAC?

If you want to use the Belle II DIRAC service you need to register with DIRAC in addition to obtaining membership with VOMS. See Computing GettingStarted. The error message from 'gb2_proxy_init' would be: ' DN <your DN> is not registered'

Others

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My browser complains about connection / SSL problems?

Connection errors such as 'SSL_ERROR_HANDSHAKE_FAILURE_ALERT' are due to old or missing CA certificates in your browser. You might want to check Preferences / Advanced / Certificates / View Certificates / Servers and Authorities . Also consider to use another browser. We have good experiences with firefox and we saw also safari on MAC working. From our experience there is usually someone in your group or institute who managed.

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When trying to connect to the KEK VOMS server I see 'SSL_ERROR_HANDSHAKE_FAILURE_ALERT'?

In order to create the necessary secure connection to the KEK VOMS server, your browser needs to accept the VOMS server's certificate. Click 'Advanced' /  'Add exception' / 'Get certificate' / 'Store permanently' / 'Confirm' .

DESY Analysis Facility (NAF)

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I can not log in to the NAF WGS (naf-belle2.desy.de)?

Your account is most likely not yet prepared to use the NAF. Please refer to the DESY Analysis Facility, in particular read the section 'Getting Started' on that page.

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Are there infos about the NAF?

Please refer to the DESY Analysis Facility, in particular read the section 'Getting Started' on that page.

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Do I have already access to the NAF and storage?

ssh <your_account_name>@bastion.desy.de

bastion02: [~] id

... 5296(af-belle2)...

bastion02: [~] ssh naf-belle2

naf-belle11: [~] ls -l /nfs/dust/belle2/user/<your_account_name>

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I want to use Belle II computing resources?

Registered Belle II users may get access to the Analysis Facility (NAF) at DESY. Please refer to Belle II Requesting Additional Resource Access.

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Are there infos about the NAF?

The NAF provides scratch space of per default 1TB/user on a distributed file system (DUST). Please look for '/nfs/belle2/user/<your_account_name>'. If it is not yet there please contact b2-helpdesk_AT_belle2_DOT_org.

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I need access to additional resouces?

See Belle II Requesting Additional Resource Access.