public:passwd_change

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision		 Previous revision
Next revisionBoth sides next revision
public:passwd_change [2023-02-14 16:31] – veselypublic:passwd_change [2023-03-16 12:22] – vesely
Line 9: Line 9:
   * your **Zimbra archive mail**  server account (if available) [A]   * your **Zimbra archive mail**  server account (if available) [A]
  
-===== Guidelines =====+===== Reset Password Guidelines =====
  
 ==== for Domain account [D] ==== ==== for Domain account [D] ====
  
-{{:public:pasted:20230214-163051.png?240x42}}+{{:public:pasted:20230214-163051.png?280x49}}
  
 //Username is usualy in the format **nsurname**  (first letter of name + surname, max. 8 characters. e.g. jdoe, bsprings, …). *// //Username is usualy in the format **nsurname**  (first letter of name + surname, max. 8 characters. e.g. jdoe, bsprings, …). *//
Line 27: Line 27:
  
 ==== Email Accounts Passwords ==== ==== Email Accounts Passwords ====
 +
 +{{:public:pasted:20230214-163625.png?280x61}}
  
 === for Zimbra email Exchange [X] === === for Zimbra email Exchange [X] ===
 +
 +{{:public:pasted:20230214-163743.png}}
  
 [[https://mail.cerge-ei.cz</font|Server: https://mail.cerge-ei.cz</font]]> [[https://mail.cerge-ei.cz</font|Server: https://mail.cerge-ei.cz</font]]>
Line 43: Line 47:
  
 === for Zimbra Archive [A] === === for Zimbra Archive [A] ===
 +
 +{{:public:pasted:20230214-163833.png}}
  
 [[https://mailarch.cerge-ei.cz</font|Server: https://mailarch.cerge-ei.cz</font]]> <WRAP round center tip 100%>__**PWMA - Self-service Portal**__  Go to the address [[https://portal.cerge-ei.cz/pwma|https://portal.cerge-ei.cz/pwma]] and log with your Archive Zimbra account. [[https://mailarch.cerge-ei.cz</font|Server: https://mailarch.cerge-ei.cz</font]]> <WRAP round center tip 100%>__**PWMA - Self-service Portal**__  Go to the address [[https://portal.cerge-ei.cz/pwma|https://portal.cerge-ei.cz/pwma]] and log with your Archive Zimbra account.
Line 54: Line 60:
 </WRAP> </WRAP>
  
-===   ===+---- 
 + 
 +===== MORE DETAILED INFORMATION ===== 
 + 
 +==== Locking the account and mailbox ==== 
 + 
 +Account is temporarily locked after several unsuccessful logon attempts with wrong password to avoid abuse and brute force password breaking. \\ There are three significant parameters of this feature: 
 + 
 +  * permissible number of failed attempts; 
 +  * time window of fails; 
 +  * timeout of unlocking. 
 + 
 +The account is locked if the number of allowed fails is exceeded. Failed attempts are counted during the time window. If logon attempts with wrong password stop, the counter is reset after the time window is over. If the account is locked, after the quarantine time it is unlocked again. \\  \\ <WRAP round center box important 60%>**Special warning for smartphone users** 
 + 
 +Smartphones usually use remembered password repeatedly regardless of its validity. Than you can easily lock the mailbox unintentionally.</WRAP> 
 + 
 +==== Threshold parameters - Active Directory ==== 
 + 
 +The Active Directory (shortly AD) serves as authentication authority for local network shares, desktop login, internal web pages, CEIS, CMS, Reporting etc. \\  \\ Account lockout duration: **3 minutes** \\ Account lockout threshold: **7 invalid logon attempts** \\ Account lockout counter reset: **after 3 minutes** 
 + 
 +==== Threshold parameters - Zimbra mailer ==== 
 + 
 +Number of consecutive failed logons allowed: **10** \\ Time to lockout the account: **30 minutes** \\ Time window in which the failed logons must occur to lock the account: **1 hour** \\  \\ Although the AD account is locked earlier, it is also quickly unlocked. If the attack over the mailer persists, the lock on the mailer is activated for a longer period and produces no new lock of the AD account.
  
 ===== FACTS / HINTS ===== ===== FACTS / HINTS =====
Line 60: Line 88:
   * **One account for all services**  (called Domain Account). There is **only ****one**** login name and password**  which serves **for**  almost **all applications**  and services at CERGE-EI (Login to computer; Network shares, CEIS; CMS; Reporting; internal web pages; printers etc.) Password may be changed **ONLY ONCE per day**.   * **One account for all services**  (called Domain Account). There is **only ****one**** login name and password**  which serves **for**  almost **all applications**  and services at CERGE-EI (Login to computer; Network shares, CEIS; CMS; Reporting; internal web pages; printers etc.) Password may be changed **ONLY ONCE per day**.
   * Usually you have an **independent password for Email Server Zimbra**  - including Webmail, SMTP and IMAP access; This case you can change the email password via Zimbra webmail. Than you can have two different passwords (recommended mode). Use [[https://mail.cerge-ei.cz|webmail]] for [[:public:emai:zimbra_password|Zimbra Password change ]] )   * Usually you have an **independent password for Email Server Zimbra**  - including Webmail, SMTP and IMAP access; This case you can change the email password via Zimbra webmail. Than you can have two different passwords (recommended mode). Use [[https://mail.cerge-ei.cz|webmail]] for [[:public:emai:zimbra_password|Zimbra Password change ]] )
-  * If you have an **older account**  at CERGE-EI you can still have the **password synced between email and domain**. Coordinate accounts separation with the IT office in advance. __Do not change the email password via Zimbra webmail to make it independent, it could lock your network account.__+  * <del>If you have an **older account**  at CERGE-EI you can still have the **password synced between email and domain**. Coordinate accounts separation with the IT office in advance. __Do not change the email password via Zimbra webmail to make it independent, it could lock your network account.__ </del>
  
   * **Passwords must meet complexity requirements**   * **Passwords must meet complexity requirements**
       * Passwords **must not contain the user's name or username**       * Passwords **must not contain the user's name or username**
-      * Passwords **must contain characters from the following four categories**: uppercase characters, lowercase characters, digits, other characters: ~!@#$%^&*_-+=`|\(){}[]:;"'<>,.?/+      * Passwords **must contain characters from the following four categories**: 
 +        * uppercase characters, 
 +        * lowercase characters, 
 +        * digits, 
 +        * other characters: ~!@#$%^&*_-+=`|\(){}[]:;"'<>,.?/
       * **Must be at least 9 characters long **       * **Must be at least 9 characters long **
   * **Passwords remembered by email clients can   * **Passwords remembered by email clients can
  <font inherit/inherit;;red;;inherit>LOCK YOUR ACCOUNT</font> **  <font inherit/inherit;;red;;inherit>LOCK YOUR ACCOUNT</font> **
   * Account is temporarily** locked after several unsuccessful logon attempts**  with a wrong password!   * Account is temporarily** locked after several unsuccessful logon attempts**  with a wrong password!
-  * **Email clients**  (like Thunderbird or Outlook), **smartphones**  and tablets or **web browsers**  (like Firefox or Chrome) **allow password to be remembered**. +  * **Email clients**  (like Thunderbird or Outlook), **smartphones**  and tablets or **web browsers**  (like Firefox or Chrome) **allow password to be remembered**  and can repeatedly lock the account if password does not match.
-  *+
  <font inherit/inherit;;red;;inherit>**BE AWARE that SMARTPHONES usually** use remembered password repeatedly</font> **regardless of its validity**  which results in the **account lockdown**.  <font inherit/inherit;;red;;inherit>**BE AWARE that SMARTPHONES usually** use remembered password repeatedly</font> **regardless of its validity**  which results in the **account lockdown**.
   * **Plan well before you change your password! **Recall all devices or applications with stored passwords (especially smartphones and tablets) in advance.   * **Plan well before you change your password! **Recall all devices or applications with stored passwords (especially smartphones and tablets) in advance.
Line 80: Line 111:
   * **Check/change password settings in all client applications.**  Mainly smartphones don't allow to change/save the new password without checking it on the server (It's impossible with locked account).   * **Check/change password settings in all client applications.**  Mainly smartphones don't allow to change/save the new password without checking it on the server (It's impossible with locked account).
   * **Email client usually requires both IMAP (incoming) and SMTP (outgoing) passwords to be set**   * **Email client usually requires both IMAP (incoming) and SMTP (outgoing) passwords to be set**
-===== MORE DETAILED INFORMATION ===== +===== Links =====
- +
-**Locking the account and mailbox** \\  \\ +
-Account is temporarily locked after several unsuccessful logon attempts with wrong password to avoid abuse and brute force password breaking. \\ +
-There are three significant parameters of this feature: +
- +
-  * permissible number of failed attempts; +
-  * time window of fails; +
-  * timeout of unlocking. +
- +
-The account is locked if the number of allowed fails is exceeded. Failed attempts are counted during the time window. If logon attempts with wrong password stop, the counter is reset after the time window is over. If the account is locked, after the quarantine time it is unlocked again. \\  \\ +
-<WRAP round center box important 60%>**Special warning for smartphone users**+
  
-Smartphones usually use remembered password repeatedly regardless of its validity. Than you can easily lock the mailbox unintentionally.</WRAP>+More complex information is available in the [[:public:user_accounts|User Accounts and Password usage]] article.
  
-__**Threshold parameters - Active Directory**__  \\  \\ +-.-
-The Active Directory (shortly AD) serves as authentication authority for local network shares, desktop login, internal web pages, CEIS, CMS, Reporting etc. \\  \\ +
-Account lockout duration: **3 minutes** \\ +
-Account lockout threshold: **7 invalid logon attempts** \\ +
-Account lockout counter reset: **after 3 minutes** \\  \\ __**Threshold parameters - Zimbra mailer**__  \\  \\ +
-Number of consecutive failed logons allowed: **10** \\ +
-Time to lockout the account: **30 minutes** \\ +
-Time window in which the failed logons must occur to lock the account: **1 hour** \\  \\ +
-Although the AD account is locked earlier, it is also quickly unlocked. If the attack over the mailer persists, the lock on the mailer is activated for a longer period and produces no new lock of the AD account.+
  
-===== Links ===== +{{:public:pasted:20230316-122144.png}}
- +
-More complex information is available in the [[:public:user_accounts|User Accounts and Password usage]] article.+
  
  
  • /var/www/html/dokuwiki/data/pages/public/passwd_change.txt
  • Last modified: 2023-04-21 12:46
  • by marp