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public:passwd_change [2023-02-14 16:36] – [Email Accounts Passwords] vesely | public:passwd_change [2023-03-16 12:22] – vesely | ||
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* your **Zimbra archive mail** | * your **Zimbra archive mail** | ||
- | ===== Guidelines ===== | + | ===== Reset Password |
==== for Domain account [D] ==== | ==== for Domain account [D] ==== | ||
- | {{: | + | {{: |
//Username is usualy in the format **nsurname** | //Username is usualy in the format **nsurname** | ||
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==== Email Accounts Passwords ==== | ==== Email Accounts Passwords ==== | ||
- | {{: | + | {{: |
=== for Zimbra email Exchange [X] === | === for Zimbra email Exchange [X] === | ||
+ | |||
+ | {{: | ||
[[https:// | [[https:// | ||
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=== for Zimbra Archive [A] === | === for Zimbra Archive [A] === | ||
+ | |||
+ | {{: | ||
[[https:// | [[https:// | ||
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</ | </ | ||
- | === | + | ---- |
+ | |||
+ | ===== 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%> | ||
+ | |||
+ | Smartphones usually use remembered password repeatedly regardless of its validity. Than you can easily lock the mailbox unintentionally.</ | ||
+ | |||
+ | ==== 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 ===== | ||
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* **One account for all services** | * **One account for all services** | ||
* Usually you have an **independent password for Email Server Zimbra** | * Usually you have an **independent password for Email Server Zimbra** | ||
- | * If you have an **older account** | + | * <del>If you have an **older account** |
* **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**: | + | * 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 | ||
< | < | ||
* Account is temporarily** locked after several unsuccessful logon attempts** | * Account is temporarily** locked after several unsuccessful logon attempts** | ||
- | * **Email clients** | + | * **Email clients** |
- | * | + | |
< | < | ||
* **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. | ||
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* **Check/ | * **Check/ | ||
* **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%> | + | |
- | Smartphones usually use remembered password repeatedly regardless of its validity. Than you can easily lock the mailbox unintentionally.</ | + | More complex information is available in the [[: |
- | __**Threshold parameters | + | -.- |
- | 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 | + | |
- | 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: |
- | + | ||
- | More complex information is available in the [[:public:user_accounts|User Accounts and Password usage]] article. | + | |