17 lines
628 B
Markdown
17 lines
628 B
Markdown
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# Email notification for unknown sign-ins
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When a user successfully signs in from a previously unknown IP address,
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GitLab notifies the user by email. In this way, GitLab proactively alerts users of potentially
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malicious or unauthorized sign-ins.
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There are two methods used to identify a known sign-in:
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- Last sign-in IP: The current sign-in IP address is checked against the last sign-in
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IP address.
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- Current active sessions: If the user has an existing active session from the
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same IP address. See [Active Sessions](active_sessions.md).
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## Example email
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![Unknown sign in email](./img/unknown_sign_in_email_v13_0.png)
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