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Fail2Ban: login_log filter webmaild

Discussion in 'Security' started by Bouke, Dec 26, 2017.

  1. Bouke

    Bouke Registered

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    Hello,

    I would like to use a Fail2Ban filter for the cPanel login_log (/usr/local/cpanel/logs).
    Unfortunately I am not experienced with these filters. I can't figure out a working regex for webmaild.

    I would like to filter rules like these:

    [2017-12-26 20:59:45 +0100] info [webmaild] 123.123.123.123 - test2@domain.com "POST /login/?login_only=1 HTTP/1.1" FAILED LOGIN webmaild: user password hash is missing from system (user probably does not exist)

    [2017-12-26 21:00:59 +0100] info [webmaild] 123.123.123.123 - test1@domain.com "POST /login/?login_only=1 HTTP/1.1" FAILED LOGIN webmaild: user password incorrect

    I am not sure how to write the required failregex lines. I am hoping some could kindly help me, please.
     
    #1 Bouke, Dec 26, 2017
  2. rpvw

    rpvw Well-Known Member

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    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #2 rpvw, Dec 26, 2017
    cPanelMichael likes this.
  3. cPanelMichael

    cPanelMichael Forums Analyst
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    Hello,

    I concur with @rpvw. CSF is likely the best approach if you'd like to avoid writing custom rules.

    Thank you.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #3 cPanelMichael, Dec 27, 2017
  4. Bouke

    Bouke Registered

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    Many thanks as this is very helpful. I am surprised that CSF works out of the box (although I have changed some things).
     
    #4 Bouke, Dec 29, 2017
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