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cpsrvd error log: Possible denial of service?

Discussion in 'General Discussion' started by SamSpade, Jun 9, 2019.

  1. SamSpade

    SamSpade Member

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    Two weeks ago I re-installed my second DNSOnly nameserver. Both nameserver are clustered and are updated to the latest availabe CentOS and DNSOnly version. Since then CSF's daily log scanner report continues to show under /usr/local/cpanel/logs/error_log entries like this one

    Code:
    warn [cpsrvd] Previous check_sessions still running with pid: xxxxx.  Possible cpsrvd denial of service attack in progress. at cpsrvd.pl line 1141. cpanel::cpsrvd::script() called at cpsrvd.pl line 422
    where the pid # varies.

    The first nameserver was installed years ago running als the latest version of DNSOnly but without these errors.

    I checked also for evidences of a denial of service attack. There were no suspicious activities.

    Do you have any ideas what might be wrong?

    Thanks
    Sam
     
  2. keat63

    keat63 Well-Known Member

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    I see this quite frequently.
    I've never gotten to the bottom of it, but it doesn't seem to cause me any issues.
     
  3. cPanelLauren

    cPanelLauren Forums Analyst II Staff Member

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    This indicates that for whatever reason the checks cpsrvd does are not completing in the alotted time frame.

    Can you do to hard restart of cpsrvd and let me know if you continue to see the same errors?

    Code:
    /scripts/restartsrv_cpsrvd --restart --hard
     
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