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"WHM/cPanel root access alert" from DNS cluster servers

Discussion in 'Security' started by Bdzzld, Oct 31, 2011.

  1. Bdzzld

    Bdzzld Well-Known Member

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    Hi,

    I've recently set up a new cPanel servers and have added the server to four other servers in an already present DNS cluster. After doing this I always receive an "WHM/cPanel root access alert" e-mail from every server in this DNS cluster as soon as a log onto WHM. Is this normal behaviour?

    I've setup CSF/LFD on all servers, but only receive these alerts from this new server.

    Now I know I can add the IP-addresses of these servers to the csf.allow file, but I just wanted to know if this new server is setup correctly as I've never seen this kind of behaviour before.

    Thanks.
     
    #1 Bdzzld, Oct 31, 2011
  2. Infopro

    Infopro cPanel Sr. Product Evangelist
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    Is cPHulk Brute Force Protection enabled? This will also send out an email when: "Send a notification upon successful root login when the IP is not whitelisted:"
     
    #2 Infopro, Oct 31, 2011
  3. Bdzzld

    Bdzzld Well-Known Member

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    Hi InfoPro,

    Thanks for your suggestion. cPHulk was indeed enabled. I've just diabled it as CSF/LFD will do a far better job i.m.o.

    The alerts are actually send out by LFD :

    Code:
    lfd on server.domainname.xxx: WHM/cPanel root access alert from xxx.xx.xxx.xxx
     
    #3 Bdzzld, Oct 31, 2011
  4. k-planethost

    k-planethost Well-Known Member

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    thats normal since they sync the changes.
    did you press sync changes or standalone server?
     
    #4 k-planethost, Oct 31, 2011
  5. Bdzzld

    Bdzzld Well-Known Member

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    Three of the four servers are used as DNS server (sync) and the other one is only using it (standalone).
    The funny thing is all servers create the alert; also the standalone one. Besides that, only this new server generates these alerts and not also the other servers in the DNS cluster...
     
    #5 Bdzzld, Oct 31, 2011
  6. garrettp

    garrettp Well-Known Member
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    Are all of the servers running 11.30? If not this may explain the differences as 11.28 -> 11.30 was a major update.

    My suggestion would be to add each of the clustered servers to the csf.ignore file since they are each a trusted source.
     
    #6 garrettp, Oct 31, 2011
  7. Bdzzld

    Bdzzld Well-Known Member

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    All servers are running the latest release version of cPanel. So, that's not it.
    The ony thing I can think of is the difference in the version of BIND.
    This new server is running CentOS 6 with its newest version of BIND and the other servers are much older running CentOS 4.x and 5.x.
     
    #7 Bdzzld, Oct 31, 2011
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