Please whitelist cPanel in your adblocker so that you’re able to see our version release promotions, thanks!

The Community Forums

Interact with an entire community of cPanel & WHM users!

Max number of blocked IP addresses

Discussion in 'Security' started by casben79, Feb 24, 2014.

  1. casben79

    casben79 Registered

    Joined:
    Aug 25, 2013
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    cPanel Access Level:
    Website Owner
    Hi Guys,

    I have seen a sustained attack from many many IP addresses trying to brute force weak passwords in SMTP.

    The attacker/s have many IP addresses at their control and at 200 permanent blocks he was simply using a rotation of more than 200 to continually attack.

    I have upped the limit in CSF to 1000 but there is now approaching 800 IP's in the attack and it doesn't seem to be slowing down.

    I can copy IP addresses over to the CPHulk blacklist, but can't find if there is a maximum number of IP's in that system as well.

    Is there a max number of IP addresses in CPHulk or is there a way to up the 1000 limit in CSF?

    Cheers
    Ben
     
    #1 casben79, Feb 24, 2014
  2. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    Joined:
    May 20, 2003
    Messages:
    16,570
    Likes Received:
    439
    Trophy Points:
    583
    Location:
    Pennsylvania
    cPanel Access Level:
    Root Administrator
    Twitter:
    I wouldn't suggest increasing the deny limit to 1000. Assuming they are not getting in and most of it hitting email accounts you don't even have on your server, your system, and CSF, is doing what it's supposed to be doing. Yes, those emails are annoying. I think many, if not most of us are getting them as well. Make sure your system, your security, and your accounts, are all locked down well.

    On a more personal note, I've sent off another donation to chirpy at ConfigServer.com, recently. I think we all should.
     
    Stop hovering to collapse... Click to collapse... Hover to expand... Click to expand...
    #2 Infopro, Feb 24, 2014
  3. casben79

    casben79 Registered

    Joined:
    Aug 25, 2013
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    1
    cPanel Access Level:
    Website Owner
    Infopro,

    Thanks for the info.

    Will definitely be sending chirpy some coinage soon, as well as purchasing CXS for all my servers :D

    Cheers
    Ben
     
    #3 casben79, Feb 24, 2014
(You must log in or sign up to post here.)
Loading...
Similar Threads - number blocked addresses
  1. domeneas

    SOLVED whmapi1 emailtrack_user_stats showing very high numbers in v76.0.5-6

    domeneas, Nov 13, 2018, in forum: General Discussion
    Replies:
    3
    Views:
    118
    cPanelMichael
    Dec 11, 2018 at 10:36 AM
  2. Nakshathra

    Remove large number of files?

    Nakshathra, Oct 6, 2018, in forum: General Discussion
    Replies:
    3
    Views:
    107
    Infopro
    Oct 10, 2018
  3. davidmcc3

    Directory Privacy numbers in password issue

    davidmcc3, Oct 5, 2018, in forum: User Experience
    Replies:
    7
    Views:
    258
    Infopro
    Oct 10, 2018
  4. Azim

    Notification for number of emails sent?

    Azim, Sep 6, 2018, in forum: E-mail Discussion
    Replies:
    1
    Views:
    120
    cPanelLauren
    Sep 6, 2018
  5. caothang2609

    Limit number of recipient per email sent

    caothang2609, Jul 12, 2018, in forum: E-mail Discussion
    Replies:
    1
    Views:
    274
    cPanelMichael
    Jul 12, 2018

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Accept Learn More...
    Dismiss Notice