The Community Forums

Interact with an entire community of cPanel & WHM users!
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

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:
    15,620
    Likes Received:
    296
    Trophy Points:
    433
    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.
     
    #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. Nirjonadda

    Could not increase number of max_open_files to more than 50000

    Nirjonadda, Jul 25, 2017, in forum: Database Discussions
    Replies:
    3
    Views:
    116
    cPanelMichael
    Jul 25, 2017
  2. pujiarahman

    Maximum number of emails question

    pujiarahman, Jun 8, 2017, in forum: E-mail Discussions
    Replies:
    2
    Views:
    133
    pujiarahman
    Jun 9, 2017
  3. mathx

    Limit max number of php or apache processes per user

    mathx, May 10, 2017, in forum: Workarounds and Optimization
    Replies:
    7
    Views:
    512
    Anoop P Alias
    May 14, 2017
  4. islandsins

    Error page reveals version number

    islandsins, Apr 20, 2017, in forum: Security
    Replies:
    2
    Views:
    157
    islandsins
    Apr 21, 2017
  5. rpvw

    SOLVED Production Version Numbers

    rpvw, Apr 11, 2017, in forum: General Discussion
    Replies:
    7
    Views:
    214
    mtindor
    Apr 14, 2017

Share This Page