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Can't Access Plesk Admin Because Of DOS Attack, Block IP Address Through SSH?

I can’t access Plesk Amdin because of DOS attack; can I block a hostname or IP address through SSH? If so, how would I be able to do this?

Thank you!

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3

Answers


  1. 0

    Probably the easiest is to SSH to your box use vim to and add the following to the top of your .htaccess file in the root of your domain (/var/www/vhosts/yourdomain.com/httpdocs/.htaccess):

    deny from 12.345.67.89

    Obviously replace the IP address with the one you want to block. Repeat this for any sites you think are being attacked.

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  2. 0

    If you have iptables you can block it using simple rule:

    iptables -I INPUT --source 1.2.3.4 -j DROP

    This rule drops packets coming from IP 1.2.3.4.

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  3. 0

    iptables -I INPUT -p tcp -s 1.2.3.4 -m statistic –probability 0.5 -j DROP
    iptables -I INPUT n -p tcp -s 1.2.3.4 -m rpfilter –loose -j ACCEPT # n would be an numeric index into the INPUT CHAIN — default is append to INPUT chain

    iptables -I INPUT -p tcp -m hashlimit –hashlimit-mode srcip -s 1.2.3.4 –hashlimit-srcmask –hashlimit-above 9/second -j DROP

    iptables -I INPUT -p tcp -s 1.2.3.4 -m limit –sport 80 –limit 100/second -j ACCEPT

    There are countless others for your circumstances.

    Sincerely,

    ArrowInTree

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