BIP KB:
How To Block IP Addresses Using IPtables

Article By samantha


img

Best Linux Firewall iptables for your VPS at BIPmedia.com The following article describes various ways to block IPs using the built-in RedHat firewall, iptables. The following command will drop all incoming connections from IP xx.xx.xx.xx: 



iptables -I INPUT -s xx.xx.xx.xx -j DROP


To block a range, such as xx.xx.xx.* specify the CIDR block as follows: 

iptables -I INPUT -s xx.xx.xx.0/24 -j DROP


If you wanted to later remove this entry you would replace the -I with -D as follows: 

iptables -D INPUT -s xx.xx.xx.xx -j DROP
iptables -D INPUT -s xx.xx.xx.0/24 -j DROP



Tags: , , , ,

Spin Up A VPS Server In No Time Flat

Simple Setup

Full Root Access

Straightforward Pricing

DEPLOY A SECURE VPS SERVER TODAY!

Leave a Reply



Feedbacks


Creative Commons License
This work is licensed under a
Creative Commons Attribution-
NonCommercial-ShareAlike 4.0
International License.