Ban an IP Address From The Server - Web Hosting Forums Web Discussions on Hosting Webmaster forums Web Hosting Forums Domain Name Forums Web Hosting

incript_services · 08-29-2005, 09:35 PM

Have a user that keeps hammering your FTP or trying to login over and over and over again that you just want to ban and never see again? We'll show a quick and dirty method to ban an IP address from the server.

1) Login to the server as and su - to root.

2) If you are running iptables, you can enter:

iptables -A INPUT -s <IP> -j DROP

3) If you have APF firewall installed

apf -d <ip>

4) When you reboot this IP ban will be removed, meaning the IP will no longer be banned anymore.
If you have APF you can get around this by opening the deny hosts file.

pico /etc/apf/deny_hosts.rules

Scroll to the bottom and paste in the IP address.
Ctrl+X then Y to save the changes and exit.

5) Restart APF
/etc/apf/apf -r

DaDevil · 09-02-2005, 01:40 PM

wont the user get angry that he cant get into ftp?

mshadow · 09-03-2005, 08:00 PM

Well why would the user login over and over again and if they can just leave the ftp open till they finish uploading whatever they need to until the ftp timeout. If the user complain, they can just contact you, explain to them why they can not access their ftp and than you can remove their ip address from the ban list.

incript_services · 09-03-2005, 08:21 PM

Well this is just for security reson.Also let me tell you the user doesnt have any reason to be angry and if there is some genuine problem then he/she should report to his hosting company and it will be taken care off.