packet filter

Linux Iptables: Add / Delete An IP Address Remotely Using A Shell Script

by Vivek Gite on October 22, 2009 · 3 comments

I’ve root ssh access and need to add / delete a few IP address on fly using the IPtables command via local shell script. How do I add or delete an IP address remotely over the SSH session under CentOS / Redhat / RHEL / Debian / Ubuntu Linux?

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Iptables: Unblock / Delete an IP Address Listed in IPtables Tables

by Vivek Gite on January 23, 2009 · 2 comments

Q. I am a brand new user of a Linux iptables and I can’t find how to instruct my iptables to delete or unblock an IP address listed in iptables firewall. I’m using Debian Linux version. Can you help please?

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FreeBSD Stop IPFW Firewall

by Vivek Gite on February 6, 2008 · 0 comments

Q. How do I IPFW firewall in FreeBSD using a shell prompt or over remove ssh login?

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FreeBSD Setting up Firewall using IPFW

by Vivek Gite on April 14, 2007 · 24 comments

I’m new to FreeBSD and am trying to configure the firewall using IPFW, but I’m having a hard time understanding it as compare to Linux. Can you provide a small example on how to go about setting up the rules for a typical FreeBSD based Apache Web server?

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