Right, so iptables is not disabled but you do appear to have the correct rule in there to allow incoming connections on udp port 69.I'm not entirely sure I understand what you mean... [by TrevorH]
on 04/18/2013 – Made popular on 04/18/2013
I've been going through my web server, getting rid of some security holes and set up iptables to do port redirects so my server instance does not have to run under root. The port redirects seem to work fine but I just noticed that outgoing SSH connections don't seem to work anymore. When I flush iptables, SSH starts working again.
I have a problem. I have iptables enabled in my ubuntu system on which tftp server is configured. Now when I try to do a tftpget from another ubuntu 32-bit machine, file transfer is not happening. But, when iptables are disabled, everything is fine. I heard that some ip_conntrack module is required for tftp to work with ip tables enabled.
I have implemented iptables on my Linux EC2 servers where rate limit incoming for port 80 has been applied. This is my iptables rule - http://pastebin.ca/2307975. I have other EC2 servers that are connecting on this server.
How can I exclude/whitelist a specific ip address from the iptables rule I've set?
i'd like to basically drop all packets, but still allow port 22, 80 and 52533. ATM this firewall doesn't allow pinging, or for me to use yum update. How can I add that? Thanks for advice. Also is there an easier way to open port 80?