LinuxQuestions.org - Used Firewall rules for port 21

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Used Firewall rules for port 21

I used iptables and blocked port number 21 all ips other than my ip and 209.132.176.30 which is ftp.redhat.com. But i am getting these error messages.

Code:

Nov 12 11:46:30 Server yum-updatesd-helper: error getting update info: failed to retrieve repodata/primary.xml.gz from rhel-i386

-server-5 error was [Errno -1] Metadata file does not match checksum



Nov 12 13:46:12 Server yum-updatesd-helper: error getting update info: Cannot retrieve repository metadata (repomd.xml) for repository: rhel-i386-server-5. Please verify its path and try again

How do i trouble shoot this? Thank you.

Are you blocking outgoing connections?

No, I wrote rule in INPUT chain.

do you have an "allow established" on the input?
post your script...

No i don't. What is the rule?