I ran into an odd issue today – my firewall build script was failing on our account master node.
It turns out that I was trying to use a chain name in iptables that exceeded the maximum length allowed. I wanted to use "REMOTE_ACCOUNT_SLAV ES_ASHEVILLE" (31 chars) and the limit is 30 chars.
You can see this in
22:#define IPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
4:#define XT_FUNCTION_MAXNAMELEN 30
This was on CentOS 5.6.