Disable / Turn off Linux Firewall (Red hat/CentOS/Fedora Core)
Type the following two commands (you must login as the root user):
/etc/init.d/iptables save
/etc/init.d/iptables stopOR
chkconfig iptables off
service iptables save
service iptables stop
If you do not want to turn off Linux firewall because of security, then the keepalive feature can be disabled in the Smarts product as follows:
<BASEDIR>/smarts/bin/sm_edit conf/runcmd_env.sh
SM_DISABLE_KEEPALIVES = 1
Restart your Smarts domain in order for the change to take effect.