Looks like I misread my nmap scan. I'm betting this is an IPTABLES issue.
thx for the help, guys...
So, I look at this box, and here is my iptables rules:
**************************************************************
# Firewall configuration written by system-config-securitylevel
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 1.2.3.4 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport
62752 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 443 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 21 -j ACCEPT
# -A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport
8700 -j ACCEPT
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-prohibited
COMMIT
*********************************************************
I add the following line
-A RH-Firewall-1-INPUT -p 3306 -j ACCEPT
restarted the service (/etc/init.d/iptables restart) and got the
following error:
***********************************************************
Flushing firewall rules: [ OK ]
Setting chains to policy ACCEPT: nat filter [ OK ]
Unloading iptables modules: [ OK ]
Applying iptables firewall rules: iptables-restore v1.2.11: unknown
protocol `3306' specified
Error occurred at line: 16
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
[FAILED]
*************************************************************
Perhaps some other program governs iptables on this ver of CentOS?