[CentOS] Frustrations with MySQL loss, tcpdump, netstat, etc

[ML]

>> I checked the firewall (system-config-securitylevel-tui) on the server and that has 3306:tcp allowed.
Sure:

>   netstat -tlnw

[root at indie ~]# netstat -tnlw
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State      
tcp        0      0 173.13.167.209:389          0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:10663             0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:10024             0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:10025             0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:7306              0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:3306                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:587                 0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:3310                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:111                 0.0.0.0:*                   LISTEN      
tcp        0      0 173.13.167.209:80           0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:465                 0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:25                  0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:921                 0.0.0.0:*                   LISTEN      
tcp        0      0 :::7072                     :::*                        LISTEN      
tcp        0      0 :::7777                     :::*                        LISTEN      
tcp        0      0 :::993                      :::*                        LISTEN      
tcp        0      0 :::995                      :::*                        LISTEN      
tcp        0      0 :::7780                     :::*                        LISTEN      
tcp        0      0 :::5222                     :::*                        LISTEN      
tcp        0      0 :::5223                     :::*                        LISTEN      
tcp        0      0 :::7335                     :::*                        LISTEN      
tcp        0      0 :::110                      :::*                        LISTEN      
tcp        0      0 :::143                      :::*                        LISTEN      
tcp        0      0 :::8080                     :::*                        LISTEN      
tcp        0      0 :::7025                     :::*                        LISTEN      
tcp        0      0 :::5269                     :::*                        LISTEN      
tcp        0      0 :::2966                     :::*                        LISTEN      
tcp        0      0 :::443                      :::*                        LISTEN      
tcp        0      0 :::10015                    :::*                        LISTEN      
tcp        0      0 :::7071                     :::*                        LISTEN      
[root at indie ~]# 

> 
>   itpables -L

[root at indie ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         
RH-Firewall-1-INPUT  all  --  anywhere             anywhere            

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
RH-Firewall-1-INPUT  all  --  anywhere             anywhere            

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination         

Chain RH-Firewall-1-INPUT (2 references)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            
ACCEPT     icmp --  anywhere             anywhere            icmp any 
ACCEPT     esp  --  anywhere             anywhere            
ACCEPT     ah   --  anywhere             anywhere            
ACCEPT     udp  --  anywhere             224.0.0.251         udp dpt:mdns 
ACCEPT     udp  --  anywhere             anywhere            udp dpt:ipp 
ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:ipp 
ACCEPT     all  --  anywhere             anywhere            state RELATED,ESTABLISHED 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:mysql 
ACCEPT     udp  --  anywhere             anywhere            state NEW udp dpt:ntp 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:idp-infotrieve 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:webcache 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:7071 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:pop3 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:imap 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:imaps 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:pop3s 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:smtps 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:imap4-ssl 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:smtp 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:http 
ACCEPT     tcp  --  anywhere             anywhere            state NEW tcp dpt:https 
REJECT     all  --  anywhere             anywhere            reject-with icmp-host-prohibited 
[root at indie ~]# 

> 
>   grep bind-address /etc/my.cnf

[root at indie ~]# grep bind-address /etc/my.cnf
[root at indie ~]# 

nothing here

-J