协议特定的错误代码："10054"、"*"、"*"。 SQLSTATE=08001

最后证明是防火墙的原因。
参考下面的资料。

If u are getting: SQL30081N Protocol specific error code(s): "10065", "*", "*". SQLSTATE=08001

If you are using Linux server , turn off your firewall service & check if you can connect to database remotely through

client
to stop firewall type this command on bash : $ etc/init.d/iptables stop

If now you can connect remotely thru client then
turn OFF firewall service from all run levels
before that check

$ chkconfig --list iptables

if they are ON @ runlevels 2,3,4,5 then

$ chkconfig --levels 2345 iptables off


Regards.