Firewall and iptables

firstly the iptables was accidentally wiped when trying to mount marvin to kennedy. SGE failed and so did ldap authentication from the nodes on new users.

solution for ldap

Fixed. Ldap is not ldap. It is smbladp which listens on port 1544. OPen up port 1544 (see below on how to open up ports)

restart ldap

service slapd restart

How to turn on and off firwll and save to iptables. https://www.cyberciti.biz/faq/turn-on-turn-off-firewall-in-linux/

/etc/init.d/iptables save
/etc/init.d/iptables stop

SGE stopped working:

Got it working was on port 6444

To open firewall ports. Log in as root, but ssh as root with -x

system-config-firewall 

"other ports" on the left - open the bad boys you want open.