Çözüm bende...
Sırayla hepsini yap olduğu gibi copy/paste
wget
http://www.directadmin.com/ipswap.sh
chmod 755 ipswap.sh
./ipswap.sh 1.2.3.4 4.3.2.1
(eski IP'in, bir boşluk yeni IP'in)
service httpd restart
service proftpd restart
service exim restart
service vm-pop3d restart
echo "action=cache&value=showallusers" >> /usr/local/directadmin/data/task.queue