Dear Amr!
Modified the server SUSE firewall parameters to shut down the firewall permanently.
You can check the below steps to shut down firewall permanently :
1. input this:
vi /etc/sysconfig/SuSEfirewall2;
2. press the 'i' button to enter the insert mode and find FW_SERVICES_EXT_UDP=;
3. modify to FW_SERVICES_EXT_UDP=“22:54111” FW_SERVICES_EXT_TCP=“22:54111”;
4. then press the Esc button;
5. then enter wq!