IBM SG24-5131-00 사용자 설명서

Special RS/6000 SP Topics 

After that, identify the HACWS event scripts to HACMP by executing the 

/usr/sbin/hacws/spcw_addevents 

command, and verify the configuration with the 

/usr/sbin/hacws/hacws_verify 

command. You should also check the cabling from the backup cws with the

/usr/sbin/hacws/spcw_verify_cabling 

command. Then reboot the primary and the backup cws, one after the other, 
and start cluster services on the primary cws with 

smit clstart

. After cluster 

services is up and running, check that control workstation services, such as 

SDRGetObjects

, are working as expected. If everything is fine, start up cluster 

services on the backup cws as well. Check for the completion of the cluster 
services startup with the following command:

grep "SPCW_APPS COMPLETE" /tmp/hacmp.out

 

Now you can cause a failover by stopping cluster services on the primary cws 
and see whether cws services are still available afterwards.

To understand security, we have to clarify some definitions first. 

is the process by which an entity tells another who it is.

Authentication is the process by which the other entity verifies this identity.

is the process performed by an entity to check if an agent, 
whose identity has previously been authenticated, has or 
does not have the necessary privileges to carry out some 
action.

Additionally, if information is transferred over an insecure network, as any 
TCP/IP network basically is, there is always a chance that someone is 
listening, so some sort of encryption is required.

These issues are solved with kerberos.