security of the script

According to the sample source code of Ictrol,if want to disable a node,we have to write the password,like this:

 

 

[wzl@ra3 LocalLB]$ perl LocalLBNode.pl 10.0.16.245 443 admin 123456

 

Node 10.1.1.1:80 state set to: Disabled

 

 

Any better solution?

 

 

Thanks.