I was instructed to set up NTP with authentication on our linux machines. We are using Cisco devices as our time servers on our network.
I tested authentication on one of our RHEL 6 boxes and was able to setup authentication and sync with the server.
As I went to config it on one of our RHEL 5 machines I noticed that there is not ntpdate service, only ntpd. It was my understanding that ntpd (network time protocol daemon) was the server and ntpdate was the client. It seems that in RHEL 5 there is no ntpdate, so if I want the machine to ONLY be a client do I use ntpd?
Can someone explain this? For the RHEL 5 machines am I using ntpd as the client? Also how can I make it so machines can not look at these clients for time updates?