Iphone
 

Can you help me please?, How mount a iphone 4S? in a server Red Hat Enterprise Linux Server Release 5.4.

Thanks.

You don't say what you mean by "mount", but assuming you mean mount as a drive, you'd need fuse and other utilities:
...but, since you're using RHEL 5.4, you can't do it. Mainly because 5.4 isn't supported any longer, so you don't have access to the online repositories. So call Red Hat support, and ask them where you can get old packages for 5.4.

And unless you're PAYING FOR RHEL, you shouldn't be using it. Load CentOS instead...and load the latest version, which is 6.5.