I tried to connect on a centos server from another server linux in ssh mode the problem is :i lost ssh package in the server destination (where i would connect) because of a wrong manipulation so i have this on my shell:

can someonne help me to fix this problem? i need to connect to the other server to restor some data...

If you can't connect to that machine, how do you want to apply a fix to that machine remotely?

if there's no other door to the server (telnet, kvm remote terminal, etc ...), then you have no other solution than to send someone to that server. he'll need to connect a screen, pc and maybe mouse, fix the ssh service, and then you can get back in.<br>
kvm over IP could save you (if it's already in place of course):
http://en.wikipedia.org/wiki/KVM_swi..._IP_.28iKVM.29

tx for your response,i don't have idea if there's kvm in place cause i'm in training and i never acceded to the engine room(where the server is placed), as your opinion the only solution is to go directly to the server and try to fix ssh ?
So ,why use KVM(whit a simple screen and mouse to control the server)?how i can how fix ssh?

i need to install the package?cause the problem is that i removed accidently rpm and yum before the "ssh bug" and i tried to connect from another server(centos) which is in the same network to send rpm package whit ssh but it doesn't work cause ssh is not recognized (removed too)now in the server in problem,the error was that i exited and close the ssh session while i must not disconect from it!

As has been recommended in one of your other posts the only real option here is to do a full reinstall and restore any data that you have backed up. You have effectively gotten the system into such a state that it will never really be 100% reliable.