we have CENTOS 5.6 on DELL server. I tried to use ssh login to server and failed: ssh oracle at ora10 oracle at ora10's password: Read from remote host ora10: Connection reset by peer Connection to ora10 closed. I have not problem login as "root" or other users. Is it possible too many processes run by "oracle" and don't allow me login. I check server current have 2000 oracle processes running. $ ps -ef|grep oracle|wc -l 2000 anyone know how to fix this issue? Thanks.