very possible this problem cause by /etc/security/limits.conf. the entry are: oracle soft nproc 2047 oracle hard nproc 16384 ps -ef|grep oracle|wc -l is 2000. Very close to 2047. Can I increase number to 3000 or more? If I increase number on limits.conf, do I need reboot to make it affect? Thanks. --- 13/2/27 (三)，Les Mikesell <lesmikesell at gmail.com> 寫道： > 寄件者: Les Mikesell <lesmikesell at gmail.com> > 主旨: Re: [CentOS] can not login to server (use ssh) > 收件者: "CentOS mailing list" <centos at centos.org> > 日期: 2013年2月27日,三,下午2:39 > On Wed, Feb 27, 2013 at 1:36 PM, > mcclnx mcc <mcclnx at yahoo.com.tw> > wrote: > > 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? > > Does that user have a working shell? Do you > want it to? > > -- > Les Mikesell > lesmikesell at gmail.com > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >