Package: openssh-server

"openssh-server" package binaries on CentOS:

/usr/sbin/sshd /usr/sbin/.sshd.hmac

You may install this package on CentOS with yum install openssh-server

"openssh-server" package binaries on Debian:

/usr/sbin/sshd

You may install this package on Debian with apt-get install openssh-server