ps -e | grep ssh

service ssh start

apt-get install ssh

cat sshd_config

#    $OpenBSD: sshd_config,v 1.102 // :: djm Exp $

# This is the sshd server system-wide configuration file.  See

# sshd_config() for more information.

# This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin

# The strategy used for options in the default sshd_config shipped with

# OpenSSH is to specify options with their default value where

# possible, but leave them commented.  Uncommented options override the

# default value.

#Port

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress ::

#HostKey /etc/ssh/ssh_host_rsa_key

#HostKey /etc/ssh/ssh_host_ecdsa_key

#HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying

#RekeyLimit default none

# Logging

#SyslogFacility AUTH

#LogLevel INFO

# Authentication:

#LoginGraceTime 2m

#PermitRootLogin prohibit-password

#StrictModes yes

#MaxAuthTries

#MaxSessions 

#PubkeyAuthentication yes

# Expect .ssh/authorized_keys2 to be disregarded by default in future.

#AuthorizedKeysFile    .ssh/authorized_keys .ssh/authorized_keys2

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none

#AuthorizedKeysCommandUser nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts

#HostbasedAuthentication no

# Change to yes if you don't trust ~/.ssh/known_hosts for

# HostbasedAuthentication

#IgnoreUserKnownHosts no

# Don't read the user's ~/.rhosts and ~/.shosts files

#IgnoreRhosts yes

# To disable tunneled clear text passwords, change to no here!

#PasswordAuthentication yes

#PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with

# some PAM modules and threads)

ChallengeResponseAuthentication no

# Kerberos options

#KerberosAuthentication no

#KerberosOrLocalPasswd yes

#KerberosTicketCleanup yes

#KerberosGetAFSToken no

# GSSAPI options

#GSSAPIAuthentication no

#GSSAPICleanupCredentials yes

#GSSAPIStrictAcceptorCheck yes

#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing,

# and session processing. If this is enabled, PAM authentication will

# be allowed through the ChallengeResponseAuthentication and

# PasswordAuthentication.  Depending on your PAM configuration,

# PAM authentication via ChallengeResponseAuthentication may bypass

# the setting of "PermitRootLogin without-password".

# If you just want the PAM account and session checks to run without

# PAM authentication, then enable this but set PasswordAuthentication

# and ChallengeResponseAuthentication to 'no'.

UsePAM yes

#AllowAgentForwarding yes

#AllowTcpForwarding yes

#GatewayPorts no

X11Forwarding yes

#X11DisplayOffset

#X11UseLocalhost yes

#PermitTTY yes

PrintMotd no

#PrintLastLog yes

#TCPKeepAlive yes

#UseLogin no

#PermitUserEnvironment no

#Compression delayed

#ClientAliveInterval

#ClientAliveCountMax

#UseDNS no

#PidFile /var/run/sshd.pid

#MaxStartups ::

#PermitTunnel no

#ChrootDirectory none

#VersionAddendum none

# no default banner path

#Banner none

# Allow client to pass locale environment variables

AcceptEnv LANG LC_*

# override default of no subsystems

Subsystem    sftp    /usr/lib/openssh/sftp-server

# Example of overriding settings on a per-user basis

#Match User anoncvs

#    X11Forwarding no

#    AllowTcpForwarding no

#    PermitTTY no

#    ForceCommand cvs server

PermitRootLogin yes 

service sshd restart

/etc/initd.d/sshd restart