nano /etc/ssh/sshd_config
$OpenBSD: sshd_config,v 1.101 2017/03/14 07:19:07 djm Exp $
This is the sshd server system-wide configuration file. See
sshd_config(5) 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 22
#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 yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#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 10
#X11UseLocalhost yes
#PermitTTY yes
PrintMotd no
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 300
#ClientAliveCountMax 3
#UseDNS no
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#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