sshd_config

#       $OpenBSD$

# 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 change a
# default value.

Port 22
#AddressFamily any
#ListenAddress localhost:22
#ListenAddress 127.0.0.1:22
#ListenAddress dojonet:22
#ListenAddress 192.168.0.1:22
#ListenAddress pc-01:22
#ListenAddress 192.168.0.2:22
#ListenAddress pc-02:22
#ListenAddress 192.168.0.3:22


# The default requires explicit activation of protocol 1
Protocol 2

# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
#HostKey /etc/ssh/ssh_host_ecdsa_key

# "key type names" for X.509 certificates with RSA key
# Note first defined is used in signature operations!
#X509KeyAlgorithm x509v3-sign-rsa,rsa-md5
#X509KeyAlgorithm x509v3-sign-rsa,rsa-sha1

# "key type names" for X.509 certificates with DSA key
# Note first defined is used in signature operations!
#X509KeyAlgorithm x509v3-sign-dss,dss-asn1
#X509KeyAlgorithm x509v3-sign-dss,dss-raw

# The intended use for the X509 client certificate. Without this option
# no chain verification will be done. Currently accepted uses are case
# insensitive:
#  - "sslclient", "SSL client", "SSL_client" or "client"
#  - "any", "Any Purpose", "Any_Purpose" or "AnyPurpose"
#  - "skip" or ""(empty): don`t check purpose.
#AllowedCertPurpose sslclient

# Specifies whether self-issued(self-signed) X.509 certificate can be
# allowed only by entry in AutorizedKeysFile that contain matching
# public key or certificate blob.
#KeyAllowSelfIssued no

# Specifies whether CRL must present in store for all certificates in
# certificate chain with atribute "cRLDistributionPoints"
#MandatoryCRL no

# A file with multiple certificates of certificate signers
# in PEM format concatenated together.
#CACertificateFile /etc/ssh/ca/ca-bundle.crt

# A directory with certificates of certificate signers.
# The certificates should have name of the form: [HASH].[NUMBER]
# or have symbolic links to them of this form.
#CACertificatePath /etc/ssh/ca/crt

# A file with multiple CRL of certificate signers
# in PEM format concatenated together.
#CARevocationFile /etc/ssh/ca/ca-bundle.crl

# A directory with CRL of certificate signers.
# The CRL should have name of the form: [HASH].r[NUMBER]
# or have symbolic links to them of this form.
#CARevocationPath /etc/ssh/ca/crl

# LDAP protocol version.
# Example:
# CAldapVersion 2

# Note because of OpenSSH options parser limitation
# use %3D instead of = !
# LDAP initialization may require URL to be escaped, i.e.
# use %2C instead of ,(comma). Escaped URL don't depend from
# LDAP initialization method.
# Example:
# CAldapURL ldap://localhost:389/dc%3Dexample%2Cdc%3Dcom

# SSH can use "Online Certificate Status Protocol"(OCSP)
# to validate certificate. Set VAType to
#  - none    : do not use OCSP to validate certificates;
#  - ocspcert: validate only certificates that specify `OCSP
#      Service Locator' URL;
#  - ocspspec: use specified in the configuration 'OCSP Responder'
#      to validate all certificates.
#VAType none

# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024

# Logging
# obsoletes QuietMode and FascistLogging
SyslogFacility AUTH
LogLevel INFO

# Authentication:

LoginGraceTime 30
PermitRootLogin no
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

#RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile     .ssh/authorized_rsa_keys
AuthorizedKeysFile      .ssh/authorized_dsa_keys

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and 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 no
PermitEmptyPasswords no

# Change to no to disable s/key passwords
ChallengeResponseAuthentication no

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes

# 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 no

#AllowGroups wheel admin
#AllowUsers andre@pc-01 marcio@pc-02
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding no
#X11DisplayOffset 10
#X11UseLocalhost yes
PrintMotd no
PrintLastLog no
#TCPKeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
#ChrootDirectory none

# no default banner path
#Banner none

# override default of no subsystems
Subsystem       sftp    /usr/lib/misc/sftp-server

# the following are HPN related configuration options
# tcp receive buffer polling. disable in non autotuning kernels
#TcpRcvBufPoll yes

# allow the use of the none cipher
#NoneEnabled no

# disable hpn performance boosts.
#HPNDisabled no

# buffer size for hpn to non-hpn connections
#HPNBufferSize 2048

# Example of overriding settings on a per-user basis
#Match User anoncvs
#       X11Forwarding no
#       AllowTcpForwarding no
#       ForceCommand cvs server