Port 22 AddressFamily any ListenAddress 0.0.0.0 ListenAddress :: 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 HostKey /etc/ssh/ssh_host_ed25519_key
KeyRegenerationInterval 1h ServerKeyBits 1024
# Logging SyslogFacility AUTH SyslogFacility AUTHPRIV LogLevel INFO
# Authentication: LoginGraceTime 2m PermitRootLogin yes StrictModes yes MaxAuthTries 6 MaxSessions 10
RSAAuthentication yes PubkeyAuthentication yes # The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2 # but this is overridden so installations will only check .ssh/authorized_keys AuthorizedKeysFile .ssh/authorized_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 yes PermitEmptyPasswords no
# Change to no to disable s/key passwords ChallengeResponseAuthentication yes
# Kerberos options KerberosAuthentication no KerberosOrLocalPasswd yes KerberosTicketCleanup yes KerberosGetAFSToken no
# GSSAPI options GSSAPIAuthentication yes GSSAPICleanupCredentials no GSSAPIStrictAcceptorCheck 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'. # WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several # problems. UsePAM yes
AllowAgentForwarding yes AllowTcpForwarding yes GatewayPorts no X11Forwarding yes X11DisplayOffset 10 X11UseLocalhost yes PermitTTY yes PrintMotd yes PrintLastLog yes TCPKeepAlive yes UseLogin no UsePrivilegeSeparation sandbox # Default for new installations. PermitUserEnvironment no Compression delayed ClientAliveInterval 0 ClientAliveCountMax 3 ShowPatchLevel no UseDNS yes PidFile /var/run/sshd.pid MaxStartups 10:30:100 PermitTunnel no ChrootDirectory none VersionAddendum none
# no default banner path Banner none
# Accept locale-related environment variables AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MonETARY LC_MESSAGES AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE AcceptEnv XMODIFIERS
# override default of no subsystems Subsystem sftp /usr/libexec/openssh/sftp-server
NOTE：
1、 以上的所有说明配置命令均已去掉‘#’（注释符号），请勿直接copy使用
2、 在修改sshd_config文件时，正确的姿势应该是在原配置文件中找到相关配置添加‘#’注释，再在文件末尾添加配置命令及选项
