关于linux下的ssh服务配置文件的说明
SFTP 可以使用的命令
CD 改变目录
LS 列出文件
MKDIR
RMDIR
PWD
CHGRP
CHOWN
CHMOD
LN OLDNAEM NEWNAME
RM PATH
RENAME OLDNAME NEWNAEM
EXIT 推出
LCD PATH 改变当前目录到本机目录
LLS
LMKDIR
LPWD L=LOCALHOST
PUT LOCALHOST_PATH HOST_PATH
PUT 本机目录或者文件
GET 远程主机目录文件 本机目录
GET 远程主机目录或者文件
GET *
GET *.RPM
sshd_config
# $OpenBSD: sshd_config,v 1.59 2002/09/25 11:17:16 markus Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin
# 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 SSH 默认的坚挺端口
#Protocol 2,1 选择SSH的版本
#ListenAddress 0.0.0.0 监听的IP地址
#ListenAddress ::
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key SSH VERSION 1 使用的密钥
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key SSH VERSION 2 使用的RSA私钥
#HostKey /etc/ssh/ssh_host_dsa_key SSH VAESION 2 使用的 DSA私钥
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 3600 版本一的密钥从新生成时间间隔
#ServerKeyBits 768 SERVER_KEY 的长度
# Logging
#obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH SSH登陆系统 记录信息 记录的位置 默认是/VAR/LOG/SECUER
SyslogFacility AUTHPRIV
#LogLevel INFO
# Authentication:
#UserLogin no 在SSH 下不接受LOGIN 程序登陆
#LoginGraceTime 120
#PermitRootLogin yes 是否让ROOT用户登陆
#StrictModes yes 用户的HOST_KEY 改面的时候不让登陆
#RSAAuthentication yes 是否使用纯的RAS认证 针对VERSION 1
#PubkeyAuthentication yes 是否使用PUBLIC_KEY 针对VERSION 2
#AuthorizedKeysFile .ssh/authorized_keys 使用不需要密码登陆的的帐号时帐号的存放文件所在的文件名
# rhosts authentication should not be used
#RhostsAuthentication no 本机系统不使用 RHOSTS 使用RHOSTS 不安全
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes 是否取消上面的认证方式 当然选是
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no 不使用针对 VERSION 1 使用RHOSTS 文件在/ETC/HOSTS.EQUIV 配合RAS进行认证 不建议使用
# similar for protocol version 2
#HostbasedAuthentication no 针对VERSION 2 也是上面的功能
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no 是否忽略主目录的 ~/.ssh/known_hosts文件记录
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes 是否需要密码验证
#PermitEmptyPasswords no 是否允许空密码登陆
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes 挑战任何密码验证
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#AFSTokenPassing no
# Kerberos TGT Passing only works with the AFS kaserver
#KerberosTgtPassing no
# Set this to 'yes' to enable PAM keyboard-interactive authentication
# Warning: enabling this may bypass the setting of 'PasswordAuthentication'
#PAMAuthenticationViaKbdInt no
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes 是否显示上次登陆信息
#PrintLastLog yes 显示上次登陆信息
#KeepAlive yes 发送连接信息
#UseLogin no
#UsePrivilegeSeparation yes 用户权限设置
#PermitUserEnvironment no
#Compression yes
#MaxStartups 10 连接的画面的设置 从连接就是登陆画面
# no default banner path
#Banner /some/path
#VerifyReverseMapping no
# override default of no subsystems
Subsystem sftp /usr/libexec/openssh/sftp-server
DenyUsers * 设置受阻的用户 代表全部用户
DenyUsers test
DenyGroups test
SSH 自动登陆设置
１设置CLIENT端建立PUBLIC_KEY 和 PRIVATE_KEY
[TEST@TEST TEST] SSH-KEYGEN –T RSA //-T 说明使用RSA 加密算法
生成密钥的文件夹 $HOME/.SSH/ID_RSA
上传PUBLIC_KEY 到SERVER
SFTP TEST@TEST
LCD /HOME/.SSH
PUT ID_RSA.PUB
EXIT
登陆到SERVER
执行命令
[TEST@TEST SSH] CAT ../ID_RSA.PUB >> AUTHORIZED_KEYS
相关的安全设置
/ETC/SSH/SSHD_CONFIG
/ETC/HOSTS.ALLOW
/ETC/HOSTS.DENY
IPTABLES
编辑/ETC/HOSTS.DENY
SSHD : ALL :SPAWN (/BIN/ECHO SECURITY NOTICE FROM HOST `/BIN/HOSTNAME` ;\
/BIN/ECHO ; /USR/SBIN/SAFE_FINGER @%H )|\
/BIN/MAIL –S “%d -%H SECURITY” ROOT@LOCALHOST &\
:TWIST (/BIN/ECHO –E “\N\nWARNING connection not allowed. You attempt has been logged. \n\n\n 警告信息
CD 改变目录
LS 列出文件
MKDIR
RMDIR
PWD
CHGRP
CHOWN
CHMOD
LN OLDNAEM NEWNAME
RM PATH
RENAME OLDNAME NEWNAEM
EXIT 推出
LCD PATH 改变当前目录到本机目录
LLS
LMKDIR
LPWD L=LOCALHOST
PUT LOCALHOST_PATH HOST_PATH
PUT 本机目录或者文件
GET 远程主机目录文件 本机目录
GET 远程主机目录或者文件
GET *
GET *.RPM
sshd_config
# $OpenBSD: sshd_config,v 1.59 2002/09/25 11:17:16 markus Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin
# 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 SSH 默认的坚挺端口
#Protocol 2,1 选择SSH的版本
#ListenAddress 0.0.0.0 监听的IP地址
#ListenAddress ::
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key SSH VERSION 1 使用的密钥
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key SSH VERSION 2 使用的RSA私钥
#HostKey /etc/ssh/ssh_host_dsa_key SSH VAESION 2 使用的 DSA私钥
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 3600 版本一的密钥从新生成时间间隔
#ServerKeyBits 768 SERVER_KEY 的长度
# Logging
#obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH SSH登陆系统 记录信息 记录的位置 默认是/VAR/LOG/SECUER
SyslogFacility AUTHPRIV
#LogLevel INFO
# Authentication:
#UserLogin no 在SSH 下不接受LOGIN 程序登陆
#LoginGraceTime 120
#PermitRootLogin yes 是否让ROOT用户登陆
#StrictModes yes 用户的HOST_KEY 改面的时候不让登陆
#RSAAuthentication yes 是否使用纯的RAS认证 针对VERSION 1
#PubkeyAuthentication yes 是否使用PUBLIC_KEY 针对VERSION 2
#AuthorizedKeysFile .ssh/authorized_keys 使用不需要密码登陆的的帐号时帐号的存放文件所在的文件名
# rhosts authentication should not be used
#RhostsAuthentication no 本机系统不使用 RHOSTS 使用RHOSTS 不安全
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes 是否取消上面的认证方式 当然选是
# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
#RhostsRSAAuthentication no 不使用针对 VERSION 1 使用RHOSTS 文件在/ETC/HOSTS.EQUIV 配合RAS进行认证 不建议使用
# similar for protocol version 2
#HostbasedAuthentication no 针对VERSION 2 也是上面的功能
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no 是否忽略主目录的 ~/.ssh/known_hosts文件记录
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes 是否需要密码验证
#PermitEmptyPasswords no 是否允许空密码登陆
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes 挑战任何密码验证
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#AFSTokenPassing no
# Kerberos TGT Passing only works with the AFS kaserver
#KerberosTgtPassing no
# Set this to 'yes' to enable PAM keyboard-interactive authentication
# Warning: enabling this may bypass the setting of 'PasswordAuthentication'
#PAMAuthenticationViaKbdInt no
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes 是否显示上次登陆信息
#PrintLastLog yes 显示上次登陆信息
#KeepAlive yes 发送连接信息
#UseLogin no
#UsePrivilegeSeparation yes 用户权限设置
#PermitUserEnvironment no
#Compression yes
#MaxStartups 10 连接的画面的设置 从连接就是登陆画面
# no default banner path
#Banner /some/path
#VerifyReverseMapping no
# override default of no subsystems
Subsystem sftp /usr/libexec/openssh/sftp-server
DenyUsers * 设置受阻的用户 代表全部用户
DenyUsers test
DenyGroups test
SSH 自动登陆设置
１设置CLIENT端建立PUBLIC_KEY 和 PRIVATE_KEY
[TEST@TEST TEST] SSH-KEYGEN –T RSA //-T 说明使用RSA 加密算法
生成密钥的文件夹 $HOME/.SSH/ID_RSA
上传PUBLIC_KEY 到SERVER
SFTP TEST@TEST
LCD /HOME/.SSH
PUT ID_RSA.PUB
EXIT
登陆到SERVER
执行命令
[TEST@TEST SSH] CAT ../ID_RSA.PUB >> AUTHORIZED_KEYS
相关的安全设置
/ETC/SSH/SSHD_CONFIG
/ETC/HOSTS.ALLOW
/ETC/HOSTS.DENY
IPTABLES
编辑/ETC/HOSTS.DENY
SSHD : ALL :SPAWN (/BIN/ECHO SECURITY NOTICE FROM HOST `/BIN/HOSTNAME` ;\
/BIN/ECHO ; /USR/SBIN/SAFE_FINGER @%H )|\
/BIN/MAIL –S “%d -%H SECURITY” ROOT@LOCALHOST &\
:TWIST (/BIN/ECHO –E “\N\nWARNING connection not allowed. You attempt has been logged. \n\n\n 警告信息