zoukankan      html  css  js  c++  java
  • sshd_config配置注释

    # $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 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/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预设端口
    #AddressFamily any 地址簇 ipv4 ipv6 还是所有
    #ListenAddress 0.0.0.0 监听地址
    #ListenAddress ::

    # Disable legacy (protocol version 1) support in the server for new
    # installations. In future the default will change to require explicit
    # activation of protocol 1
    Protocol 2 ssh协议版本

    # HostKey for protocol version 1
    #HostKey /etc/ssh/ssh_host_key ssh version 1使用的私钥
    # 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 version 2使用的DSA私钥

    # Lifetime and size of ephemeral version 1 server key
    #KeyRegenerationInterval 1h version1的私钥更新周期
    #ServerKeyBits 1024 version1的私钥的长度

    # Logging
    # obsoletes QuietMode and FascistLogging
    #SyslogFacility AUTH 通过AUTH发送日志
    SyslogFacility AUTHPRIV 通过AUTHPRIV发送日志
    #LogLevel INFO 日志级别

    # Authentication:

    #LoginGraceTime 2m 登录连接时长
    #PermitRootLogin yes 允许管理员身份登录
    #StrictModes yes 登录之前检查用户家目录和rhost文件的权限和所有权
    #MaxAuthTries 6 认证次数
    #MaxSessions 10 最大连接数

    #RSAAuthentication yes 只允许RSA认证
    #PubkeyAuthentication yes 公钥认证
    #AuthorizedKeysFile .ssh/authorized_keys 存放远程复制来得公钥文件
    #AuthorizedKeysCommand none 是否允许authorized_keys中的command项
    #AuthorizedKeysCommandRunAs nobody 限制能够在authorized_keys中的使用command项的用户

    # For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
    #RhostsRSAAuthentication no 是否开启基于rhosts的主机RSA算法认证,秘钥存放于 /etc/ssh/ssh_kown_hosts
    # similar for protocol version 2
    #HostbasedAuthentication no 是否开启基于主机的秘钥认证
    # Change to yes if you don't trust ~/.ssh/known_hosts for
    # RhostsRSAAuthentication and HostbasedAuthentication
    #IgnoreUserKnownHosts no 是否忽略主机用户识别, 前提是/.ssh/knows_hosts是否可信
    # Don't read the user's ~/.rhosts and ~/.shosts files
    #IgnoreRhosts yes 不查询用户主目录下的 /.rhosts /.shosts文件

    # To disable tunneled clear text passwords, change to no here!
    #PasswordAuthentication yes 使用口令方式认证
    #PermitEmptyPasswords no 使用空口令登录
    PasswordAuthentication yes

    # Change to no to disable s/key passwords
    #ChallengeResponseAuthentication yes
    ChallengeResponseAuthentication no 不开启质疑-应答认证

    # Kerberos options 要使用Kerberos认证,服务器需要一个可以校验 KDC identity 的 Kerberos servtab
    #KerberosAuthentication no 是否允许使用基于 Kerberos的用户认证。默认值为”no”。仅用于SSH-2
    #KerberosOrLocalPasswd yes 如果 Kerberos 密码认证失败,那么该密码还将要通过其它的认证机制(比如 /etc/passwd)。默认值为”yes”。
    #KerberosTicketCleanup yes 是否在用户退出登录后自动销毁用户的 ticket 。默认值是”yes”
    #KerberosGetAFSToken no 如果使用了 AFS 并且该用户有一个 Kerberos 5 TGT,那么开启该指令后,将会在访问用户的家目录前尝试获取一个 AFS token 。默认为”no”
    #KerberosUseKuserok yes

    # GSSAPI options
    #GSSAPIAuthentication no 是否允许使用基于 GSSAPI 的用户认证。默认值为”no”。仅用于SSH-2
    GSSAPIAuthentication yes
    #GSSAPICleanupCredentials yes 是否在用户退出登录后自动销毁用户凭证缓存。默认值是”yes”
    GSSAPICleanupCredentials yes
    #GSSAPIStrictAcceptorCheck yes 是否对接收到的用户凭证严格校验
    #GSSAPIKeyExchange no 是否开启密钥交换

    # 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
    UsePAM yes 启用pam认证

    # Accept locale-related environment variables 接受本地相关的环境变量类型
    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

    #AllowAgentForwarding yes
    #AllowTcpForwarding yes 允许TCP转发
    #GatewayPorts no 转发路径端口
    #X11Forwarding no 是否开启X11转发
    X11Forwarding yes
    #X11DisplayOffset 10 设置转发的可显示区数字为10
    #X11UseLocalhost yes 是否将X11的转发服务器地址保存到loopback地址
    #PrintMotd yes 设置登录后是否显示/etc/motd文件中的信息
    #PrintLastLog yes 设置登录后是否显示上一次登录时间
    #TCPKeepAlive yes keepalive检测
    #UseLogin no 是否在交互式登录时启用login
    #UsePrivilegeSeparation yes 是否让 sshd(8)通过创建非特权子进程处理接入请求的方法来进行权限分离 默认值是”yes
    #PermitUserEnvironment no 指定是否允许 sshd(8) 处理 ~/.ssh/environment 以及~/.ssh/authorized_keys 中的 environment= 选项。默认值是”no”。
    #Compression delayed 是否对通信数据进行加密,还是延迟到认证成功之后再对通信数据加密 可用值:”yes” “delayed”(默认) “no”
    #ClientAliveInterval 0 设置空闲登录的最大时长
    #ClientAliveCountMax 3 在没收到任何数据的时候,最多向3个客户端进行keepalive检测
    #ShowPatchLevel no 显示补丁级别
    #UseDNS yes 开启域名解析
    #PidFile /var/run/sshd.pid 存放守护进程的默认文件
    #MaxStartups 10 最大可以保持多少个未认证的连接
    #PermitTunnel no 允许tun设备转发
    #ChrootDirectory none 是否允许切换目录

    # no default banner path
    #Banner none 不设置欢迎词

    # override default of no subsystems
    Subsystem sftp /usr/libexec/openssh/sftp-server 是否开启sftp服务

    #Host *.local 限制主机名
    # CheckHostIP no 限制主机IP

    # Example of overriding settings on a per-user basis
    #Match User anoncvs 限制只允许某个用户登录
    # X11Forwarding no 开启X11转发
    # AllowTcpForwarding no 允许TCP转发
    # ForceCommand cvs server 限制命令sshd_config配置注释

  • 相关阅读:
    map映射的用法
    相似的字串(hash+二分)
    进制 /字符串 hash
    CF#632 C.Eugene and an array
    2020牛客寒假算法基础集训营6 H-云
    Educational Codeforces Round 80 (Div. 2)
    Codeforces Round #601 (Div. 2)补题
    luogu-单调队列/单调栈专题
    Comet OJ
    Comet OJ
  • 原文地址:https://www.cnblogs.com/NiceTime/p/10025698.html
Copyright © 2011-2022 走看看