vi /etc/pam.d/sshd 加入一行 account required pam_access.so 退出保存 vi /etc/security/access.conf 在尾行加入一行-: guest : ALL EXCEPT 192.168.0. 意思是guest用户从任何的IP地址都不能访问除了192.168.0. 这网段 保存退出 然后测试 # ssh guest@192.
意思是guest用户从任何的IP地址都不能访问除了192.168.0. 这网段
# ssh guest@127.0.0.1 不可以登陆
#
# The first field should be a "+" (access granted) or "-" (access denied)
# character.
#
# The second field should be a list of one or more login names, group
# names, or ALL (always matches). A pattern of the form user@host is
# matched when the login name matches the "user" part, and when the
# "host" part matches the local machine name.
#
# The third field should be a list of one or more tty names (for
# non-networked logins), host names, domain names (begin with "."), host
# addresses, internet network numbers (end with "."), ALL (always
# matches) or LOCAL (matches any string that does not contain a "."
# character).
其中user是匹配登陆的名host表示你本机器的IP地址
本人英语不是很好以上为基本大意如果有问题请多指教共同进步

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ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

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