linux pam 连接限制 ssh攻击,pam限制哪些用户可以使用sshd服务登陆

首先，创建一个用户组：

groupadd sshuser

vi /etc/pam.d/sshd

auth       required     pam_sepermit.so

auth       include      password-auth

account    required     pam_nologin.so

account    include      password-auth

password   include      password-auth

# pam_selinux.so close should be the first session rule

session    required     pam_selinux.so close

session    required     pam_loginuid.so

# pam_selinux.so open should only be followed by sessions to be executed in the user context

session    required     pam_selinux.so open env_params

session    required     pam_namespace.so

session    optional     pam_keyinit.so force revoke

session    include      password-auth

添加：

auth       required     pam_listfile.so item=group sense=allow file=/etc/security/allow-groups

编辑：

vi /etc/security/allow-groups加入sshuser

上面的配置没有生效，继续找原因。。。。