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用root直接Telnet远程Linux服务器

 
开启了Telnet命令远程Linux服务器后,发现不能用root用户直接登录,非root用户是可以的,这是因为Telnet远程Linux过程中,传输都是明文的,极不安全,所以Linux系统默认禁止root直接Telnet登录。 当然可以先用非root用户登录后,再用su root命令切换到root用户,但是总归有些不方便。 希望强制允许root通过Telnet连接Linux服务器,那也没问题,修改下面2个配置文件即可: 1、编辑/etc/pam.d/login文件,注释带pam_securetty.so的一行 [root@localhost /]# vi /etc/pam.d/login #%PAM-1.0 #auth [user_unknown=ignore success=ok ignore=ignore default=bad] pam_securetty.so \\前面加#号注释此行 auth include system-auth account required pam_nologin.so account include system-auth password include system-auth # pam_selinux.so close should be the first session rule session required pam_selinux.so close session required pam_loginuid.so session optional pam_console.so # pam_selinux.so open should only be followed by sessions to be executed in the user context session required pam_selinux.so open session required pam_namespace.so session optional pam_keyinit.so force revoke session include system-auth -session optional pam_ck_connector.so 2、编辑/etc/pam.d/remote文件,注释带pam_securetty.so的一行 [root@localhost /]# vi /etc/pam.d/remote #%PAM-1.0 #auth required pam_securetty.so \\前面加#号注释此行 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 session required pam_namespace.so session optional pam_keyinit.so force revoke session include password-auth 现在Telnet尝试用root用户登录,发现已经可以正常登录了:
QQ截图20161122133214
怎么开启用Tlenet远程登录Linux服务器?这个还是百度吧,一大堆。
原文链接:用root直接Telnet远程Linux服务器,转载请注明来源!
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