大橙子网站建设,新征程启航
为企业提供网站建设、域名注册、服务器等服务
服务器二次登录验证:
站在用户的角度思考问题,与客户深入沟通,找到苏尼特左网站设计与苏尼特左网站推广的解决方案,凭借多年的经验,让设计与互联网技术结合,创造个性化、用户体验好的作品,建站类型包括:成都网站制作、成都网站建设、外贸营销网站建设、企业官网、英文网站、手机端网站、网站推广、国际域名空间、网页空间、企业邮箱。业务覆盖苏尼特左地区。目前比较流行的两种方式
1 Google
https://github.com/google/google-authenticator
安装 关闭 selinux git clone https://github.com/google/google-authenticator.git yum install libtool ./bootstrap.sh ./configure make && make install google-authenticator 获取私钥 客户端输入。 Do you want me to update your "/root/.google_authenticator" file (y/n) y Do you want to disallow multiple uses of the same authenticationtoken? This restricts you to one login about every 30s, but it increasesyour chances to notice or even prevent man-in-the-middle attacks (y/n) Do you want to disallow multiple uses of the same authenticationtoken? This restricts you to one login about every 30s, but it increasesyour chances to notice or even prevent man-in-the-middle attacks (y/n) y By default, tokens are good for 30 seconds. In order to compensate forpossible time-skew between the client and the server, we allow an extratoken before and after the current time. If you experience problems withpoor time synchronization, you can increase the window from its defaultsize of +-1min (window size of 3) to about +-4min (window size of17 acceptable tokens).Do you want to do so? (y/n) y If the computer that you are logging into isn't hardened against brute-forcelogin attempts, you can enable rate-limiting for the authentication module.By default, this limits attackers to no more than 3 login attempts every 30s.Do you want to enable rate-limiting (y/n) y vim /etc/pam.d/sshd 第一行添加 auth required pam_google_authenticator.so vim /etc/ssh/sshd_config 修改为 ChallengeResponseAuthentication yes service sshd restart ln -s /usr/local/lib/security/pam_google_authenticator.so pam_google_authenticator.so
通过 私钥+时间戳 算出6位验证码,客户端和服务端匹配,则通过验证。
缺点:数据明文存储本地,root账号可以看到
应用商店搜索 Google身份验证器 安装
2 洋葱
https://github.com/secken/secken-ssh
git clone https://github.com/secken/secken-ssh.git
sh dep.sh
tips
将keyboard interactive 放到第一位
通过秘钥登录的 无法进行二次验证
参考:http://36kr.com/p/532998.html
http://www.xitongzhijia.net/xtjc/20141211/32369.html
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