一、ssh服务生成新的公钥和私钥[root@rhel6_80 ~]# ssh-keygen Generating public/private rsa key pair.Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. #私钥存放地址Your public key has been saved in /root/.ssh/id_rsa.pub. #公钥存放地址The key fingerprint is:3e:ff:b3:68:de:e7:06:1b:fb:21:49:44:bb:38:76:e3 root@rhel6_80The key's randomart image is:+--[ RSA 2048]----+| . || . . || o || o . || S + = || . . =oo || o E=. || o.o+.o. || o+.+Bo |+-----------------+[root@rhel6_80 ~]# ls .ssh/ id_rsa id_rsa.pub known_hosts #id_rsa私钥 id_rsa.pub公钥。
[root@rhel6_80 ~]# ssh-copy-id -i /root/.ssh/id_rsa.pub root@192.168.3.84 #将公钥发布给84服务器后,80再次链接84就不须要再输入密码[root@rhel6_80 ~]# ssh 192.168.3.84 Last login: Thu May 19 20:33:21 2016 from 192.168.3.130 警告!哈哈哈哈哈哈 PATH=/root/:/usr/lib64/qt-3.3/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin #无需输密码链接成功 [root@rhel6_84 ~]#
[root@rhel6_80 ~]# yum -y install xinetd[root@rhel6_80 ~]# vim /etc/xinetd.conf #配置文件
[root@rhel6_80 ~]# yum -y install telnet-server tftp-server rsync #安装测试用程序,测试被xinetd管理的程序
# default: off # description: The rsync server is a good addition to an ftp server, as it \[root@rhel6_80 ~]# vim /etc/xinetd.d/rsync #启动rsync服务 # allows crc checksumming etc. service rsync { disable = no #这里改为no,表示启动xinetd flags = IPv6 socket_type = stream wait = no user = root server = /usr/bin/rsync server_args = --daemon log_on_failure += USERID[root@rhel6_80 ~]# service xinetd restart #启动xinetd服务 中止 xinetd: [失败] 正在启动 xinetd: [肯定]
[root@rhel6_80 ~]# netstat -anptu |grep 873 #检测是否正常监听873端口,有标示rsync服务正常启动。 tcp 0 0 :::873 :::* LISTEN 3945/xinetd