Linux系统下VPN的研究与部署实现(11)
时间:2017-06-20 23:42 来源:毕业论文 作者:毕业论文 点击:次
[root@localhost root]#rpm -qa telnet telnet-0.17-25 //telnet.rpm是默认安装的// [root@localhost root]#rpm -qa telnet-server 空 //telnet-server.rpm是默认没有安装的// （2） 配置yum源 国内的两大门户网易和搜狐都有镜像服务器 下载repo文件 备份并替换系统的repo文件 [root@192 ~]# cd /etc/yum.repos.d/ [root@192 ~]# mv CentOS-Base.repo CentOS-Base.repo.bak [root@192 ~]# mv /root/CentOS6-Base-163.repo CentOS-Base.repo 3. 执行yum源更新 [root@192 ~]# yum clean all [root@192 ~]# yum makecache [root@192 ~]# yum update （3） 安装telnet-server [root@192 ~]# yum install telnet-server Loaded plugins: axelget, downloadonly, fastestmirror Repository base is listed more than once in the configuration Repository updates is listed more than once in the configuration Repository addons is listed more than once in the configuration Repository extras is listed more than once in the configuration Repository centosplus is listed more than once in the configuration Repository contrib is listed more than once in the configuration Loading mirror speeds from cached hostfile * addons: mirror.neu.edu.cn * base: mirror.neu.edu.cn * extras: mirror.neu.edu.cn * updates: mirror.neu.edu.cn Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package telnet-server.i386 1:0.17-41.el5 set to be updated --> Finished Dependency Resolution Installing: telnet-server i386 1:0.17-41.el5 base 35 k Transaction Summary =============================================================== Install 1 Package(s) Upgrade 0 Package(s) Total download size: 35 k Is this ok [y/N]: y Downloading Packages: Package base download size 36202 less than 54000,Skip plugin! telnet-server-0.17-41.el5.i386.rpm | 35 kB 00:03 Running rpm_check_debug Running Transaction Test Finished Transaction Test Transaction Test Succeeded Running Transaction Installing : telnet-server 1/1 Installed: telnet-server.i386 1:0.17-41.el5 Complete! （4） 在远端使用putty登陆 图 3.3使用Putty远程登录Linux 3.2.4 安装环境所需软件包 1.Dkms 2.kernel_ppp_mppe MPPE （Microsoft Point to Point Encryption，微软点对点加密） 3.ppp PPP（Point-to-Point Protocol，点到点协议） 4.pptpd （1） 查看还需安装哪些软件，由于RHEL 5 的 2.6.18 内核已经集成了MPPE和高版本的ppp [root@192 ~]# rpm -q ppp ppp-2.4.4-9.0.rhel5 [root@192 ~]# strings '/usr/sbin/pppd'|grep -i mppe|wc -l 46 检查PPP是否支持MPPE,若结果显示“0”则表示不支持，而“30”或更大的数字就表示支持。 (责任编辑：qin) |