Ubuntu 部署支持IPv6的rsh服务器

概述安装服务器和客户端配置rsh服务参数启动服务器启动客户端测试

概述

项目需求，需要部署一个支持ipv6的rsh-server进行测试，网上有部分资料，但按照其操作之后不好使。后经多方学习，终于解决。此处记录，以备忘。

安装服务器和客户端

sudo apt-get install rsh-client rsh-server xinetd

rsh-server：rsh服务器； rsh-client：rsh客户端； xinetd：extended internet daemon,是一个网络守护进程服务程序,又叫超级Internet服务器,常用来管理多种轻量级Internet服务，比如Telnet、ssh等都可以通过其进行管理，可以关注一下其配置文件/etc/xinetd.conf。

配置rsh服务参数

检查/etc/xinetd.d/目录下是否有如下文件： /etc/xinetd.d/rsh /etc/xinetd.d/rlogin /etc/xinetd.d/rexec 若以上文件不存在则创建，若存在则按照如下内容修改，若要支持IPv6请添加flags=IPv6参数： /etc/xinetd.d/rsh # default: on # descrīption: The rshd server is the server for the rcmd(3) routine and, \ # consequently, for the rsh(1) program. The server provides \ # remote execution facilities with authentication based on \ # privileged port numbers from trusted hosts. service shell { disable = no socket_type = stream wait = no user = root log_on_success += USERID log_on_failure += USERID server = /usr/sbin/in.rshd flags = IPv6 } /etc/xinetd.d/rlogin # default: on # descrīption: rlogind is the server for the rlogin(1) program. The server \ # provides a remote login facility with authentication based on \ # privileged port numbers from trusted hosts. service login { disable = no socket_type = stream wait = no user = root log_on_success += USERID log_on_failure += USERID server = /usr/sbin/in.rlogind flags = IPv6 } /etc/xinetd.d/rexec # default: off # descrīption: Rexecd is the server for the rexec(3) routine. The server \ # provides remote execution facilities with authentication based \ # on user names and passwords. service exec { disable = no socket_type = stream wait = no user = root log_on_success += USERID log_on_failure += USERID server = /usr/sbin/in.rexecd flags = IPv6 }

启动服务器

lxm@ubuntu:/etc/xinetd.d$ sudo service xinetd restart xinetd stop/waiting xinetd start/running, process 36722 lxm@ubuntu:/etc/xinetd.d$ netstat -antp (Not all processes could be identified, non-owned process info will not be shown, you would have to be root to see it all.) Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.1.1:53 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN - tcp 0 280 127.0.0.1:513 127.0.0.1:1021 ESTABLISHED - tcp 0 0 127.0.0.1:1021 127.0.0.1:513 ESTABLISHED - tcp6 0 0 :::80 :::* LISTEN - tcp6 0 0 ::1:631 :::* LISTEN - tcp6 0 0 :::512 :::* LISTEN - tcp6 0 0 :::513 :::* LISTEN - tcp6 0 0 :::514 :::* LISTEN - tcp6 1 0 ::1:34134 ::1:631 CLOSE_WAIT -

可以看到，端口512/513/514三个rsh相关的端口已处于监听状态，表示服务启动成功。

启动客户端测试

首先自己保证两端是通的（该处不赘述） 之后在客户端启动rsh连接；此处8001::130对应rsh服务器地址，8001::133对应rsh客户端地址。

lxm@ubuntu01:~$ rsh 8001::130 Password: Last login: Thu Oct 31 11:41:23 CST 2019 from 8001::133 on pts/11 Welcome to Ubuntu 14.04.6 LTS (GNU/Linux 4.4.0-142-generic x86_64) * Documentation: https://help.ubuntu.com/ Your Hardware Enablement Stack (HWE) is supported until April 2019. lxm@ubuntu:~$ lxm@ubuntu:~$

可以看到，通过rsh，客户端lxm@ubuntn01连接到了服务器lxm@ubuntu。 之后就可以执行命令了。 over