{"id":543,"date":"2015-08-29T00:24:40","date_gmt":"2015-08-29T00:24:40","guid":{"rendered":"https:\/\/www.nicktailor.com\/?p=543"},"modified":"2022-10-21T11:48:42","modified_gmt":"2022-10-21T11:48:42","slug":"how-to-setup-vnc-through-rdp-and-authenticate-through-ad","status":"publish","type":"post","link":"https:\/\/nicktailor.com\/tech-blog\/how-to-setup-vnc-through-rdp-and-authenticate-through-ad\/","title":{"rendered":"How to RDP to VNC and authenticate using AD (Redhat 6)"},"content":{"rendered":"

For this we will be setting up VNC server and XRDP which allow you to use windows remote desktop terminal services client to connect to your linux desktop as you would any windows machine with centralized authentication using Active directory.<\/p>\n

XRDP is a wonderful Remote Desktop protocol application that allows you to RDP to your servers\/workstations from any Windows machine, MAC running an RDP app or even Linux using an RDP app such as Remmina<\/a>. This was written for the new CentOS 6.5 on 64-bit but should work the same on any 6.x and 5.x Red Hat clone with the correct EPEL repositories.<\/p>\n

Virtual Network Computing (VNC<\/b>) is a graphical desktop sharing system that uses the Remote Frame Buffer protocol (RFB) to remotely control another computer. Essentially the Linux version of windows RDP.<\/p>\n

We are going to make them work together so you can RDP from your windows machine to you linux desktop as you would any other windows machine using a windows RDP service. It create an ssh tunnel inside the RDP protocol to get to the vnc server and then authenicate against the active directory domain controller so you dont need to create users individually for vncserver.<\/p>\n

First we need to download and install the EPEL repository for your correct version if you do now know what architecture you are using you can verify it with the below command. If the end shows x86_64 then you have a 64-bit install, if it shows i386 then it is a 32-bit install:<\/p>\n

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[root@server ~]<\/code># uname -r<\/code><\/div>\n
2.6.32-431.el6.x86_64<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

Once you determine your architecture then you can install the correct EPEL repository with the below commands:<\/p>\n

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RHEL\/CentOS 6 32-Bit<\/caption>\n
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wget http:<\/code>\/\/download<\/code>.fedoraproject.org<\/code>\/pub\/epel\/6\/i386\/epel-release-6-8<\/code>.noarch.rpm<\/code><\/div>\n
rpm -ivh epel-release-6-8.noarch.rpm<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
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RHEL\/CentOS 6 64-Bit<\/caption>\n
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wget http:<\/code>\/\/download<\/code>.fedoraproject.org<\/code>\/pub\/epel\/6\/x86_64\/epel-release-6-8<\/code>.noarch.rpm<\/code><\/div>\n
rpm -ivh epel-release-6-8.noarch.rpm<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

You can verify that the EPEL repository is there by running the below command and you should see the EPEL repository listed as you can see here in line #10 which is highlighted:<\/p>\n

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[root@server ~]<\/code># yum repolist<\/code><\/div>\n
Loaded plugins: fastestmirror, refresh-packagekit, security<\/code><\/div>\n
Loading mirror speeds from cached hostfile<\/code><\/div>\n
 <\/code>* base: mirror.thelinuxfix.com<\/code><\/div>\n
 <\/code>* epel: mirror.cogentco.com<\/code><\/div>\n
 <\/code>* extras: centos.mirror.nac.net<\/code><\/div>\n
 <\/code>* updates: centos.mirror.netriplex.com<\/code><\/div>\n
repo <\/code>id<\/code>                         repo name                                                               status<\/code><\/div>\n
base                            CentOS-6 - Base                                                          6,367<\/code><\/div>\n
epel                            Extra Packages <\/code>for<\/code> Enterprise Linux 6 - x86_64                          10,220<\/code><\/div>\n
extras                          CentOS-6 - Extras                                                           14<\/code><\/div>\n
updates                         CentOS-6 - Updates                                                         286<\/code><\/div>\n
repolist: 16,887<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n
<\/div>\n

Once you have verified the EPEL repository is installed correctly you need to perform the last few steps below this will install XRDP and Tiger VNC Server for you to connect to. The Front end of XRDP uses the RDP protocol and internally it uses VNC to connect and display the Remote Desktop to you.<\/p>\n

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[root@server ~]<\/code># yum install xrdp tigervnc-server<\/code><\/div>\n
[root@server ~]<\/code># service vncserver start<\/code><\/div>\n
[root@server ~]<\/code># service xrdp start<\/code><\/div>\n
[root@server ~]<\/code># chkconfig xrdp on<\/code><\/div>\n
[root@server ~]<\/code># chkconfig vncserver on<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n