{"id":29,"date":"2014-11-24T04:09:00","date_gmt":"2014-11-24T04:09:00","guid":{"rendered":"http:\/\/www.asianux.org.vn\/index.php\/2014\/11\/24\/how-to-install-vnc-on-centos-6\/"},"modified":"2014-11-24T04:09:00","modified_gmt":"2014-11-24T04:09:00","slug":"how-to-install-vnc-on-centos-6","status":"publish","type":"post","link":"https:\/\/www.asianux.org.vn\/index.php\/2014\/11\/24\/how-to-install-vnc-on-centos-6\/","title":{"rendered":"How to install vnc on centos 6"},"content":{"rendered":"

VNC server<\/h1>\n

VNC is used to display X windows sessions on remote computers.In this tutorial, we can learn how to setup VNC server on centos 6. Desktop environment is required in order to enable VNC server on centos.<\/span><\/h1>\n

Install VNC on Centos 6<\/h1>\n
Before installing VNC server, make sure you have installed any Desktop environment.
Step 1 \u00bb<\/strong> Issue the below command to install gnome desktop environment.
[root@krizna ~]# yum groupinstall Desktop<\/code>
Step 2 \u00bb<\/strong> After installing gnome packages .Issue the below command to install VNC package along with dependencies.
[root@krizna ~]# yum -y install tigervnc-server pixman pixman-devel libXfont<\/code>
Step 3 \u00bb<\/strong> Create user name and password.
[root@krizna ~]# adduser user1
[root@krizna ~]# adduser user2
[root@krizna ~]# passwd user1
[root@krizna ~]# passwd user2<\/code>
Step 4 \u00bb<\/strong> Create VNC passwords for the Users created.
[root@krizna ~]# su - user1
[user1@krizna ~]$ vncpasswd
Password:
Verify:
[user1@krizna ~]$ logout
[root@krizna ~]# su - user2
[user2@krizna ~]$ vncpasswd
Password:
Verify:
[user2@krizna ~]$ logout<\/code>
Step 5 \u00bb<\/strong> Now open \/etc\/sysconfig\/vncservers<\/strong> file and add the following lines at the end of the file( Edit as per your usernames ).
VNCSERVERS=\"1:user1 2:user2\"
VNCSERVERARGS[1]=\"-geometry 640x480\"
VNCSERVERARGS[2]=\"-geometry 800x600\"<\/code>
Here we have configured session 1 with 640\u00d7480 resolution for the user \u201cuser1\u2033 and session 2 with 800\u00d7600 resolution for the user \u201cuser2\u2033.
Step 6 \u00bb<\/strong> Start vnc service
[root@krizna ~]# service vncserver start<\/code>
and issue this command to start vnc service automatically during startup.
[root@krizna ~]# chkconfig --levels 235 vncsever on<\/code>
Step 7 \u00bb<\/strong> Now in remote machine, start vncviewer type the IP and session as below to view their respective sessions.
192.168.1.10:1 for user1
192.168.1.10:2 for user2<\/code>
\"install<\/a>
Users sessions<\/strong>.
\"install<\/a><\/div>\n

Troubleshooting<\/h1>\n
\u00bb Check the iptables in the server, if you are not able to connect the sessions.
Issue the below command to stop iptables service.
[root@krizna ~]# service iptables stop<\/code>
try again.
\u00bb you might receive the below error while starting the vnc service.
\/usr\/bin\/Xvnc: symbol lookup error: \/usr\/bin\/Xvnc: undefined symbol: pixman_composite_trapezoids
\/usr\/bin\/Xvnc: symbol lookup error: \/usr\/bin\/Xvnc: undefined symbol: pixman_composite_trapezoids<\/code><\/div>\n
[FAILED]<\/code>
Issue the below command to install pixman,pixman-devel and libXfont packages.
[root@krizna ~]# yum -y pixman pixman-devel libXfont<\/code>
[or]
This command will update everything .
[root@krizna ~]# yum update<\/code>
and restart the VNC service and try again.<\/div>\n","protected":false},"excerpt":{"rendered":"

VNC server VNC is used to display X windows sessions on remote computers.In this tutorial, we can learn how to setup VNC server on centos 6. Desktop environment is required in order to enable VNC…<\/p>\n","protected":false},"author":1,"featured_media":75,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,8],"tags":[],"class_list":["post-29","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","category-monitoring"],"_links":{"self":[{"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":0,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/posts\/29\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/media?parent=29"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/categories?post=29"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.asianux.org.vn\/index.php\/wp-json\/wp\/v2\/tags?post=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}