In this post we will install Tiger VNC
server in linux system. I’ll show everything according to my system RHEL 7.
At first you need yum package “tigervnc-server.x86_64”
Now confirm you have root access. Then
follow below steps and details.
[root@reyaz
appsdba]# yum install tigervnc-server.x86_64
Installing yum package…….Loaded plugins: langpacks, product-id, subscription-managerThis system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.ol7_UEKR5 | 1.2 kB 00:00:00ol7_addons | 1.2 kB 00:00:00ol7_latest | 1.4 kB 00:00:00(1/2): ol7_latest/x86_64/updateinfo | 784 kB 00:00:12(2/2): ol7_latest/x86_64/primary | 11 MB 00:01:47ol7_latest 12163/12163Resolving Dependencies--> Running transaction check---> Package tigervnc-server.x86_64 0:1.8.0-13.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved=========================================================================================================================Package Arch Version Repository Size=========================================================================================================================Installing:tigervnc-server x86_64 1.8.0-13.el7 ol7_latest 214 kTransaction Summary=========================================================================================================================Install 1 PackageTotal download size: 214 kInstalled size: 509 kIs this ok [y/d/N]: yDownloading packages:warning: /var/cache/yum/x86_64/7Server/ol7_latest/packages/tigervnc-server-1.8.0-13.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEYPublic key for tigervnc-server-1.8.0-13.el7.x86_64.rpm is not installedtigervnc-server-1.8.0-13.el7.x86_64.rpm | 214 kB 00:00:04Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracleImporting GPG key 0xEC551F03:Userid : "Oracle OSS group (Open Source Software group) <build@oss.oracle.com>"Fingerprint: 4214 4123 fecf c55b 9086 313d 72f9 7b74 ec55 1f03Package : 7:oraclelinux-release-7.6-1.0.15.el7.x86_64 (@ol7_latest)From : /etc/pki/rpm-gpg/RPM-GPG-KEY-oracleIs this ok [y/N]: yRunning transaction checkRunning transaction testTransaction test succeededRunning transactionInstalling : tigervnc-server-1.8.0-13.el7.x86_64 1/1Verifying : tigervnc-server-1.8.0-13.el7.x86_64 1/1Installed:tigervnc-server.x86_64 0:1.8.0-13.el7Complete![root@reyaz appsdba]#
Installation of yum package complete.
Setup vnc server configuration file.
Copy vncserver file
[root@reyaz ~]# cp
/lib/systemd/system/vncserver@.service etc/systemd/system/vncserver@:1.service
[root@reyaz ~]#
Now edit the file to change username. Use
the username that you have. In this case I have the username “appsdba”. To know
how to create user please follow my another blog post here.
[root@reyaz ~]# vi /etc/systemd/system/vncserver@:1.service
# The vncserver service unit file## Quick HowTo:# 1. Copy this file to /etc/systemd/system/vncserver@.service# 2. Replace <USER> with the actual user name and edit vncserver# parameters appropriately# (ExecStart=/usr/sbin/runuser -l <USER> -c "/usr/bin/vncserver %i"# PIDFile=/home/<USER>/.vnc/%H%i.pid)# 3. Run `systemctl daemon-reload`# 4. Run `systemctl enable vncserver@:<display>.service`## DO NOT RUN THIS SERVICE if your local area network is# untrusted! For a secure way of using VNC, you should# limit connections to the local host and then tunnel from# the machine you want to view VNC on (host A) to the machine# whose VNC output you want to view (host B)## [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB# this will open a connection on port 590N of your hostA to hostB's port 590M# (in fact, it ssh-connects to hostB and then connects to localhost (on hostB).
# See the ssh man page for details on port forwarding)
#
# You can then point a VNC client on hostA at vncdisplay N of localhost and with
# the help of ssh, you end up seeing what hostB makes available on port 590M
#
# Use "-nolisten tcp" to prevent X connections to your VNC server via TCP.
#
# Use "-localhost" to prevent remote VNC clients connecting except when
# doing so through a secure tunnel. See the "-via" option in the
# `man vncviewer' manual page.
[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target
[Service]
Type=forking
# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/usr/sbin/runuser -l appsdba -c "/usr/bin/vncserver %i"
PIDFile=/home/appsdba/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
[Install]
WantedBy=multi-user.target
Save and exit.
in above I have added my username "appsdba".
Now wrok with Firewall
[root@reyaz ~]# firewall-cmd
--permanent --zone=public --add-service vnc-server
success
[root@reyaz ~]#
[root@reyaz ~]# firewall-cmd --reload
success
[root@reyaz ~]#
Change user access to start vncserver
[root@reyaz ~]# su appsdba
[appsdba@reyaz root]$ vncserver
You will require a password to access
your desktops.
Password:
Verify:
New 'reyaz.xyz.com:1 (appsdba)' desktop
is reyaz.xyz.com:1
Creating default startup script
/home/appsdba/.vnc/xstartup
Creating default config
/home/appsdba/.vnc/config
Starting applications specified in
/home/appsdba/.vnc/xstartup
Log file is
/home/appsdba/.vnc/reyaz.xyz.com:1.log
[appsdba@reyaz root]$
If required use this command after restart
your system.
[root@reyaz ~]# systemctl start vncserver@:1.service
Done.......
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