Install Remote Desktop (RDP)

rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
yum -y install xrdp
systemctl start xrdp
systemctl enable xrdp
firewall-cmd --permanent --add-port=3389/tcp
firewall-cmd --reload
chcon --type=bin_t /usr/sbin/xrdp
chcon --type=bin_t /usr/sbin/xrdp-sesman

Troubleshooting

netstat -antup | grep xrdp

Install VNC Server

$ sudo yum install tigervnc-server

$ vncserver

Warning: blackberry:1 is taken because of /tmp/.X1-lock
Remove this file if there is no X server blackberry:1

New 'blackberry:2 (frank)' desktop is blackberry:2

Starting applications specified in /home/frank/.vnc/xstartup
Log file is /home/frank/.vnc/blackberry:2.log

su -
systemctl daemon-reload
systemctl enable vncserver@:1.service
reboot
systemctl start vncserver@:1.service

Troubleshooting

sudo systemctl status vncserver@:.service

Problem

Apr 06 13:52:19 blackberry systemd[1]: Starting Remote desktop service (VNC)...
Apr 06 13:52:19 blackberry systemd[2635]: Failed at step USER spawning /usr/bin/vncserver: No such process

$> journalctl -xe

-- Unit vncserver@:4.service has begun starting up.
Apr 06 14:20:17 blackberry vncserver[3015]: Can't find file /home/frank/.vnc/blackberry:4.pid
Apr 06 14:20:17 blackberry vncserver[3015]: You'll have to kill the Xvnc process manually
Apr 06 14:20:17 blackberry runuser[3022]: runuser: may not be used by non-root users
Apr 06 14:20:17 blackberry systemd[1]: vncserver@:4.service: control process exited, code=exited status=1
Apr 06 14:20:17 blackberry systemd[1]: Failed to start Remote desktop service (VNC).
-- Subject: Unit vncserver@:4.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit vncserver@:4.service has failed.
--
-- The result is failed.
Apr 06 14:20:17 blackberry systemd[1]: Unit vncserver@:4.service entered failed state.
Apr 06 14:20:17 blackberry systemd[1]: vncserver@:4.service failed.
Apr 06 14:20:17 blackberry polkitd[1026]: Unregistered Authentication Agent for unix-process:3008:112981 (system b
lines 3231-3253/3253

Solution

The post Setup new CentOS 7 dev machine appeared first on Techy Things.

cc1plus: error: unrecognized command line option "-std=c++11"

Solution

scl enable devtoolset-2 bash

or

scl enable devtoolset-3 bash

The post cc1plus: error: unrecognized command line option "-std=c++11" appeared first on Techy Things.

http://tech.yipp.ca/linux/adding-epel-repo-centos-6-8/

2. Install openvpn

$> sudo yum install openvpn

3. Find the proper configuration, run VPN client using this command

$> sudo openvpn --config myconfig.conf

The post Install OpenVPN on CentOS 6.8 appeared first on Techy Things.

curl --silent --location https://rpm.nodesource.com/setup | sudo bash -

## Run `yum install -y nodejs` (as root) to install Node.js v0.10 and npm.
You may also need development tools to build native addons:
`yum install -y gcc-c++ make`

Done!

The post Install Node.js on CentOS 6 or 7 appeared first on Techy Things.

Solution
#!/bin/bash

The post error: drm/drm.h: No such file or directory appeared first on Techy Things.

1. Install the nux repo

Instructions to install the nux repo in CentOS 7 is here

2. Install the necessary packages

$> yum --enablerepo=nux-dextop install fontconfig-infinality

The post Improve fonts on CentOS 7 appeared first on Techy Things.

$> su -
$> cd 
$> wget https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
$> rpm -ivUh epel-release-7-5.noarch.rpm
$> yum install ntfs-3g

The post Install NTFS on CentOS 7 appeared first on Techy Things.

• undefined reference to `udev_enumerate_scan_devices'
• undefined reference to `udev_new'
• undefined reference to `udev_list_entry_get_name'
• undefined reference to `udev_enumerate_get_list_entry'
• undefined reference to `udev_list_entry_get_next'
• undefined reference to `udev_device_new_from_syspath'
• undefined reference to `udev_monitor_receive_device'

Solution:

 $> sudo yum install systemd-devel.i686

or

 $> sudo yum install systemd-devel-208-11.el7_0.6.i686
(at the time of writing)

The post undefined reference to `udev_enumerate_new' appeared first on Techy Things.

Solution (tested on CentOS 7)

$> sudo yum install mesa-libGL-devel

The post fatal error: GL/glx.h: No such file or directory appeared first on Techy Things.

Solution :

Type in console :

$> gconftool-2 --type bool --set /apps/nautilus/preferences/show_desktop false

This will resolve the problem!

Why does it happens ?

This is because I have more than one video card & monitor connected to my PC. However I'm only using one when booting CentOS.

By the way I cannot get the other one to function.

The post "Starting file manager" always opening in CentOS appeared first on Techy Things.