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Authentication is required to create a color managed device in XRDP

Software Effect Enterprises, Inc Posted on May 12, 2017 by SEEIMay 12, 2017

Authentication is required to create a color managed device The error sometimes seen in CentOS 7.x remote connect via xRDP.   Workaround Add the following content to file allow-colord.pkla File /etc/polkit-1/localauthority/50-local.d/allow-colord.pkla [Allow colord for all users] Identity=unix-user:* Action=org.freedesktop.color-manager.create-device;org.freedesktop.color-manager.create-profile;org.freedesktop.color-manager.delete-device;org.freedesktop.color-manager.delete-profile;org.freedesktop.color-manager.modify-device;org.freedesktop.color-manager.modify-profile ResultAny=yes ResualtInactive=auth_admin … Continue reading →

Posted in Centos 7

Replace firewalld with iptables in CentOS 7

Software Effect Enterprises, Inc Posted on February 1, 2016 by SEEIMay 10, 2017

Firewalld is a pain to set up. To switch to iptables: yum -y install iptables-services If you would like to save the firewall rules you need to run the following command iptables-save > /root/iptables-rules.txt These rules can be added to … Continue reading →

Posted in Centos 7

Laptop will not suspend when lid is closed in Gnome 3

Software Effect Enterprises, Inc Posted on April 22, 2017 by SEEIApril 22, 2017

Check these two items in the /etc/systemd/logind.conf PowerKeyIgnoreInhibited=yes SuspendKeyIgnoreInhibited=yes Tested with Centos 7

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Posted in Centos 7

XRDP service wont start on Centos 7

Software Effect Enterprises, Inc Posted on April 7, 2017 by SEEIApril 7, 2017

You execute: systemctl start xrdp and the service does not start and you find the following in the messages log Apr 7 16:01:22 myserver systemd: Started xrdp session manager. Apr 7 16:01:22 myserver systemd: Starting xrdp session manager… Apr 7 … Continue reading →

Posted in Centos 7

Erasing partition table and raid information from hard drives using Centos 7

Software Effect Enterprises, Inc Posted on February 13, 2017 by SEEIFebruary 13, 2017

Some RAID Controllers, many fake RAID controllers and software raid put a signature on both the beginning and/or ending of the space on a hard drives. This many times creates problems when reformatting the drives or reloading the system after … Continue reading →

Posted in Centos 7

Using UUID to Mount Disk

Software Effect Enterprises, Inc Posted on July 5, 2016 by SEEIJuly 5, 2016

In linux, hard drive dev assignments can get changed between reboots – especially with external/removable drives. This means using /dev/sdX or /dev/hdX is not the best way to mount a drive that needs to be mounted every time at boot. … Continue reading →

Posted in Centos, Centos 6, Centos 7, Fedora, Linux

“Created slice user-0.slice.” and “Starting Session 6642 of user root.” in /var/log/messages

Software Effect Enterprises, Inc Posted on February 25, 2016 by SEEIFebruary 25, 2016

I found the following entries in my /var/log/messages file Feb 21 03:50:01 vm1 systemd: Created slice user-0.slice. Feb 21 03:50:01 vm1 systemd: Starting Session 6642 of user root. Feb 21 03:50:01 vm1 systemd: Started Session 6642 of user root. These … Continue reading →

Posted in Centos 7

Cisco AnyConnect Client Wont Run On Centos 7

Software Effect Enterprises, Inc Posted on December 17, 2015 by SEEIDecember 17, 2015

You start AnyConnect on Centos 7 using the shortcut and the application flashes on the screen and disappears. So you try running it from the bash prompt and you get: [user@mymachine ~]$ /opt/cisco/anyconnect/bin/vpnui /opt/cisco/anyconnect/bin/vpnui: error while loading shared libraries: libpangox-1.0.so.0: … Continue reading →

Posted in Centos 7

Security Wipe Of Hard Drive Using Linux

Software Effect Enterprises, Inc Posted on December 4, 2015 by SEEIDecember 4, 2015

first – determine the dev of the hard drive – as in /dev/sda /dev/sdb etc Then excute shred -vz -n 3 /dev/XXX where XXX is the identifier of the hard drive Increase 3 to a larger value for higher security … Continue reading →

Posted in Centos, Centos 6, Centos 7, Fedora, Linux

semanage is not installed

Software Effect Enterprises, Inc Posted on November 10, 2015 by SEEINovember 10, 2015

semanage is used in configuring selinux. If it is not installed you need to run yum -y install policycoreutils-python

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Posted in Centos, Centos 6, Centos 7

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