≡ Menu

RHEL Howtos and Guides

Red Hat Enterprise Linux server tutorial for new and advanced users. Topic includes RHEL firewall, package management, Red Hat server security, various server configuration, mail-server, web-server, proxy-server, intrnet-server, file server and much more ( rss feed ).

How To Install Google Chrome 45 On a RHEL/CentOS 7 and Fedora Linux 22 Using Yum Command

How do I installed the latest version of Google Chrome v45 on a Red Hat Enterprise Linux or CentOS Linux version 7.x and Fedora Linux v22 using the yum command line option?
[click to continue…]

How To Join Several Partition Together To Form a Single Larger One On a Linux Using mhddfs

I‘ve three old hard drives: sized 60, 60 and 120 GB. And 200 GB of video files, which I need to store on these drives. How would I store all my files on three hard drive without split a file into pieces or creating RAID array? How can I combines a several mount points (partitions) into the single one on a Linux operating systems?
[click to continue…]

How to update Debian or Ubuntu Linux containers (lxc) VM

I‘m using LXC (Linux Containers) a virtualization system running on a Ubuntu LTS. How can I update all my Ubuntu or Debian Linux based guests containers VM from host operating system?
[click to continue…]

A very serious security problem has been found in the virtual floppy drive QEMU’s code used by many computer virtualization platforms including Xen, KVM, VirtualBox, and the native QEMU client. It is called VENOM vulnerability. How can I fix VENOM vulnerability and protect my Linux server against the attack? How do I verify that my server has been fixed against the VENOM vulnerability?
[click to continue…]

How To CentOS / RHEL 7 Install Gnome Desktop Using Yum

I installed minimal CentOS Linux 7.x on my laptop. How can I install Gnome desktop GUI on a RHEL (Red Hat) 7 or CentOS Linux 7 system using command line option?
[click to continue…]

RHEL / Centos Linux 7: Change and Set Hostname Command

I‘m a new RHEL (Red Hat Linux) and/or CentOS Linux 7 server user. How can I change the hostname in CentOS 7 using a command line option?
[click to continue…]

CentOS/RHEL Use yum Command To Downgrade or Rollback Updates

I‘m a CentOS Linux 7.x server user. How can I use yum command to downgrade or rollback package updates on a RHEL (Red Hat)/CentOS/Scientific Linux server?
[click to continue…]

RHEL / CentOS Linux 7 Enable Ping Access In Docker Container

I’m using RHEL 7.1-4 container on a RHEL /CentOS Linux 7.x server. However, I’m unable to ping external site/IP address using the ping command. I’m getting the following error on screen:

ping: Operation not permitted

How do I fix this problem?
[click to continue…]

HowTo Debian/Ubuntu Linux Auto Mount Windows NTFS File System [ntfs-3g]

I‘m dual booting MS-Windows with a Debian / Ubuntu Linux desktop. How can I auto mount a drive containing a MS-Windows NTFS file system on a Linux based systems?
[click to continue…]

On 19th March 2015, multiple high and moderate severity level vulnerabilities released in OpenSSL, a Secure Sockets Layer toolkit used in a Linux and Unix-like systems. How can I fix these vulnerabilities on a CentOS/RHEL/Ubuntu and Debian Linux based server for OpenSSL versions 1.0.2a, 1.0.1m, 1.0.0r, and 0.9.8zf.? How do I verify that my Linux server has been fixed against the OpenSSL vulnerability?
[click to continue…]