MariaBD Installation And Management in RHEL 7

MariaBD Installation And Management in RHEL 7 Required packages. [root@feenixdv77 ~]# yum install mariadb-* Start service and check status. [root@feenixdv77 ~]# systemctl start mariadb [root@feenixdv77 ~]# systemctl status mariadb mariadb.service – MariaDB database server    Loaded: loaded (/usr/lib/systemd/system/mariadb.service; disabled)    Active: active (running) since Thu 2016-12-22 09:48:54 EST; 12s ago […]

Apache configuration in RHEL 7

Apache configuration in RHEL 7 Check “httpd” installed or not. [root@feenixdv77 ~]# yum install httpd Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile Package httpd-2.4.6-31.el7.centos.x86_64 already installed and latest version   Start apache service and check status of service. [root@feenixdv77 ~]# systemctl start httpd [root@feenixdv77 ~]# systemctl status […]

VNC configuration on RHEL 7

VNC configuration on RHEL 7 1st install prerequisite package on server. ·         tigervnc ·         tigervnc-server [root@feenixdv77 system]# yum install tigervnc tigervnc-server –y Create user for remote access. [root@feenixdv77 ~]# adduser vncuser [root@feenixdv77 ~]# passwd vncuser Changing password for user vncuser. New password: BAD PASSWORD: The password is shorter than 8 […]

LUN Creation using iSCSI

  Centralized Secure Storage using iSCSI   iSCSI is a block level Protocol for sharing RAW Storage Devices over TCP/IP Networks, Sharing and accessing Storage over iSCSI, can be used with existing IP and Ethernet networks such as NICs, Switched, Routers etc. iSCSI target is a remote hard disk presented […]

Set Hostname

Modifying the system hostname The host namectl command is used to modify this file and may be used to view the stat us of the system’s fully qualified hostname. Important:-The static hostname is stored in /etc/host name. Previous versions of Red Hat Enterprise Linux stored the host name as a […]

Run Level in RHEL 7

How to set default target (default runlevel) The conventional way used to change runlevel using /etc/inittab has become obsolete with Redhat Enterprise Linux version 7. As a result any Linux system using systemd system management daemon now relies on systemctl command to change runlevel or to be more precise to […]

Booting process of RHEL 7

Booting process in RHEL 7 Process step by step 1.    BIOS/UEFI The machine is powered on. The system firmware (either modern UEFI or more old BIOS) runs a Power on Self-Test (P OST), and starts to initialize some of the hardware.   2.    Grub2 The system firmware reads a boot […]

SELINUX: Use Boolean Settings

SELINUX: Use boolean settings to modify system SELinux settings.   SELinux uses booleans to makes its policy more flexible. The basic policy is pretty strict but suits most requirements. But if you’ve got special needs, you can easily adjust it thanks to the SELinux booleans.   For a list of […]

SELinux in RHEL7

SELinux Permissive mode is often used to trouble shoot issues.  In permissive mode, SELinux allows all interact ions,  even  if there  is no  explicit  rule ,  and  it  logs those  interactions it would have  denied in  enforcing  mode. This mode can be used to temporarily allow access to content that […]