Category: fedora

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How To Use Systemctl to Manage Systemd Services and Units

Introduction Systemd is an init system and system manager that is widely becoming the new standard for Linux machines. While there are considerable opinions about whether systemd is an improvement over the

Open Creativity !!! Fedora Design Suite Spin

Looking for a ready-to-go desktop environment brimming with free and open source multimedia production and publishing tools? Try the Design Suite, a Fedora Spin created by designers, for designers.

How to Install RHQ on CentOS 6.5

Install PosgreSQL 3.1.1. Type ‘yum install postgresql*’ making sure to include the asterisk (*) 3.1.2. Type ‘y’ when prompted (happens twice) Confirm java version 4.1.    Type ‘java –version’ 4.2.    Confirm it’s running at least 1.6 and using OpenJDK (or Oracle/Sun Java or JRockit, but NOT GNU Libgcj)

VPN CLIENT INSTALLATION on Linux

VPN INSTALLATION on Linux [[email protected] ~]# uname -a Linux app-01 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux [[email protected] /]# mkdir download [[email protected] /]# cd download/ [[email protected] download]# ll total 0 [[email protected] download]# mkdir vpn [[email protected] download]# cd vpn/ [[email protected] vpn]# ll total 0

How to verify DDOS attack with netstat command on Linux Terminal

How to verify DDOS attack with netstat command on Linux Terminal Some examples with explanation netstat -na This display all active Internet connections to the server and only established connections are included. netstat -an | grep :80 | sort

How to setup Network File Server on CentOS / Redhat with Automatic Backups — RackSpace

NFS SERVER SETUP ON CETNOS 6.5 / Redhat 6.5 / Fedora In this tutorial let us see how to install and configure NFS server and how to share files between NFS server and clients. Though i have tested these steps in Cent-OS 6.5 32 bit edition, it will work on RHEL/Fedora/ 64 bit architecture. Scenario NFS Server Operating System : CentOS 6.5 64 bit (Minimal server install) NFS Server Operating System  : CentOS 6.5 64 bit (Minimal server install) NFS Client Operating System  : CentOS 6.5 64 bit (Desktop Minimal) NFS Server IP Address              Host rackspace-nfs01: 192.168.58.152 NFS Server IP Address              Host rackspace-nfs02: 192.168.58.153 NFS Client IP Address               Host rackspace-jon: 192.168.58.154

How to recover RPMDB in RHEL / CentOS / Fedora

You can see below is the error while updating RHEL/CentOS/Fedora using yum update [[email protected] rpm]# yum update rpmdb: Thread/process 8367/457660786 failed: Thread died in Berkeley DB library error: db4 error(-41638) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recovery error: cannot open Packages index using db3 – (-30575) error: cannot open Packages database in /var/lib/rpm CRITICAL:yum.main:…
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Graylog2 Installation & Configuration for Log Management on CentOS /RHEL 6.x with MongoDB

Graylog2 is for data analysis Field-tested open source data analytics system used and trusted all around the world. Search your logs, create charts, send reports and be alerted when something happens. All running on the existing JVM in your datacenter. Features

Nagios Installation on Production server via Source code compilation

We have CentOS Linux Operating System as a Server OS [[email protected] nagios]# yum install httpd php gcc glibc glibc-common gd gd-devel [[email protected] nagios]# yum install httpd php gcc glibc glibc-common gd gd-devel openssl-devel wget perl make [[email protected] nagios]# /usr/sbin/groupadd -g 310 nagios [[email protected] nagios]# /usr/sbin/useradd -g 310 -u 310 -c “Nagios” -d /home/nagios nagios [[email protected] nagios]# passwd…
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Transparent Squid Cache Proxy Server Configuration in 5 easy steps on CentOS / RHEL / Fedora Core / Scientific Linux

Configure Transparent Squid cache proxy in 5 Easy Steps on CentOS RHEL Fedora Scientific Linux    Step 1 [[email protected] ~]#vim /etc/sysctl.conf # Controls IP packet forwarding net.ipv4.ip_forward = 1 #### If it is 0 make it 1 for packet forwarding #### wq! [[email protected] ~]#sysctl -p