Category: CentOS

Assign the correct time zone on CentOS 7

How to set time zone on CentOS 7 Assigning correct time zone is very simple process using timedatectl command on CentOS 7 system. 1. First lets review current settings # timedatectl Local time: Tue 2016-02-23 08:47:03 EST Universal time: Tue 2016-02-23 13:47:03 UTC RTC time: Tue 2016-02-23 08:47:52 Time zone: America/Toronto (EST, -0500) NTP enabled:

How to find php script that sends mail from your linux system

We run into a problem where customers Linux vm was sending a lot of unwanted messages. In order to troubleshoot this problem we did 2 things. Instructions below are for CentOS 6 and 7 but will also work on other distributions with minor configuration changes. Option 1

Installing OSSEC 2.8.3 on CentOS 7 Client Server mode

In this how to we will be installing OSSEC Host based intrusion detection system on CentOS 7. We will be using clinet/server deployment which is recomended way to deploy OSSEC on the network where more then one system will be monitored.

Secure OpenSSH with Key based authentication and TCP Wrappers

SSH-Secure Shell was created to provide secure mechanism for data transfer between source and destination hosts on IP based network. SSH uses encryption techniques and digital signatures data checking to ensure security of data being transferred. OpenSSH is free and open source. It also supports additional features like tunnelling, TCP port forwarding and X11 forwarding.

Creating Local Yum Repository on RED HAT or CentOS

Lets look at the steps required to setup local yum repository. We will create local repo called demolocal. We will then copy single package iperf3-3.0.11-1.fc22.x86_64.rpm as an example and install it from our demolocal repo.

Deploy Ulteo 4.0.2 on CentOS 6.7 in multi server setup

Ulteo Open Virtual Desktop (OVD) is a delivery platform that provides on-demand access to virtual desktops and applications from public and private cloud hosted environments. Ulteo OVD supports Windows Remote Desktop Services and Linux hosted desktop and application sessions. Ulteo Website In this how-to we will be installing Ulteo on CentOS 6.7. We will have

Install MialWatch on CentOS 7 with postfix as MTA

MailWatch is a great web based application utilizing LAMP stack. It allows you to easily manage and monitor MailScanner gateway. We will be adding MailWatch install to existing MailScanner setup Prerequisites Working MailSanner installation. How to Install MailScanner Install LAMP and additional PHP and Perl requirements Make sure php.ini has correct settings