“VPN TYPES” Virtual private network technology is based on the idea of tunneling. VPN tunneling involves establishing and maintaining a logical network connection (that may contain intermediate hops). On this connection, packets constructed in a specific VPN protocol format are encapsulated within some other base or carrier protocol, then transmitted between VPN client and server, … Read more
“INTRODUCTION TO VPN” Tremendous strides in computer networking have increased the productivity of todays workers in todays workplace. The security risk in networking today has also grown. VPN routing uses virtual connections (instead of the traditional dialed line or a leased line) to connect users in remote offices to a private network over a public … Read more
What is squid? Many of you are using Squid without even knowing it! Some companies have embedded Squid in their home or office firewall devices, others use Squid in large-scale web proxy installations to speed up broadband and dial up internet access. Squid is being increasingly used in content delivery architectures to deliver static and … Read more
In this article we will learn about step by step installation and configuration of LDAP. To learn about Basic of LDAP, Click here. http://blog.eduguru.in/ldap-basic-of-open-ldap-introduction-to-ldap/ Install Open LDAP: # yum install *openldap* -y Start the Services: # chkconfig –levels 235 ldap on # service ldap start Create LDAP root user password: # slappasswd New password: Re-enter new … Read more
What is LDAP? LDAP stands for Lightweight Directory Access Protocol. As the name suggests, it is a lightweight client-server protocol for accessing directory services, specifically X.500-based directory services. LDAP runs over TCP/IP or other connection oriented transfer services. X.500 is a model for Directory Services in the OSI concept. It contains namespace definitions and the … Read more
What is Sendmail? Sendmail is a mail server used for sending and receiving mails. It works on SMTP (Simple Mail Transfer Protocol ) protocol on port 25. Most of users are familier with sendmail and want to use it also. This article will help that users for installing sendmail server on RHEL 6 or with minimal … Read more
In the previous post we have already completed the first step to install Nagios core service, Now in this article we will learn about installation of Nagios web administration tool. Step 1: Install Required Packages First we need to install required packages, Use the following commands to install them. # yum install libssh2 libssh2-devel mysql … Read more
What is Nagios? Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes. It has the capability of monitoring application, services, entire IT infrastructure. It has been designed with scalability and flexibility in mind, Nagios gives you the peace of mind that comes from … Read more