How-to change SSH port number in RHEL-7
SSH is a networking protocol used for accessing the CLI(shell) remotely with applications. In RHEL7, ssh will be by default running as a daemon service called sshd in port 22. In this blog i want to show you how to secure the ports of SSH by changing it.
Notes – Active Directory | Domain | Domain Controller
Active Directory It is a Microsoft based service which provides Centralized Database for the domain. The database is called NTDS. Domain A Collection of Users, Computers, Groups, Servers and other network resource use common NTDS Database in an organization. This organization is called as Domain. Domain Controller A computer running with Active Directory Services that
CDP
CDP (Cisco Discovery Protocol) is a proprietary protocol designed by Cisco System for Cisco devices. CDP helps administrators in collecting information about cisco devices. In this article we will explain CDP protocol in details.
Backdoor in BGP
This article help you to understand how Backdoor option works in BGP. Generally, Backdoor is a term which technically describes – Bypassing security mechanism to access a Resources. But in BGP it refers to a different thing. Before understanding the BGP Backdoor, We need to understand some Routing Concept and Protocols. BGP is a routing protocol
Difference Between Object Based NAT and Table Based NAT in Checkpoint
This article discusses about the difference between the 2 type of NAT which can be configured in the checkpoint firewall. NAT is a idea of translating IP address in the IP packet and mainly used to provide communication between Private network to Public network. This NAT can be configured in so many devices i.e. router,
Managing the Check Point Firewall Rule Base
These are the fields that manage the rules for the Firewall security policy. No. : Rule number in the Firewall Rule Base. Implied rules do not have a number. Hits : Number of connections that match this rule. Name : Name that the system administrator gives this rule. Source Network : Object that starts the
Virtual Machine Migration in Hyper-V
Hyper-V role migration involves moving the virtual machines, virtual networks, and all the associated settings from one physical computer to another physical computer in the enterprise. The process supports moving from a server running Hyper-V in Windows Server 2012 to a server running Hyper-V in Windows Server 2012 R2. The Hyper-V role does not depend on any other roles.
DHCP Scope Spliting
This step-by-step guide contains an introduction to using DHCP with a split scope on a secondary server, with delay, and instructions for setting up a test lab using two DHCP servers and one DHCP client. Requirements of DHCP Scope Splitting.
Private VLAN in Cisco
To divide broadcast domain we know there is a concept called VLAN. But if we are using Private VLAN we can isolate each ports connected to users in the same VLAN and still they can communicate to there up-link.
Web GUI on Cisco switch
We all know how easy it is to work with Cisco CLI. It feels natural once you get used to it. But not many know that there is a webpage based GUI to manage Cisco Catalyst Switch. Albeit simple they provide easy to use interface for novices who do not know the CLI. This is a how-to article to help you enable and start using the web based GUI.