How to install VirtualBox on Macbook Air M1/M2

 

How to hide identity completely using Kali Linux

 How to hide identity completely using Kali Linux

How to Secure your website using Web Application Firewall

 

How to Assign IP Address Linux in RHEL 5 & RHEL 6

In this Tutorial I am going to show how to assign Permanent IP Address in Linux. Specially RedHat and CentOS 5 Linux.

 First you have to do is to Log on as root user and go to the Directory  /etc/sysconfig/network-scripts/ to view all available devices.

    # cd /etc/sysconfig/network-scripts/

You need to edit following files:

    /etc/sysconfig/network-scripts/ifcfg-eth0 ( First Ethernet card configuration file)
    /etc/sysconfig/network-scripts/ifcfg-eth1  ( Second Ethernet card configuration file)

To edit/create first NIC file, type command:

    # vim ifcfg-eth0

Append/modify as follows:

    DEVICE=eth0
    BOOTPROTO=static
    DHCPCLASS=
    HWADDR=00:30:48:56:A6:2E
    IPADDR=192.168.1.100
    NETMASK=255.255.255.0
    ONBOOT=yes

Save and close the file. (:wq!)

After that, configure the default gateway (router IP) and hostname in /etc/sysconfig/network file:

    # vim /etc/sysconfig/network

Append/modify configuration as follows:

    NETWORKING=yes
    HOSTNAME=opesource
    GATEWAY=192.168.1.1

Save and close the file(:wq!). Restart networking by enter following command:

    # /etc/init.d/network restart

Make sure you have correct DNS server defined in /etc/resolv.conf file:

    # vi /etc/resolv.conf

Setup DNS Server as follows:

    nameserver  8.8.8.8
    nameserver  8.8.4.4

Save and close the file(:wq!). Now you can check(ping) the gateway/other hosts:

     # ping 192.168.1.1          (check network connection)
   
    #ping www.google.com    (check Internet connection )

IF You want to assign temporary ip address then Log on as root user and run the below command.
#ifconfig eth0:0 192.168.1.101 netmask 255.255.255.0
#ifconfig eth0:1 192.168.1.102 netmask 255.255.255.0

DNS Configuration on Cisco Router

This tutorial is all about how to configure DNS on Cisco Router.
I have used GNS3 software to show DNS Configuration on Cisco router.





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100 Web Vulnerabilities you should know as a Web application Penetration Tester

100 Web Vulnerabilities you should know as a Web application Penetration Tester If you are working as web application penetration testing en...