Urdu CBT Linux System Administration 005 – BIND DNS 5/6

This CBT shows how to configure BIND domain name server (DNS) on CENTOS through CLI. Valid for Fedora, RHEL, CENTOS, and any other distribution derived from these.
Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

Urdu CBT Linux System Administration 005 BIND DNS 3/6

This CBT shows how to configure BIND domain name server (DNS) on CENTOS through CLI. Valid for Fedora, RHEL, CENTOS, and any other distribution derived from these.
Author: Muhammad Kamran Azeem
Courtesy: http://wbitt.com

….HOW TO VLAN USING LINUX DISTRO….

Setting up 802.1q VLAN tagging by loading 8021q Linux kernel driver

Check that Linux kernel driver module called 8021q is loaded:
# lsmod | grep 8021q
If it is not loaded, load it with the following modprobe command:
# modprobe 8021q

How to VLAN Linux usingCentOS/RHLE/Fedora Linux

I am using RHEL/CentOS Linux with VLAN ID # 5. So I need to copy file /etc/sysconfig/network-scripts/ifcfg-eth0 to /etc/sysconfig/network-scripts/ifcfg-eth0.5
# cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0.5
Now, I’ve one network card (eth0) and it needs to tagged network traffic for VLAN ID 5.

  • eth0 – Your regular network interface
  • eth0.5 – Your virtual interface that use untagged frames

Continue reading “….HOW TO VLAN USING LINUX DISTRO….”

Linux Find Out CPU Architecture Information

How do I find out my CPU architecture information under Linux operating systems?

You can use /proc/cpuinfo file or use the lscpu command to get info about CPU architecture. It will display information like:

Number of CPUs
Threads
Cores
Sockets
NUMA nodes

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