Definition of RAID

– RAID (redundant array of independent disks; originally redundant array of inexpensive disks) is a way of storing the same data in different places (thus, redundantly) on multiple hard disks. By placing data on multiple disks, I/O (input/output) operations can overlap in a balanced way, improving performance. Since multiple disks increases the mean time between failures (MTBF), storing data redundantly also increases fault tolerance.

Cara mudah install bind Centos

Nota sendiri buat bind kat centos.

Another resource = Pisang Raja Udang @ pru ( tempat refer macam google; p/s terima kasih kerana selalu susah dengan aku :D )

Build DNS server which resolves domain name or IP address. Install bind and caching-nameserver for it. And it’s also neccessary to configure router so that TCP and UDP packets to 53 can pass through.

[root@ns ~]# yum -y install bind caching-nameserver

Here is an example to configure BIND with named.conf.
This example is done with grobal IP address [172.16.0.80/29], Private IP address [192.168.0.0/24], Domain name [syiron.org.kg]. However, Please use your own IPs and domain name when you set config on your server. ( Actually, [172.16.0.80/29] is for private IP address, though. )

YUM install package from cdrom

 

 

yum (Yellow dog Updater Modified) is a package manager for RPM compatible Linux systems such as CentOS, Fedora core and latest Redhat Enterprise Linux.

So how do you use yum to update / install packages from an ISO of CentOS / FC / RHEL CD?

Creation of yum repositories is handled by a separate tool called createrepo, which generates the necessary XML metadata.

If you have a slow internet connection or collection of all downloaded ISO images, use this hack to install rpms from iso images.

mirc key

<&adik> cikon 1881-203907
<&cikon> ada dah
<&cikon> siap dah
<&adik> tak kira nak bagi jugak