Binary describes a numbering scheme in which there are only two possible values for each digit: 0 and 1. The term also refers to any digital encoding/decoding system in which there are exactly two possible states.In digital data memory, storage, processing, and communications, the 0 and 1 values are sometimes called “low” and “high,” respectively.
DEFINITION of bytecode
Bytecode is computer object code that is processed by a program, usually referred to as avirtual machine, rather than by the “real” computer machine, the hardware processor. The virtual machine converts each generalized machine instruction into a specific machine instruction or instructions that this computer’s
How to install Samba package in CentOS 6.3 / RHEL
Install Samba package
Check and remove any previously installed samba package
[root@server ~]# rpm -qa | grep samba
[root@server ~]# yum list installed | grep samba
How to disable recursive DNS lookups on cPanel
A very common PCI Issue is related to the DNS servers. In order to be PCI Compliant you must disable the ability of DNS Poisioning (a process in which the DNS may be modified by an outside source and resulting in false lookups or hijacked pages).
How to add a wildcard dns entry for domain name in cPanel
1. Login to your cpanel account (mydomain.com/cpanel)
2. Under the “Domains” column you will “Subdomains” click on this.
How to add a wild card dns entry for domain name in WHM
1. Log into WHM as the root user.
2. Click Edit DNS Zone, under “DNS Functions” on the left-side menu.
3. Choose the zone you want to add a wildcard to, and click edit.
How to turn on/off mod_userdir on cPanel/WHM
Apache’s mod_userdir allows users to view their sites by entering a tilde(~) and their username as the uri on a specific host. For example http://test.cpanel.net/~fred/ will bring up the user fred’s domain. The disadvantage of this feature is that any bandwidth usage used by this site will be put on the domain it is accessed under (in this
How to change cPanel/ftp passwords
Here’s how you’d change your cpanel/ftp passwords:
1) Log into whm
2) Click on”password modification” (under the account functions section)
How to activate or deactivate webmail clients in cPanel
You can activate or deactivate specific webmail clients on your Cpanel based server by browsing over to the “Tweak Settings” section in WHM (Web Host Manager).
To login to WHM, you will input this into your web browser:
How to SCP files to Sever
If you wanted to copy a single file from one server to another server you issue the following command;
scp filename.tar root@newserverip:/your/directory/
