CPU (central processing unit) is an older term for processor and microprocessor, the central unit in a computer containing the logic circuitry that performs the instructions of a computer’s programs.
DEFINITION of CRC-4
CRC-4 (Cyclic Redundancy Check 4) is a form of cyclic redundancy checking (a method of checking for errors in transmitted data) that is used on E-1 trunk lines. CRC-4 is structured in a multiframe consisting of 16 frames numbered 0 to 15.
DEFINITION of daemon
A daemon (pronounced DEE-muhn) is a program that runs continuously and exists for the purpose of handling periodic service requests that a computer system expects to receive. The daemon program forwards the requests to other programs (or processes) as appropriate.
DEFINITION of DAO
DAO (Data Access Objects) is an application program interface (API) available with Microsoft’s Visual Basic that lets a programmer request access to a Microsoft Access database.
DEFINITION of DCE
1) In network computing, DCE (Distributed Computing Environment) is an industry-standard software technology for setting up and managing computing and data exchange in a system of distributed computers.
DEFINITION of deadlock
A deadlock is a situation in which two computer programs sharing the same resource are effectively preventing each other from accessing the resource, resulting in both programs ceasing to function.
Updating WHM/cPanel from the command line
WHM/ cPanel might experience errors that can only be resolved by updating the software. To update the software, login is as root and run the following command:
/scripts/upcp
This will only update your WHM installation and not affect any data.
Suspending a hosting account in Plesk
Log into Plesk as admin.
1. Click Domains icon here.
2. Click the domain name for which you’d like to suspend the account.
Security updates for NTP-vulnerable servers
Network Time Protocol (NTP) can be abused to amplify denial-of-service attack traffic. Servers running NTP based on implementations of ntpd prior to version 4.2.7p26 that use the default unrestricted query configuration are susceptible to a reflected denial-of-service (DDoS) attack. Other proprietary NTP implementations may also be affected.
Creating a subdomain in Plesk
1. Click Domains icon here.
2. Click on the domain for which you want to create a subdomain
3. Click Subdomains icon here.
