Internet Relay Chat (IRC) is a system for chatting that involves a set of rules and conventions and client/server software. On the Web, certain sites such as Talk City or IRC networks such as the Undernet provide servers and help you download an IRC client to your PC. Talk City also offers an IRC client applet that it downloads for you as part of their home page so that you can start chatting right away.
DEFINITION of Handle to Registry Key
Handle to Registry Key (HKEY) is a typedef supplied in the Windows headers files. A typedef can be thought of as an alias or pseudonym.
In the Windows registry, a handle represents an open instance of a basic operating system object with which applications interact.
How to set up SSH keys authentication between hosts on Ubuntu
SSH keys allow authentication between two hosts without the need of a password. SSH key authentication uses two keys, a private key and a public key.
To generate the keys, from a terminal prompt enter:
How to stop / start / restart ssh on Ubuntu
How to install OpenSSH on Ubuntu
OpenSSH is a FREE version of the SSH connectivity tools that technical users of the Internet rely on. Users of telnet, rlogin, and ftp may not realize that their password is transmitted across the Internet unencrypted, but it is. OpenSSH encrypts all traffic (including passwords) to effectively eliminate eavesdropping, connection
How to flush iptables on Ubuntu
To see your current rules in iptables (IPv4), enter:
$ sudo iptables -L
To see your current rules in ip6tables (IPv6), enter:
How to stop and start ufw on Ubuntu
ufw command – This command is used for managing a Linux firewall and aims to provide an easy to use interface for the user.
Login as root.
Set auto responders in cPanel
1. Login to your cPanel interface.
2. Click on the “Mail” Button.
3. Click on “Auto-responders”.
Creating email domain forwarders
To set up the email domain forwarder follow this procedure:
1.
2. Login to your cPanel.
3. Go to Mail section.
Securing PHP through WHM
1. Log on to your WHM as root.
2. Go to Service Configuration section.
3. Click on PHP Configuration Editor
4. You can configure various PHP security and performance tweaks
