How to configure and use Sudo on Linux
Introduction. Sudo is a system tool that allows users to execute commands as superuser or another user according to how it is specified in the / etc / sudoers file, where it is determined who is authorized. The actual and effective user and group identity numbers (UID and GID) are set to equal ...
Google tricks
Driving google crazy Here is a little JavaScript code to make the Google logo dance in your browser. 1. Go to Google.com 2. delete everything in the address or URL bar and copy and paste the following code: javascript: R = 0; x1 = .1; y1 = .05; x2 = .25; y2 = .24; x3 = 1.6; y3 = .24; x4 = 300; y4 = 200; x5 = 300; y5 = 200; DI = document.images; DIL = DI.length; function A () {for (i = 0; ...
How to configure a DHCP server on a LAN in Linux
Introduction. DHCP (acronym for Dynamic Host Configuration Protocol which translates to Dynamic Server Configuration Protocol) is a protocol that allows individual devices on a network of IP addresses to obtain their own network configuration information (IP address; subnet mask, gateway, etc.) from a DHCP server. Its main purpose is to do ...
Zip and unzip on Linux .Zip, .Rar, .Gz, .bz2, .Bzip2, .Lha, .Arj, .Zoo
Files .tar tar packs several files into one, but does not compress. Install the tool: # emerge -n tar Pack: # tar cf archive.tar files Unpack: # tar -xvf archive.tar See content: # tar -tf archive.tar Files .gz gzip only compresses file by file, does not pack several files in one nor does it compress directories. Install the tool: # emerge -n gzip Compress: # gzip…
How to configure a Domain Name Server (DNS) (BIND).
Introduction. Bind (Berkeley Internet Name Domain). BIND (acronym for Berkeley Internet Name Domain) is an implementation of the DNS protocol and provides a free implementation of the main components of the Domain Name System, which include: • A domain name system server (named). • A domain name system resolving library. • Tools for …
10 things that distinguish entrepreneurs
Being an entrepreneur is similar to being a professional athlete in that many people want to play that role, but very few have what it takes to make it to the big leagues. You also require a long list of skills to do it. Here are ten things that separate entrepreneurs from employees. 1. They visualize ...