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Software Functionality Revealed in Detail
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 linux 101


E-mail 101
The first e-mail programs were created in the late 60s/early 70s—simpler times, when everyone on the network was trustworthy. Even knowing what we know today

linux 101  to a UNIX or Linux machine with the host program installed, you can do some DNS lookups at the command prompt. Here are some examples: #. . . Look up the A record of www.sun.com $ host www.sun.com www.sun.com has address 72.5.124.61 #. . . Lookup up the MX records of sun.com $ host -t mx sun.com sun.com mail is handled by 5 btmx4.sun.com. sun.com mail is handled by 5 btmx6.sun.com. sun.com mail is handled by 20 mx3.sun.com. sun.com mail is handled by 20 mx4.sun.com. #. . .Do a reverse-lookup on

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Software Functionality Revealed in Detail

We’ve opened the hood on every major category of enterprise software. Learn about thousands of features and functions, and how enterprise software really works.

Get free sample report
Compare Software Solutions

Visit the TEC store to compare leading software by functionality, so that you can make accurate and informed software purchasing decisions.

Compare Now

Open Source and Linux, IT Services Software Evaluation Report

The model of IT services for Free and Open Source software (FOSS) helps identify the characteristics clients require from consultants, integrators, resellers, etc. to develop, support, migrate, and implement enterprise solutions or services that are based on, or are themselves, FOSS. In addition, it supports standard criteria important to enterprise Linux rollouts or migrations. 

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