=== Installing (all distributions) ===

<sxh bash>yum install httpd</sxh>
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===== Starting apache =====

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==== CentOS/RHL 5+6 ====

<sxh bash>service httpd start</sxh>
==== CentOS/RHL7 ====

<sxh bash>systemctl start httpd</sxh>
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===== Start Apache from boot =====
 

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==== CentOS/RHL 5+6 ====

<sxh bash>chkconfig httpd on</sxh>
==== CentOS/RHL7 ====

<sxh bash>systemctl enable httpd</sxh>