===Restarting, reloading, etc. a Service===<pre>/etc/init.d/[service] [operation]===</pre>
<p>This "pathname" is actually a script that causes the initiate daemon (that constantly stays in memory) to act on a service that has been input. After the service, an operation can be input in from one of the following: </p>''Services''* nginx* mysql* php5-fpm* denyhosts
''Operations''
* start
* stop
* force-reload
===Network File===<ppre>For our purposes, the only services that we know that this script can act on are as follows/etc/network/interfaces</pre> ===Important [[This Is Your Brain On Informatics: DenyHosts|Deny Hosts]] Files===The hosts.deny file is for blocking IP addresses. <pre>/etc/hosts.deny</pre> The hosts.allow file is for permanently giving access to IP addresses. <pre>/etc/host.allow</ppre>
* nginx
* mysql
* php5-fpm
===/etc/hosts.deny==={{This Is Your Brain On Informatics}}
<p>This file can be accessed via [[Category:This Is Your Brain On Informatics: Pico|pico]] or any other text editor in order to manage the IP addresses that have been blocked from accessing your virtual machine (including your own if it accidentally happens). Once you are in the file, delete the IP address (possibly your IP address) at the bottom of the file that you no longer wish to restrict.</p>