Difference between revisions of "This Is Your Brain On Informatics: Common Pathnames"

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<pre>/etc/init.d/[service] [operation]</pre>
 
<pre>/etc/init.d/[service] [operation]</pre>
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''Services''
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* nginx
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* mysql
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* php5-fpm
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* denyhosts
  
 
''Operations''
 
''Operations''
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* force-reload
 
* force-reload
  
''Services''
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===Network File===
* nginx
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* mysql
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* php5-fpm
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* denyhosts
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===/etc/network/interfaces===
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<pre>/etc/network/interfaces</pre>
  
<p>
 
This file will allow modification of the networks that are on a computer/server.  It can be used to set up a static IP address, but a virtual machine will need to use a dynamically acquired IP.  This network will be necessary for allowing the machine to allow ssh capabilities.  Below are the steps for setting up a second network on a virtual machine (one more is necessary in addition to the one that is already on the machine).
 
  
# Access the above pathname with pico ( pic /etc/network/interfaces)
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===Important Deny Hosts Files===
# Below the first network (indicated by eth0), copy the first network, replacing eth0 with eth1
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#::::auto eth1
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#::::iface eth1 inet dhcp
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# Reboot the machine
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# Determine the new IP address of the eth1 network by one of the following
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## After logging in, check the IP next to the eth1 network
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## Type "ifconfig" into the command line and check the IP next to the "inet addr:"
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</p>
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===/etc/hosts.deny===
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<p>
 
<p>
This file can be accessed via [[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.
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The hosts.deny file is for blocking IP addresses.
 
</p>
 
</p>
  
===/etc/host.allow===
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<pre>/etc/hosts.deny</pre>
  
 
<p>
 
<p>
This is a file that is similar in nature to the hosts.deny file in that IP addresses can be input into the file.  However, IP addresses that are input into this file will be allowed access to the nginx web server and prevented from being automatically added to the hosts.deny file (this will still occur if the login attempts from the same IP address are exceeded).  This file should only be used as a last resort if denyhosts continually (and erroneously) adds your personal IP address to the hosts.deny file.  An alternative is using [[This Is Your Brain On Informatics: Linux|aptitude]] to remove the denyhosts firewall; however, this is not recommended for a live server.
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The hosts.allow file is for permanently giving access to IP addresses.
 
</p>
 
</p>
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<pre>/etc/host.allow</pre>
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{{This Is Your Brain On Informatics}}
 
{{This Is Your Brain On Informatics}}

Revision as of 00:13, 1 December 2013

Restarting, reloading, etc. a Service

/etc/init.d/[service] [operation]

Services

  • nginx
  • mysql
  • php5-fpm
  • denyhosts

Operations

  • start
  • stop
  • reload
  • restart
  • force-reload

Network File

/etc/network/interfaces


Important Deny Hosts Files

The hosts.deny file is for blocking IP addresses.

/etc/hosts.deny

The hosts.allow file is for permanently giving access to IP addresses.

/etc/host.allow