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toolsandtechnologies:openvpn

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toolsandtechnologies:openvpn [2017/08/08 13:35] – adowlingtoolsandtechnologies:openvpn [2021/06/25 10:09] (current) – external edit 127.0.0.1
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 +=====OpenVPN=====
 +
 +[[https://openvpn.net|website]]
 +[[https://en.wikipedia.org/wiki/OpenVPN|wikipedia]]
 +
 +OpenVPN is a software application for setting up VPN connections. It is currently deployed for ExteNet to allow connection the subnet their mNET systems reside on so we can receive traps for them.
 +
 +====Setup====
 +
 +To install OpenVPN on Red Hat first the [[https://access.redhat.com/solutions/3358|EPEL repo]] must be added to yum. Please ensure correct version is installed. 
 +
 +  wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
 +  sudo rpm -ivh epel-release-6-8.noarch.rpm
 +  
 +  
 +Once that is done it can be installed as normal through yum 
 +
 +  sudo yum install openvpn
 +
 +====Configuration====
 +
 +Configuration files and certs were provided by ExteNet and placed in the following locations to configure the system:
 +
 +  /etc/openvpn/mnet-vpn.conf
 +  /etc/openvpn/mnet/ca.crt
 +  /etc/openvpn/mnet/client02.crt
 +  /etc/openvpn/mnet/client02.key
 +
 +To run it just use the openvpn command pointing to the config file, i.e.
 +
 +  sudo openvpn /etc/openvpn/mnet-vpn.conf
 +  
 +====Start/stop as a Background Service====
 +
 +  sudo service openvpn start
 +  sudo service openvpn stop
 +
 +
 +====openvpn logs====
 +
 +  /var/log/messages
 +  
 +  
 +====Troubleshooting====
 +
 +If you encounter the following error when starting openvpn at home: 'Can't assign requested address'
 +
 +Run the following commands:
 +
 +Step 1. Open a Terminal window. (Found in Applications, Utilities.)
 +Step 2. Enter the following commands:
 +  * sudo ifconfig en1 down
 +  * sudo route flush
 +  * sudo ifconfig en1 up
 +OBS! Please make sure to replace en1 with your actual Internet interface. By default you have:
 +  * en0: ethernet (wired) interface
 +  * en1: wlan (wireless) interface
 +
 +
 +source ref: 
 +https://www.ibvpn.com/billing/knowledgebase/145/OpenVPN-error-write-UDPv4-Canandsharp039t-assign-requested-address-codeequals49.html
  

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