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docs: Add debug document

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* Start of something useful, maybe.
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Kyle Manna 2014-07-01 00:04:20 -07:00
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# Debugging
Random things I do to debug the containers.
## Stream OpenVPN Logs
1. Get the container's name or container ID:
root@vpn:~/docker-openvpn# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
ed335aaa9b82 kylemanna/openvpn:latest ovpn_run 5 minutes ago Up 5 minutes 0.0.0.0:1194->1194/udp sad_lovelace
2. Tail the logs:
root@vpn:~/docker-openvpn# docker logs -f sad_lovelace
+ mkdir -p /dev/net
+ [ ! -c /dev/net/tun ]
+ mknod /dev/net/tun c 10 200
+ [ ! -d /etc/openvpn/ccd ]
+ iptables -t nat -A POSTROUTING -s 192.168.254.0/24 -o eth0 -j MASQUERADE
+ iptables -t nat -A POSTROUTING -s 192.168.255.0/24 -o eth0 -j MASQUERADE
+ conf=/etc/openvpn/openvpn.conf
+ [ ! -s /etc/openvpn/openvpn.conf ]
+ conf=/etc/openvpn/udp1194.conf
+ openvpn --config /etc/openvpn/udp1194.conf
Tue Jul 1 06:56:48 2014 OpenVPN 2.3.2 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [eurephia] [MH] [IPv6] built on Mar 17 2014
Tue Jul 1 06:56:49 2014 Diffie-Hellman initialized with 2048 bit key
Tue Jul 1 06:56:49 2014 Control Channel Authentication: using '/etc/openvpn/pki/ta.key' as a OpenVPN static key file
Tue Jul 1 06:56:49 2014 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 1 06:56:49 2014 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Tue Jul 1 06:56:49 2014 Socket Buffers: R=[212992->131072] S=[212992->131072]