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authorDimitri Staessens <[email protected]>2021-02-13 17:17:15 +0100
committerDimitri Staessens <[email protected]>2021-02-13 17:17:15 +0100
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----
-title: "Check installation"
-date: 2021-01-03
-weight: 40
-description: >
- Check if ouroboros works.
-draft: false
----
-
-To check if everything is installed correctly, you can now jump into
-the [Tutorials](../../tutorials/) section, or you can try to ping this
-webhost over ouroboros using the name _ouroboros.rocks.oping_
-
-Our webserver is of course on an IP network, and ouroboros does not
-control IP, but it can run over UDP/IP.
-
-To be able to contact our server over ouroboros, you will need to do
-some small DNS configuration: to tell the ouroboros UDP system that
-the process "ouroboros.rocks.oping" is running on our webserver by
-add the line
-
-```
-51.38.114.133 1bf2cb4fb361f67a59907ef7d2dc5290
-```
-
-to your ```/etc/hosts``` file[^1][^2].
-
-Here are the steps to ping our server over ouroboros:
-
-Run the IRMd:
-
-```bash
-$ sudo irmd &
-```
-Then you will need find your (private) IP address and start an ouroboros UDP
-daemon (ipcpd-udp) on that interface:
-```bash
-$ irm ipcp bootstrap type udp name udp layer udp ip <your local ip address>
-```
-
-Now you can ping our server:
-
-```bash
-$ oping -n ouroboros.rocks.oping
-```
-
-The output from the IRM daemon should look something like this (in DEBUG mode):
-```
-[dstaesse@heteropoda build]$ sudo irmd --stdout
-==01749== irmd(II): Ouroboros IPC Resource Manager daemon started...
-==01749== irmd(II): Created IPCP 1781.
-==01781== ipcpd/udp(DB): Bootstrapped IPCP over UDP with pid 1781.
-==01781== ipcpd/udp(DB): Bound to IP address 192.168.66.233.
-==01781== ipcpd/udp(DB): Using port 3435.
-==01781== ipcpd/udp(DB): DNS server address is not set.
-==01781== ipcpd/ipcp(DB): Locked thread 140321690191424 to CPU 7/8.
-==01749== irmd(II): Bootstrapped IPCP 1781 in layer udp.
-==01781== ipcpd/ipcp(DB): Locked thread 140321681798720 to CPU 6/8.
-==01781== ipcpd/ipcp(DB): Locked thread 140321673406016 to CPU 1/8.
-==01781== ipcpd/udp(DB): Allocating flow to 1bf2cb4f.
-==01781== ipcpd/udp(DB): Destination UDP ipcp resolved at 51.38.114.133.
-==01781== ipcpd/udp(DB): Flow to 51.38.114.133 pending on fd 64.
-==01749== irmd(II): Flow on flow_id 0 allocated.
-==01781== ipcpd/udp(DB): Flow allocation completed on eids (64, 64).
-==01749== irmd(DB): Partial deallocation of flow_id 0 by process 1800.
-==01749== irmd(II): Completed deallocation of flow_id 0 by process 1781.
-==01781== ipcpd/udp(DB): Flow with fd 64 deallocated.
-==01749== irmd(DB): Dead process removed: 1800.
-```
-
-If connecting to _ouroboros.rocks.oping_ failed, you are probably
-behind a NAT firewall that is actively blocking outbound UDP port
-3435.
-
-[^1]: This is the IP address of our server and the MD5 hash of the
- string _ouroboros.rocks.oping_. To check if this is configured
- correctly, you should be able to ping the server with ```ping
- 1bf2cb4fb361f67a59907ef7d2dc5290``` from the command line.
-
-[^2]: The ipcpd-udp allows setting up a (private) DDNS server and
- using the Ouroboros ```irm name``` API to populate it, instead
- of requiring each node to manually edit the ```/etc/hosts```
- file. While we technically could also set up such a DNS on our
- server for demo purposes, it is just too likely that it would be
- abused. The Internet is a nasty place. \ No newline at end of file