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diff --git a/content/en/docs/Start/_index.md b/content/en/docs/Start/_index.md index 963b9f1..43d8e28 100644 --- a/content/en/docs/Start/_index.md +++ b/content/en/docs/Start/_index.md @@ -5,3 +5,219 @@ weight: 20 description: > How to get up and running with the Ouroboros prototype. --- + +### Get Ouroboros + +**Packages:** + +For ArchLinux users, the easiest way to try Ouroboros is via the [Arch +User Repository](https://aur.archlinux.org/packages/ouroboros-git/), +which will also install all dependencies. + +**Source:** + +You can clone the [repository](/cgit/ouroboros) over https or +git: + +```bash +$ git clone https://ouroboros.rocks/git/ouroboros +$ git clone git://ouroboros.rocks/ouroboros +``` + +Or download a [snapshot](/cgit/ouroboros/) tarball and extract it. + +### System requirements + +Ouroboros builds on most POSIX compliant systems. Below you will find +instructions for GNU/Linux, FreeBSD and OS X. On Windows 10, you can +build Ouroboros using the [Linux Subsystem for +Windows](https://docs.microsoft.com/en-us/windows/wsl/install-win10) . + +You need [*git*](https://git-scm.com/) to clone the +repository. To build Ouroboros, you need [*cmake*](https://cmake.org/), +[*google protocol buffers*](https://github.com/protobuf-c/protobuf-c) +installed in addition to a C compiler ([*gcc*](https://gcc.gnu.org/) or +[*clang*](https://clang.llvm.org/)) and +[*make*](https://www.gnu.org/software/make/). + +Optionally, you can also install +[*libgcrypt*](https://gnupg.org/software/libgcrypt/index.html), +[*libssl*](https://www.openssl.org/), +[*fuse*](https://github.com/libfuse), and *dnsutils*. + +On GNU/Linux you will need either libgcrypt (≥ 1.7.0) or libssl if your +[*glibc*](https://www.gnu.org/software/libc/) is older than version +2.25. + +On OS X, you will need [homebrew](https://brew.sh/). +[Disable System Integrity Protection](https://developer.apple.com/library/content/documentation/Security/Conceptual/System_Integrity_Protection_Guide/ConfiguringSystemIntegrityProtection/ConfiguringSystemIntegrityProtection.html) +during the +[installation](#install) +and/or +[removal](#remove) +of Ouroboros. + +### Install the dependencies + +**Debian/Ubuntu Linux:** + +```bash +$ apt-get install git protobuf-c-compiler cmake +$ apt-get install libgcrypt20-dev libssl-dev libfuse-dev dnsutils cmake-curses-gui +``` + +If during the build process cmake complains that the Protobuf C +compiler is required but not found, and you installed the +protobuf-c-compiler package, you will also need this: + +```bash +$ apt-get install libprotobuf-c-dev +``` + +**Arch Linux:** + +```bash +$ pacman -S git protobuf-c cmake +$ pacman -S libgcrypt openssl fuse dnsutils +``` + +**FreeBSD 11:** + +```bash +$ pkg install git protobuf-c cmake +$ pkg install libgcrypt openssl fusefs-libs bind-tools +``` + +**Mac OS X Sierra / High Sierra:** + +```bash +$ brew install git protobuf-c cmake +$ brew install libgcrypt openssl +``` + +### Install Ouroboros + +We recommend creating a build directory: + +```bash +$ mkdir build && cd build +``` + +Run cmake providing the path to where you cloned the Ouroboros +repository. Assuming you created the build directory inside the +repository directory, do: + +```bash +$ cmake .. +``` + +Build and install Ouroboros: + +```bash +$ sudo make install +``` + +### Advanced options + +Ouroboros can be configured by providing parameters to the cmake +command: + +```bash +$ cmake -D<option>=<value> .. +``` + +Alternatively, after running cmake and before installation, run +[ccmake](https://cmake.org/cmake/help/latest/manual/ccmake.1.html) to +configure Ouroboros: + +```bash +$ ccmake . +``` + +A list of all options can be found [here](/docs/reference/compopt). + +### Remove Ouroboros + +To uninstall Ouroboros, simply execute the following command from your +build directory: + +```bash +$ sudo make uninstall +``` + +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. |