common install

Overall-architecture.md

@@ -737,4 +737,46 @@ Only remaining part is evaluation of results. This is provided on demand when us
 
 
 ## Common install
-TODO:
+This page contains steps how to set up a computer on which some parts of **ReCodEx** may run. Most steps are listed in two variants, for Red Hat based distributions (like RHEL, Centos or Fedora) and Debian based distibutions. Before starting, make sure you have completed basic OS installation and set up, including users and logins, SSH, Git, firewall, etc.
+
+### Repositories
+
+**Add _testing_ repositories to Debian OS**
+- Create file `/etc/apt/apt.conf` with content
+```
+APT::Default-Release "stable";
+```
+- Add testing repos to `/etc/apt/sources.list`
+```
+deb http://ftp.cz.debian.org/debian/ testing main contrib non-free
+deb-src http://ftp.cz.debian.org/debian/ testing contrib non-free
+```
+- Install packages with `-t testing` option. For example
+```
+$ sudo apt-get -t testing install gcc
+```
+**Add EPEL repository to RHEL**
+- See [this](https://fedoraproject.org/wiki/EPEL) for instructions.
+
+
+### Installation of dependencies
+
+Install as new version of each package as possible, so mostly Debian packages are from testing repositories and RHEL packages are the newest ones from EPEL repositories.
+
+**Basic development tools**
+- `g++`
+- `cmake`
+- `make`
+- `git`
+
+**Install ZeroMQ** in version at least 4.0
+- Debian package is `libzmq3-dev`.
+- RedHat packages are `zeromq` and `zeromq-devel`.
+
+**Install YAML-CPP library**
+- Debian packages: `libyaml-cpp0.5v5` and `libyaml-cpp-dev`.
+- RedHat packages are `yaml-cpp` and `yaml-cpp-devel`.
+
+**Install libcurl library**
+- Debian package is `libcurl4-gnutls-dev`.
+- RedHat package is `libcurl-devel`.