# Installation on Red Hat/CentOS

LL::NG requires at least Red Hat/CentOS 7

## Organization

LemonLDAP::NG provides packages for Red Hat/Centos 7:

- lemonldap-ng: metapackage, contains no file but dependencies on other packages
- lemonldap-ng-doc: contains HTML documentation and project docs (README, etc.)
- lemonldap-ng-conf: contains default configuration (DNS domain: example.com)
- lemonldap-ng-test: contains sample CGI test page
- lemonldap-ng-handler: contains Apache Handler implementation (agent)
- lemonldap-ng-manager: contains administration interface and session explorer
- lemonldap-ng-portal: contains authentication portal and menu
- lemonldap-ng-fastcgi-server: FastCGI server needed to use Nginx
- lemonldap-ng-nginx: contains Nginx configuration and dependencies
- lemonldap-ng-uwsgi-app: contains Uwsgi application
- perl-Lemonldap-NG-Common: CPAN - Shared modules
- perl-Lemonldap-NG-Handler: CPAN - Handler modules
- perl-Lemonldap-NG-Manager: CPAN - Manager modules
- perl-Lemonldap-NG-Portal: CPAN - Portal modules

The package lemonldap-ng-nginx requires the nginx community package. If you use openrestry or Nginx plus, you must ignore this dependency. To do this, download the package and install it with:

    rpm --nodeps -i lemonldap-ng-nginx*.rpm

## Get the packages

### YUM repository

You can add this YUM repository to get recent packages:

    vi /etc/yum.repos.d/lemonldap-ng.repo

    [lemonldap-ng]
    name=LemonLDAP::NG packages
    baseurl=https://lemonldap-ng.org/redhat/stable/$releasever/noarch
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-OW2

Replace `stable` by `2.0` to avoid upgrade to next major version

You may also need some extras packages, available here:

    [lemonldap-ng-extras]
    name=LemonLDAP::NG extra packages
    baseurl=https://lemonldap-ng.org/redhat/extras/$releasever
    enabled=1
    gpgcheck=1
    gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-OW2

Run this to update packages cache:

    yum update

You must also install the EPEL repository for non-core dependencies. See prerequisites and dependencies chapter for more.

### Manual download

RPMs are available on the Download page.

## Package GPG signature

The GPG key can be downloaded here: rpm-gpg-key-ow2

Install it to trust RPMs:

    curl https://lemonldap-ng.org/_media/rpm-gpg-key-ow2 > /etc/pki/rpm-gpg/RPM-GPG-KEY-OW2

## Install packages

### With YUM

If the packages are stored in a yum repository:

    yum install lemonldap-ng

You can also use yum on local RPMs file:

    yum localinstall lemonldap-ng-* perl-Lemonldap-NG-*

### With RPM

Before installing the packages, install all dependencies.

You have then to install all the downloaded packages:

    rpm -Uvh lemonldap-ng-* perl-Lemonldap-NG-*

You can choose to install only one component by choosing the package `lemonldap-ng-portal`, `lemonldap-ng-handler` or `lemonldap-ng-manager`.

Install the package `lemonldap-ng-conf` on all server which contains one of those packages.

## First configuration steps

### Change default DNS domain

By default, DNS domain is `example.com`. You can change it quick with a sed command. For example, we change it to `ow2.org`:

    sed -i 's/example\.com/ow2.org/g' /etc/lemonldap-ng/* /var/lib/lemonldap-ng/conf/lmConf-1.json /etc/nginx/conf.d/* /etc/httpd/conf.d/*

### Upgrade

If you upgraded LL::NG, check all upgrade notes.

### DNS

Configure your DNS server to resolve names with your server IP:

- auth.<your domain>: main portal, must be public
- manager.<your domain>: manager, only for adminsitrators
- test1.<your domain>, test2.<your domain>: sample applications

Follow the next steps

## File location

- Configuration is in /etc/lemonldap-ng
- LemonLDAP::NG configuration (edited by the Manager) is in /var/lib/lemonldap-ng/conf/
- All Perl modules are in the VENDOR perl directory
- All Perl scripts/pages are in /var/lib/lemonldap-ng/
- All static content (examples, CSS, images, etc.) is in /usr/share/lemonldap-ng/

## Build your packages

If you need it, you can rebuild RPMs:

- Install rpm-build package
- Install all build dependencies (see BuildRequires in lemonldap-ng.spec)
- Put LemonLDAP::NG tarball in %_topdir/SOURCES
- Edit ~/.rpmmacros and set your build parameters:

    %_topdir /home/user/build
    %dist .el7
    %rhel 7

- Go to %_topdir
- Build:

    rpmbuild -ta SOURCES/lemonldap-ng-VERSION.tar.gz