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Installation

note

All the commands in this section need to be executed as root.

tiCrypt is only supported on CentOS/Redhat 7.0. Support for CentOS/RedHat 8.0 is planned for the future.

The main tiCrypt audit's dependencies are:​

  • A web server like Nginx
  • A firewall such as firewalld
  • The Clickhouse database
  • (Optional) The MaxMind geolocation database
  • (Optional) OpenSSL for key generation

Installing pre-requisites​

Installing Nginx​

include::@site/common/install_nginx.adoc[] Follow the link: The Nginx Install Guide

Installing firewalld​

include::@site/common/install_firewalld.adoc[] Follow the link: The firewalld Install Guide

Installing Clickhouse​

Following the guide at link: Clickhouse Centos Install Guide, we can install Clickhouse following the steps below.

note

Use Clickhouse v20.3.8.53 or later.

We first install dependencies:

yum install –y pygpgme yum-utilshere

then create the file /etc/yum.repos.d/altinity_clickhouse.repo with the content:

[altinity_clickhouse]

name=altinity_clickhouse
baseurl=https://packagecloud.io/altinity/clickhouse/el/7/$basearch
repo_gpgcheck=1
gpgcheck=0
enabled=1
gpgkey=https://packagecloud.io/altinity/clickhouse/gpgkey
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt`

`metadata_expire=300`

`[altinity_clickhouse-source]
name=altinity_clickhouse-source
baseurl=https://packagecloud.io/altinity/clickhouse/el/7/SRPMS
repo_gpgcheck=1
gpgcheck=0
enabled=1
gpgkey=https://packagecloud.io/altinity/clickhouse/gpgkey
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
metadata_expire=300

We then finish the installation:

Enable the repository

yum –q makecache –y --disablerepo’*’ --enablerepo=’altinity_clickhouse’

Install clickhouse client and server

yum install –y clickhouse-server clickhouse-client

We need to make sure Clickhouse server is started and enabled:

systemctl start clickhouse-server systemctl enable clickhouse-server

You can verify that the installation is correct with:

clickhouse-client tiCrypt show databases

You should see the clickhouse client starting and then displaying database information.

Downloading MaxMind GeoIP2 geolocation library​

The MaxMind geolocation library allows the matching of IP addresses to locations. tiCrypt audit can use this library to enhance the information it displays.

Due to licensing issues, you need to register and download the database yourself from link: Maxmind GeopIP2

For the installation instructions of tiCrypt audit, we will assume that the file /root/GeoLite2-City_20200505.tar.gz exists. The exact file name will depend on the version you download.

tip

Note the download path down so that you can correctly use it in the installation of tiCrypt steps.

Installing tiCrypt Audit​

tiCrypt Audit is made available in the form of RPMs for CentOS/RedHat 7.0. The latest version is available from link:{ta-dir}{ta-file}[]

Installation consists simply of downloading and installing the RPM. [subs="attributes+"]

Grab the tiCrypt audit RPM

wget {ta-dir}{ta-file}

Install

yum -y install {ta-file}

We now create a directory structure where tiCrypt audit files will be placed

mkdir -p /var/lib/tiaudit

and place the GeoIP2 database in it, if desired

cp /var/lib/tiaudit tar -xzvf /root/GeoLite2-City_20200505.tar.gz

and then fix the permissions

chown -R tiaudit:tiaudit /var/lib/tiaudit/

The two services comprising the tiCrypt audit system need to be enabled:

systemctl enable tiaudit systemctl enable tiaudit-logger

We now create a directory structure where tiCrypt Audit files will be placed:​

mkdir -p /var/lib/tiaudit

and place the GeoIP2 database in it, if desired:

cp /var/lib/tiaudit tar -xzvf /root/GeoLite2-City_20200505.tar.gz

and then fix the permissions:

chown -R tiaudit:tiaudit /var/lib/tiaudit/

The two services comprising the tiCrypt Audit system need to be enabled:

systemctl enable tiaudit

systemctl enable tiaudit-logger