Suricata: Basic Setup

Sumber: https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Basic_Setup

Bila menggunakan Debian atau FreeBSD, pastikan anda memasukkan semua perintah sebagai root / super-user karena untuk sistem operasi itu tidak mungkin untuk menggunakan 'sudo' tanpa menginstal dan mengkonfigurasinya.

Mulai dengan membuat directory untuk mencatat berbagai informasi dari Suricata.

sudo mkdir /var/log/suricata

Siapkan sistem untuk menggunakan Suricata, tulis

sudo mkdir /etc/suricata

copy classification.config, reference.config dan suricata.yaml dari directory build/installation directory ke /etc/suricata directory. Lakukan dengan:

sudo cp classification.config /etc/suricata
sudo cp reference.config /etc/suricata
sudo cp suricata.yaml /etc/suricata

Note: if you have experience with Snort or have an existing Snort setup, check out the Snort.conf to Suricata.yaml guide. Auto setup

You can also use the available auto setup features of Suricata:

ex:

./configure && make && make install-conf

The make install-conf option will do the regular "make install" and then automatically create/setup all the necessary directories and suricata.yaml.

./configure && make && make install-rules

The make install-rules option will do the regular "make install" and it automatically downloads and sets up the latest ruleset from Emerging Threats available for Suricata.

./configure && make && make install-full

The make install-full option combines everything mentioned above (install-conf and install-rules) - and will present you with a ready to run (configured and set up) Suricata

Setting variables

Make sure every variable of the vars, address-groups and port-groups in the yaml file is set correctly for your needs. A full explanation is available in the Rule vars section of the yaml. You need to set the ip-address(es) of your local network at HOME_NET. It is recommended to set EXTERNAL_NET to !$HOME_NET. This way, every ip-address but the one set at HOME_NET will be treated as external. It is also possible to set EXTERNAL_NET to 'any', only the recommended setting is more precise and lowers the chance that false positives will be generated. HTTP_SERVERS, SMTP_SERVERS, SQL_SERVERS, DNS_SERVERS and TELNET_SERVERS are by default set to HOME_NET. AIM_SERVERS is by default set at 'any'. These variables have to be set for servers on your network. All settings have to be set to let it have a more accurate effect.

Next, make sure the following ports are set to your needs: HTTP_PORTS, SHELLCODE_PORTS, ORACLE_PORTS and SSH_PORTS.

Finally, set the host-os-policy to your needs. See Host OS Policy in the yaml for a full explanation.

 windows:[]
 bsd: [] 
 bsd-right: [] 
 old-linux: [] 
 linux: [10.0.0.0/8, 192.168.1.100, "8762:2352:6241:7245:E000:0000:0000:0000"] 
 old-solaris: [] 
 solaris: ["::1"] 
 hpux10: [] 
 hpux11: [] 
 irix: [] 
 macos: [] 
 vista: [] 
 windows2k3: []

Note that bug #499 may prevent you from setting old-linux, bsd-right and old-solaris right now.

Rule set management and download.

Rule Management with Oinkmaster

or just download and untar the ruleset in a directory of your choosing (or yaml config setting) from here: http://rules.emergingthreats.net/open/suricata/

or if you prefer you can download and use a VRT ruleset.

It is recommended to update your rules frequently. Emerging Threats is modified daily, VRT is updated weekly or multiple times a week. Interface cards

To check the available interface cards, enter:

ifconfig

Now you can see which one you would like Suricata to use.

To start the engine and include the interface card of your preference, enter: Tests for errors rule Very recommended --init-errors-fatal

sudo suricata -c /etc/suricata/suricata.yaml -i wlan0 --init-errors-fatal

Instead of wlan0, you can enter the interface card of your preference.

To see if the engine is working correctly and receives and inspects traffic, enter:

cd /var/log/suricata

Di ikuti dengan:

tail http.log

dan

tail -n 50 stats.log

Pastikan bahwa informasi yang di tampilkan di update secara real tome, gunakan opsi -f sebelum http.log dan stats.log:

tail -f http.log stats.log

Referensi

• https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Basic_Setup