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Juniper SRX

Juniper SRX is a networking firewall solution and services gateway. If you ship your Juniper firewall logs to your Logz.io Cloud SIEM, you can centralize your security ops and receive alerts about security events logged by Juniper SRX.

Here are just a few examples for security rules written specifically for Juniper SRX and provided out-of-the-box by Logz.io's security team: port scanning activity detected, failed login attempt from a malicious address, and more.

You can review the Juniper SRX resources in your Logz.io Cloud SIEM account, under the preconfigured Juniper SRX security rules and search for the provided Juniper SRX dashboards to get you started.

Before you begin, you'll need:

Configure Juniper SRX Server logging​

Configure your Juniper firewall to send logs to your Filebeat server. Make sure you meet this configuration:

  • Log format: syslog
  • Send over: UDP
  • IP address: Filebeat server IP address
  • Port 514

See Juniper SRX docs for more information on configuring your Juniper SRX firewall.

Download the Logz.io public certificate​

For HTTPS shipping, download the Logz.io public certificate to your certificate authority folder.

sudo curl https://raw.githubusercontent.com/logzio/public-certificates/master/AAACertificateServices.crt --create-dirs -o /etc/pki/tls/certs/COMODORSADomainValidationSecureServerCA.crt

Configure Filebeat​

Open the Filebeat configuration file (/etc/filebeat/filebeat.yml) with your preferred text editor. Copy and paste the code block below, overwriting the previous content. (You want to replace the file's content with this code block.)

This code block adds Juniper SRX as an input sent over UDP traffic.

note

Filebeat requires a file extension specified for the log input.

# ...
filebeat.inputs:
- type: udp
  max_message_size: 10MiB
  host: "0.0.0.0:514"

  fields:
    logzio_codec: plain

    # Your Logz.io account token. You can find your token at
    #  https://app.logz.io/#/dashboard/settings/manage-accounts
    token: <<LOG-SHIPPING-TOKEN>>
    type: juniper
  fields_under_root: true
  encoding: utf-8
  ignore_older: 3h

  # ... For Filebeat 7 only ...
filebeat.registry.path: /var/lib/filebeat
processors:
- rename:
    fields:
    - from: "agent"
      to: "filebeat_agent"
    ignore_missing: true
- rename:
    fields:
    - from: "log.file.path"
      to: "source"
    ignore_missing: true

Copy and paste the following code block directly below. It sets Logz.io as the output.

# ...
output.logstash:
  hosts: ["<<LISTENER-HOST>>:5015"]
  ssl:
    certificate_authorities: ['/etc/pki/tls/certs/COMODORSADomainValidationSecureServerCA.crt']

Replace the placeholders to match your specifics. (They are indicated by the double angle brackets << >>):

  • Replace <<LOG-SHIPPING-TOKEN>> with the token of the account you want to ship to.

  • Replace <<LISTENER-HOST>> with the host for your region.

note

One last validation - make sure Logz.io is the only output and appears only once. If the file has other outputs, remove them.

Start Filebeat​

Start or restart Filebeat for the changes to take effect.

Check Logz.io for your logs​

Give your logs some time to get from your system to ours, and then open Open Search Dashboards.

If you still don't see your logs, see Filebeat troubleshooting.