Linux Operating System
- Miguel Lauriano
- Aparna Rr
About the Device
Linux is one of the most well-known UNIX-like operating systems. It is open-source and free to use, developed under the GNU General Public License (GPL). Some popular Linux distributions include Ubuntu, CentOS, Debian, Fedora, and Red Hat Enterprise Linux (RHEL).
There are many services and packages available in the Linux. Each service plays a crucial role in enabling various functionalities and supporting different types of applications and workloads. Here are service description which are supported.
Device Information
 Entity | Particulars |
|---|---|
Vendor Name | Open Source |
Product Name | Linux Operating System |
Type of Device | Hosted |
Collection Method
Log Type | Â Ingestion label | Preferred Logging Protocol - Format | Log collection method |
|---|---|---|---|
Linux Auditing System (AuditD) | AUDITD | Syslog KV/Unstructured | CyberHub |
Linux Sysmon | LINUX_SYSMON | Syslog XML | CyberHub |
Unix system | NIX_SYSTEM | Syslog Unstructured | CyberHub |
Port Requirements
Source | Destination | Port |
|---|---|---|
Linux Operating System | CyberHub | 601 (TCP) |
To facilitate secure communication and align with our best practice, we strongly encourage the use of Transport Layer Security (TLS) between your security devices and our Adaptive MxDR platform for event forwarding.
While we understand that TLS support may not be available on all devices, if your devices do support TLS communication, we recommend utilizing port 6514 for seamless integration.
In some cases, the upgraded version of the device might incorporate TLS support without prior notice. If you come across such a scenario or for further assistance in configuring TLS, we kindly ask you to reach out to your dedicated Adaptive MxDR Service Delivery Lead.
Device Configuration
To Configure Linux Audit System (AUDITD) logging
The below steps are validated on following Linux distributions - Ubuntu v22.04.4 LTS, RHEL v9.3, Debian v12.5 and SUSE Linux Enterprise v15.5.
Log in to CLI with root or similar privileges.
Deploy and enable the audit daemon and the audit dispatching framework by running the following command.
If you have already deployed the daemon and framework, you can skip this step.
For Debian and Ubuntu OS -
sudo apt-get install auditd audispd-plugins
For RedHat OS -
sudo yum install audit audispd-plugins
For SUSE OS
sudo zypper install audit audit-audispd-pluginsEnable auditd service
sudo systemctl enable auditd.serviceTo enable logging of all commands, which include the user and root, add the following lines to
/etc/audit/rules.d/audit.rules:
-a exit,always -F arch=b64 -S execve
-a exit,always -F arch=b32 -S execveVerify that the parameters in the
/etc/audit/plugins.d/syslog.conffile match the following values:
(Optional Step) - To disable local file logging to syslog, configure rsyslog configuration file by appending
local6.noneto all the lines those allow configure what is logged to local syslog files. The file differs for each OS. For RHEL, Debian and SUSE the file is/etc/rsyslog.conf, and for Ubuntu the file is/etc/rsyslog.d/50-default.conf.
Restart auditd and rsyslog service.
To Configure Linux Sysmon logging
The below steps are validated on following Linux distributions - Ubuntu v22.04.4 LTS, RHEL v9.3 and Debian v12.5.
Log in to CLI with root or similar privileges.
Use the following commands according to your Linux version, to register Microsoft key and feed, then to install SysmonForLinux.
Install service and driver.
To Forward All the Linux OS Logs to CyberHub
Modify or create the
/etc/rsyslog.d/50-default.conffile and add the following line at the end of the file:
Replace FORWARDER_IP with CyberHub IP. The @@indicates that TCP is used to send the message.
Restart rsyslog service.
Integration Parameters
Parameters required from customer for Integration.
Property | Default Value | Description |
|---|---|---|
IP Address | Linux Operating System interface IP address | Hostname or IP address of the device which forwards logs to the CyberHub |
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