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implementing-syslog-centralization-with-rsyslog

Configure rsyslog for centralized log collection with TLS encryption, custom templates, and log rotation, generating server and client configuration files with GnuTLS stream drivers, x509 certificate authentication, per-host log segregation, and reliable queue settings. Use when building a centralized, encrypted syslog pipeline, hardening rsyslog client/server configs for high-availability log infrastructure, or troubleshooting TLS-based syslog forwarding.

Published by mukul975 ↗mukul975/Anthropic-Cybersecurity-Skills

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implementing-syslog-centralization-with-rsyslog

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Use implementing-syslog-centralization-with-rsyslog to draft TLS-enabled rsyslog server and client configurations for [server requirements] and [client inventory], including per-host JSON logs and reliable queues; do not deploy or connect to hosts.

Required inputs

  • [server requirements]
  • [client inventory]

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SKILL.md

name: implementing-syslog-centralization-with-rsyslogdescription: Configure rsyslog for centralized log collection with TLS encryption,  custom templates, and log rotation, generating server and client configuration  files with GnuTLS stream drivers, x509 certificate authentication, per-host log  segregation, and reliable queue settings. Use when building a centralized, encrypted  syslog pipeline, hardening rsyslog client/server configs for high-availability log  infrastructure, or troubleshooting TLS-based syslog forwarding.domain: cybersecuritysubdomain: security-operationstags: - syslog- rsyslog- log-centralization- tls-encryption- log-management- security-operationsversion: '1.0'author: mahipallicense: Apache-2.0nist_csf: - DE.CM-01- RS.MA-01- GV.OV-01- DE.AE-02mitre_attack: - T1078- T1190- T1059- T1573- T1486

Implementing Syslog Centralization with Rsyslog

When to Use

  • When deploying or configuring implementing syslog centralization with rsyslog capabilities in your environment
  • When establishing security controls aligned to compliance requirements
  • When building or improving security architecture for this domain
  • When conducting security assessments that require this implementation

Prerequisites

  • Familiarity with security operations concepts and tools
  • Access to a test or lab environment for safe execution
  • Python 3.8+ with required dependencies installed
  • Appropriate authorization for any testing activities

Instructions

  1. Install dependencies: pip install jinja2 paramiko
  2. Generate TLS certificates for rsyslog server and clients using OpenSSL.
  3. Run the agent to generate rsyslog server and client configurations:
    • Server: TLS listener on port 6514, per-host directory output, JSON-format templates
    • Client: TLS forwarding with disk-assisted queues for reliability
  4. Deploy configurations to servers via SSH (paramiko).
  5. Validate TLS connectivity and log delivery.
python scripts/agent.py --server-ip 10.0.0.1 --clients 10.0.0.10,10.0.0.11 --ca-cert ca.pem --output syslog_report.json

Examples

Server Configuration (TLS)

module(load="imtcp" StreamDriver.Name="gtls" StreamDriver.Mode="1"
       StreamDriver.Authmode="x509/name")
input(type="imtcp" port="6514")
template(name="PerHostLog" type="string" string="/var/log/remote/%HOSTNAME%/%PROGRAMNAME%.log")
*.* ?PerHostLog

Client Configuration (Reliable Forwarding)

action(type="omfwd" target="10.0.0.1" port="6514" protocol="tcp"
       StreamDriver="gtls" StreamDriverMode="1"
       StreamDriverAuthMode="x509/name"
       queue.type="LinkedList" queue.filename="fwdRule1"
       queue.maxdiskspace="1g" queue.saveonshutdown="on"
       action.resumeRetryCount="-1")