OSSEC – host-based intrusion detection system

OSSEC is an Open Source Host-based Intrusion Detection System.

It performs log analysis, integrity checking, monitoring, rootkit detection, real-time alerting and active response.

In addition to being deployed as an HIDS, it is commonly used strictly as a log analysis tool, monitoring and analyzing firewalls, IDSs, web servers and authentication logs.

Features include:

  • Unix-only:
    • Unix PAM.
    • sshd (OpenSSH).
    • Solaris telnetd.
    • Samba.
    • Su.
    • Sudo.
  • FTP servers:
    • ProFTPd.
    • Pure-FTPd.
    • vsftpd.
    • Microsoft FTP Server.
    • Solaris ftpd.
  • Mail servers:
    • Imapd and pop3d.
    • Postfix.
    • Sendmail.
    • vpopmail.
    • Microsoft Exchange Server.
  • Databases:
    • PostgreSQL.
    • MySQL.
  • Web servers:
    • Apache HTTP Server (access log and error log).
    • IIS web server (NSCA and W3C extended).
    • Zeus Web Server errors log.
  • Web applications:
    • Horde IMP.
    • Modsecurity.
  • Firewalls:
    • Iptables firewall.
    • Solaris IPFilter firewall.
    • AIX ipsec/firewall.
    • Netscreen firewall.
    • Windows Firewall.
    • Cisco PIX.
    • Cisco FWSM.
    • Cisco ASA.
  • NIDS:
    • Cisco IOS IDS/IPS module.
    • Snort IDS (snort full, snort fast and snort syslog).
  • Security tools:
    • Symantec AntiVirus.
    • Nmap.
    • Arpwatch.
    • Cisco VPN Concentrator.
  • Others:
    • Named (BIND).
    • Squid proxy.
    • Zeus eXtensible Traffic Manager.
  • Generic unix authentication (adduser, logins, etc).

Support: Documentation, GitHub Code Repository
Developer: Daniel B. Cid
License: GNU General Public License v2.0

OSSEC is written in C. Learn C with our recommended free books and free tutorials.

Return to Host-Based Intrusion Detection Systems | Return to Vulnerability Detection Tools

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