Protecting your network with the Suricata intrusion detection system
Conclusion
IDS and IPS systems are generally difficult to set up and maintain. If you don't tune your rules, you can get a lot of false positives, which might block legitimate traffic or mask an actual attack in the flood of alerts. However, the upside is significant; you can block attacks in real time (using IPS mode) and provide alerts of outgoing attacks (indicating compromised internal hosts). Additionally, certain types of data (such as TLS/SSL certificate logs) do not take up a lot of space and can provide invaluable insight later, when attacks occur and information about malware becomes available. Once network traffic is gone, it's gone forever. Unless you record it, chances are you'll never be able to reconstruct what truly happened.
Infos
- Suricata: http://suricata-ids.org/
- Suricata Installation: https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Suricata_Installation
- PulledPork: https://code.google.com/p/pulledpork/downloads/list
- Suricata IPS Setup: https://redmine.openinfosecfoundation.org/projects/suricata/wiki/Setting_up_IPSinline_for_Linux
- Barnyard2: https://github.com/firnsy/barnyard2
- libhtp: https://github.com/ironbee/libhtp
- Suricata File Extraction: https://redmine.openinfosecfoundation.org/projects/suricata/wiki/File_Extraction
- pyinotify: https://github.com/seb-m/pyinotify
- Security Lessons: Spoofed Browsers: http://www.linux-magazine.com/w3/issue/114/054-055_kurt.pdf
- Mozilla Included certificate authorities: https://www.mozilla.org/en-US/about/governance/policies/security-group/certs/included/
- Blocklists of Suspected Malicious IPs and URLs: http://zeltser.com/combating-malicious-software/malicious-ip-blocklists.html
- Snorby: https://snorby.org/
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Direct Download
Read full article as PDF:
Price $2.95
News
-
OpenMandriva Lx ROME Technical Preview Released
OpenMandriva’s rolling release distribution technical preview has been released for testing purposes and adds some of the latest/greatest software into the mix.
-
Linux Mint 21 is Now Available
The latest iteration of Linux Mint, codenamed Vanessa, has been released with a new upgrade tool and other fantastic features.
-
Firefox Adds Long-Anticipated Feature
Firefox 103 has arrived and it now includes a feature users have long awaited…sort of.
-
System76 Refreshes Their Popular Oryx Pro Laptop with a New CPU
The System76 Oryx Pro laptop has been relaunched with a 12th Gen CPU and more powerful graphics options.
-
Elive Has Released a New Beta
The Elive team is proud to announce the latest beta version (3.8.30) of its Enlightenment-centric Linux distribution.
-
Rocky Linux 9 Has Arrived
The latest iteration of Rocky Linux is now available and includes a host of new features and support for new architecture.
-
Slimbook Executive Linux Ultrabook Upgrading Their CPUs
The Spanish-based company, Slimbook, has made available their next generation Slimbook Executive Linux ultrabooks with a 12th Gen Intel Alder Lake CPU.
-
Fedora Linux is Coming to the Raspberry Pi 4
Thanks to significant work in the upstream, the upcoming release of Fedora 37 will introduce support for the Raspberry Pi 4.
-
New Linux Ultrabook from TUXEDO Computers
TUXEDO Computers has released a new 15" Ultrabook running Linux.
-
GNOME 43 To Bring Some Exciting New Features
GNOME 43 is getting close to the first alpha development release and it promises to add one particular feature that should be exciting to several users.