Allow use of rules as-defined, and don't override their actions. This
is generally the best way to use the ruleset, and overriding their
actions should only be undertaken when you fully understand how it
affects their use.
Signed-off-by: Eric Fahlgren <ericfahlgren@gmail.com>
- Delete legacy configuration files homenet.lua and local.lua
- Add snort config 'include' to allow user customizations in the lua
- Enhance 'check' to test generated nftables file
- Suppress inclusion of rules file when doing silent config check
- Suppress warnings on configuration check unless '-v'erbose
- Replace text logging with json logging to reduce footprint and make reports easier
- Fix some typos in the snort.uc template
- Fix up some error messages suggesting solutions
Signed-off-by: Eric Fahlgren <ericfahlgren@gmail.com>
- Add many options to config file.
- Move rules and generated snort.lua to /tmp.
- Add script for downloading rules.
- Add preliminary reporting capabilites.
Signed-off-by: Eric Fahlgren <ericfahlgren@gmail.com>
* Use Boolean true for enable inline mode which is more intuitive that older ''
* Add skeleton section for openappid since it has been merged[1]
1. 2d4e7d5fd3
Signed-off-by: John Audia <therealgraysky@proton.me>
This commit adds /etc/snort/local.lua and /etc/snort/homenet.lua for user
defined config options which is more simplistic than modifying upstream
files directly. That can be tedious and decisive to maintain in sync with
upstream changes. The init script has been adjusted accordingly.
Acknowledgment to amish who maintains the Arch Linux snort-nfqueue package[1]
for these ideas and initial code.
Another modification is dropping the following args in the call to
/usr/bin/snort by the init system as these options are provided in
/etc/snort/local.lua:
* --daq-dir /usr/lib/daq/
* -A "$alert_module"
Instructions to configure snort3:
1. Edit /etc/snort/homenet.lua and redefine HOME_NET and EXTERNAL_NET, for example:
HOME_NET = [[ 10.9.8.0/24 192.168.1.0/24 ]]
EXTERNAL_NET = "!$HOME_NET"
2. Edit /etc/snort/local.lua to setup options unique to your use case of snort.
The default ones I included should be sane for the role of IDS (alert only),
but users may easily uncomment some options therein to use IPS (drop) mode.
3. Install or symlink rules to /etc/snort/rules/snort.rules and optionally
edit /etc/snort/local.lua to define extra rules files if not using a unified
'snort.rules'
References:
1. https://aur.archlinux.org/packages/snort-nfqueue
Signed-off-by: John Audia <therealgraysky@proton.me>
Include default configuration files to have something to start from.
Also include snort2lua to help convert snort2 rules to snort3 to also
help with bootstrapping the configuration.
Signed-off-by: Michal Hrusecky <michal.hrusecky@turris.com>
