mirrors/cheat-sheets
1
0
Fork 0
mirror of https://github.com/yuriskinfo/cheat-sheets.git synced 2025-12-23 22:18:11 +01:00
Code Issues Packages Projects Releases Wiki Activity

ongoing additions, changes, and fixes

Browse Source
This commit is contained in:
Yuri Slobodyanyuk
2021-03-20 13:33:16 +00:00
parent 5761ee7854
commit 3bdd5b8340
1 changed files with 33 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
PF-firewall-configuration-and-debug-cheat-sheet.adoc Normal file
View File

@@ -0,0 +1,33 @@
= PF firewall (FreeBSD, OpenBSD) configuration and debug commands cheat sheet
Yuri Slobodyanyuk <admin@yurisk.info>
v1.0, 2020-09-01
:homepage: https://yurisk.info
Author: Yuri Slobodyanyuk, admin@yurisk.info
== PF (Packet Filter) management for FreeBSD & OpenBSD
[cols=2, options="header"]
|===
|Command
|Description
|*pfct -d*
|Disable PF in place, does not survive reboot.
|*pfctl -ef /etc/pf.conf*
|Enable PF and load the rule set from file `/etc/pf.conf` in one go.
|*pfctl -nf /etc/pf.conf*
|Parse security rules stored in a file without installing them (dry run).
|*pass in quick on egress from 62.13.77.141 to any*
| 'Quick' rule, means allow this traffic to pass through on all interfaces, otherwise we would need 2nd rule allowing this traffic in _outgoing_ direction on egress interface) to allow incoming ANY port/protocol with the source being `62.13.77.141` and destination being ANY IP address behind the PF firewall. NOTE: here, `egress` is not a direction, but a group name to which the interface in question (`em0`) belongs to. In OpenBSD you set it in a file `/etc/hostname.em0: group egress` or in real-time with the command: `ifconfig em0 group egress`.
|===