firewall

  1. U

    IPFW ipfw and pf

    Hello everyone, I would like to use pf and ipfw at the same time for different tasks, but I can not understand who is activated first (if there is an order) when a rule is received. Also trying to verify this, I can’t figure out where the pf and ipfw log files are located on both OPNsense and...
  2. O

    Solved BVCP and pf rules

    I can access the BVCP web interface on my FreeBSD workstation when I have the PF firewall disabled, but whenever I have PF firewall enabled and try to connect to a BVCP web interface, I get the following error: "Unable to connect to Backend module". I would expect it to work if I open inbound...
  3. K

    PF Confused whitelist location?

    Hi. I'm confused a bit about where to put my whitelist table (containing IPs that shouldn't get blocked). My current configuration does not whitelist my <whitelist> table. This is the trimmed pf.conf file of mine; ext_if="re0" table <whitelist> persist file "/var/pf/whitelist.txt" table...
  4. B

    PF PF not allowing IPv6 traffic

    Hello, I'm new to FreeBSD and loving it. The only thing I'm really struggling with is getting a good pf.conf. Here's my attempt. Sadly I can't get it to allow IPv6 traffic. Can anyone help me with what I'm doing wrong? vtnet0 = "vtnet0" set skip on { lo0 lo1 } # basic hardening scrub in all...
  5. plexinvise

    Solved FreeBSD as a MITM router

    Hi there, I am stuck with a problem I cannot resolve myself, unfortunately. I have a RPI3 device with FreeBSD on it, which I want to act as a router with firewall. Mu initial intent to use it as a sort of MITM router that I can control and adapt firewall needs for the purposes of testing...
  6. K

    PF Quick pf.conf review?

    Hello there. I've a tiny FreeBSD VPS with two jails running within it. I'm reaching out the jails remotely via SSH (First jail: My.public.IP.addr:4215 - 2nd one: my.public.IP.addr:4214) by having the config below. lo1 = My Jails' virtual local interface I created via rc.conf. I don't know if...
  7. vermaden

    Solved Port Forwarding into NAT Bhyve VM under pf(4) Firewall

    Hi, I have successfully setup NAT on pf with this in /etc/pf.conf file: nat on wlan0 inet from 10.1.1.0/24 to any -> (wlan0) round-robin I am now trying to achieve the same what is available out of the box on VirtualBox - port forwarding. For example one of my Bhyve virtual machines is...
  8. K

    PF Tightening PF conf even further for my mail server?

    Hello there. I've completed setting my mail server up. Just for the sake of security and connection stability, I tried to implement PF firewall as well, for my services. Before I proceed and move my mail server into production, could someone please take a quick look at my pf.conf file and give...
  9. Sergei_Shablovsky

    BSD-based fw/router: ZFS on SSD RAID10 efficiency

    Hi FreeBSD Gurus! In case using bsd-based bare metal rack server as a gate fw/router: 1. How effectively would be using ZFS (in comparison to GPT, etc) file system in hardware RAID10 (4 of SSD TLC/MLC drives) ? 2. Is separating of /var, /tmp (also may be /usr) to another disk's logical volume...
  10. L

    PF How to rate limit ping?

    I could use some help with a pf firewall I can't get to work. For some reason, ping/icmp won't get blocked by overload. This works for ssh connections: table <bruteforce> persist block drop in log quick on $ext_if inet proto tcp from <bruteforce> port 22 pass in log on $ext_if inet proto tcp to...
  11. L

    PF pf not working (state-mismatch)

    I using pf firewall on FreeBSD for socket IPV6 IPV6_BINDANY option. In OpenBSD tested pf, good working. But not working in FreeBSD. # test.c: #include <stdio.h> #include <arpa/inet.h> #include <unistd.h> #include <netinet/in.h> #include <sys/socket.h> const char...
  12. repcsi

    PF Update from 12.2-RELEASE-p11 to 12.3-RELEASE-p7 broke my PF internet router/firewall

    Hi all, I updated my internet facing router/firewall from 12.2-RELEASE-p11 to the latest 12.3 release: 12.3-RELEASE-p7. I'm using a custom kernel with ALTQ support as it helps with my transfer speeds. More info on this below as I even disabled ALTQ to try to solve this issue. The issue: after...
  13. T

    IPFW IPFW server, acting as a firewall (how to pass traffic ?)

    Hello everyone, Experimenting IPFW, I would really appreciate some help to improve my abilities ! I actually know how to use it as a workstation firewall, but now, I would like to learn how to use it as an easy full firewall (just for experimenting). Here is an easy network map describing what...
  14. JozanOfAstora

    Solved [noob] pf, ipf and ipfw

    Hi, which firewall should I choose between pf, ipf and ipfw for a home application or a small business? I've been using pf on my local laptop with a very minimal configuration, just to close every ports except the ones I need on my local network. But which one would you recommend for a...
  15. JozanOfAstora

    PF pf syntax error

    Hi, I am trying to follow this guide: https://www.vultr.com/docs/building-your-own-mail-server-with-freebsd-11 Unfortunately when copying the pf config and starting the daemon (or reloading the config with pfctl -f /usr/local/etc/pf.conf) I get this output: /usr/local/etc/pf.conf:27: syntax...
  16. D

    Solved Pkg: "No address record" with http ports open (PF)

    I'm using a fairly strict PF ruleset on a server and I am having trouble with updating the system. I have port 80 and 443 open (http and https respectively) but I get a "No address record" error when I try to update the repositories. I also have port 21 open in case it used ftp, but it...
  17. D

    IPFW Auditing Firewall Rules and settings against best practise and security risk

    Hi All , I need to audit the rules and settings of a FreeBSD firewall against best practice ""my first time", the client has sent me a text file . Is there a software I can use to make this analysis? If not, what is the best process for auditing this FreeBSD firewall? Thank you
  18. decuser

    Other Confusing documentation

    Having read, and re-read Chapter 31. Firewalls, I'm hugely disappointed in the lack of clear direction offered by the author. As a reference, it's not horrible, but for someone looking to turn on the firewall so their workstation or server is relatively safe, it's not good. I'm not a new user...
  19. decuser

    Other Choosing which firewall to use in 2021 - FreeBSD 13

    OK. I've read man firewall and Chapter 31. Firewall and I'm still a bit uncertain about which firewall to choose. Here's my use case: I have FreeBSD 13 installed on my Lenovo Thinkpad T-430. I alternate between the ethernet connection and wifi. Either way, I only use IPV4. I would like to be...
  20. F

    PF Apache + Ngingx reverse proxy

    Hi, guys! For a while I used for my whmcs setup composed by apache + mod_php as backend and nginx as reverse proxy. I was thinking i'm safe until someone with few proxies succeed to open enough connections and apache eaten whole amount of RAM (2GB). Any idea how to block this kind of...
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