similar to: Packet flow through IPFW+IPF+IPNAT ?

Hi! I'm trying to increase security on my FreeBSD 4.8 firewall/DSL router/VPN router. My problem is with firewalling the VPN part. I'm using a tunnel to a RedHat 7.1 box running FreeS/WAN. This tunnel allows traffic from my internal net (172.17.0.0/24) to that box only: spdadd 172.17.0.0/24 $REDHAT/32 any -P out ipsec esp/tunnel/$MYADDR-$REDHAT/unique; spdadd $REDHAT/32 172.17.0.0/24

I have a FreeBSD box acting as a firewall and NAT gateway I would like to set it up to transparently pass IPSec packets -- I have an IPSec VPN client running on another machine, connecting to a remote network. Is there a way to do this? I can't find any hints in the man pages.

Hi all: I have strange probelm with rc.conf. I set up ipfw (compiled into kernel) on freebsd-5.4 and it doesn't seem to load ipfw rulesets (it uses default ruleset 65335 locking out everything). I have to do "sh /etc/ipfw.rules" in order to load the rulesets, once I did that, I can access the box from remote locations here is my rc.conf: host# more /etc/rc.conf

Hi, first i must tell you, that my english is not the best, i hav learned my english from manpages and documentation. Please excuse this. I have setted up a Box w/FreeBSD 4.7-RELEASE for connecting to the w3 through an DSL/ATM-Connection. Now i know the stateful handling of firewall-rules under linux with iptables.In the second i have understand that FreeBSD comes with the netfilter-extensions.

I want to run a non-global zone as a virtual router and run ipnat inside the non-global zone, however, when I try to enable routing it can''t find route:default or network/ipfilter. I''m using exclusive IP inside the zones and using OpenSolaris 2008.11 build 110. I''ve tried sparse root and whole root zones without success. I''ve read blogs and posts and

I've had ipf working on a few 5.3 servers for quite awhile. Not too long ago some developers had to do some coding work and were coming from dynamic IP's. I (reluctantly) opened up SSH to the world. Immediately I started seeing the attacks where bots of some sort would try to break in with a variety of different users. So, I (thought) I closed it up again and told the developers to use a

Hi, [I have added freebsd-security to recipient list as I consider this issue a security risk] Paul Schenkeveld wrote: > Hello, > > On Fri, Jul 14, 2006 at 01:26:38PM +0300, Ari Suutari wrote: >> Hi, >> >> Does anyone know if there are any plans to bring >> pf boot-time protection (ie. /etc/rc.d/pf_boot and >> related config files) from NetBSD to FreeBSD

Hi, I need to know what the implications are to make use of the hosts.allow file on a FreeBSD Production Server (ISP Setup)? The reason I'm asking, is that I've recently decommisioned a Linux SendMail Server to a FreeBSD Exim Server, but with no Firewall (IPTABLES) yet. Besides the fact that it only runs EXIM and Apache, is it necessary to Configure rc.Firewall? or can I only make use of

I'm setting up a server where I plan to use Jails to improve security I also have installed and am configuring ipfilter. Here are my questions: Because I'm using Jails, I will have to have multiple ip aliases on the network interface. I will use ipfilter to specify what can go to each of the addresses. (e.g., allow only incoming to port 80 on the jail running apache). Another

Just rebuilt and installed/world kernel: FreeBSD 4.8-STABLE #0: Fri Apr 11 14:34:37 EDT 2003 Using the latest Makefile for squid25: # fgrep \$FreeBSD /usr/ports/www/squid/Makefile # $FreeBSD: ports/www/squid/Makefile,v 1.100 2003/04/09 08:31:30 adrian Exp $ Modified with: # fgrep CONFIGURE_ARGS Makefile |fgrep -v \# CONFIGURE_ARGS= --bindir=${PREFIX}/sbin --sysconfdir=${PREFIX}/etc/squid \

Hi, I plan to connect to remote Asterisk that will terminate calls to ISDN primary channel. I'd certainly like to secure this type of service, so would kindly ask for any advice on how to secure this authentication as much as reasonably possible. Since there is long IP route I guess VPN will take too much additional bandwidth... Regards, Robert.

Hi All, I currently have setup a site to site vpn using racoon on my freebsd firewall. All is well there and I can connect through the vpn when I am on the firewall and get the connection fine. Now I want to be able to connect from other machines through the firewall - this is where I come unstuck, the ipsec policy allows for my external address range to connect through the vpn, but then I would

Hello, I have configured jail for users with sshd ftpd and auth. I started this jail on IP 127.0.0.10(there is an alias on lo0 interface), there was not any bigger problem to start it. But i have a problem with internet in this jail. I can log in to this jail through ssh or ftpd but i can't connect to the internet. I try to set up some kind of nat but it doesn't work. Can anybody help me

Hi, After the option IPFILTER_DEFAULT_BLOCK is specified at kernel conf on FreeBSD 4.8 stable (cvsup'd with tag RELENG_4_8), the machine cannot be ping'd by others on the same network. In addition, the machine cannot ping itself. ping localhost (or 127.0.0.1) -> no route to host ping itself with its own ip address -> no route to host The freebsd box, with an external pppoe

Hi, After the option IPFILTER_DEFAULT_BLOCK is specified at kernel conf on FreeBSD 4.8 stable (cvsup'd with tag RELENG_4_8), the machine cannot be ping'd by others on the same network. In addition, the machine cannot ping itself. ping localhost (or 127.0.0.1) -> no route to host ping itself with its own ip address -> no route to host The freebsd box, with an external pppoe

In http://docs.freebsd.org/cgi/mid.cgi?200402260743.IAA18903 it seems RELENG_4 is vulnerable. Is there any work around to a system that has to have ports open ? Version: 1 2/18/2004@03:47:29 GMT >Initial report > <<https://ialert.idefense.com/KODetails.jhtml?irId=207650>https://ialert.idefense.com/KODetails.jhtml?irId=207650; >ID#207650: >FreeBSD Memory Buffer

Hi all! Short question: could anyone point me to documents regarding topics: jails! & nat & (ipfw|ip tables) - I'm in process to build a new system... Planned layout: NET---router/nat-----gateway:freebsd5.x/nat--------inner net | | | | | L- apache/php (lo_alias1) | L------ mail server (lo_alias2)

I've found out from two different kernel configs that after properly compling kernel with IPFILTER support it causes the system not to boot. Its hard to say, what exactly it does, cause its not a local system. _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to

We're supposed to provide redundant firewall service. I'm wondering if anyone has ever tried to do this and if it's realistic. Basically 2 firewall machines hooked up so if one fails the other will transparently step in. I've googled it to death without much luck. The security issue here lies in that the 2 firewalls can't talk to each other. So if I'm keeping state on

FreeBSD 4.8-STABLE #1: Sun Apr 6 09:38:34 EDT 2003 # $FreeBSD: ports/www/squid/Makefile,v 1.99 2003/03/09 10:59:07 netchild Exp $ ... checking if IP-Filter header files are installed... no WARNING: Cannot find necessary IP-Filter header files Transparent Proxy support WILL NOT be enabled ... I seem to recall that ipf doesn't install its includes per default any longer ? Perhaps