Re: [pfSense-discussion] FreeNAS

2009-01-24 Thread Rainer Duffner


Am 24.01.2009 um 11:13 schrieb Eugen Leitl:



A customer/friend of mine needs a large (some 10 TByte) online  
storage.



Ten TB?


OpenSolaris 2008.11

That is, if you don't actually want go with one of SUN's new appliances.
What financial value do these 10TB represent?



Rainer

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Re: [pfSense-discussion] Website filtering with pfSense on alix

2008-08-28 Thread Rainer Duffner

Gary Buckmaster schrieb:

Mark Dueck wrote:

Hi everyone,

Is it possible to do website filtering on an Alix board?  I setup some
businesses with gateways using squid and dansguardian to blanket block
the internet, and then allowing access on a per ip basis or allow
certain websites for the rest of the users.  Is this possible on an alix
board using a CF by taking of caching, but using the dansguardian?  I
have see others asking the same, but not seen any replies.

Or can this be setup using rules?

Thanks.
  

Mark,

No, the embedded platform does not work with packages.  Further, squid 
is an extreme resource hog and would kill most Alix board resources 
even under fairly light load.  Lastly, Dansguardian isn't licensed to 
be free for commercial use, so you may well be violating their license 
by installing it for businesses.

-Gary



Well, with rules only, I guess it would work if you only have a handful 
of websites (B2B scenario) that are OK to visit.



Rainer




Re: [pfSense-discussion] Captive Portal on pfsense

2008-07-17 Thread Rainer Duffner

Chris Buechler schrieb:

On Tue, Jul 15, 2008 at 8:38 AM, muhammad panji [EMAIL PROTECTED] wrote:
  

Dear All,
Hi I start searching for option to implement captive portal on my
campus hotspot and I think pfsense captive portal will make it easier.
I'm not really familiar with wireless technology. If i'm not false my
campus bought some Linksys WRT54G Wireless Router. I want to ask :
- What is the difference between Linksys WRT54G and Linksys WAP54G in
case of how the basically operate. Up to now what I know is WAP do
bridging to wired network and WRT do routing.



You would likely deploy WRTs in bridged anyway since you're using them
as just APs, so for your purposes the two should be functionally
equivalent.

  

- If I have four Access Point is that mean That I have to have four
different network which routed to pfsense LAN network?



No, you can bridge all four to the same network.

  



If you have more than one AP, don't you need ones that can do 
mesh-networking, so you can hand-over a connection to another AP, in 
case the user moves?
I'm not very familiar with building large-scale WLANs, but AFAIK, it's a 
little more than just buying enough APs and placing them in the right 
spots...



cheers,
Rainer


Re: [pfSense-discussion] Captive Portal on pfsense

2008-07-17 Thread Rainer Duffner

RB wrote:



I'm not very familiar with building large-scale WLANs, but AFAIK, it's a
little more than just buying enough APs and placing them in the right
spots...



I am, and it actually is just that.  If you already have UTP ports
within 300' the AP locations, it's by far the most effective route -
then you only have to worry about channelization and overlap. 




That's what I was thinking: isn't it a problem to have to APs with same 
SSID (and maybe the same channel) in reach of each other?
Don't the clients get confused? Or are the drivers usually smart enough 
not to flap between the two?


Sorry, I'm just curious...


Regards,
Rainer


[pfSense-discussion] [Fwd: Re: Linux SMP network performance measurements]

2008-01-15 Thread Rainer Duffner
Hi,

this may be of interest to people here.
Via the FreeBSD-current mailing-list - apologies, if you read that, too.


cheers,
Rainer
---BeginMessage---
Stefan Lambrev wrote:
 Thierry Herbelot wrote:
  gives some measurements on various tweakings of an SMP machine with
  4 Xeon processors (it *shows* a nice improvement when using more
  CPUs and more bonded Ethernet interfaces).
 
  Has some the machine (and the time, obviously) to make some of the
  same measurements with the latest FreeBSD versions ?

 I'm planning to test network performance on FreeBSD + bridged
 interfaces, very soon, but my test servers are not so powerful as
 the server from this page :) Best that I'll have is 1x quad core
 processor, 4 port gigabit intel network card and 2GB RAM.

I did some testing about a year or two ago and with a recent current
of about 2 months ago.  I found that generally SMP was a performance
regression for the workload I tested - forwarding and filtering.
The single most significant contributer to network performance is
level 1 cache size.

I believe that the extreme cost of mutex acquisition on Intel cpus
is the main culprit for SMP network performance regression.  Coupled
with miniscule L1 cache size on the entire Intel CPU product line
gives pretty poor network performance.

Forwarding (routing between multiple interfaces) and filtering
(ipfw) IIRC with quad Intel e1000 NIC:

Dual Intel Xeon 2.8GHz: 240Kpps  12k L1 cache
Single Intel Xeon 2.8GHz:   380Kpps  12k L1 cache
Core 2 Duo 1.8Ghz:  420kpps  12k L1 cache
Single Pentium-M 1.8GHz:550Kpps  32k L1 cache
Dual AMD opteron 2GHz:  890Kpps  64k L1 cache
Single AMD opteron 2GHz:970Kpps  64k L1 cache

All these hosts had 255 vlan interfaces with about 3000 routes and
about 3 firewall rules, with a good spread of packets between
the interfaces with polling and fastforwarding.  I struggled to
generate enough packets to load the AMD routers.

I was interested in SMP due to additional processing for netflow
accounting and packet rate monitoring for DDoS detection and
mitigation.

I recomend to anyone using FreeBSD as a router or for any serious
workload to just plain forget about using Intel CPUs.

Ian

--
Ian Freislich

___
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---End Message---


Re: [pfSense-discussion] full instalation on 4 GB SSD

2007-08-29 Thread Rainer Duffner
Paul M wrote:
 Eugen Leitl wrote:
   
 I was thinking a real 2.5 SSD would have a MTBF comparable to a
 real hard drive (SanDisk claims 2 Mh MTBF, can't find any such
 for Hama SSD, which is a bargain at about 100 EUR for 4 GByte,
 which probably already answers my question).
 


 I think that proper ssd units designed to replace a regular magnetic
 hard drive have to have very sophisticated wear-levelling algorithms,
 and probably have an intermediate store for written data, e.g. some
 battery-backed SRAM or non-wearable memory.
   


Yeah, like this one:
http://www.superssd.com
Of course, unless you're prepared to spend a six-figure-sum, you don't
need to think about buying one of those kits.

For a busy mail scratch-dir, this should do wonders.
For a firewall: probably overkill...



Rainer


Re: [pfSense-discussion] full instalation on 4 GB SSD

2007-08-28 Thread Rainer Duffner
Curtis LaMasters wrote:
 Honestly I don't know the answer to your questions but keep this in
 mind, pfSense loads from disk/flash/cd and then run's completely from RAM.


I think this is true only for the embedded version.
The full version (with packages et.al.) will quite probably use disk I/O.

I've thought about using a 4 GB Microdrive, but never got around doing it.



cheers,
Rainer



Re: [pfSense-discussion] Dynamic DNS

2006-10-16 Thread Rainer Duffner

Stefan Tunsch wrote:

I'm talking about the integrated dyndns client.

Luckily I installed the ADSL with the dynamic ip address on the WAN
interface...

How can I report an IP other than the WAN IP? 
  



I think he said next version.
Or did I misread that?

Bear with them - they're probably going to have to take a vacation, now 
that the release is actually out

;-)




cheers,
Rainer


Re: [pfSense-discussion] IDS yet?

2006-10-04 Thread Rainer Duffner

Daniel S. Haischt wrote:

Beside that I always thought Snort is first and foremost
an IDS and not an IPS...

  


It can do both, IIRC.
But commercial IDS/IPS products have been blurring the line between 
these two purposes for years - upto a point where I think there is no 
real distinction possible anymore.
Just like various intelligence-techniques have blurred the line 
between packet filter and application firewall in the 
commercial-firewall world.


At least in this respect, pfSense is still a clear packet-filter only ;-)
And ideally, it should stay this way while analyzing packet-content 
should occur elsewhere (because it also needs much more CPU-power).




cheers,
Rainer


Re: [pfSense-discussion] artwork

2006-06-21 Thread Rainer Duffner


Am 21.06.2006 um 21:18 schrieb Scott Ullrich:


On 6/21/06, Bill Marquette [EMAIL PROTECTED] wrote:
That's kind of inflamatory, but change the theme to pfsense and  
you'll

have the ugly old look back.


It is indeed fnlamatory and I would go as far to say it is rude and a
slap in the face to Holger, one of the people that have helped this
project more than anyone else (even me).

An apology is in order otherwise I will be deleting any ticket that I
ever see with your email address attached.




I wouldn't go so far - this is really a question of taste. It's his  
opinion.


OTOH, I can't imagine making the above (=thread-opening) statement  
myself - but I never used m0n0wall myself, either.


This is an OSS-project, for which 95% of all conflicts (and 100% of  
the this looks...it should look like-conflicts) should be  
endable with a simple

Either put up or shut up




cheers,
Rainer



Re: [pfSense-discussion] No altq support on linitx.com appliances? Also, plug for packaging on embedded version.

2006-05-02 Thread Rainer Duffner

Christoph Hanle wrote:

Carl Youngblood schrieb:

On 5/2/06, Scott Ullrich [EMAIL PROTECTED] wrote:

On 5/2/06, Carl Youngblood [EMAIL PROTECTED] wrote:
 I am new to pfsense and have a question and a suggestion.  I just
 installed pfsense on a brand new appliance that we bought from
 linitx.com, found here:

 
http://linitx.com/product_info.php?cPath=4products_id=909osCsid=9be4eef80f6c2fa682ad294a2e92d3dc 



 It seems to work well, except that when I go to the traffic shaping
 menu item, it says that my interface doesn't support altq.  This is
 critical to us, as we use voip for our phone system.  Any 
suggestions?

  I would be surprised to hear that there isn't some way to do QoS on
 this brand new device.

Which device?  If it says that ALTQ is not supported then its not,
unfortunately.


Realtek 8169 for the 5 100 Mbit ports
Realtek 8139 for the 1 Gigabit port


Imho are these chipsets a joke and not usable in a firewall or router.
You will get a lot of trouble with this scrap.
I had similar boxes running with pfSense and m0n0wall and trouble with 
the stability and performance of some connections. After replacing the 
boxes with smaller PCs with real NICs the problems are vanished.






I think the latest-generation RealTek's are not that bad - I may be 
wrong, because I avoid them like the plague myself, but ISTR having read 
somewhere that the latest generation is somehow better than the the 1st 
generation (on which the comment in the source is really targeted).




cheers,
Rainer



Re: [pfSense-discussion] No altq support on linitx.com appliances? Also, plug for packaging on embedded version.

2006-05-02 Thread Rainer Duffner

Chris Buechler wrote:

Rainer Duffner wrote:
I think the latest-generation RealTek's are not that bad - I may be 
wrong, because I avoid them like the plague myself, but ISTR having 
read somewhere that the latest generation is somehow better than the 
the 1st generation (on which the comment in the source is really 
targeted).


I've heard the same thing.



Just stumbled upon it:

Theo mentioned it in the latest interview with kerneltrap.
http://kerneltrap.org/node/6550

;-)




cheers,
Rainer


Re: [pfSense-discussion] Setup advice wanted, devices for public library

2006-03-28 Thread Rainer Duffner


Am 29.03.2006 um 00:25 schrieb Josh Stompro:

  Anyone have recommendations for 2.5 inch hard drives for this  
sort of application?



Hitachi.
http://www.hitachigst.com/tech/techlib.nsf/techdocs/ 
79EC6FC280F57A2A86256D630067D507/$file/Travelstar_E7K60_100504.pdf





Has anyone thought of how a pfSense manager would work, something  
that would control a large deployment of pfSense Firewalls.





I guess this is on the road-map (or in the heads of the developers) -  
why else go with the overhead of XML-RPC for the communication  
between front-end and backend? At least, that's what I make out of it.
I hope it will be available at some point. - I haven't thought about  
how it should look like - perhaps one of the developers would like to  
comment on how much of the groundwork is already done and what is  
missing?
I'm more concerned about how on earth I'm going to collect and  
correlate the logs.
Does the prelude pflog-lml for OpenBSD also work on FreeBSD (I didn't  
have a chance, yet, to try it out)?





cheers,
Rainer





Re: [pfSense-discussion] throughput - cpu, bus

2006-03-14 Thread Rainer Duffner


Am 14.03.2006 um 20:52 schrieb Greg Hennessy:




I'd love to get the chance to throw an Avalanche at a decent system  
running

PF to see what it really can stand upto.



Andre Oppermann is working on that.
http://people.freebsd.org/~andre/
But the results won't show-up until 7.0 is released, which looks to  
be sometime in 2007.

http://www.freebsd.org/releng/index.html


Rainer





Re: [pfSense-discussion] pfSense merge with freebsd?

2006-03-10 Thread Rainer Duffner

DarkFoon wrote:


So the question is, if I jumper the drive to limit it to 32GB so the
darn computer will actually boot (the BIOS freezes detecting the drive),
can I get FreeBSD to recognize all 300GB? I probably should check the
FreeBSD man pages, but being as ill as I am right now, I feel like
asking you guys first (ya'll seem nice enough ;) )

  



You can try dangerously dedicated mode - now under the wizzard-mode 
in the fdisk-editor, where you create the partitions.


But I guess any 75$ PC from ebay will correctly detect and work with a 
300 GB disk nowadays.

Is your time worth so little?
:-)


Rainer



Re: [pfSense-discussion] Clients... ugh

2006-02-01 Thread Rainer Duffner

DarkFoon wrote:


APPLIANCE! That's the word I was looking for! Thank you!

Yes, my client my client means what you said:
 


an appliance, which is plug, go to web interface, click, click,
click and it works.
   


He has one of those (appliance) already, but like I said, its some piece of
crap. It can't do hardly anything. I mean, I use m0n0wall (because I like
using a CD-ROM instead of a harddisk) and it's got so many functions that I
don't use. And pfSense has more, but my client could use some of them.

I didn't know that I could do pfSense on a WRAP. I thought pfSense needs a
harddisk (for swap and such), and I thought WRAP uses CF (which swap will
wear out quickly).
But the idea of a 1u rackmount unit is nice. I'll still look around for some
commercial appliances that have the same features, but I'll try to push for
pfSense with this renewed information.
 




IMO, the only thing that can match and exceed pfSense is a 
Juniper-Netscreen Appliance.

(I think they can do Active-Active clustering for bridging, too).
But the bigger ones can be 10x as expensive as a similar machine built 
with pfSense.

Multiply by 2 for a HA-solution...
If you can afford it, go Netscreen.
If not, pfSense or raw OpenBSD ;-)


My question still stands, though: does anybody know of a commercial
(linksys, d-link, and such) firewall/router appliance (that's so much faster
to type) with the features my client wants?
thanks
 



http://www.juniper.net/products/integrated/

I see that Tyan now also makes appliance-barebones:
http://www.tyan.com/products/html/network.html

I'm not sure if the onBoard cryto-accelerator really supports FreeBSD - 
Cavium do mention FreeBSD on their website and it seems that some boards 
of the series are actually supported.


Those would really make killer-appliances, but I haven't seem them sold 
anywhere and the price tag is probably high.





cheers,
Rainer





Re: [pfSense-discussion] block port 25

2005-12-27 Thread Rainer Duffner

dny wrote:


On 12/24/05, Rainer Duffner [EMAIL PROTECTED] wrote:
 




   



exactly what i need.

can you please give more detailed?
perhaps step-by-step guide will be greatly appreciated.

 





This reading-list might be useful:
http://www.oreilly.com/catalog/fire2
http://www.oreilly.com/catalog/mfreeopenbsd
http://www.oreilly.com/catalog/postfix

[insert various other mailserver-oriented books/links here, personally 
I'd use qmail, but others hate it, so use whichever you find easiest]


Maybe a categorie for these types of questions could be added to the wiki.





cheers,
Rainer


Re: [pfSense-discussion] Newbie Q: security of php on perimeter firewall

2005-11-28 Thread Rainer Duffner

Chris Buechler wrote:


Sanjay Arora wrote:


Hi all

Just joined the list. Am mostly using IPcop  other Linux flavours for
perimeter firewalling. Needed ISP WAN-link balancing  failover, hence
my search for a new option. Also have started experimenting with
freebsd, so choice was limited to either freebsd or linux.

Have downloaded the iso...will install on a Pentium III 550 MHz and
revert with feedback within the week.

My thought is that any perimeter firewall should be a minimal design.
Would not having php on pfsence make it vulnerable to php
vulnerabilities, as well as those of apache. Haven't exactly tried it,
so really haven't the right to comment on it but would the community
please comment on this and other similar issues inherent in this
architecture design?

 



This part of the architecture has changed slightly from m0n0wall I 
believe, so if I go astray here, somebody kick me back into shape.  ;)
Basically, you can't get to PHP without first being authenticated.  At 
this point, if you're authenticated, you have root access to the box.  
So who cares about any PHP vulnerabilities when you already have root 
access?  And, as others said, most PHP problems are from sloppy PHP 
code, not issues within PHP itself.  Besides, the ability to even 
attempt to login is restricted to LAN only by default, and if you're 
in a situation where you have to worry about what your internal users 
can attempt on the firewall, you can and should restrict that 
further.  It's not like PHP is doing the actual firewalling.





As an addition to this:
If somebody doesn't like PHP on his firewall, he can just go back, 
install OpenBSD 3.8 and use vi to edit the rulesets and all the other 
configuration-options (VLANs, NAT, VPN etc. pp.).


Until there's a multi-user, multi-customer capable interface that allows 
several virtual firewalls to be administered by different 
clients/customers, I'm not going to worry about PHP-security one 
single second.


Firewalls, which are managed by a fat-client GUI also had their share of 
vulnerabilties precisely because the communication between the GUI and 
the firewall was badly designed or implemented.




cheers,
Rainer



Re: [pfSense-discussion] Restricted viewing...

2005-10-28 Thread Rainer Duffner

Scott Ullrich wrote:



Sure its possible.   Are we planning to do this soon?   Not on the list.
 




I'd also vote for pushing this far behind.
Perhaps somebody has got an idea how to get a per-customer 
user-interface implemented so that the individual customers can view AND 
edit their own rules.
I.E. to designate vlan20, vlan21 and vlan22 to customer Mr X and let him 
work out the rules.


Everything else can be dealt with other means (I plan to syslog to 
another server and try to collect the data in Prelude 
(http://www.prelude-ids.org) and IMO no developer-minute should be 
wasted on this matter otherwhise.




cheers,
Rainer




Re: [pfSense-discussion] FFS bad disklabel

2005-10-07 Thread Rainer Duffner

Rajkumar S wrote:


Scott Ullrich wrote:


Try out http://www.pfsense.com/~sullrich/FreeSBIE.iso which has a few
installer tweaks.   We're still actively hunting this bug down.



Still the same error. I have accepted all default options. No seperate 
partitions, full 40GB in a single slice and in that a single / and swap.




I think you must use a disk that is (much) smaller.
9 GB SCSI worked for me, finally.
Of course, pfSense needs to be fixed, too, but in the meantime, that's 
the best solution.

Or is it motherboard-dependent?
This is on rather old P3-motherboards, does it work on modern Socket 458 
or 604 (or 754 or 939?) motherboards?


Because if not, I will have serious trouble finding such disks for our 
production-server...new disks especially. Who wants to build a critical 
firewall from ebay-parts?

;-)


cheers,
Rainer