Re: Question about IP

2007-03-10 Thread Steve Welham
Akin Nomad wrote: > Which of these IP addresses you will not find allocated to PC, which > can work in internet through IP protocol? (you can choose only one > variant) > a: 192.168.0.3 > b: 230.30.3.3 > c: 2001:16c8:ffd7::b:33.255.3.2 > d: 2001:16d8:ffd7::405 > e: 10.40.20.0 > f: fe80::2c0:26ff:20

Re: Crash Report - Desired Info "Quality"?

2006-09-25 Thread Steve Welham
>> Would this be acceptable for filing a crash report, or is this out of >> your scope? > > If you can type in the text, that should be fine. Don't expect multiple > developers to try and make head or tail of a .jpg though... > > As mentioned here recently, if the machine is rebooted rather than

Re: ftp-proxy

2006-09-14 Thread Steve Welham
> In the passive modes session, i counted 4 pf rules being added, as > also in the active modes. But reading ftp-proxy(8) i can see the > following reference: > > I.e., two rules for active mode and three for passive mode. I could > not understand what happened to the others listed in the source

Re: pf table confusion

2006-09-09 Thread Steve Welham
> I'm stuck on some obvious pf table error but I can't see it. > ## Tables (File content shown in brackets) > table file "/etc/tAdmins" ( 192.168.0.3 ) > table file "/etc/tManagers" (192.168.0.2) > table file "/etc/tOperators" (192.168.0.128) > table file "/etc/tHttp-managers" (google

Re: RDR and NAT Combination with a single interface

2006-08-10 Thread Steve Welham
The painless way to do this is with webservers on non-routable addresses, NAT and two interfaces. Is that out of the question? In any case man pf.conf says: "Redirections cannot reflect packets back through the interface they arrive on, they can only be redirected to hosts connected to different

Re: scrub reassemble tcp and nat causes problems with some sites

2006-07-24 Thread Steve Welham
>> Get tcpdumps on both router interfaces with and without the "reassemble >> tcp" option. Do this for a similar file on both a working website and >> broken (ebay) website. > > On both router interfaces? Wouldn't the external if be enough? You're probably right. But my theory is that if you're g

Re: Need help with dns/pf/tcpdump

2006-07-24 Thread Steve Welham
> ns.foo.bar is a dns slave that makes AXFR zone transfer from my server > (mybox). Why is the traffic > blocked on the first lines? What kind of traffic is that? Perhaps I > don't understand DNS fully, > but I thought zone transfers were made using TCP only, and ordinary > queries UDP. Zone trans

Re: scrub reassemble tcp and nat causes problems with some sites

2006-07-19 Thread Steve Welham
> Unfortunately I cannot determine why only some sites have troubles > and that's why I seeking advice here on howto further diagnose > the problem. > > Any hints are appreciated! It's a stab in the dark but I would start with the assumption that some sites are using server load balancing and tha

Re: Change MTU size TCP/IP Packets for 'black hole routers' withi n B SD 3.8 possible ?

2006-06-28 Thread Steve Welham
> so, the ping is ok when its not going trough the tunnel...but via the > tunnel, the MTU size > sinks to 1330 max. > > How to get that not to sink ? You probably can't - your VPN tunnel is adding IP and IPsec headers which cause packets to grow beyond the DSL provider's MTU. (BTW some DSL servi

Re: To forward, or not to forward

2006-05-13 Thread Steve Welham
> My goal with the bridge is to filter all traffic coming in from the > outside world, while allowing servers my servers behind the bridge > to connect freely even if their traffic has to travel out to the > router and back(keep state?). > > My point of confusion is whether or not to tur

Re: PF question : set block-policy drop : spoofed ip (NAT'ed) elicits icmp unreachable

2006-05-10 Thread Steve Welham
> # tcpdump -n -i sis2 'icmp' > 19:21:05.848459 wan_if.ip > external.host: icmp: echo request > 19:21:05.868202 external.host > wan_if.ip: icmp: echo reply > 19:21:05.868499 wan_if.ip > external.host: icmp: host wan_if.ip unreachable > > I was obviously expecting the first two lines but I assumed

Re: Transparent Bridge fail-over?

2006-05-05 Thread Steve Welham
> I have never setup STP but if you were to use a hub you are only > moving the convegence problem to the devices on the end, be it a > router or clients. Instead of a few next hop mac updates between a > switch and the STP bridges , all the devices would need to update thus > increasing total conv

Re: Transparent ISP proxy problem or PF problem

2005-12-07 Thread Steve Welham
> I tried to connect the cable for the internet directly to one > of the client machines behind the firewall (Debian GNU/Linux > 3.1) and the site loads perfectly, so I came to the > conclusion that my PF rules are blocking the packets. So, I > left a minimal PF setup (pass all keep state + NAT

Re: read-only storage media

2005-07-01 Thread Steve Welham
Some hard disks have a write protect jumper. I've got an old Seagate Barracuda (ST3217N) that has this - although it's not something I've ever tried to use. Steve -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt Garman Sent: 01 July 2005 16:06 To: