Cómo Cobrar de forma Contundente y Retener clientes (taller)
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Solved: /bsd: carpN: ip_output failed: 65
Hi all Disbling ipv6 on the ifs didn't help. It turned out pf was blocking the outgoing carp advertisements on 2 out of 4 interfaces without logging. Adding keep state (no-sync) to the carp rules, activating them, and then flushing states on both firewalls finally brought the cluster back to normal. Thanks to cd for the help. lg /markus On 01/15/12 16:18, Markus Wernig wrote: Hi all After upgrading to 5.0 (and also on -current) I keep getting those errors for 2 out of 4 carp'd interfaces in a fw cluster pair: /bsd: carp2: ip_output failed: 65 /bsd: carp3: ip_output failed: 65 And effectively, no CARP traffic is seen on those two interfaces, neither in nor out. Both boxes assume master status on the if. I got a gut feeling that this has something to do with ipv6, which I do not use at all on the boxes. My pf ruleset is actually ipv4 only. I do see ipv6 addresses on the phyif and carpif though (which I have not configured). Could it be that I need to add something to my ruleset? Any way to totally disable ipv6 for a test? krgds /markus
Re: /bsd: carpN: ip_output failed: 65
* Markus Wernig liste...@wernig.net [2012-01-15 16:19]: After upgrading to 5.0 (and also on -current) I keep getting those errors for 2 out of 4 carp'd interfaces in a fw cluster pair: /bsd: carp2: ip_output failed: 65 /bsd: carp3: ip_output failed: 65 i bet pf is blocking your carp announcements. 65 is EHOSTUNREACH and exactly the error in that case. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services, http://bsws.de, Full-Service ISP Secure Hosting, Mail and DNS Services. Dedicated Servers, Root to Fully Managed Henning Brauer Consulting, http://henningbrauer.com/
Softraid raid 5 throughput problem
I built a storage server to run the Bacula storage daemon on. My plan was to boot of a usb key then to use the four 2TB sata disks that are in the server as a softraid raid 5 volume. The server in question is a dell poweredge R310, i3 CPU 540 @ 3.07GHz with OBSD 5.0 amd64. I put the OS onto the usb key but the softraid 5 volume seemed realy slow. Sftping files over the local network to the servers softraid volume was taking ages. So as I was short of time I just rebuilt the server installing OBSD into one of the sata disks wd0 Later I connect to the server and made a raid5 volume on the remaining three disks but the speed was really slow to I tried a raid1 on two of the disks and that works fine speed wise. I've tried to get some stats to figure out what's going on raid 5 (wd1, wd2,wd3) Time for newfs command to complete = 1 min 14 secs raid 5 (wd1, wd2,wd3) Time to copy 2.3G file from wd0 onto the softraid5 disk = 5 mins ish raid 1 (wd1, wd2) = 1.8TB Time for newfs command to complete = 4 secs raid 1 (wd1, wd2) copy 2.3G Time to copy 2.3G file from wd0 onto softraid disk = 25 secs As this point I though I'd try raid0 but the server went and hung for some reason. #bioctl -d sd0 #bioctl -c 0 -l /dev/wd2a,/dev/wd3a softraid0 It hung on this command Won't know what happed till I get to the datacenter. Idealy I wanted one large disk but if can't get a quick raid5 working I will just use two softraid raid 1 disks and work around it. Does anyone have any suggestions ? Thanks Keith
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Static or dynamic code analysis software
Hi, Are there any dynamic or static C code analysis tools available for OpenBSD? I've historically used valgrind on Linux and whilst I know it is not compatible with OpenBSD, I'd still like to be able to check that I've not made any hideous cock-ups in my code. A few minutes of poking around the Internet returned nothing useful unfortunately. Best Regards, Chris Smith
Re: Static or dynamic code analysis software
Hi Chris, On Mon Jan 16 2012 12:21, Chris Smith wrote: Are there any dynamic or static C code analysis tools available for OpenBSD? there has been a thread around here [1]. Examples include lint, cppcheck, clang's static analyser and parfait. Yours, Norman [1] http://comments.gmane.org/gmane.os.openbsd.misc/192303
Re: mailserv project
On 01/16/12 02:09, Wesley M. wrote: On Mon, 16 Jan 2012 07:40:57 +0100, Tomas Bodzar tomas.bod...@gmail.com wrote: There's sendmail in base system and there's ongoing work on smtpd by OpenBDS devs (other components are in ports). Anyway you're welcome to start port see http://www.openbsd.org/faq/ports/index.html It is not an other MTA. It is a script with config files, it installs a secure mail server (Administration using a Web interface) Postfix+Nginx+Spamd+Spamassassin+Dovecot+Roundcube+sql database Actually works on OpenBSD 4.8 / 4.9 It doesn't work on OpenBSD 5.0 There's a lot of changes like Nginx/Dovecot/php If someone can update the work : http://[cobwebsite deleted]/ Ah, sounds like you found a good reason NOT to use projects like this. Do this, do that, download this, run that, *poof!* you have a mail server with no idea what you are doing! Punchline: If you don't know what you are doing, don't run your own mail server. Please. If you build a web server and screw it up, generally, you only hurt yourself (depending how bad you do it, of course). However, an improperly maintained or used mail server hurts OTHER residents of the Internet. This is no defense for overly complex or all wrong defaults software, but the ability to build something using tools you don't understand is NOT doing anyone a favor. You have built something that you don't understand, and worse, CAN'T MAINTAIN. That mans your mail server is, right now, BROKE, you just aren't sure how it will show itself yet. You can't run the current release of OpenBSD (note that developers are to 5.1-beta now!), and that's unlikely to change in the future. Worse, WHEN it blows up on you, you won't be able to fix it (mail servers do this. They tend to quickly show the difference between real administrators and button-pushers). Why do you use OpenBSD? Perhaps because it gives you better than Well, it seems to work, ship it! construction. So..why do you settle for that with your finished project? Nick.
Re: Static or dynamic code analysis software
Chris Smith wrote [2012-01-16 13:21+0100]:
Are there any dynamic or static C code analysis tools available for
OpenBSD? [swoosh]
You may try llvm from packages, it aims to have a good analyzer.
lint(1) is in base.
I'd still like to be able to check that I've not made any
hideous cock-ups in my code.
You may do manual code adjustments, as in
ret
fun(args)
{
var;
nyd_enter;
[non_crashing_]asserts[_jumps];
[nyd wherever]
jleave:
nyd_leave;
return;
}
and then define the nyd_* series to something useful (not-yet-dead
peeps or collection of profiling info, as desired).
This works for many years quite well for me (userland).
A few minutes of poking around the Internet returned nothing useful
unfortunately.
Well, if you're running Xorg(1), xeyes(1) may help you to do the
job if you're happily distracted (due to whatever reasons).
Best Regards,
Otherwise the usual rules may help you:
- make functions as small as possible (much less than a screenful
of lines),
- place useful comments in the code,
- implement tests for all possible and impossible usage cases
(easily possible with non-crashing assertions)
- ask yourself with all possible seriousness why you can't wait
for C 2015 which will finally introduce a garbage collector,
instead of manually fooling around with memory pointers today!
Until then malloc(3) and its MALLOC_OPTIONS may help you a bit,
too.
- And always revisit your code some time after you have forgotten
what it is for; may you never have the material pressure to
release it at an earlier time.
Chris Smith
May the juice be with you.
--steffen
Re: Softraid raid 5 throughput problem
On Mon, Jan 16, 2012 at 1:12 PM, keith ke...@scott-land.net wrote: I built a storage server to run the Bacula storage daemon on. B My plan was to boot of a usb key then to use the four 2TB sata disks that are in the server as a softraid raid 5 volume. The server in question is a dell poweredge R310, i3 CPU 540 @ 3.07GHz with OBSD 5.0 amd64. I put the OS onto the usb key but the softraid 5 volume seemed realy slow. Sftping files over the local network to the servers softraid volume was taking ages. So as I was short of time I just rebuilt the server installing OBSD into one of the sata disks wd0 Later I connect to the server and made a raid5 volume on the remaining three disks but the speed was really slow to I tried a raid1 on two of the disks and that works fine speed wise. I've tried to get some stats to figure out what's going on raid 5 (wd1, wd2,wd3) Time for newfs command to complete = 1 min 14 secs raid 5 (wd1, wd2,wd3) Time to copy 2.3G file from wd0 onto the softraid5 disk = 5 mins ish raid 1 (wd1, wd2) = 1.8TB B Time for newfs command to complete = 4 secs raid 1 (wd1, wd2) copy 2.3G Time to copy 2.3G file from wd0 onto softraid disk = 25 secs As this point I though I'd try raid0 but the server went and hung for some reason. #bioctl -d sd0 #bioctl -c 0 -l B /dev/wd2a,/dev/wd3a softraid0 It hung on this command Won't know what happed till I get to the datacenter. Idealy I wanted one large disk but if can't get a quick raid5 working I will just use two softraid raid 1 disks and work around it. Does anyone have any suggestions B ? If you are concerned about a speed then RAID5 (or similar) is (and will not be) not a good choice with any filesystem http://constantin.glez.de/blog/2010/01/home-server-raid-greed-and-why-mirrori ng-still-best Thanks Keith
mg name origin
Anyone know the history behind mg being called mg? THis in the mg tutorial (/usr/share/doc/mg/tutorial): The mg editor was originally named MicroGNUEmacs. The name was changed to mg at the request of Richard Stallman,... The second sentence suggests Richard Stallman suggested the name mg but in the README we have: Mg was formerly named MicroGnuEmacs, the name change was done at the request of Richard Stallman. Which suggests he only requested the change, not the precise name. Anyone know? mark
Re: Softraid raid 5 throughput problem
On Monday 16 January 2012, keith wrote: I built a storage server to run the Bacula storage daemon on. My plan was to boot of a usb key then to use the four 2TB sata disks that are in the server as a softraid raid 5 volume. The server in question is a dell poweredge R310, i3 CPU 540 @ 3.07GHz with OBSD 5.0 amd64. I put the OS onto the usb key but the softraid 5 volume seemed realy slow. Sftping files over the local network to the servers softraid volume was taking ages. So as I was short of time I just rebuilt the server installing OBSD into one of the sata disks wd0 Later I connect to the server and made a raid5 volume on the remaining three disks but the speed was really slow to I tried a raid1 on two of the disks and that works fine speed wise. I've tried to get some stats to figure out what's going on raid 5 (wd1, wd2,wd3) Time for newfs command to complete = 1 min 14 secs raid 5 (wd1, wd2,wd3) Time to copy 2.3G file from wd0 onto the softraid5 disk = 5 mins ish raid 1 (wd1, wd2) = 1.8TB Time for newfs command to complete = 4 secs raid 1 (wd1, wd2) copy 2.3G Time to copy 2.3G file from wd0 onto softraid disk = 25 secs RAID 5 with softraid(4) is not ready for primetime - in particular it does not support scrub or rebuild. If you have a single disk failure you will get to keep your data, however you will need to dump/rebuild/restore. I'm not specifically aware of performance issues, but I'm not entirely surprised either - I'll try to take a look at some point. RAID 5 writes will be slower, but not that much slower... As this point I though I'd try raid0 but the server went and hung for some reason. #bioctl -d sd0 #bioctl -c 0 -l /dev/wd2a,/dev/wd3a softraid0 It hung on this command Won't know what happed till I get to the datacenter. I'm guessing that you did not clear the existing RAID 1 metadata first, in which case you'll probably have a divide by zero with a trace that ends in sr_raid1_assemble() - there is a bug there that I hit the other night. Idealy I wanted one large disk but if can't get a quick raid5 working I will just use two softraid raid 1 disks and work around it. Does anyone have any suggestions ? I'd stick with RAID 1 - you can use more than two disks, which will give you increased redundancy and should improve read throughput. Obviously you'll have less capacity though. -- Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone. -- Ayn Rand
Re: Softraid raid 5 throughput problem
On 16/01/2012 15:43, Joel Sing wrote: On Monday 16 January 2012, keith wrote: I built a storage server to run the Bacula storage daemon on. My plan was to boot of a usb key then to use the four 2TB sata disks that are in the server as a softraid raid 5 volume. The server in question is a dell poweredge R310, i3 CPU 540 @ 3.07GHz with OBSD 5.0 amd64. I put the OS onto the usb key but the softraid 5 volume seemed realy slow. Sftping files over the local network to the servers softraid volume was taking ages. So as I was short of time I just rebuilt the server installing OBSD into one of the sata disks wd0 Later I connect to the server and made a raid5 volume on the remaining three disks but the speed was really slow to I tried a raid1 on two of the disks and that works fine speed wise. I've tried to get some stats to figure out what's going on raid 5 (wd1, wd2,wd3) Time for newfs command to complete = 1 min 14 secs raid 5 (wd1, wd2,wd3) Time to copy 2.3G file from wd0 onto the softraid5 disk = 5 mins ish raid 1 (wd1, wd2) = 1.8TB Time for newfs command to complete = 4 secs raid 1 (wd1, wd2) copy 2.3G Time to copy 2.3G file from wd0 onto softraid disk = 25 secs RAID 5 with softraid(4) is not ready for primetime - in particular it does not support scrub or rebuild. If you have a single disk failure you will get to keep your data, however you will need to dump/rebuild/restore. I'm not specifically aware of performance issues, but I'm not entirely surprised either - I'll try to take a look at some point. RAID 5 writes will be slower, but not that much slower... As this point I though I'd try raid0 but the server went and hung for some reason. #bioctl -d sd0 #bioctl -c 0 -l /dev/wd2a,/dev/wd3a softraid0 It hung on this command Won't know what happed till I get to the datacenter. I'm guessing that you did not clear the existing RAID 1 metadata first, in which case you'll probably have a divide by zero with a trace that ends in sr_raid1_assemble() - there is a bug there that I hit the other night. Idealy I wanted one large disk but if can't get a quick raid5 working I will just use two softraid raid 1 disks and work around it. Does anyone have any suggestions ? I'd stick with RAID 1 - you can use more than two disks, which will give you increased redundancy and should improve read throughput. Obviously you'll have less capacity though. Thanks for the quick answers, If I just create two raid 1 sets on the server then could I just make a raid 0 volume using both raid1's ? Thanks Keith
Re: [bsdmag.org] newsletter
looks like someone either got onto a spam list or their machine is infected... oh joy! On Jan 16, 2012, at 10:14 AM, Software Press wrote: This is the confirmation email. To confirm your email address and to activate on our mailing list click the link: snip
Re: mg name origin
Mark Lumsden wrote: Anyone know the history behind mg being called mg? THis in the mg tutorial (/usr/share/doc/mg/tutorial): The mg editor was originally named MicroGNUEmacs. The name was changed to mg at the request of Richard Stallman,... The second sentence suggests Richard Stallman suggested the name mg but in the README we have: Mg was formerly named MicroGnuEmacs, the name change was done at the request of Richard Stallman. Which suggests he only requested the change, not the precise name. Anyone know? mark I would make a guess that mg stands for Micro Gnu.. but I am not sure as it is only a guess. Anything that gets rid of GNU or stallman is a bonus for me.
Re: NAT Firewalls and Client IPs in SSL Requests
On 14/01/2012, at 12:29 AM, Stuart Henderson wrote: On 2012-01-12, Sam Vaughan samjvaug...@gmail.com wrote: I have a web server handling predominantly https traffic sitting on a DMZ behind a CARP'd firewall of two ALIX 2D3s. Since the firewall is NATting traffic to the web server, the source IP of requests arriving at the web server is always the firewall's CARP address on the DMZ. Do you really have to NAT the source address? That is unusual, most people just use rdr-to which only touches the destination address. Nope, it was a bad set-up! Somehow I overlooked setting my web server's default route after installing it. When debugging the lack of reply traffic from it I came to the false conclusion that the firewall was dropping replies to routable IPs on its internal interface and that inbound NAT was needed. I've now added the default route and restricted NAT to outbound traffic on the external interface and all is good. I'd like the server to see the original client IP. The only solution I can think of is to use relayd, pound etc. as a layer 7 reverse proxy on the firewall that decrypts the SSL and inserts an X-Forwarded-For header. BTW, relayd can also do transparent forwarding (i.e. maintaining the source address in the packets), even with SSL offload. http://www.mail-archive.com/misc@openbsd.org/msg102364.html Looks really handy, thanks for the link, Stuart. Pulling the IP out of the X-Forwarded-For header works just fine for my purposes though so I don't think I need to add the extra complexity of transparent forwarding to my setup. I still prefer the idea of doing the SSL offload on internal machines due to the performance impact on lightweight firewalls. To keep all the reverse proxying centralised on the firewalls that probably means a round trip to do the SSL offload, then a second pass to do the layer 7 filtering and load balancing to the web servers. Sam
Re: mg name origin
I don't think the name of the program ever changed. (Who would want to type MircoGNUEmacs every time you edit a file?) mg used to be an acronym, now it officially means nothing. On Mon, Jan 16, 2012, Mark Lumsden wrote: Anyone know the history behind mg being called mg? THis in the mg tutorial (/usr/share/doc/mg/tutorial): The mg editor was originally named MicroGNUEmacs. The name was changed to mg at the request of Richard Stallman,... The second sentence suggests Richard Stallman suggested the name mg but in the README we have: Mg was formerly named MicroGnuEmacs, the name change was done at the request of Richard Stallman. Which suggests he only requested the change, not the precise name. Anyone know? mark
Re: Softraid raid 5 throughput problem
Drop the RAID 5 and go with a RAID 10 as you were talking about but add a hot spare if you can. RAID 10 doesn't have a parity bit which slows down write times. But if a disk is bad and isn't replaced you can have a bad day. Hot spares have saved my butt more than once. Regards, Dain Bentley -Original Message- From: keith [ke...@scott-land.net] Received: Monday, 16 Jan 2012, 12:14pm To: Joel Sing [j...@sing.id.au] CC: misc@openbsd.org [misc@openbsd.org] Subject: Re: Softraid raid 5 throughput problem On 16/01/2012 15:43, Joel Sing wrote: On Monday 16 January 2012, keith wrote: I built a storage server to run the Bacula storage daemon on. My plan was to boot of a usb key then to use the four 2TB sata disks that are in the server as a softraid raid 5 volume. The server in question is a dell poweredge R310, i3 CPU 540 @ 3.07GHz with OBSD 5.0 amd64. I put the OS onto the usb key but the softraid 5 volume seemed realy slow. Sftping files over the local network to the servers softraid volume was taking ages. So as I was short of time I just rebuilt the server installing OBSD into one of the sata disks wd0 Later I connect to the server and made a raid5 volume on the remaining three disks but the speed was really slow to I tried a raid1 on two of the disks and that works fine speed wise. I've tried to get some stats to figure out what's going on raid 5 (wd1, wd2,wd3) Time for newfs command to complete = 1 min 14 secs raid 5 (wd1, wd2,wd3) Time to copy 2.3G file from wd0 onto the softraid5 disk = 5 mins ish raid 1 (wd1, wd2) = 1.8TB Time for newfs command to complete = 4 secs raid 1 (wd1, wd2) copy 2.3G Time to copy 2.3G file from wd0 onto softraid disk = 25 secs RAID 5 with softraid(4) is not ready for primetime - in particular it does not support scrub or rebuild. If you have a single disk failure you will get to keep your data, however you will need to dump/rebuild/restore. I'm not specifically aware of performance issues, but I'm not entirely surprised either - I'll try to take a look at some point. RAID 5 writes will be slower, but not that much slower... As this point I though I'd try raid0 but the server went and hung for some reason. #bioctl -d sd0 #bioctl -c 0 -l /dev/wd2a,/dev/wd3a softraid0 It hung on this command Won't know what happed till I get to the datacenter. I'm guessing that you did not clear the existing RAID 1 metadata first, in which case you'll probably have a divide by zero with a trace that ends in sr_raid1_assemble() - there is a bug there that I hit the other night. Idealy I wanted one large disk but if can't get a quick raid5 working I will just use two softraid raid 1 disks and work around it. Does anyone have any suggestions ? I'd stick with RAID 1 - you can use more than two disks, which will give you increased redundancy and should improve read throughput. Obviously you'll have less capacity though. Thanks for the quick answers, If I just create two raid 1 sets on the server then could I just make a raid 0 volume using both raid1's ? Thanks Keith
