#emc-devel | Logs for 2007-04-20

[02:03:37] <elson> Hello, all, getting ready to go to the NAMES show.
[02:05:07] <elson> Does anybody know why an Ubuntu system absolutely crawls if it is not connected to the network? I don't expect to have network access at NAMES.
[02:05:46] <elson> Nobody home?
[02:06:35] <jmkasunich> hi
[02:06:56] <jmkasunich> it crawls always, or only during boot?
[02:07:10] <jmkasunich> ISTR booting without a network takes a long time because it looks for the net
[02:07:25] <jmkasunich> I've never noticed problems just running without the net, but I don't do that often
[02:07:47] <elson> No, boot seems ok, logging into KDE takes about 5 minutes, and getting the term emulator to complete the screen takes maybe 3 minutes.
[02:07:58] <jmkasunich> kde?
[02:08:08] <jmkasunich> you're not running stock ubuntu...
[02:08:15] <elson> Whatever the windows manager is.
[02:08:40] <jmkasunich> oh, you are running stock? (stock is gnome)
[02:08:55] <elson> OK, right, it is Gnome.
[02:09:06] <cradek> did you try disabling the ethernet connection?
[02:09:08] <jmkasunich> how fast is the pc?
[02:09:47] <elson> It is a 600 MHz Pentium (3?) with 256 MB memory. It is totally adequate for EMC compiles.
[02:10:01] <jmkasunich> yeah, thats not it (just checking)
[02:10:19] <elson> I did not try disabling the ethernet, then I'll have to get the networking all back when I return.
[02:10:44] <jmkasunich> when you are on the net, how is it set up? dhcp, getting a lease from your local router? or manually configured?
[02:11:11] <elson> No SHCP, manually configured, and with some screwy network config that I use here.
[02:11:19] <elson> No Dhcp
[02:11:32] <cradek> it's probably looking for dns
[02:11:45] <jmkasunich> unless you somehow tell it there is no net, its gonna keep trying I bet
[02:11:48] <elson> MMM, good thinking, DNS!
[02:12:10] <jmkasunich> with DHCP, you get a long lag at boot as it tries to get a lease, then it gives up and runs fine
[02:12:13] <cradek> make sure /etc/host.conf has "order hosts,bind" and then put whatever you need in your /etc/hosts file to make it happy
[02:13:07] <cradek> but yeah, I use dhcp for machines that I sometimes take offline
[02:13:44] <elson> Yes, that is most likely right. I don't know how to dsable it without wiping out the config files I have. I guess I'll just copy them first.
[02:15:26] <elson> DHCP makes a mess. I hard-configured my main server, but DHCP is still on in the cable modem/router, and I don't think they allow me to configure it from my side. If any machine asks for a lease, it gets assigned my one internal IP, and it starts a war with my main server.
[02:16:06] <jmkasunich> ?
[02:16:20] <elson> WEll, I think I have some ideas now as to what to do.
[02:16:48] <jmkasunich> you have a static IP from your ISP, right?
[02:17:04] <elson> Yes, static IP.
[02:17:39] <jmkasunich> dunno what router you have... but my netgear lets me forward incoming traffic to any specific machine (for the server), while still using DHCP
[02:17:41] <cradek> I have dhcp that hands out reserved (192.168) addresses behind my nat
[02:17:46] <elson> And, the modem/router assigns that address to the first DHCP machine that asks, even if another machine is ALREADY at that addr.
[02:18:20] <jmkasunich> I can tell it "assign MAX address xx.xx.xx.xx.xx.xx to IP address yy.yy.yy.yy where yy is the one I forward incoming traffic to
[02:18:29] <jmkasunich> all the other DHCP IPs can be random
[02:18:36] <elson> Umm, the odd way Charted does it is no routing, and your internal nodes with assigned static IPs are at their outside IP addr.
[02:18:44] <elson> That's Charter
[02:18:54] <jmkasunich> not charter - your router
[02:19:01] <jmkasunich> (or don't you have a router?
[02:19:35] <elson> I have no access to the router. I can't even read the error statistics. According to Charer, if I could access the config page, I could change my IP, etc.
[02:19:50] <jmkasunich> oh, you don't have a router in your house?
[02:20:08] <elson> It IS a router, but it is not set to do routing for their static IP setup.
[02:20:22] <jmkasunich> their setup doesn't matter
[02:20:47] <elson> Yes, the router is 3 feet from me, but I am not ALLOWED to access the config page, or really ANYTHING in it.
[02:21:05] <jmkasunich> ok, I asked the wrong question
[02:21:23] <jmkasunich> I should have asked "don't you have YOUR OWN router"
[02:21:32] <elson> In fact, when I attempt to call up the modem/router's Web address, it will respond to pings, only.
[02:22:02] <jmkasunich> so they gave you a dsl/cable modem _and_ a router...
[02:22:17] <elson> I am not allowed to provide my own router for Charter static IP. Oh, my main server is also a router. That's what does all the NAT, DNS, etc. here.
[02:22:35] <jmkasunich> ok
[02:23:32] <elson> Yes, with Covad, I had access to all that config stuff in the DSL modem/router. But, with DSL, you can't change your IP.
[02:24:35] <elson> Anyway, that's not really that important. Just that it is easier not to use DHCP. Or, at least, it seemed simpler to set up fixed local addresses when I started all this.
[02:25:11] <jmkasunich> I have my own router - I bought it at the computer store, not from the ISP, I own it, and I can do whatever I want with it - its INSIDE the modem, and appears to the ISP to be the only computer in the house
[02:26:03] <elson> Oh, one other interesting thing - I tried to do threading with my mini-mill and pWM controller, and had to go back to a previous FPGA configuration. I will have to dig into this when I get back from NAMES.
[02:26:06] <jmkasunich> I told it "assign to the box with MAC address foo (my server), and forward all incoming requests there
[02:26:24] <jmkasunich> it assigns to any other boxes I plug in
[02:26:29] <elson> Yeah, I do all that on my server and only pay for one fixed IP.
[02:26:57] <jmkasunich> but you don't do dhcp on your server (I mean, you don't have it serve DHCP to your net...)
[02:29:20] <jmkasunich> I don't pay for any fixed IPs, thanks to dyndns, but I can see why you might want one
[02:30:11] <skunkworks> I don't run a dhcp server at work.. (disabled in the router).
[02:30:23] <jmkasunich> everything is configured manually?
[02:30:29] <skunkworks> yes
[02:30:37] <elson> same here, manual.
[02:30:47] <jmkasunich> that works fine until you take one of the computers somewhere (like the CNC workshop)
[02:31:03] <elson> Yes, I have several hundred page loads a day, at least.
[02:31:18] <elson> Also, I run my own mail server here.
[02:31:39] <jmkasunich> I just have web, I use fastmail for mail
[02:31:40] <elson> Usually, reconfiguring was no big deal.
[02:32:14] <skunkworks> with xp - you can have 2 different configs - on that does dhcp other that does static local address. works great. (have not played with ubuntu to see if I can do something similar)
[02:32:24] <jmkasunich> XP!
[02:32:28] <jmkasunich> begone you heathen!
[02:32:42] <skunkworks> if it doesn't find a dhcp server - it tries the static address.
[02:32:57] <skunkworks> but yah - it can be a pain.
[02:33:17] <cradek> is "xp" a special distribution of linux, or is it bsd?
[02:33:20] <elson> Yeah, really! UGH
[02:33:27] <skunkworks> sorry ;)
[02:33:27] <jmkasunich> ;-)
[02:33:52] <cradek> I use both kinds of operating systems: linux AND bsd
[02:34:24] <skunkworks> I use microsoft, novell, linux... :)
[02:34:26] <elson> I have so many Linux versions now it is a mess. I'm still running Red Hat at work!
[02:35:03] <elson> I finally shut down my Red Hat 5.2/EMC system.
[02:35:57] <cradek> > uname -a
[02:35:57] <cradek> BSD/386 humpy 1.1 0 i386
[02:36:02] <cradek> > ls -la /bin/ls
[02:36:04] <cradek> -r-xr-xr-x 1 bin bin 98304 Feb 2 1994 /bin/ls
[02:36:33] <elson> Well, I gotta go tinker with this and see if I can shut off the network easily.
[02:36:39] <jmkasunich> uptime?
[02:36:44] <cradek> this was my first machine when starting my current job - still going on the same installation (not used much anymore)
[02:36:47] <elson> Thanks!
[02:36:51] <cradek> goodnight jon
[02:36:55] <jmkasunich> goodnight
[02:36:59] <jmkasunich> and good luck
[02:37:09] <cradek> yeah, have fun at names
[02:37:12] <elson> Thanks, the show is a blast!
[02:38:23] <cradek> cpu = Pentium (unknown speed) model 2, stepping 11
[02:39:01] <cradek> original pentium, F00F bug and all
[02:39:25] <jmkasunich> sounds like the old compile farm - 200MHz Pentiums
[02:39:26] <cradek> about 5 of us used to use this machine, we had X stations
[02:39:39] <cradek> this is probably 133 or 166, don't remember
[02:39:57] <jmkasunich> we still have a 166 upstairs, we run quicken on it
[02:40:05] <jmkasunich> (w95, sorry)
[02:40:15] <skunkworks> floating point bug? I thought that was only on the 60/90 mhz
[02:40:16] <jmkasunich> thats all we use it for, its not network connected
[02:40:36] <cradek> F00F is the "any user can halt the processor" bug I think
[02:40:42] <skunkworks> ah
[02:55:55] <jmkasunich> I resisted the urge
[02:57:52] <cradek> STFW?
[02:58:41] <jmkasunich> yeah
[02:59:02] <jmkasunich> then dave has to go and actually give him the link.....
[02:59:02] <jmkasunich> bah
[09:31:45] <SWPadnos_> SWPadnos_ is now known as SWPadnos
[16:22:16] <busmike> hi
[16:30:41] <skunkworks> Hi
[18:06:32] <alex_joni> hi
[18:06:51] <SWPadnos> hi
[18:06:57] <alex_joni> hey SWPadnos
[18:07:06] <SWPadnos> hey Alex. how goes it?
[18:07:16] <alex_joni> pretty wild lately
[18:07:24] <SWPadnos> cool :)
[18:07:30] <alex_joni> lots of things happening very fast.. not much time for anything else
[18:07:36] <SWPadnos> wedding planning?
[18:07:38] <alex_joni> how are you?
[18:07:42] <alex_joni> SWPadnos: nope, not much yet
[18:07:54] <SWPadnos> fine. just got back from Las Vegas. headed out to Honolulu on Monday :)
[18:08:44] <SWPadnos> an actual vacation with my wife - should be better than (1) a not-quite-vacation with my mother and (2) business trips
[18:09:16] <alex_joni> wow
[18:09:22] <alex_joni> that's something :)
[18:09:28] <SWPadnos> I hope so ;)
[18:10:01] <SWPadnos> I'm trying to convince her that she really would like to go to Australia for our 10th anniversary. gotta get her used to snorkeling and stuff :)
[18:16:53] <alex_joni> heh
[18:17:03] <alex_joni> that's always hard..
[18:17:16] <alex_joni> convince her she "likes" or "wants" something
[18:17:16] <alex_joni> :)
[18:17:23] <SWPadnos> heh
[18:17:42] <SWPadnos> luckily, the weather was cooperating (until this weekend)
[18:17:52] <SWPadnos> several April snowstorms helped a lot ;)
[18:18:22] <alex_joni> heh, I can imagine
[20:06:47] <SWPadnos_> SWPadnos_ is now known as SWPadnos