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[#] Mon Oct 26 2009 01:10:49 EDT from Harbard @ Uncensored

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It also screws up your video drivers...wait at least a week.  All the bugs should be gone by then.

[#] Mon Oct 26 2009 17:32:24 EDT from Ford II @ Uncensored

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it keeps pestering me. :-(

[#] Fri Nov 06 2009 17:43:24 EST from Spell Binder @ Uncensored

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I'm hoping someone here can provide me with some diagnostic advice for an issue I'm seeing on a Redhat 7.2 box (I know, it's old).

The issue is pretty straightforward. The system keeps generating DNS and NIS requests at a rate of around 200-300 packets per second (pps). The host addresses being requested are all within our local network, and, more to the point, appear to be hosts that already have connections to this system--mostly telnet, ssh, and VNC sessions. I've verified that the traffic is DNS or NIS+ by using tcpdump.

I've tried using netstat -ap to try and track down which process(es) could be generating all these requests, but the replies come back too quick, so netstat never shows anything useful.

It would be great if tcpdump could correlate an outgoing packet with a PID, but I can't seem to find an option to make tcpdump do this.

The IT group here wants the system rebooted, but I'd prefer to figure out the root cause in case this issue starts right back up again.

Doesn't Linux, or UNIX in general, cache DNS replies locally? Or is that only if you're running a caching-only DNS server? I could set one up, but that may just mask the underlying problem and result in a higher CPU load.

Anyone have any ideas? Upgrading the OS is definitely a possibility, but not a short-term one.
DNS Binder

[#] Fri Nov 06 2009 17:53:11 EST from Ford II @ Uncensored

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sadly out of my league, these are all udp right? I'd say turn off whatever is answering the dns requests and see if it makes the problem more obvious.

But my first suggestion would be to leave it to the systems heavies...

[#] Sat Nov 07 2009 01:31:51 EST from kinetix @ ColabX

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If you're able to shut down processes and/or daemons one by one until the problem goes away, you may find the one causing the issues.  Mind you, 200-300 dns queries per second may show some cpu load, so top and strace may help verify the process that's causing headaches.

[#] Sat Nov 07 2009 12:59:22 EST from Spell Binder @ Uncensored

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Thanks kinetix!

With the help of strace and stopping some key processes, I found the offenders.

Unfortunately, the offenders are the programs we use to run our automated testing, so I'll have to dig into that to figure out why it's misbehaving.

Thanks again!
DNS Binder

[#] Sat Nov 07 2009 23:06:15 EST from kinetix @ ColabX

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Not at all, glad my suggestions were useful!

[#] Sun Nov 08 2009 18:16:04 EST from Ford II @ Uncensored

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This never happens.

[#] Fri Nov 13 2009 07:51:43 EST from dothebart @ Uncensored

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does any of you know whats going on if top shows 9999 for cpu % for one process?

I'm running loadtests here, and while that process is mostly idle, it shows up that way now and then...

I can't find any sense in that behaviour...

[#] Fri Nov 13 2009 12:35:27 EST from kinetix @ ColabX

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[#] Sat Nov 14 2009 04:04:34 EST from dothebart @ Uncensored

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yes, except that its 2.6.31 with profiling enabled...

[#] Tue Nov 17 2009 15:27:48 EST from skpacman @ Uncensored

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Ok, this may be a dumb, and rather pointless question.
I'm new to the linux scene, so excuse my ignorance.

I'm just curious... what was the standard web browser for linux before FireFox took over?

I'd like to see the browser wars cross worlds onto Linux (which is inevitable anyways)

"IE6 for Linux" vs "FireFox" vs "Unix Google Chrome" vs "some Safari adaptation".... then there's opera, netscape, etc...

[#] Tue Nov 17 2009 15:51:17 EST from fleeb @ Uncensored

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Netscape was the original browser for anything POSIX, I believe.

[#] Tue Nov 17 2009 15:51:36 EST from fleeb @ Uncensored

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(Considering that Netscape was the original browser, period, that's a fairly safe thing for me to say).

[#] Tue Nov 17 2009 16:07:34 EST from kinetix @ ColabX

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Before firefox?  Text mode were lynx and links, gui was netscape navigator.  

These days there's a plethora - konqueror, firefox, chromium, opera, and a smattering of lesser-known ones

[#] Tue Nov 17 2009 17:05:58 EST from IGnatius T Foobar @ Uncensored

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I think there was a build of Mosaic for unix, for that brief time before Netscape showed up. Konqueror has been around for almost as long as KDE itself, but it never really gained a lot of traction until Apple started helping out with Webkit. (Hmm ... is KHTML even maintained on its own anymore, or do they just do all of that work upstream now that Webkit is accessible from Qt?)

Opera has a pretty loyal fan base too, but that came much later.

Going forward it's going to be Firefox vs. Chrome, most likely.

[#] Tue Nov 17 2009 17:15:43 EST from skpacman @ Uncensored

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Going forward it's going to be Firefox vs. Chrome, most likely.

agreed, M$ isn't going to submit anything for the linux community unless it's to better their own products, and any other browsers are too enveloped in their own little projects to expand to anywhere other than M$ or crApple... so it's down to Firefox Vs. Chrome

[#] Tue Nov 17 2009 18:50:44 EST from dothebart @ Uncensored

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mozilla suite was inbetween. and, yes, mosaic was there on *nix first. in fact *nix was the first os to get a browser.

ah, and, there was picojava on sun, and galeon...

lynx, w3m and elinks entered the scene rather late.

[#] Tue Nov 17 2009 20:25:17 EST from Ford II @ Uncensored

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holy fuck this is annoying.
So I upgraded to ubuntu 9.10 stupid me.
vmware doesn't work.
reinstall and it hangs. Find a few articles about it says vmware blames ubuntu, ubuntu blames vmware.
Somebody suggests vmware 7, fine.
Run vuze. no go.
download new vuse, oh sorry, 32bit swt doesn't run in 64 bit jvm.
I've learned from experience there is no 64 bit swt, so I need a 32bit jvm.
update-java-alternatives, no, no more 32 bit option. Thanks guys.
go to sun, download java 1.6-17.
It won't installbecause it required libstdc++so.5 and ubuntu 9.10 only has so.6

All these fucking morons all suck, all the time, and in all their genius brilliance, have managed to break everything.
Fucking assholes, all of thems.

[#] Wed Nov 18 2009 10:15:01 EST from skpacman @ Uncensored

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hense why i havent updated from 8.04LTS....

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