Hello LUVers
I have been experiencing an increase of about 5x factor in my outgoing
network traffic for a while -at least last week - I cannot explain
that change in activity,configuration etc... (It does peak to much
higher level at a specific time, but I have worked out why that was so..
a overgrown backup file that was being transfered daily)
So I need to find out what that traffic is.
What is a recommended log analysers to help me quickly here? Want it to
tell me how much data is being transfered by which protocol
Or any recommended procedure to identify that traffic?
Any ideas please?
Its a Ubuntu 10.04 server, running Apache, Postfix and related stuff
(Spamassassin, Amavisd etc) (I had varnish on it, but I turned it off)
Cheers
Daniel.
Synopsis: ARM v6 CPUs are significantly slower than ARMv7 CPUs at the
same clock speed, at least when running Debian (armhf) on them.
I know it's a rather naive benchmark, but I tried running a tiny Perl
program to find all the prime numbers under 100,000 on both the
Raspberry Pi and the BeagleBone.
They're both 700 MHz ARM CPUs, but the Raspberry runs on the older v6
spec CPU.
Surprisingly, this seems to make a huge difference to performance.
My desktop (3GHz i7) - 3.3 seconds
BeagleBone (720 MHz ARMv7)- 68 seconds
Raspberry Pi (700 MHz ARMv6) - 125 seconds
I thought I'd try it quickly in Scala, but it seems the JVM isn't very
well optimised on ARM yet :(
So I tried it with just doing primes to 10,000 instead.
Desktop - 0.33 s
Beagle - 19 s (zero) / 34 s (jamvm)
Raspberry - 58 s (jamvm) / 79 s (zero)
It's curious to note that the best JVM varies between the architectures;
Zero was a lot faster than JamVM on the Beagle, but it was a lot slower
on Raspberry Pi. (for this naive benchmark)
Does anyone know why that is, or if there's any way to get better jvm
performance?
Hi,
my daughter has a new iPad now, it is a requirement at the college she
goes.
Great, that fossil does not even know what to to with a USB stick? Any
workarounds?
I guess I could put the data on the Linux side under a webserver's root.
Other ways? Does Apple still supports Apple File Server (would be netatalk
on the Linux side?)
I really hate computers that are just made with $$ in the eyes, without
any intention to provide a good product to the customers.
Compared to the iPad, the Android based ZaTab is much friendlier to its
environment.
A fortnight ago I had four kids, aged 9 to 12, at home. The played using
three tablets (2 ZaTabs, 1 iPad) and they did not care at all which brand
it was - it looked so similar they did not notice.
Regards
Peter
On Nov 20, 2012 9:23 AM, "Trent W. Buck" <trentbuck(a)gmail.com> wrote:
>
> Russell Coker <russell(a)coker.com.au> writes:
>
> ebook reader might be cost effective because you can study at night
> after the library closes, without having to cart dead trees back and
> forth, and with access to content that would otherwise require a trip to
> the state library.
They also run for a *very* long time, and are cheaper, smaller and lighter
than in ipad. As a uni student I find my ereader really useful.
> Are you assuming every student buys every textbook, and throws it away
> at the end of the year?
At my mostly middle class school we tried to buy and sell books with our
friends, and if that failed they were sold and bought through the school.
If you got them second hand and kept them in good shape you could break
even.
At 11:20 AM 11/20/2012, Brian May wrote:
>On 20 November 2012 11:12, Bianca Gibson
><bianca.rachel.gibson(a)gmail.com> wrote:
> > They also run for a *very* long time, and are cheaper, smaller and lighter
> > than in ipad. As a uni student I find my ereader really useful.
>
>Not to mention readable in sun glare.
>
>I find my Galaxy 10.1 completely useless on the train on some days,
I'd agree totally. For serious reading, ereaders leave tablets for
dead, especially in outdoor and other bright conditions.
73 de VK3JED / VK3IRL
http://vkradio.com
Agreed, I'm using Dropbox to share files between Linux PCs, Doze boxes, a Nexus tab and my phone all without a hitch
Sent from my GT-I9305T on the Telstra 4G networkJobst Schmalenbach <jobst(a)barrett.com.au> wrote:what about google (drive/docs) and/or dropbox?
Jobst
On Mon, Nov 19, 2012 at 10:16:33AM +1100, Peter Ross (Peter.Ross(a)bogen.in-berlin.de) wrote:
> Hi,
>
> my daughter has a new iPad now, it is a requirement at the college she
> goes.
>
> Great, that fossil does not even know what to to with a USB stick? Any
> workarounds?
>
> I guess I could put the data on the Linux side under a webserver's root.
> Other ways? Does Apple still supports Apple File Server (would be netatalk
> on the Linux side?)
>
> I really hate computers that are just made with $$ in the eyes, without
> any intention to provide a good product to the customers.
>
> Compared to the iPad, the Android based ZaTab is much friendlier to its
> environment.
>
> A fortnight ago I had four kids, aged 9 to 12, at home. The played using
> three tablets (2 ZaTabs, 1 iPad) and they did not care at all which brand
> it was - it looked so similar they did not notice.
>
> Regards
> Peter
> _______________________________________________
> luv-main mailing list
> luv-main(a)luv.asn.au
> http://lists.luv.asn.au/listinfo/luv-main
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Hi LUV Main
I have kept documentation in any formats from plain text, pod, apt, to docbook, tex and more. But I have never had to use Word (yes lucky me).
I tend to have a Makefile, that does all the file converting necessary (e.g. turn my Mindmap into SVG into JPG, or similar).
And of course, using Docbook (or APT to docbook) or TeX I can control all the formatting.
Which leads me to my question. I am working now in an environment which is all word on dropbox. I am going crazy with formatting issues, corrupt documents (I have even installed MS Word on my Mac laptop to see if I can work around the problems by going to the source).
A quick think suggests solutions for me is one of the following:
* Modular word docs and use includes - not ideal still problems with formatting etc
* Wiki (there is a Confluence system available for me to use) - but no offline editing, and terrible word/pdf output formatting
* Build system (some text editable format I can use to generate the word docs).
For the moment, the lucky thing is that I am working on these particular document mostly alone. That may not last and that is where the Wiki comes in, because at least the barrier to entry for the non-technical staff is low.
Long story short, I am looking for examples, recommendations and personal experience. What would you use?
Thanks
Scott
Is there any tool that will unmount a filesystem and fsck say once
every 2-3 months to avoid having the
massive slow fsck on the reboot every 6-12 months?
If not I am thinking of a cron job that tries to umount the filesystem
in the middle of the night, run a basic fsck and if all goes well
remounts it mailing the results to root.
I have a modest root/usr partitions but the larger other partitions
only used for recording TV take 30+ minutes to do the occasional fsck
and that always is demanded sometimes very inconveniently on a reboot.
Andrew
Exetel made some changes to their backend on Fri which screwed me.
I investigated this morning and now have a fix, detailed below.
pppd is pretty cargo-culty, so let me know if I'm missing any best
practice options.
* * *
I believe this issue is now resolved. By explicitly disabling PAP
authentication, I get a public address (58.96.65.206).
Detailed analysis follows.
On Tue Nov 13 16:08:25 2012 +1100, we changed our CHAP password to the
new one you supplied. Prior to that, our PPP configuration was
unchanged since 19 Jul 2012.
The following logs show the last correct PPP negotiation, and the
first incorrect negotiation.
PLEASE NOTE in both cases AUTHENTICATION SUCCEEDS.
2012-11-09T17:19:08.008040+11:00 alpha pppd[6844]: Using interface ppp1
2012-11-09T17:19:08.008071+11:00 alpha pppd[6844]: Connect: ppp1 <--> 0.8.35
2012-11-09T17:19:11.089919+11:00 alpha pppd[6844]: CHAP authentication succeeded
2012-11-09T17:19:11.089947+11:00 alpha pppd[6844]: CHAP authentication succeeded
2012-11-09T17:19:11.167105+11:00 alpha pppd[6844]: Cannot determine ethernet address for proxy ARP
2012-11-09T17:19:11.167135+11:00 alpha pppd[6844]: local IP address 58.96.67.67
2012-11-09T17:19:11.167152+11:00 alpha pppd[6844]: remote IP address 58.96.2.202
2012-11-09T17:20:16.098565+11:00 alpha pppd[6844]: No response to 3 echo-requests
2012-11-09T17:20:16.098595+11:00 alpha pppd[6844]: Serial link appears to be disconnected.
2012-11-09T17:20:16.098643+11:00 alpha pppd[6844]: Connect time 1.1 minutes.
2012-11-09T17:20:16.098661+11:00 alpha pppd[6844]: Sent 420 bytes, received 420 bytes.
2012-11-09T17:20:22.119564+11:00 alpha pppd[6844]: Connection terminated.
2012-11-09T17:20:22.181547+11:00 alpha pppd[6844]: Modem hangup
2012-11-09T17:45:21.300013+11:00 alpha pppd[6844]: Using interface ppp1
2012-11-09T17:45:21.300043+11:00 alpha pppd[6844]: Connect: ppp1 <--> 0.8.35
2012-11-09T17:45:24.473407+11:00 alpha pppd[6844]: PAP authentication succeeded
2012-11-09T17:45:24.531114+11:00 alpha pppd[6844]: Cannot determine ethernet address for proxy ARP
2012-11-09T17:45:24.531144+11:00 alpha pppd[6844]: local IP address 10.35.14.66
2012-11-09T17:45:24.531161+11:00 alpha pppd[6844]: remote IP address 220.233.1.169
2012-11-09T18:45:24.515123+11:00 alpha pppd[6844]: LCP terminated by peer
2012-11-09T18:45:24.515185+11:00 alpha pppd[6844]: Connect time 60.0 minutes.
2012-11-09T18:45:24.515204+11:00 alpha pppd[6844]: Sent 0 bytes, received 0 bytes.
2012-11-09T18:45:27.532734+11:00 alpha pppd[6844]: Connection terminated.
2012-11-09T18:45:27.597564+11:00 alpha pppd[6844]: Modem hangup
Our modem runs Ubuntu 10.04, with pppd 2.4.5~git20081126t100229-0ubuntu3.
Our ppp configuration is as follows (password is elided).
options:asyncmap 0
options:noauth
options:crtscts
options:lock
options:hide-password
options:modem
options:proxyarp
options:lcp-echo-interval 5
options:lcp-echo-failure 3
options:noipx
peers/internode:user "UNPRINTABLE(a)internode.on.net"
peers/internode:plugin pppoatm.so
peers/internode:1.8.35
peers/internode:noipdefault
peers/internode:persist
peers/internode:maxfail 0
peers/internode:noauth
peers/internode:nodeflate
peers/internode:linkname internode
peers/internode:nodetach
peers/exetel:user "UNPRINTABLE(a)vic.exetel.com.au"
peers/exetel:plugin pppoatm.so
peers/exetel:0.8.35
peers/exetel:noipdefault
peers/exetel:persist
peers/exetel:maxfail 0
peers/exetel:noauth
peers/exetel:nodeflate
peers/exetel:linkname exetel
peers/exetel:nodetach
chap-secrets:UNPRINTABLE@vic.exetel.com.au * "UNPRINTABLE" *
PLEASE NOTE that we have a password configured in chap-secrets, but
not in pap-secrets. I speculate that the current issue is caused by a
combination of the following:
- our modem currently tries PAP before CHAP
- you used to reject PAP, so we proceeded to CHAP which works.
- you now accept PAP, but give a private IP. Possibly this is
misconfiguration; possibly it's some kind of "captive portal"-style
artefact to help users with misconfigured modems.
Experimentally, I added "refuse-pap" to peers/exetel. After this, the
point-to-point link has reasonable addresses:
2012-11-14T11:58:21.762615+11:00 alpha pppd[3208]: Using interface ppp1
2012-11-14T11:58:21.762784+11:00 alpha pppd[3208]: Connect: ppp1 <--> 0.8.35
2012-11-14T11:58:23.906234+11:00 alpha pppd[3208]: CHAP authentication succeeded
2012-11-14T11:58:23.906261+11:00 alpha pppd[3208]: CHAP authentication succeeded
2012-11-14T11:58:23.990924+11:00 alpha pppd[3208]: Cannot determine ethernet address for proxy ARP
2012-11-14T11:58:23.990954+11:00 alpha pppd[3208]: local IP address 58.96.65.206
2012-11-14T11:58:23.990972+11:00 alpha pppd[3208]: remote IP address 220.233.1.171
I've never had a whole lot of success with running more than two screens
on X.
I say that on a system with three heads and on which I've run up to four
for a laugh, but I'm not that happy with it so looking for advice.
I have two nVidia cards, for a total of four outputs.
I have these configured in xorg.conf using Xinerama.
Although GLX loads and appears to work, I'm missing XRANDR and COMPOSITE
extensions as these aren't compatible with Xinerama. This really limits
me in the window managers I can run..
Gnome 3 shell, Unity and Cinnamon all die horribly, Compiz is impossible
to get going, and many others just don't "get" multi-head.
XFCE seems to work fine, which is what I've been using for a while, but
I really miss having all the niceties of Compiz and Cinnamon.
What setup do you use 3+ monitor multi-head on Linux?
Cheers,
Toby
